ICD-10 Code for Forestier's Disease
The default ICD-10-CM 2027 code for forestier's disease (rhizomelic pseudopolyarthritis) is M35.3 – Polymyalgia rheumatica. More specific codes depend on the details documented, as listed in the official index (1 codes, 1 billable).
- Main code
M35.3– Polymyalgia rheumatica- Billable
- Yes
Index entries for Forestier's disease
- meaning ankylosing hyperostosis – see Hyperostosis, ankylosing
How to choose the right code
Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.
Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.