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	✓
M16.1	Unilateral primary osteoarthritis of hip	—
M16.2	Bilateral osteoarthritis resulting from hip dysplasia	✓
M16.3	Unilateral osteoarthritis resulting from hip dysplasia	—
M16.4	Bilateral post-traumatic osteoarthritis of hip	✓
M16.5	Unilateral post-traumatic osteoarthritis of hip	—
M16.6	Other bilateral secondary osteoarthritis of hip	✓
M16.7	Other unilateral secondary osteoarthritis of hip	✓
M16.9	Osteoarthritis of hip, unspecified	✓
M16.10	Unilateral primary osteoarthritis, unspecified hip	✓
M16.11	Unilateral primary osteoarthritis, right hip	✓
M16.12	Unilateral primary osteoarthritis, left hip	✓
M16.30	Unilateral osteoarthritis resulting from hip dysplasia, unspecified hip	✓
M16.31	Unilateral osteoarthritis resulting from hip dysplasia, right hip	✓
M16.32	Unilateral osteoarthritis resulting from hip dysplasia, left hip	✓
M16.50	Unilateral post-traumatic osteoarthritis, unspecified hip	✓
M16.51	Unilateral post-traumatic osteoarthritis, right hip	✓
M16.52	Unilateral post-traumatic osteoarthritis, left hip	✓

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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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