data.cms.gov: Accessibility — week 2026-W31

Automated Accessibility Conformance Report (OpenACR): Download ACR. Machine-readable; compatible with GSA OpenACR tooling. Automated tools find ~⅓ of real barriers — supplement with manual AT testing.

Training priorities

Top WCAG success criteria by pages affected this week. Use these to focus team training on the highest-impact issues.

SC	Criterion	Pages	Rules
1.4.8	WCAG 1.4.8	1200	2
2.5.5	WCAG 2.5.5	1150	1
1.4.6	WCAG 1.4.6	699	1
1.4.3	Contrast (Minimum)	687	2
2.1.1	Keyboard Access	613	1

Next 10 actions

Clusters are fingerprinted by normalized selector path + rule id + snippet shape. Rank score = (severity weight × pages affected) / distinct components for the rule. This supersedes the template threshold heuristic while still surfacing it as a validation signal.

Top 10 clustered component fixes for this week.
Cluster	Severity	Pages	Who it affects	How to fix	Evidence	Decision
Banner landmark should not be contained in another landmark · unattributed component Fix one place, resolve ~1376 finding(s) on 1376 page(s). XPath / selector: `.Header` `<header class="Header" style="position: sticky;">`	Moderate	1376	Requires manual testing.	Put the banner landmark (<header>) at the top level, not nested inside another landmark.	pages (CSV)	Decision Assigned to Notes
Scrollable region must have keyboard access · unattributed component Fix one place, resolve ~613 finding(s) on 613 page(s). XPath / selector: `.tbody-container` `<div class="tbody-container">`	Serious	613	Without vision, Limited manipulation/strength, Limited reach	Make scrollable regions keyboard-focusable (tabindex="0") so keyboard users can scroll them.	pages (CSV)	Decision Assigned to Notes
First focusable element is link to main content · unattributed component Fix one place, resolve ~699 finding(s) on 699 page(s). XPath / selector: `{"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys`	Moderate	699	Requires manual testing.	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r87	pages (CSV)	Decision Assigned to Notes
Select element must have an accessible name · unattributed component Fix one place, resolve ~126 finding(s) on 126 page(s). XPath / selector: `.form-control` `<select name="version-select" class="form-control">`	Critical	126	Without vision, Limited vision, Limited manipulation/strength	Give the <select> an accessible name via a <label> or aria-label.	pages (CSV)	Decision Assigned to Notes
Target size is at least 44×44 CSS pixels (Enhanced) · unattributed component Fix one place, resolve ~677 finding(s) on 677 page(s). XPath / selector: `<a href="/search" title="">`	Moderate	677	Requires manual testing.	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111	pages (CSV)	Decision Assigned to Notes
Target size is at least 44×44 CSS pixels (Enhanced) · unattributed component Fix one place, resolve ~677 finding(s) on 677 page(s). XPath / selector: `<a href="/tools" title="">`	Moderate	677	Requires manual testing.	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111	pages (CSV)	Decision Assigned to Notes
Target size is at least 44×44 CSS pixels (Enhanced) · unattributed component Fix one place, resolve ~677 finding(s) on 677 page(s). XPath / selector: `<a href="/browse-data-categories" title="">`	Moderate	677	Requires manual testing.	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111	pages (CSV)	Decision Assigned to Notes
aria-hidden element does not contain focusable elements · unattributed component Fix one place, resolve ~369 finding(s) on 369 page(s). XPath / selector: `<div aria-labelledby="overview__tab" aria-hidden="true" class="ds-c-tabs__panel" id="overview">`	Moderate	369	Without vision, Limited vision, Limited manipulation/strength	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r17	pages (CSV)	Decision Assigned to Notes
aria-hidden element does not contain focusable elements · unattributed component Fix one place, resolve ~728 finding(s) on 364 page(s). XPath / selector: `<div id="tooltip-trigger--103" tabindex="-1" class="ds-c-tooltip" data-placement="bottom-start">`	Moderate	364	Without vision, Limited vision, Limited manipulation/strength	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r17	pages (CSV)	Decision Assigned to Notes
Target size is at least 44×44 CSS pixels (Enhanced) · unattributed component Fix one place, resolve ~473 finding(s) on 473 page(s). XPath / selector: `<a class="ally-skip-link" href="#main-content">`	Moderate	473	Requires manual testing.	See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111	pages (CSV)	Decision Assigned to Notes

Bug reports

17 issue type(s) are shown by default out of 40 total. Prioritized by severity, key pages, WCAG level, and prevalence; use the toggle to show everything.

Overall severity mix: 2 critical, 10 serious, 26 moderate, 2 minor. By WCAG category: 18 WCAG 2.0 A, 2 WCAG 2.0 AA, 1 WCAG 2.1 A, 1 WCAG 2.2 AA, 4 WCAG 2.x AAA, 6 Best Practice, 8 Undetermined. Ordered by severity, key-page impact, WCAG level, and prevalence. Following accessibility bug-reporting best practices. Download: Markdown · JSON (full archive) · JSON (AI diagnostic) · CSV (all findings) · Priority pages CSV · Priority pages JSON.

Automated testing does not establish full WCAG conformance. Findings in the verification lane require manual testing before they are treated as confirmed failures.

Default view shows 17 prioritized issue type(s); 23 more are available if you switch to "Show everything".

2 finding(s) marked "possible duplicate" — Alfa and axe-core both flagged the same WCAG SC on overlapping pages. If they target the same element, the axe-core report is authoritative. Filter the CSV by possible_duplicate_of to see these. Two engines flagging the same barrier reduces the chance of a false positive.

Findings needing review

These findings need manual verification before they can be treated as confirmed failures. Obligation remains visible for each finding.

Serious axe scrollable-region-focusable WCAG 2.0 A Scrollable region must have keyboard access (WCAG 2.1.1) 613/2777 pages · 613 instances Likely template

Bug ID: VS-eaab37ac
Pattern ID: VS-c613c153
Combined ID: VS-eaab37ac (pattern VS-c613c153) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 2.1.1 Keyboard (Level A, WCAG 2.0)
Rule: axe-core — Scrollable region must have keyboard access [scrollable-region-focusable]
Example URL: https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: .tbody-container
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<div class="tbody-container">

Description

Scrollable region must have keyboard access. Detected by axe-core rule scrollable-region-focusable on 613 of 2777 scanned pages (613 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: .tbody-container
Confirm the axe-core finding for rule scrollable-region-focusable against WCAG 2.1.1 Keyboard.

Impact

Affects Without vision (1.0%), Limited manipulation/strength (13.0%), Limited reach (2.0%).

Without vision — 1.0% of population
Limited manipulation/strength — 13.0% of population
Limited reach — 2.0% of population

Affected pages

…and more — all 613 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Make scrollable regions keyboard-focusable (tabindex="0") so keyboard users can scroll them.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/scrollable-region-focusable?application=axeAPI

Triage status Notes

Critical axe select-name WCAG 2.0 A Select element must have an accessible name (WCAG 4.1.2) 127/2777 pages · 127 instances Likely template

Bug ID: VS-b21d1758
Pattern ID: VS-fab92378
Combined ID: VS-b21d1758 (pattern VS-fab92378) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: axe-core — Select element must have an accessible name [select-name]
Example URL: https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs
XPath / selector: .form-control
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<select name="version-select" class="form-control">

Description

Select element must have an accessible name. Detected by axe-core rule select-name on 127 of 2777 scanned pages (127 instances).

