M16: Osteoarthritis of hip
Codes under M16 (Osteoarthritis of hip). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| M16.0 | Bilateral primary osteoarthritis of hip | ✓ |
| M16.0 | Bilateral primary osteoarthritis of hip | ✓ |
| M16.1 | Unilateral primary osteoarthritis of hip | — |
| M16.1 | Unilateral primary osteoarthritis of hip | — |
| M16.2 | Bilateral osteoarthritis resulting from hip dysplasia | ✓ |
| M16.2 | Bilateral osteoarthritis resulting from hip dysplasia | ✓ |
| M16.3 | Unilateral osteoarthritis resulting from hip dysplasia | — |
| M16.3 | Unilateral osteoarthritis resulting from hip dysplasia | — |
| M16.4 | Bilateral post-traumatic osteoarthritis of hip | ✓ |
| M16.4 | Bilateral post-traumatic osteoarthritis of hip | ✓ |
| M16.5 | Unilateral post-traumatic osteoarthritis of hip | — |
| M16.5 | Unilateral post-traumatic osteoarthritis of hip | — |
| M16.6 | Other bilateral secondary osteoarthritis of hip | ✓ |
| M16.6 | Other bilateral secondary osteoarthritis of hip | ✓ |
| M16.7 | Other unilateral secondary osteoarthritis of hip | ✓ |
| M16.7 | Other unilateral secondary osteoarthritis of hip | ✓ |
| M16.9 | Osteoarthritis of hip, unspecified | ✓ |
| M16.9 | Osteoarthritis of hip, unspecified | ✓ |
| M16.10 | Unilateral primary osteoarthritis, unspecified hip | ✓ |
| M16.10 | Unilateral primary osteoarthritis, unspecified hip | ✓ |
| M16.11 | Unilateral primary osteoarthritis, right hip | ✓ |
| M16.11 | Unilateral primary osteoarthritis, right hip | ✓ |
| M16.12 | Unilateral primary osteoarthritis, left hip | ✓ |
| M16.12 | Unilateral primary osteoarthritis, left hip | ✓ |
| M16.30 | Unilateral osteoarthritis resulting from hip dysplasia, unspecified hip | ✓ |
| M16.30 | Unilateral osteoarthritis resulting from hip dysplasia, unspecified hip | ✓ |
| M16.31 | Unilateral osteoarthritis resulting from hip dysplasia, right hip | ✓ |
| M16.31 | Unilateral osteoarthritis resulting from hip dysplasia, right hip | ✓ |
| M16.32 | Unilateral osteoarthritis resulting from hip dysplasia, left hip | ✓ |
| M16.32 | Unilateral osteoarthritis resulting from hip dysplasia, left hip | ✓ |
| M16.50 | Unilateral post-traumatic osteoarthritis, unspecified hip | ✓ |
| M16.50 | Unilateral post-traumatic osteoarthritis, unspecified hip | ✓ |
| M16.51 | Unilateral post-traumatic osteoarthritis, right hip | ✓ |
| M16.51 | Unilateral post-traumatic osteoarthritis, right hip | ✓ |
| M16.52 | Unilateral post-traumatic osteoarthritis, left hip | ✓ |
| M16.52 | Unilateral post-traumatic osteoarthritis, left hip | ✓ |
Frequently asked questions
What is ICD-10-CM code M16?
M16 is an ICD-10-CM category covering Osteoarthritis of hip. It contains 36 more specific diagnosis codes, 30 of which are billable.
Is M16 a billable code?
No — M16 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example M16.0 — Bilateral primary osteoarthritis of hip). 30 of the 36 codes under M16 are billable.
What codes fall under M16?
M16 includes M16.0, M16.0, M16.1, M16.1, M16.2, plus 31 more. See the full list with descriptions and billable status above.
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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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