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M17 Osteoarthritis of knee

ICD-10-CM category M17 sits in Chapter 13 (Diseases of the musculoskeletal system and connective tissue, M00-M99). It contains 11 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Subcategories

M17.1 Unilateral primary osteoarthritis of kneeM17.3 Unilateral post-traumatic osteoarthritis of knee

Billable codes in M17

CodeDescription
M17.0Bilateral primary osteoarthritis of knee
M17.10Unilateral primary osteoarthritis, unspecified knee
M17.11Unilateral primary osteoarthritis, right knee
M17.12Unilateral primary osteoarthritis, left knee
M17.2Bilateral post-traumatic osteoarthritis of knee
M17.30Unilateral post-traumatic osteoarthritis, unspecified knee
M17.31Unilateral post-traumatic osteoarthritis, right knee
M17.32Unilateral post-traumatic osteoarthritis, left knee
M17.4Other bilateral secondary osteoarthritis of knee
M17.5Other unilateral secondary osteoarthritis of knee
M17.9Osteoarthritis of knee, unspecified

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