Steps to reproduce

Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
Locate the element: .form-control
Confirm the axe-core finding for rule select-name against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

…and more — all 127 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give the <select> an accessible name via a <label> or aria-label.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/select-name?application=axeAPI

Triage status Notes

Serious axe color-contrast WCAG 2.0 AA Elements must meet minimum color contrast ratio thresholds (WCAG 1.4.3) 13/2777 pages · 140 instances Likely template

Bug ID: VS-1a437084
Pattern ID: VS-be8d563e
Combined ID: VS-1a437084 (pattern VS-be8d563e) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 AA
Obligation: required
Handling: review
WCAG SC: 1.4.3 Contrast (Minimum) (Level AA, WCAG 2.0)
Rule: axe-core — Elements must meet minimum color contrast ratio thresholds [color-contrast]
Example URL: https://data.cms.gov/provider-data/datasets?theme%5B0%5D=Physician+office+visit+costs
XPath / selector: a[aria-describedby="tooltip-trigger--120"]
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<a aria-describedby="tooltip-trigger--120" class="ds-c-tooltip__trigger dkan-disabled-link" tabindex="0">

Description

Elements must meet minimum color contrast ratio thresholds. Detected by axe-core rule color-contrast on 13 of 2777 scanned pages (140 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/datasets?theme%5B0%5D=Physician+office+visit+costs.
Locate the element: a[aria-describedby="tooltip-trigger--120"]
Confirm the axe-core finding for rule color-contrast against WCAG 1.4.3 Contrast (Minimum).

Impact

Affects Limited vision (2.4%), Without color perception (4.5%).

Limited vision — 2.4% of population
Without color perception — 4.5% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Increase the contrast between text and its background to at least 4.5:1 (3:1 for large text). Check both light and dark modes.

Drupal tip: Check your Drupal theme's base CSS. Themes like Olivero and Bartik have contrast issues in default color schemes — override failing color pairs in your subtheme's style.css.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/color-contrast?application=axeAPI

Triage status Notes

Serious axe link-in-text-block WCAG 2.0 A Links must be distinguishable without relying on color (WCAG 1.4.1) 11/2777 pages · 62 instances Likely template

Bug ID: VS-48534b05
Pattern ID: VS-8ade3360
Combined ID: VS-48534b05 (pattern VS-8ade3360) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.4.1 Use of Color (Level A, WCAG 2.0)
Rule: axe-core — Links must be distinguishable without relying on color [link-in-text-block]
Example URL: https://data.cms.gov/resources/2018-value-modifier-performance-year-2016-methodology
XPath / selector: #RichTextField-010d1db8-6adc-461d-8253-3996670d5a9a > p > a[target="_blank"][rel="noopener noreferrer"]
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<a href="https://www.cms.gov/Medicare/Medicare-Fee-for-Service-Payment/PhysicianFeedbackProgram/Downloads/Detailed-Methodology-for-the-2018-Value-Modifier-and-2016-Quality-and-Resource-Use-Report-.pdf

Description

Links must be distinguishable without relying on color. Detected by axe-core rule link-in-text-block on 11 of 2777 scanned pages (62 instances).

Steps to reproduce

Open https://data.cms.gov/resources/2018-value-modifier-performance-year-2016-methodology.
Locate the element: #RichTextField-010d1db8-6adc-461d-8253-3996670d5a9a > p > a[target="_blank"][rel="noopener noreferrer"]
Confirm the axe-core finding for rule link-in-text-block against WCAG 1.4.1 Use of Color.

Impact

Affects Without color perception (4.5%), Limited vision (2.4%).

Without color perception — 4.5% of population
Limited vision — 2.4% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/link-in-text-block?application=axeAPI

Triage status Notes

Serious axe listitem WCAG 2.0 A <li> elements must be contained in a <ul> or <ol> (WCAG 1.3.1) 10/2777 pages · 43 instances Likely template

Bug ID: VS-b4999ba9
Pattern ID: VS-6175596b
Combined ID: VS-b4999ba9 (pattern VS-6175596b) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.3.1 Info and Relationships (Level A, WCAG 2.0)
Rule: axe-core — <li> elements must be contained in a <ul> or <ol> [listitem]
Example URL: https://data.cms.gov/provider-data/topics/doctors-clinicians
XPath / selector: .dc-c-search-list-item.ds-u-padding-top--3:nth-child(1)
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<li class="dc-c-search-list-item ds-u-padding-top--3">

Description

<li> elements must be contained in a <ul> or <ol>. Detected by axe-core rule listitem on 10 of 2777 scanned pages (43 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/topics/doctors-clinicians.
Locate the element: .dc-c-search-list-item.ds-u-padding-top--3:nth-child(1)
Confirm the axe-core finding for rule listitem against WCAG 1.3.1 Info and Relationships.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: <li> must be inside a <ul> or <ol>.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/listitem?application=axeAPI

Triage status Notes

Critical axe label WCAG 2.0 A Form elements must have labels (WCAG 4.1.2) 8/2777 pages · 14 instances

Bug ID: VS-5fde38a2
Pattern ID: VS-fafffee0
Combined ID: VS-5fde38a2 (pattern VS-fafffee0) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: axe-core — Form elements must have labels [label]
Example URL: https://data.cms.gov/tools/medicare-part-d-prescriber-look-up-tool
XPath / selector: #react-select-2-input
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<input class="InteractiveToolsSear..." autocapitalize="none" autocomplete="off" autocorrect="off" id="react-select-2-input" spellcheck="false" tabindex="0" type="text" aria-autocomplete="list" aria-ex

Description

Form elements must have labels. Detected by axe-core rule label on 8 of 2777 scanned pages (14 instances).

Steps to reproduce

Open https://data.cms.gov/tools/medicare-part-d-prescriber-look-up-tool.
Locate the element: #react-select-2-input
Confirm the axe-core finding for rule label against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Associate every form control with a <label> (via for/id) or an aria-label/aria-labelledby.

Drupal tip: Use Drupal's form element "Label" setting. In Webform, every element has a Label field — ensure it's not empty or hidden. Check that twig templates don't strip <label> elements from form fields.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/label?application=axeAPI

Triage status Notes

Serious axe role-img-alt WCAG 2.0 A [role="img"] elements must have alternative text (WCAG 1.1.1) 5/2777 pages · 14 instances

Bug ID: VS-d631bd29
Pattern ID: VS-ede1e565
Combined ID: VS-d631bd29 (pattern VS-ede1e565) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.1.1 Non-text Content (Level A, WCAG 2.0)
Rule: axe-core — [role="img"] elements must have alternative text [role-img-alt]
Example URL: https://data.cms.gov/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug
XPath / selector: canvas
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<canvas role="img" height="500" width="768" style="display: block; box-sizing: border-box; height: 500px; width: 768px;"></canvas>

Description

[role="img"] elements must have alternative text. Detected by axe-core rule role-img-alt on 5 of 2777 scanned pages (14 instances).

Steps to reproduce

Open https://data.cms.gov/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug.
Locate the element: canvas
Confirm the axe-core finding for rule role-img-alt against WCAG 1.1.1 Non-text Content.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Elements with role="img" need an accessible name via aria-label or aria-labelledby.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/role-img-alt?application=axeAPI

Triage status Notes

Serious axe svg-img-alt WCAG 2.0 A <svg> elements with an img role must have alternative text (WCAG 1.1.1) 1/2777 pages · 10 instances Likely content

Bug ID: VS-25969f65
Pattern ID: VS-cc981723
Combined ID: VS-25969f65 (pattern VS-cc981723) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.1.1 Non-text Content (Level A, WCAG 2.0)
Rule: axe-core — <svg> elements with an img role must have alternative text [svg-img-alt]
Example URL: https://data.cms.gov/provider-data
XPath / selector: path[fill="#7350A3"]
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<path role="graphics-symbol" fill="#7350A3" d="M2,-154.154A154.167,154.167,0,0,1,115.054,-102.615L13.742,-14.589A20.042,20.042,0,0,0,2,-19.942Z" style="cursor: initial;"></path>

Description

Steps to reproduce

Open https://data.cms.gov/provider-data.
Locate the element: path[fill="#7350A3"]
Confirm the axe-core finding for rule svg-img-alt against WCAG 1.1.1 Non-text Content.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

/provider-data

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give the <svg> with an image role an accessible name (<title> or aria-label).

