M172026
Non-billable
Osteoarthritis of knee
M17 is a non-billable ICD-10-CM category (header) code for Osteoarthritis of knee; a more specific code below it is required for claims in the FY2026 code set.
Clinical Notes
Frequently Asked Questions
Code Hierarchy
M17
Osteoarthritis of kneeBilateral primary osteoarthritis of knee
Unilateral primary osteoarthritis of knee
Bilateral post-traumatic osteoarthritis of knee
Unilateral post-traumatic osteoarthritis of knee
Other bilateral secondary osteoarthritis of knee
Other unilateral secondary osteoarthritis of knee
...knee, unspecified
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Official Guidelines
Chapter 13: Diseases of the Musculoskeletal System
Official coding guidelines for M00-M99