ICD-10-CM Code M17.10
Unilateral primary osteoarthritis, unspecified knee
Diagnosis information
Billable
Yes
Valid for claim submission
Chapter
M00–M99
Diseases of the musculoskeletal system
Risk adjustment
None
Not risk-adjustable (V28)
More codes in the M17 category
Other billable ICD-10-CM codes in the same category as M17.10. Coding to the highest specificity the documentation supports is what keeps a claim clean — pick the child code that most precisely matches the diagnosis.
- M17.0Bilateral primary osteoarthritis of knee
- M17.11Unilateral primary osteoarthritis, right knee
- M17.12Unilateral primary osteoarthritis, left knee
- M17.2Bilateral post-traumatic osteoarthritis of knee
- M17.30Unilateral post-traumatic osteoarthritis, unspecified knee
- M17.31Unilateral post-traumatic osteoarthritis, right knee
- M17.32Unilateral post-traumatic osteoarthritis, left knee
- M17.4Other bilateral secondary osteoarthritis of knee
- M17.5Other unilateral secondary osteoarthritis of knee
- M17.9Osteoarthritis of knee, unspecified
Documentation & coding notes
- M17.10 is a billable/specific ICD-10-CM code — it can be reported as a primary or secondary diagnosis when the documentation supports it. Code to the highest level of specificity the record allows.
- Always verify the code against the current ICD-10-CM Official Guidelines and the payer's coverage policy before submitting — coverage, medical necessity edits, and sequencing rules vary by payer.
Related M00–M99 codes
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Medical coding disclaimer
ICD-10-CM codes and descriptions shown are from the CMS FY2026 official code set and HCC mappings from the CMS-HCC V28 model (payment year 2026), shown for educational reference. Official Guidelines, payer coverage, medical-necessity edits, and sequencing rules vary. Always verify with the current ICD-10-CM Official Guidelines and the payer before submitting claims. D3rx is not responsible for coding or billing outcomes.