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/svg-img-alt?application=axeAPI

Triage status Notes

Serious axe list WCAG 2.0 A <ul> and <ol> must only directly contain <li>, <script> or <template> elements (WCAG 1.3.1) 1/2777 pages · 1 instances Likely content

Bug ID: VS-69190b96
Pattern ID: VS-a0bdbdf6
Combined ID: VS-69190b96 (pattern VS-a0bdbdf6) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.3.1 Info and Relationships (Level A, WCAG 2.0)
Rule: axe-core — <ul> and <ol> must only directly contain <li>, <script> or <template> elements [list]
Example URL: https://data.cms.gov/provider-data/datasets?+Gynecology=&keyword%5B%5D=Obstetrics+
XPath / selector: ol[data-testid="results-list"]
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<ol class="dc-dataset-search-list ds-u-padding--0 ds-u-margin-top--0 ds-u-margin-bottom--4 ds-u-display--block" data-testid="results-list">

Description

<ul> and <ol> must only directly contain <li>, <script> or <template> elements. Detected by axe-core rule list on 1 of 2777 scanned pages (1 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/datasets?+Gynecology=&keyword%5B%5D=Obstetrics+.
Locate the element: ol[data-testid="results-list"]
Confirm the axe-core finding for rule list against WCAG 1.3.1 Info and Relationships.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

/provider-data/datasets

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Use <ul>/<ol> with only <li> children for lists; don't fake lists with <div>s.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/list?application=axeAPI

Triage status Notes

Serious axe aria-command-name WCAG 2.0 A ARIA commands must have an accessible name (WCAG 4.1.2) 1/2777 pages · 1 instances Likely content

Bug ID: VS-e71d7143
Pattern ID: VS-5c82bd60
Combined ID: VS-e71d7143 (pattern VS-5c82bd60) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: axe-core — ARIA commands must have an accessible name [aria-command-name]
Example URL: https://data.cms.gov/provider-data/birthing-friendly-hospitals-and-health-systems
XPath / selector: .p-dropdown-trigger
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<div class="p-dropdown-trigger" role="button" aria-haspopup="listbox" aria-expanded="false" data-pc-section="trigger">

Description

ARIA commands must have an accessible name. Detected by axe-core rule aria-command-name on 1 of 2777 scanned pages (1 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/birthing-friendly-hospitals-and-health-systems.
Locate the element: .p-dropdown-trigger
Confirm the axe-core finding for rule aria-command-name against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

/provider-data/birthing-friendly-hospitals-and-health-systems

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give the command (button/link/menuitem) an accessible name via text or aria-label.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/aria-command-name?application=axeAPI

Triage status Notes

Serious axe aria-prohibited-attr WCAG 2.0 A Elements must only use permitted ARIA attributes (WCAG 4.1.2) 1/2777 pages · 1 instances Likely content

Bug ID: VS-3d192113
Pattern ID: VS-ebb1c464
Combined ID: VS-3d192113 (pattern VS-ebb1c464) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: axe-core — Elements must only use permitted ARIA attributes [aria-prohibited-attr]
Example URL: https://data.cms.gov/medicare-shared-savings-program/accountable-care-organizations
XPath / selector: .ExpandIcon__wrapper
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<div class="ExpandIcon__wrapper" title="Expand" aria-label="Expand">

Description

Elements must only use permitted ARIA attributes. Detected by axe-core rule aria-prohibited-attr on 1 of 2777 scanned pages (1 instances).

Steps to reproduce

Open https://data.cms.gov/medicare-shared-savings-program/accountable-care-organizations.
Locate the element: .ExpandIcon__wrapper
Confirm the axe-core finding for rule aria-prohibited-attr against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

/medicare-shared-savings-program/accountable-care-organizations

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/aria-prohibited-attr?application=axeAPI

Triage status Notes

Serious axe label-title-only Best Practice Form elements should have a visible label (WCAG criterion undetermined) 7/2777 pages · 11 instances

Bug ID: VS-a78ba437
Pattern ID: VS-33841929
Combined ID: VS-a78ba437 (pattern VS-33841929) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Form elements should have a visible label [label-title-only]
Example URL: https://data.cms.gov/tools/medicare-part-d-prescriber-look-up-tool
XPath / selector: #react-select-2-input
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<input class="InteractiveToolsSear..." autocapitalize="none" autocomplete="off" autocorrect="off" id="react-select-2-input" spellcheck="false" tabindex="0" type="text" aria-autocomplete="list" aria-ex

Description

Form elements should have a visible label. Detected by axe-core rule label-title-only on 7 of 2777 scanned pages (11 instances).

Steps to reproduce

Open https://data.cms.gov/tools/medicare-part-d-prescriber-look-up-tool.
Locate the element: #react-select-2-input
Confirm the axe-core finding for rule label-title-only.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/label-title-only?application=axeAPI

Triage status Notes

Moderate alfa sia-r69 WCAG 2.0 AA Text has sufficient color contrast (Enhanced) (WCAG 1.4.3) 674/2777 pages · 8322 instances Likely template

Bug ID: VS-8305d82a
Pattern ID: VS-f7e99f4b
Combined ID: VS-8305d82a (pattern VS-f7e99f4b) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 AA
Obligation: required
Handling: review
WCAG SC: 1.4.3 Contrast (Minimum) (Level AA, WCAG 2.0)
Rule: Siteimprove Alfa — Text has sufficient color contrast (Enhanced) [sia-r69]
Example URL: https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: text: "A federal government website managed and paid for by the U.S. Centers for Medicare & Medicaid Services."
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

Text has sufficient color contrast (Enhanced). Detected by Siteimprove Alfa rule sia-r69 on 674 of 2777 scanned pages (8322 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: text: "A federal government website managed and paid for by the U.S. Centers for Medicare & Medicaid Services."
Confirm the Siteimprove Alfa finding for rule sia-r69 against WCAG 1.4.3 Contrast (Minimum).

Impact

Affects Limited vision (2.4%), Without color perception (4.5%).

Limited vision — 2.4% of population
Without color perception — 4.5% of population

Affected pages

…and more — all 674 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Increase text contrast to meet WCAG AA (4.5:1, or 3:1 for large text).

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r69

Triage status Notes

Moderate alfa sia-r17 WCAG 2.0 A aria-hidden element does not contain focusable elements (WCAG 4.1.2) 370/2777 pages · 1801 instances Likely template

Bug ID: VS-1e29f4e8
Pattern ID: VS-f6cf30ff
Combined ID: VS-1e29f4e8 (pattern VS-f6cf30ff) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: Siteimprove Alfa — aria-hidden element does not contain focusable elements [sia-r17]
Example URL: https://data.cms.gov/provider-data/dataset/medrec?page=3
XPath / selector: <div id="tooltip-trigger--103" tabindex="-1" class="ds-c-tooltip" data-placement="bottom-start">
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

aria-hidden element does not contain focusable elements. Detected by Siteimprove Alfa rule sia-r17 on 370 of 2777 scanned pages (1801 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/dataset/medrec?page=3.
Locate the element: <div id="tooltip-trigger--103" tabindex="-1" class="ds-c-tooltip" data-placement="bottom-start">
Confirm the Siteimprove Alfa finding for rule sia-r17 against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

…and more — all 370 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r17

Triage status Notes

Moderate alfa sia-r8 WCAG 2.0 A Form field has accessible name (WCAG 4.1.2) 66/2777 pages · 69 instances Likely template

Bug ID: VS-67464fc7
Pattern ID: VS-a48e6078
Combined ID: VS-67464fc7 (pattern VS-a48e6078) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: Siteimprove Alfa — Form field has accessible name [sia-r8]
Example URL: https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs
XPath / selector: <select name="version-select" class="form-control">
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

Form field has accessible name. Detected by Siteimprove Alfa rule sia-r8 on 66 of 2777 scanned pages (69 instances).

Steps to reproduce

Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
Locate the element: <select name="version-select" class="form-control">
Confirm the Siteimprove Alfa finding for rule sia-r8 against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

…and more — all 66 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Associate the form field with a label.

