ICD-10 Code for Osteoarthritis
The default ICD-10-CM 2027 code for osteoarthritis is M19.90 – Unspecified osteoarthritis, unspecified site. More specific codes depend on the details documented, as listed in the official index (52 codes, 29 billable).
- Main code
M19.90– Unspecified osteoarthritis, unspecified site- Billable
- Yes
Index entries for Osteoarthritis
- ankle –
M19.07-(header) - elbow –
M19.02-(header) - foot joint –
M19.07-(header) - generalized (multiple joints) –
M15.9 - hand joint –
M19.04-(header) - hip –
M16.9- bilateral –
M16.0 - due to hip dysplasia (unilateral) –
M16.3-(header)- bilateral –
M16.2
- bilateral –
- post-traumatic – see Osteoarthritis, post-traumatic, hip
- primary –
M16.1-(header)- bilateral –
M16.0
- bilateral –
- secondary – see Osteoarthritis, secondary, hip
- unilateral –
M16.1-(header)
- bilateral –
- interphalangeal
- knee –
M17.9- bilateral –
M17.0 - post-traumatic – see Osteoarthritis, post-traumatic, knee
- primary –
M17.1-(header)- bilateral –
M17.0
- bilateral –
- secondary – see Osteoarthritis, secondary, knee
- unilateral –
M17.1-(header)
- bilateral –
- post-traumatic NEC –
M19.92 - primary –
M19.91- ankle –
M19.07-(header) - elbow –
M19.02-(header) - foot joint –
M19.07-(header) - hand joint –
M19.04-(header) - hip –
M16.1-(header)- bilateral –
M16.0
- bilateral –
- knee –
M17.1-(header)- bilateral –
M17.0
- bilateral –
- multiple sites –
M15.9 - shoulder –
M19.01-(header) - specified site NEC –
M19.09 - spine – see Spondylosis
- wrist –
M19.03-(header)
- ankle –
- secondary –
M19.93 - shoulder –
M19.01-(header) - specified site NEC –
M19.09 - spine – see Spondylosis
- wrist –
M19.03-(header)- first carpometacarpal joint – see Osteoarthritis, hand joint, first carpometacarpal joint
- post-traumatic –
M19.13-(header) - primary –
M19.03-(header) - secondary –
M19.23-(header)
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.