ICD-10-CM category
M16 Coxarthrosis [arthrosis of hip]
M16 is a category, not a billable code. Report one of the 15 complete codes below.
Codes in M16
- M16.0Bilateral primary osteoarthritis of hip
- M16.10Unilateral primary osteoarthritis, unspecified hip
- M16.11Unilateral primary osteoarthritis, right hip
- M16.12Unilateral primary osteoarthritis, left hip
- M16.2Bilateral osteoarthritis resulting from hip dysplasia
- M16.30Unilateral osteoarthritis resulting from hip dysplasia, unspecified hip
- M16.31Unilateral osteoarthritis resulting from hip dysplasia, right hip
- M16.32Unilateral osteoarthritis resulting from hip dysplasia, left hip
- M16.4Bilateral post-traumatic osteoarthritis of hip
- M16.50Unilateral post-traumatic osteoarthritis, unspecified hip
- M16.51Unilateral post-traumatic osteoarthritis, right hip
- M16.52Unilateral post-traumatic osteoarthritis, left hip
- M16.6Other bilateral secondary osteoarthritis of hip
- M16.7Other unilateral secondary osteoarthritis of hip
- M16.9Osteoarthritis of hip, unspecified
Outside the US? M16 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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