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r8

Triage status Notes

Moderate alfa sia-r68 WCAG 2.0 A Presentational children of an element are not focusable (WCAG 1.3.1) 18/2777 pages · 18 instances Likely template

Bug ID: VS-b1ec09fb
Pattern ID: VS-d6097011
Combined ID: VS-b1ec09fb (pattern VS-d6097011) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.3.1 Info and Relationships (Level A, WCAG 2.0)
Rule: Siteimprove Alfa — Presentational children of an element are not focusable [sia-r68]
Example URL: https://data.cms.gov/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-part-b-spending-by-drug
XPath / selector: <ul class="list-container__list list-container__list-right">
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

Presentational children of an element are not focusable. Detected by Siteimprove Alfa rule sia-r68 on 18 of 2777 scanned pages (18 instances).

Steps to reproduce

Open https://data.cms.gov/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-part-b-spending-by-drug.
Locate the element: <ul class="list-container__list list-container__list-right">
Confirm the Siteimprove Alfa finding for rule sia-r68 against WCAG 1.3.1 Info and Relationships.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r68

Triage status Notes

Moderate alfa sia-r113 WCAG 2.2 AA Target size is at least 24×24 CSS pixels or has spacing (Minimum) (WCAG 2.5.8) 17/2777 pages · 48 instances Likely template

Bug ID: VS-614ebd92
Pattern ID: VS-179ad9b3
Combined ID: VS-614ebd92 (pattern VS-179ad9b3) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.2 AA
Obligation: required
Handling: review
WCAG SC: 2.5.8 Target Size (Minimum) (Level AA, WCAG 2.2)
Rule: Siteimprove Alfa — Target size is at least 24×24 CSS pixels or has spacing (Minimum) [sia-r113]
Example URL: https://data.cms.gov/resources/medicare-part-b-spending-by-drug-data-dictionary
XPath / selector: <button class="selected" aria-label="card 1">
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

Target size is at least 24×24 CSS pixels or has spacing (Minimum). Detected by Siteimprove Alfa rule sia-r113 on 17 of 2777 scanned pages (48 instances).

Steps to reproduce

Open https://data.cms.gov/resources/medicare-part-b-spending-by-drug-data-dictionary.
Locate the element: <button class="selected" aria-label="card 1">
Confirm the Siteimprove Alfa finding for rule sia-r113 against WCAG 2.5.8 Target Size (Minimum).

Impact

Affects Limited manipulation/strength (13.0%), Limited reach (2.0%), Limited vision (2.4%).

Limited manipulation/strength — 13.0% of population
Limited reach — 2.0% of population
Limited vision — 2.4% of population

Affected pages

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r113

Triage status Notes

Moderate axe landmark-banner-is-top-level Best Practice Banner landmark should not be contained in another landmark (WCAG criterion undetermined) 1376/2777 pages · 1376 instances Likely template

Bug ID: VS-37c9e032
Pattern ID: VS-30db094d
Combined ID: VS-37c9e032 (pattern VS-30db094d) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Banner landmark should not be contained in another landmark [landmark-banner-is-top-level]
Example URL: https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: .Header
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<header class="Header" style="position: sticky;">

Description

Banner landmark should not be contained in another landmark. Detected by axe-core rule landmark-banner-is-top-level on 1376 of 2777 scanned pages (1376 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: .Header
Confirm the axe-core finding for rule landmark-banner-is-top-level.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 1376 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Put the banner landmark (<header>) at the top level, not nested inside another landmark.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/landmark-banner-is-top-level?application=axeAPI

Triage status Notes

Moderate alfa sia-r73 WCAG 2.x AAA Text has minimum contrast ratio of 4.5:1 (WCAG 1.4.8) 1172/2777 pages · 17736 instances Likely template

Bug ID: VS-7e99f89c
Pattern ID: VS-2208081b
Combined ID: VS-7e99f89c (pattern VS-2208081b) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.x AAA
Obligation: aspirational
Handling: review
WCAG SC: 1.4.8 Visual Presentation (Level AAA, WCAG 2.0)
Rule: Siteimprove Alfa — Text has minimum contrast ratio of 4.5:1 [sia-r73]
Example URL: https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: <p class="usa-banner__header-text">
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

Text has minimum contrast ratio of 4.5:1. Detected by Siteimprove Alfa rule sia-r73 on 1172 of 2777 scanned pages (17736 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: <p class="usa-banner__header-text">
Confirm the Siteimprove Alfa finding for rule sia-r73 against WCAG 1.4.8 Visual Presentation.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 1172 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r73

Triage status Notes

Moderate alfa sia-r111 WCAG 2.x AAA Target size is at least 44×44 CSS pixels (Enhanced) (WCAG 2.5.5) 1150/2777 pages · 27656 instances Likely template

Bug ID: VS-a9d5b108
Pattern ID: VS-cb53cc4d
Combined ID: VS-a9d5b108 (pattern VS-cb53cc4d) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.x AAA
Obligation: aspirational
Handling: review
WCAG SC: 2.5.5 Target Size (Enhanced) (Level AAA, WCAG 2.1)
Rule: Siteimprove Alfa — Target size is at least 44×44 CSS pixels (Enhanced) [sia-r111]
Example URL: https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: <a href="/search" title="">
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

Target size is at least 44×44 CSS pixels (Enhanced). Detected by Siteimprove Alfa rule sia-r111 on 1150 of 2777 scanned pages (27656 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: <a href="/search" title="">
Confirm the Siteimprove Alfa finding for rule sia-r111 against WCAG 2.5.5 Target Size (Enhanced).

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 1150 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r111

Triage status Notes

Moderate alfa sia-r66 WCAG 2.x AAA Text has enhanced contrast (WCAG 1.4.6) 699/2777 pages · 20717 instances Likely template

Bug ID: VS-97a54bd1
Pattern ID: VS-646b1e0b
Combined ID: VS-97a54bd1 (pattern VS-646b1e0b) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.x AAA
Obligation: aspirational
Handling: review
WCAG SC: 1.4.6 Contrast (Enhanced) (Level AAA, WCAG 2.0)
Rule: Siteimprove Alfa — Text has enhanced contrast [sia-r66]
Example URL: https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: text: "Back to dataset overview"
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

Text has enhanced contrast. Detected by Siteimprove Alfa rule sia-r66 on 699 of 2777 scanned pages (20717 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: text: "Back to dataset overview"
Confirm the Siteimprove Alfa finding for rule sia-r66 against WCAG 1.4.6 Contrast (Enhanced).

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 699 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Increase text contrast to meet WCAG AAA (7:1).

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r66

Triage status Notes

Moderate alfa sia-r87 Undetermined First focusable element is link to main content (WCAG criterion undetermined) 699/2777 pages · 699 instances Likely template

Bug ID: VS-de689671
Pattern ID: VS-aa242c2d
Combined ID: VS-de689671 (pattern VS-aa242c2d) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: Siteimprove Alfa — First focusable element is link to main content [sia-r87]
Example URL: https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025
XPath / selector: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

First focusable element is link to main content. Detected by Siteimprove Alfa rule sia-r87 on 699 of 2777 scanned pages (699 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025.
Locate the element: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
Confirm the Siteimprove Alfa finding for rule sia-r87.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 699 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r87

Triage status Notes

Moderate axe heading-order Best Practice Heading levels should only increase by one (WCAG criterion undetermined) 305/2777 pages · 374 instances Likely template

Bug ID: VS-32eef4c9
Pattern ID: VS-d25f622d
Combined ID: VS-32eef4c9 (pattern VS-d25f622d) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Heading levels should only increase by one [heading-order]
Example URL: https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs
XPath / selector: .apiDocsContainer.container:nth-child(1) > .row > .col > h3
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<h3>Dataset Information</h3>

Description

Heading levels should only increase by one. Detected by axe-core rule heading-order on 305 of 2777 scanned pages (374 instances).

Steps to reproduce

Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
Locate the element: .apiDocsContainer.container:nth-child(1) > .row > .col > h3
Confirm the axe-core finding for rule heading-order.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 305 pages (CSV).

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Use heading levels in order (h1 → h2 → h3) without skipping; structure, not size.

