M16.5Header code — not billable
Unilateral post-traumatic osteoarthritis of hip
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue
- Category
- M16
- Effective date
- October 1, 2026
Related codes in category M16
M16Osteoarthritis of hipM16.0Bilateral primary osteoarthritis of hipYesM16.1Unilateral primary osteoarthritis of hipM16.10Unilateral primary osteoarthritis, unspecified hipYesM16.11Unilateral primary osteoarthritis, right hipYesM16.12Unilateral primary osteoarthritis, left hipYesM16.2Bilateral osteoarthritis resulting from hip dysplasiaYesM16.3Unilateral osteoarthritis resulting from hip dysplasiaM16.30Unilateral osteoarth resulting from hip dysplasia, unsp hipYesM16.31Unilateral osteoarth resulting from hip dysplasia, right hipYesM16.32Unilateral osteoarth resulting from hip dysplasia, left hipYesM16.4Bilateral post-traumatic osteoarthritis of hipYes
Frequently asked questions
What is ICD-10 code M16.5?
M16.5 is an ICD-10-CM diagnosis code for Unilateral post-traumatic osteoarthritis of hip.
Is M16.5 a billable code?
No. M16.5 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is M16.5 in?
M16.5 falls under Chapter 13: Diseases of the musculoskeletal system and connective tissue.
When did M16.5 become effective?
M16.5 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to M16.5?
M16.5 belongs to category M16, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.