ICD-10-CM category
M17: Osteoarthritis of knee
Codes under M17 (Osteoarthritis of knee). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| M17.0 | Bilateral primary osteoarthritis of knee | ✓ |
| M17.1 | Unilateral primary osteoarthritis of knee | — |
| M17.2 | Bilateral post-traumatic osteoarthritis of knee | ✓ |
| M17.3 | Unilateral post-traumatic osteoarthritis of knee | — |
| M17.4 | Other bilateral secondary osteoarthritis of knee | ✓ |
| M17.5 | Other unilateral secondary osteoarthritis of knee | ✓ |
| M17.9 | Osteoarthritis of knee, unspecified | ✓ |
| M17.10 | Unilateral primary osteoarthritis, unspecified knee | ✓ |
| M17.11 | Unilateral primary osteoarthritis, right knee | ✓ |
| M17.12 | Unilateral primary osteoarthritis, left knee | ✓ |
| M17.30 | Unilateral post-traumatic osteoarthritis, unspecified knee | ✓ |
| M17.31 | Unilateral post-traumatic osteoarthritis, right knee | ✓ |
| M17.32 | Unilateral post-traumatic osteoarthritis, left knee | ✓ |
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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