Drupal tip: Drupal Views and blocks can insert headings at arbitrary levels. In the Views UI, set "Title tag" for each display. For block titles, configure the heading level in the block's layout settings.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/heading-order?application=axeAPI

Triage status Notes

Moderate alfa sia-r18 Undetermined aria attribute is permitted for element role (WCAG criterion undetermined) 205/2777 pages · 853 instances Likely template

Bug ID: VS-fde48930
Pattern ID: VS-e05344b9
Combined ID: VS-fde48930 (pattern VS-e05344b9) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: Siteimprove Alfa — aria attribute is permitted for element role [sia-r18]
Example URL: https://data.cms.gov/resources/public-reporting-of-missing-digital-contact-information-data-dictionary
XPath / selector: @aria-label="Open Public Reporting of Missing Digital Contact Information"
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

aria attribute is permitted for element role. Detected by Siteimprove Alfa rule sia-r18 on 205 of 2777 scanned pages (853 instances).

Steps to reproduce

Open https://data.cms.gov/resources/public-reporting-of-missing-digital-contact-information-data-dictionary.
Locate the element: @aria-label="Open Public Reporting of Missing Digital Contact Information"
Confirm the Siteimprove Alfa finding for rule sia-r18.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 205 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Only use ARIA states/properties that are allowed on this element/role.

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r18

Triage status Notes

Moderate alfa sia-r53 Undetermined Headings are structured hierarchically (WCAG criterion undetermined) 153/2777 pages · 190 instances Likely template

Bug ID: VS-5dea806d
Pattern ID: VS-f054f4a4
Combined ID: VS-5dea806d (pattern VS-f054f4a4) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: Siteimprove Alfa — Headings are structured hierarchically [sia-r53]
Example URL: https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs
XPath / selector: <h3>
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

Headings are structured hierarchically. Detected by Siteimprove Alfa rule sia-r53 on 153 of 2777 scanned pages (190 instances).

Steps to reproduce

Open https://data.cms.gov/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs.
Locate the element: <h3>
Confirm the Siteimprove Alfa finding for rule sia-r53.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 153 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Use headings in a logical, non-skipping order.

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r53

Triage status Notes

Moderate alfa sia-r74 WCAG 2.x AAA Link is distinguishable without relying on color (WCAG 1.4.8) 28/2777 pages · 28 instances Likely template

Bug ID: VS-fd7f0a44
Pattern ID: VS-fbf54eba
Combined ID: VS-fd7f0a44 (pattern VS-fbf54eba) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.x AAA
Obligation: aspirational
Handling: review
WCAG SC: 1.4.8 Visual Presentation (Level AAA, WCAG 2.0)
Rule: Siteimprove Alfa — Link is distinguishable without relying on color [sia-r74]
Example URL: https://data.cms.gov/tools/medicare-part-d-drug-spending-dashboard
XPath / selector: <p class="latestDateAvailable">
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

Link is distinguishable without relying on color. Detected by Siteimprove Alfa rule sia-r74 on 28 of 2777 scanned pages (28 instances).

Steps to reproduce

Open https://data.cms.gov/tools/medicare-part-d-drug-spending-dashboard.
Locate the element: <p class="latestDateAvailable">
Confirm the Siteimprove Alfa finding for rule sia-r74 against WCAG 1.4.8 Visual Presentation.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

…and more — all 28 pages (CSV).

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r74

Triage status Notes

Moderate alfa sia-r59 Undetermined Element with orientation is not locked (WCAG criterion undetermined) 22/2777 pages · 22 instances Likely template

Bug ID: VS-04ecde47
Pattern ID: VS-7fbb8b20
Combined ID: VS-04ecde47 (pattern VS-7fbb8b20) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: Siteimprove Alfa — Element with orientation is not locked [sia-r59]
Example URL: https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/provider-of-services-file-quality-improvement-and-evaluation-system/data/q1-2026
XPath / selector: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
History: first seen 2026-W28, last seen 2026-W31 (4 wk)

Description

Element with orientation is not locked. Detected by Siteimprove Alfa rule sia-r59 on 22 of 2777 scanned pages (22 instances).

Steps to reproduce

Open https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/provider-of-services-file-quality-improvement-and-evaluation-system/data/q1-2026.
Locate the element: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
Confirm the Siteimprove Alfa finding for rule sia-r59.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r59

Triage status Notes

Moderate axe landmark-unique Best Practice Landmarks should have a unique role or role/label/title (i.e. accessible name) c (WCAG criterion undetermined) 18/2777 pages · 18 instances Likely template

Bug ID: VS-cb448647
Pattern ID: VS-8806389c
Combined ID: VS-cb448647 (pattern VS-8806389c) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Landmarks should have a unique role or role/label/title (i.e. accessible name) c [landmark-unique]
Example URL: https://data.cms.gov/tools/medicare-part-d-drug-spending-dashboard
XPath / selector: .desktop
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<nav aria-label="breadcrumb" class="DatasetHero__breadcrumb desktop">

Description

Landmarks should have a unique role or role/label/title (i.e. accessible name) c. Detected by axe-core rule landmark-unique on 18 of 2777 scanned pages (18 instances).

Steps to reproduce

Open https://data.cms.gov/tools/medicare-part-d-drug-spending-dashboard.
Locate the element: .desktop
Confirm the axe-core finding for rule landmark-unique.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: When a landmark role/type repeats (e.g. two <nav>s), give each a distinct accessible name with aria-label or aria-labelledby (e.g. "Primary" and "Footer" navigation) so screen-reader users can tell them apart.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/landmark-unique?application=axeAPI

Triage status Notes

Moderate alfa sia-r78 Undetermined Table header has scope (WCAG criterion undetermined) 11/2777 pages · 39 instances Likely template

Bug ID: VS-8c71126a
Pattern ID: VS-2cd767ca
Combined ID: VS-8c71126a (pattern VS-2cd767ca) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: Siteimprove Alfa — Table header has scope [sia-r78]
Example URL: https://data.cms.gov/provider-data/topics/hospitals/timely-effective-care
XPath / selector: <h2 id="hospital-harm">
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

Table header has scope. Detected by Siteimprove Alfa rule sia-r78 on 11 of 2777 scanned pages (39 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/topics/hospitals/timely-effective-care.
Locate the element: <h2 id="hospital-harm">
Confirm the Siteimprove Alfa finding for rule sia-r78.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r78

Triage status Notes

Moderate alfa sia-r90 WCAG 2.0 A Component with same name serves same purpose (WCAG 4.1.2) 6/2777 pages · 10 instances

Bug ID: VS-e30e1854
Pattern ID: VS-a2a3dffb
Combined ID: VS-e30e1854 (pattern VS-a2a3dffb) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: Siteimprove Alfa — Component with same name serves same purpose [sia-r90]
Example URL: https://data.cms.gov/provider-summary-by-type-of-service
XPath / selector: <div aria-selected="true" aria-label="slide" role="option" class="slide___3-Nqo slideHorizontal___1NzNV carousel__slide carousel__slide--visible MoreTopicCarousel__slide">
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

Component with same name serves same purpose. Detected by Siteimprove Alfa rule sia-r90 on 6 of 2777 scanned pages (10 instances).

Steps to reproduce

Open https://data.cms.gov/provider-summary-by-type-of-service.
Locate the element: <div aria-selected="true" aria-label="slide" role="option" class="slide___3-Nqo slideHorizontal___1NzNV carousel__slide carousel__slide--visible MoreTopicCarousel__slide">
Confirm the Siteimprove Alfa finding for rule sia-r90 against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r90

Triage status Notes

Moderate alfa sia-r2 WCAG 2.0 A Image has accessible name (WCAG 1.1.1) 5/2777 pages · 14 instances

Bug ID: VS-207cb39a
Pattern ID: VS-a24eaa8c
Combined ID: VS-207cb39a (pattern VS-a24eaa8c) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.1.1 Non-text Content (Level A, WCAG 2.0)
Rule: Siteimprove Alfa — Image has accessible name [sia-r2]
Example URL: https://data.cms.gov/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug
XPath / selector: <canvas role="img" height="500" width="768" style="display: block; box-sizing: border-box; height: 500px; width: 768px;">
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

Image has accessible name. Detected by Siteimprove Alfa rule sia-r2 on 5 of 2777 scanned pages (14 instances).

