www.cms.gov: Readability — week 2026-W39
What these mean
- Words per page
- Main-content word count.
- Reading ease (Flesch)
- 0–100; higher is easier. ~60+ is plain language; below ~30 is very hard.
- Grade level (Flesch-Kincaid)
- US school grade needed to read it; aim for ~8 or lower for the public.
- 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.
Per-page readability
Unexplained acronyms
ICD— 610 page(s)API— 591 page(s)ID— 558 page(s)PDF— 500 page(s)CPT— 440 page(s)CM— 434 page(s)UB— 424 page(s)CMS— 342 page(s)XVIII— 313 page(s)LLC— 293 page(s)HCPCS— 288 page(s)NOT— 259 page(s)PCS— 248 page(s)DO— 234 page(s)CGS— 198 page(s)
Possible misspellings
LCDs— 337 page(s)www— 238 page(s)NCDs— 234 page(s)Noridian— 223 page(s)https— 186 page(s)cms— 153 page(s)ama— 114 page(s)NCAs— 112 page(s)CALs— 110 page(s)Wellpoint— 108 page(s)Transmittals— 107 page(s)MolDX— 106 page(s)cpt— 102 page(s)procurements— 100 page(s)TAs— 98 page(s)cptOpens— 96 page(s)merchantability— 95 page(s)MCDs— 92 page(s)navbar— 87 page(s)Immunotherapy— 83 page(s)NCDsN— 82 page(s)MexicoNorth— 81 page(s)pre— 80 page(s)hhs— 79 page(s)MEDCACs— 79 page(s)