data.cms.gov: Readability — week 2026-W40

What these mean

Words per page

Main-content word count. Median 763

Reading ease (Flesch)

0–100; higher is easier. ~60+ is plain language; below ~30 is very hard. Median 7.5

Grade level (Flesch-Kincaid)

US school grade needed to read it; aim for ~8 or lower for the public. Median 18

Scored

A reading grade is only meaningful on running prose, so we score a page only when it has enough of it. Pages that are mostly links or cards (too little text) or mostly tables and data (not prose) are left unscored — a grade there would be misleading, no matter how many words they contain. 91 of 912 scored

Heuristics for triage and trends, not authoritative linguistics. They flag pages worth a human plain-language review.

Per-page readability

Unexplained acronyms

Acronyms used without an on-page expansion (e.g. "Centers for Medicare & Medicaid Services (CMS)"), by pages affected. Download: CSV · JSON.

• HTTPSA — 539 page(s)
• MD — 435 page(s)
• CENTER — 186 page(s)
• HEALTH — 145 page(s)
• CMS — 122 page(s)
• OF — 106 page(s)
• SOUTH — 100 page(s)
• INC — 94 page(s)
• CSV — 93 page(s)
• TH — 86 page(s)
• EAST — 83 page(s)
• API — 82 page(s)
• STREET — 76 page(s)
• VALLEY — 71 page(s)
• ST — 71 page(s)

Possible misspellings

Main-content words not found in the dictionary or the project allowlist, by pages affected. Government and medical jargon may be false positives — add real terms to config/spelling-allowlist.txt. Download: CSV · JSON.

• https — 540 page(s)
• govA — 539 page(s)
• TableOverviewData — 345 page(s)
• DictionaryAPI — 328 page(s)
• DetailsArchived — 294 page(s)
• DataLast — 294 page(s)
• rowsFilter — 285 page(s)
• DatasetFilter — 285 page(s)
• DatasetAdd — 285 page(s)
• NameConditionValueColumn — 285 page(s)
• filterResetApply — 285 page(s)
• filtersManage — 285 page(s)
• ColumnsManage — 285 page(s)
• columnsActivate — 285 page(s)
• allDisplay — 285 page(s)
• rowsRows — 278 page(s)
• SearchManage — 278 page(s)
• ColumnsFilter — 278 page(s)
• ExportBasic — 278 page(s)
• FilteringAdvanced — 278 page(s)
• FilteringSelect — 278 page(s)
• columnSelect — 278 page(s)
• conditionSelect — 278 page(s)
• conditionAdd — 278 page(s)
• conditionRemove — 278 page(s)