Steps to reproduce

Open https://data.cms.gov/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug.
Locate the element: <canvas role="img" height="500" width="768" style="display: block; box-sizing: border-box; height: 500px; width: 768px;">
Confirm the Siteimprove Alfa finding for rule sia-r2 against WCAG 1.1.1 Non-text Content.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give every <img> an accessible name (alt text), or alt="" if purely decorative.

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r2

Triage status Notes

Minor axe empty-heading Best Practice Headings should not be empty (WCAG criterion undetermined) 5/2777 pages · 5 instances

Bug ID: VS-7409bf80
Pattern ID: VS-0066c67d
Combined ID: VS-7409bf80 (pattern VS-0066c67d) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Headings should not be empty [empty-heading]
Example URL: https://data.cms.gov/provider-data/topics/hospitals/timely-effective-care
XPath / selector: h2:nth-child(27)
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<h2 id="hospital-harm"><span>&nbsp;</span></h2>

Description

Headings should not be empty. Detected by axe-core rule empty-heading on 5 of 2777 scanned pages (5 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/topics/hospitals/timely-effective-care.
Locate the element: h2:nth-child(27)
Confirm the axe-core finding for rule empty-heading.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Remove empty headings or give them text. Don't use heading tags for spacing.

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/empty-heading?application=axeAPI

Triage status Notes

Minor axe empty-table-header Best Practice Table header text should not be empty (WCAG criterion undetermined) 4/2777 pages · 9 instances

Bug ID: VS-7fb0a240
Pattern ID: VS-d69fc059
Combined ID: VS-7fb0a240 (pattern VS-d69fc059) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Best Practice
Obligation: advisory
Handling: review
WCAG SC: Best Practice — not a WCAG requirement
Rule: axe-core — Table header text should not be empty [empty-table-header]
Example URL: https://data.cms.gov/resources/2018-value-modifier-performance-year-2016-methodology
XPath / selector: .ArticleSection__component-container:nth-child(5) > .DynamicTable > .container > .row > .offset-lg-3.col > .DynamicTable__inner > .DynamicTable__table-wrapper > .DynamicTable__table > thead > tr > .default-header:nth-child(1)
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

HTML snippet — use this to validate the finding without re-running the tool

<th class="CellRenderer__cell default-header" style="width: 114px;"><div id="RichTextField-a8abd350-055f-4ec9-8fc7-e1c43b1461d5" class="RichTextField"> </div></th>

Description

Table header text should not be empty. Detected by axe-core rule empty-table-header on 4 of 2777 scanned pages (9 instances).

Steps to reproduce

Open https://data.cms.gov/resources/2018-value-modifier-performance-year-2016-methodology.
Locate the element: .ArticleSection__component-container:nth-child(5) > .DynamicTable > .container > .row > .offset-lg-3.col > .DynamicTable__inner > .DynamicTable__table-wrapper > .DynamicTable__table > thead > tr > .default-header:nth-child(1)
Confirm the axe-core finding for rule empty-table-header.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

Testing environment

Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/empty-table-header?application=axeAPI

Triage status Notes

Moderate alfa sia-r57 Undetermined Scrolling content can be accessed by keyboard (WCAG criterion undetermined) 3/2777 pages · 97286 instances

Bug ID: VS-3afdf6f4
Pattern ID: VS-c18be945
Combined ID: VS-3afdf6f4 (pattern VS-c18be945) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: Siteimprove Alfa — Scrolling content can be accessed by keyboard [sia-r57]
Example URL: https://data.cms.gov/tools/mapping-medicare-disparities-by-population
XPath / selector: text: "Population View"
History: first seen 2026-W24, last seen 2026-W31 (8 wk)

Description

Scrolling content can be accessed by keyboard. Detected by Siteimprove Alfa rule sia-r57 on 3 of 2777 scanned pages (97286 instances).

Steps to reproduce

Open https://data.cms.gov/tools/mapping-medicare-disparities-by-population.
Locate the element: text: "Population View"
Confirm the Siteimprove Alfa finding for rule sia-r57.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r57

Triage status Notes

Moderate alfa sia-r64 WCAG 2.0 A Element has required owned roles (WCAG 1.3.1) 3/2777 pages · 3 instances

Bug ID: VS-b5a62c6b
Pattern ID: VS-3c632d31
Combined ID: VS-b5a62c6b (pattern VS-3c632d31) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.3.1 Info and Relationships (Level A, WCAG 2.0)
Rule: Siteimprove Alfa — Element has required owned roles [sia-r64]
Example URL: https://data.cms.gov/provider-data/topics/hospitals/timely-effective-care
XPath / selector: <h2 id="hospital-harm">
History: first seen 2026-W24, last seen 2026-W31 (3 wk)

Description

Element has required owned roles. Detected by Siteimprove Alfa rule sia-r64 on 3 of 2777 scanned pages (3 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/topics/hospitals/timely-effective-care.
Locate the element: <h2 id="hospital-harm">
Confirm the Siteimprove Alfa finding for rule sia-r64 against WCAG 1.3.1 Info and Relationships.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r64

Triage status Notes

Moderate deprecated-html presentational-attr Undetermined Presentational attribute (use CSS) (WCAG criterion undetermined) 2/2777 pages · 135 instances Likely content

Bug ID: VS-a0f51813
Pattern ID: VS-04a9d28c
Combined ID: VS-a0f51813 (pattern VS-04a9d28c) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: deprecated-html — Presentational attribute (use CSS) [presentational-attr]
Example URL: https://data.cms.gov/provider-data/topics/hospitals/overall-hospital-quality-star-rating
XPath / selector: td
History: first seen 2026-W24, last seen 2026-W31 (7 wk)

HTML snippet — use this to validate the finding without re-running the tool

<td valign="top"><span>204 (6.4%)</span></td>

Description

Presentational attribute (use CSS). Detected by deprecated-html rule presentational-attr on 2 of 2777 scanned pages (135 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/topics/hospitals/overall-hospital-quality-star-rating.
Locate the element: td
Confirm the deprecated-html finding for rule presentational-attr.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

Testing environment

Automated: deprecated-html, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

Not captured by automated scan — requires manual testing.

Triage status Notes

Moderate alfa sia-r14 WCAG 2.1 A Accessible name of link or button matches visible label (WCAG 2.5.3) 1/2777 pages · 14 instances Likely content

Bug ID: VS-db688ef0
Pattern ID: VS-f7dba940
Combined ID: VS-db688ef0 (pattern VS-f7dba940) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.1 A
Obligation: required
Handling: review
WCAG SC: 2.5.3 Label in Name (Level A, WCAG 2.1)
Rule: Siteimprove Alfa — Accessible name of link or button matches visible label [sia-r14]
Example URL: https://data.cms.gov/tools
XPath / selector: <a role="button" tabindex="0" href="/tools/medicare-inpatient-hospital-look-up-tool" title="">
History: first seen 2026-W24, last seen 2026-W31 (7 wk)

Description

Accessible name of link or button matches visible label. Detected by Siteimprove Alfa rule sia-r14 on 1 of 2777 scanned pages (14 instances).

Steps to reproduce

Open https://data.cms.gov/tools.
Locate the element: <a role="button" tabindex="0" href="/tools/medicare-inpatient-hospital-look-up-tool" title="">
Confirm the Siteimprove Alfa finding for rule sia-r14 against WCAG 2.5.3 Label in Name.

Impact

Affects Without vision (1.0%), Without speech (0.5%).

Without vision — 1.0% of population
Without speech — 0.5% of population

Affected pages

/tools

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r14

Triage status Notes

Moderate alfa sia-r12 WCAG 2.0 A Button has accessible name (WCAG 4.1.2) 1/2777 pages · 1 instances · possible duplicate Likely content

Bug ID: VS-d42071df
Pattern ID: VS-29f9f921
Combined ID: VS-d42071df (pattern VS-29f9f921) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 4.1.2 Name, Role, Value (Level A, WCAG 2.0)
Rule: Siteimprove Alfa — Button has accessible name [sia-r12]
Example URL: https://data.cms.gov/provider-data/birthing-friendly-hospitals-and-health-systems
XPath / selector: <div class="p-dropdown-trigger" role="button" aria-haspopup="listbox" aria-expanded="false">
History: first seen 2026-W27, last seen 2026-W31 (4 wk)
Possible duplicate: Same WCAG SC covered by axe report VS-e71d7143 (pattern VS-5c82bd60). If axe and this engine flag the same element, the axe report takes precedence — mark this as duplicate in JIRA.

