ICD-10 · PDGM grouping
M15 Polyosteoarthritis
All 7 codes in the M15 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
7
Can lead a claim
7
Cannot lead a claim
0
What CMS assigns to M15
All 7 codes group to Musculoskeletal Rehabilitation. None of the 7 is assigned a comorbidity subgroup. Every code can lead a claim.
Every code in M15
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| M15.0 | Primary generalized (osteo)arthritis | Can lead a claim | E | None |
| M15.1 | Heberden's nodes (with arthropathy) | Can lead a claim | E | None |
| M15.2 | Bouchard's nodes (with arthropathy) | Can lead a claim | E | None |
| M15.3 | Secondary multiple arthritis | Can lead a claim | E | None |
| M15.4 | Erosive (osteo)arthritis | Can lead a claim | E | None |
| M15.8 | Other polyosteoarthritis | Can lead a claim | E | None |
| M15.9 | Polyosteoarthritis, unspecified | Can lead a claim | E | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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