Description

Button has accessible name. Detected by Siteimprove Alfa rule sia-r12 on 1 of 2777 scanned pages (1 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/birthing-friendly-hospitals-and-health-systems.
Locate the element: <div class="p-dropdown-trigger" role="button" aria-haspopup="listbox" aria-expanded="false">
Confirm the Siteimprove Alfa finding for rule sia-r12 against WCAG 4.1.2 Name, Role, Value.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited manipulation/strength (13.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited manipulation/strength — 13.0% of population

Affected pages

/provider-data/birthing-friendly-hospitals-and-health-systems

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

How to fix: Give the button an accessible name via text, aria-label, or aria-labelledby.

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r12

Triage status Notes

Moderate alfa sia-r46 WCAG 2.0 A Element has required aria-owns (WCAG 1.3.1) 1/2777 pages · 1 instances · possible duplicate Likely content

Bug ID: VS-e1169a36
Pattern ID: VS-4408605e
Combined ID: VS-e1169a36 (pattern VS-4408605e) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: WCAG 2.0 A
Obligation: required
Handling: review
WCAG SC: 1.3.1 Info and Relationships (Level A, WCAG 2.0)
Rule: Siteimprove Alfa — Element has required aria-owns [sia-r46]
Example URL: https://data.cms.gov/provider-data/dataset/46dc-a66c
XPath / selector: <th title="collection_type" class="ds-u-border-y--2 ds-u-padding--2 ds-u-border--dark ds-u-font-weight--bold" aria-sort="none" style="width: 150px;">
History: first seen 2026-W27, last seen 2026-W31 (4 wk)
Possible duplicate: Same WCAG SC covered by axe report VS-69190b96 (pattern VS-a0bdbdf6). If axe and this engine flag the same element, the axe report takes precedence — mark this as duplicate in JIRA.

Description

Element has required aria-owns. Detected by Siteimprove Alfa rule sia-r46 on 1 of 2777 scanned pages (1 instances).

Steps to reproduce

Open https://data.cms.gov/provider-data/dataset/46dc-a66c.
Locate the element: <th title="collection_type" class="ds-u-border-y--2 ds-u-padding--2 ds-u-border--dark ds-u-font-weight--bold" aria-sort="none" style="width: 150px;">
Confirm the Siteimprove Alfa finding for rule sia-r46 against WCAG 1.3.1 Info and Relationships.

Impact

Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%).

Without vision — 1.0% of population
Limited vision — 2.4% of population
Limited cognitive, language, or learning ability — 11.0% of population

Affected pages

/provider-data/dataset/46dc-a66c

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r46

Triage status Notes

Moderate alfa sia-r61 Undetermined Form field label is visible (WCAG criterion undetermined) 1/2777 pages · 1 instances Likely content

Bug ID: VS-1ac5f2bd
Pattern ID: VS-7118fead
Combined ID: VS-1ac5f2bd (pattern VS-7118fead) — use this format in JIRA/spreadsheets to filter by instance or pattern
WCAG category: Undetermined
Obligation: unmapped
Handling: review
WCAG SC: undetermined
Rule: Siteimprove Alfa — Form field label is visible [sia-r61]
Example URL: https://data.cms.gov/browse-data-categories
XPath / selector: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
History: first seen 2026-W24, last seen 2026-W31 (6 wk)

Description

Form field label is visible. Detected by Siteimprove Alfa rule sia-r61 on 1 of 2777 scanned pages (1 instances).

Steps to reproduce

Open https://data.cms.gov/browse-data-categories.
Locate the element: {"type":"document","children":[{"type":"type","name":"html","publicId":null,"sys
Confirm the Siteimprove Alfa finding for rule sia-r61.

Impact

Not captured by automated scan — requires manual testing.

Affected pages

/browse-data-categories

Testing environment

Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.

Suggested fix

See remediation guidance: https://alfa.siteimprove.com/rules/sia-r61

Triage status Notes

Deque axe-core findings

Rule-level axe-core summary (17 rule type(s))

Each failing rule links out to the axe-core documentation. For full element-level detail including HTML snippets and XPaths, see the bug reports above.

axe-core rules failing in 2026-W31, by pages affected
Rule	Impact	Pages affected	Instances	Example pages	All affected
Banner landmark should not be contained in another landmark [landmark-banner-is-top-level]	moderate	1376	1376	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /resources/mcbs-summary-tables-glossary /medicare-current-beneficiary-survey-mcbs/income-and-asset-ownership/data	all 1376 pages (CSV)
Scrollable region must have keyboard access [scrollable-region-focusable]	serious	613	613	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /medicare-current-beneficiary-survey-mcbs/income-and-asset-ownership/data /provider-characteristics/hospitals-and-other-facilities/skilled-nursing-facility-change-of-ownership/data/q4-2024	all 613 pages (CSV)
Heading levels should only increase by one [heading-order]	moderate	305	374	/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs /provider-characteristics/hospitals-and-other-facilities/hospital-enrollments/api-docs /summary-statistics-on-use-and-payments/medicare-medicaid-service-type-reports/medicare-telehealth-trends/api-docs	all 305 pages (CSV)
Select element must have an accessible name [select-name]	critical	127	127	/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs /provider-characteristics/hospitals-and-other-facilities/hospital-enrollments/api-docs /summary-statistics-on-use-and-payments/medicare-medicaid-service-type-reports/medicare-telehealth-trends/api-docs	all 127 pages (CSV)
Landmarks should have a unique role or role/label/title (i.e. accessible name) combination [landmark-unique]	moderate	18	18	/tools/medicare-part-d-drug-spending-dashboard /tools/provider-opt-out-affidavits-look-up-tool /tools/medicaid-managed-care-dashboard	all 18 pages (CSV)
Elements must meet minimum color contrast ratio thresholds [color-contrast]	serious	13	140	/provider-data/datasets /provider-data/datasets /provider-data/datasets	all 13 pages (CSV)
Links must be distinguishable without relying on color [link-in-text-block]	serious	11	62	/resources/2018-value-modifier-performance-year-2016-methodology /resources/independent-dispute-resolution-methodology /summary-statistics-on-use-and-payments/physiciansupplier-procedure-summary	all 11 pages (CSV)
<li> elements must be contained in a <ul> or <ol> [listitem]	serious	10	43	/provider-data/topics/doctors-clinicians /provider-data/topics/long-term-care-hospitals /provider-data/topics/physician-office-visit-costs	all 10 pages (CSV)
Form elements must have labels [label]	critical	8	14	/tools/medicare-part-d-prescriber-look-up-tool /tools/provider-opt-out-affidavits-look-up-tool /tools/market-saturation-utilization-state-county-mapping-tool	all 8 pages (CSV)
Form elements should have a visible label [label-title-only]	serious	7	11	/tools/medicare-part-d-prescriber-look-up-tool /tools/provider-opt-out-affidavits-look-up-tool /tools/market-saturation-utilization-state-county-mapping-tool	all 7 pages (CSV)
[role="img"] elements must have alternative text [role-img-alt]	serious	5	14	/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug / /beta/provider-characteristics/medicare-provider-supplier-enrollment/medicare-provider-and-supplier-taxonomy-crosswalk	all 5 pages (CSV)
Headings should not be empty [empty-heading]	minor	5	5	/provider-data/topics/hospitals/timely-effective-care /provider-data/dataset/qip_ich_cahps /provider-data/dataset/fche	all 5 pages (CSV)
Table header text should not be empty [empty-table-header]	minor	4	9	/resources/2018-value-modifier-performance-year-2016-methodology /provider-data/topics/nursing-homes/quality-measures /provider-data/topics/home-health-services/measuring-agency-performance	all 4 pages (CSV)
<svg> elements with an img role must have alternative text [svg-img-alt]	serious	1	10	/provider-data	all 1 pages (CSV)
Elements must only use permitted ARIA attributes [aria-prohibited-attr]	serious	1	1	/medicare-shared-savings-program/accountable-care-organizations	all 1 pages (CSV)
<ul> and <ol> must only directly contain <li>, <script> or <template> elements [list]	serious	1	1	/provider-data/datasets	all 1 pages (CSV)
ARIA commands must have an accessible name [aria-command-name]	serious	1	1	/provider-data/birthing-friendly-hospitals-and-health-systems	all 1 pages (CSV)

Siteimprove Alfa findings

Rule-level Alfa summary (22 rule type(s))

Rule-level summary from Siteimprove Alfa (W3C ACT-based). Findings that overlap with axe-core on the same WCAG success criterion are noted as possible duplicates in the bug reports above.

Alfa rules failing in 2026-W31, by pages affected
Rule	Impact	Pages affected	Instances	Example pages	All affected
Text has minimum contrast ratio of 4.5:1 [sia-r73]	n/a	1172	17736	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs /provider-data/dataset/medrec	all 1172 pages (CSV)
Target size is at least 44×44 CSS pixels (Enhanced) [sia-r111]	n/a	1150	27656	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs /provider-data/dataset/medrec	all 1150 pages (CSV)
Text has enhanced contrast [sia-r66]	n/a	699	20717	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs /provider-characteristics/hospitals-and-other-facilities/skilled-nursing-facility-change-of-ownership/data/q4-2024	all 699 pages (CSV)
First focusable element is link to main content [sia-r87]	n/a	699	699	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs /provider-characteristics/hospitals-and-other-facilities/skilled-nursing-facility-change-of-ownership/data/q4-2024	all 699 pages (CSV)
Text has sufficient color contrast (Enhanced) [sia-r69]	n/a	674	8322	/provider-characteristics/hospitals-and-other-facilities/hospice-all-owners/data/q4-2025 /provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs /provider-characteristics/hospitals-and-other-facilities/skilled-nursing-facility-change-of-ownership/data/q4-2024	all 674 pages (CSV)
aria-hidden element does not contain focusable elements [sia-r17]	n/a	370	1801	/provider-data/dataset/medrec /provider-data/dataset/6jpm-sxkc /provider-characteristics/medicare-provider-supplier-enrollment/opt-out-affidavits	all 370 pages (CSV)
aria attribute is permitted for element role [sia-r18]	n/a	205	853	/resources/public-reporting-of-missing-digital-contact-information-data-dictionary /resources/number-of-accountable-care-organization-assigned-beneficiaries-by-county-data-dictionary-2023 /provider-summary-by-type-of-service/medicare-inpatient-hospitals/medicare-inpatient-hospitals-by-provider	all 205 pages (CSV)
Headings are structured hierarchically [sia-r53]	n/a	153	190	/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs /provider-summary-by-type-of-service/medicare-outpatient-hospitals/medicare-outpatient-hospitals-by-provider-and-service/api-docs /cms-innovation-center-programs/accountable-care-models/next-generation-accountable-care-organization-model-data/api-docs	all 153 pages (CSV)
Form field has accessible name [sia-r8]	n/a	66	69	/provider-summary-by-type-of-service/medicare-physician-other-practitioners/medicare-physician-other-practitioners-by-provider/api-docs /provider-summary-by-type-of-service/medicare-outpatient-hospitals/medicare-outpatient-hospitals-by-provider-and-service/api-docs /cms-innovation-center-programs/accountable-care-models/next-generation-accountable-care-organization-model-data/api-docs	all 66 pages (CSV)
Link is distinguishable without relying on color [sia-r74]	n/a	28	28	/tools/medicare-part-d-drug-spending-dashboard /tools/provider-opt-out-affidavits-look-up-tool /tools/medicaid-managed-care-dashboard	all 28 pages (CSV)
Element with orientation is not locked [sia-r59]	n/a	22	22	/provider-characteristics/hospitals-and-other-facilities/provider-of-services-file-quality-improvement-and-evaluation-system/data/q1-2026 /provider-characteristics/medicare-provider-supplier-enrollment/pending-initial-logging-and-tracking-physicians/data /provider-characteristics/medicare-provider-supplier-enrollment/pending-initial-logging-and-tracking-non-physicians/data/june-26-2026	all 22 pages (CSV)
Presentational children of an element are not focusable [sia-r68]	n/a	18	18	/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-part-b-spending-by-drug /cms-innovation-center-programs/cms-innovation-models-overview/innovation-center-model-participants /summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicaid-spending-by-drug	all 18 pages (CSV)
Target size is at least 24×24 CSS pixels or has spacing (Minimum) [sia-r113]	n/a	17	48	/resources/medicare-part-b-spending-by-drug-data-dictionary /resources/opt-out-affidavits-methodology /resources/market-saturation-utilization-state-county-methodology	all 17 pages (CSV)
Table header has scope [sia-r78]	n/a	11	39	/provider-data/topics/hospitals/timely-effective-care /provider-characteristics/medicare-provider-supplier-enrollment/home-infusion-therapy-providers/data/may-5-2026 /provider-summary-by-type-of-service	all 11 pages (CSV)
Component with same name serves same purpose [sia-r90]	n/a	6	10	/provider-summary-by-type-of-service /summary-statistics-on-use-and-payments /summary-statistics-on-provider-enrollment	all 6 pages (CSV)
Image has accessible name [sia-r2]	n/a	5	14	/summary-statistics-on-use-and-payments/medicare-medicaid-spending-by-drug/medicare-quarterly-part-d-spending-by-drug / /beta/provider-characteristics/medicare-provider-supplier-enrollment/medicare-provider-and-supplier-taxonomy-crosswalk	all 5 pages (CSV)
Scrolling content can be accessed by keyboard [sia-r57]	n/a	3	97286	/tools/mapping-medicare-disparities-by-population /tools/mapping-disparities-by-social-determinants-of-health /tools/mapping-medicare-disparities-by-hospital	all 3 pages (CSV)
Element has required owned roles [sia-r64]	n/a	3	3	/provider-data/topics/hospitals/timely-effective-care /provider-data/dataset/qip_ich_cahps /provider-compliance/independent-dispute-resolution	all 3 pages (CSV)
Accessible name of link or button matches visible label [sia-r14]	n/a	1	14	/tools	all 1 pages (CSV)
Element has required aria-owns [sia-r46]	n/a	1	1	/provider-data/dataset/46dc-a66c	all 1 pages (CSV)
Button has accessible name [sia-r12]	n/a	1	1	/provider-data/birthing-friendly-hospitals-and-health-systems	all 1 pages (CSV)
Form field label is visible [sia-r61]	n/a	1	1	/browse-data-categories	all 1 pages (CSV)

Unique accessibility issues (axe + Alfa consolidated)

axe and Alfa both implement W3C ACT rules, so the same issue is often caught by both. These are deduplicated by ACT rule and page, so a shared finding counts once (7811 raw engine findings → 7736 unique).

Unique issues (rule × page): 7736
Caught by both engines: 75 highest confidence
axe only: 2431
Alfa only: 5230

5 rule type(s) caught by both engines — highest confidence

Two independent ACT-rule implementations (Deque axe-core and Siteimprove Alfa) flagged the same issue on the same pages. Agreement between separate engines is strong evidence the barrier is real, not a single-tool false positive — the best place to start.

Rules flagged by both axe-core and Alfa in 2026-W31, by pages affected.
Issue	Pages	Rule references
Elements must only use permitted ARIA attributes	206	axe aria-prohibited-attr · Alfa sia-r18 · ACT 5c01ea
Select element must have an accessible name	135	axe select-name · Alfa sia-r8 · ACT e086e5
Headings should not be empty	5	axe empty-heading · Alfa sia-r64 · ACT ffd0e9
[role="img"] elements must have alternative text	5	axe role-img-alt · Alfa sia-r2 · ACT 23a2a8
ARIA commands must have an accessible name	1	axe aria-command-name · Alfa sia-r12 · ACT 97a4e1