M17.30 is the authoritative medical code for Unilateral post-traumatic osteoarthritis, unspecified knee. This classification is used in medical billing and clinical recording to specify the clinical criteria for unilateral post-traumatic osteoarthritis, unspecified knee (ICD-10-CM M17.30), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Unilateral post-traumatic osteoarthritis, unspecified knee is a billable ICD-10-CM diagnosis code M17.30. Excludes2 (not included here): osteoarthritis of spine M47.-.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for M17.30 in the official ICD-10-CM tabular list.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- osteoarthritis of spine M47.-
Frequently Asked Questions (FAQ) & Clinical Guidance
Can M17.30 be reported alongside related conditions?
Per Excludes2 instructions, M17.30 and the following may both be reported when both are present: osteoarthritis of spine (M47.-).
Codes in This Family (13)
Official ICD-10-CM classifications in the same code family as M17.30, with their registry titles.
- M17 — Osteoarthritis of knee
- M17.0 — Bilateral primary osteoarthritis of knee
- M17.1 — Unilateral primary osteoarthritis of knee
- M17.10 — Unilateral primary osteoarthritis, unspecified knee
- M17.11 — Unilateral primary osteoarthritis, right knee
- M17.12 — Unilateral primary osteoarthritis, left knee
- M17.2 — Bilateral post-traumatic osteoarthritis of knee
- M17.3 — Unilateral post-traumatic osteoarthritis of knee
- M17.31 — Unilateral post-traumatic osteoarthritis, right knee
- M17.32 — Unilateral post-traumatic osteoarthritis, left knee
- M17.4 — Other bilateral secondary osteoarthritis of knee
- M17.5 — Other unilateral secondary osteoarthritis of knee
- M17.9 — Osteoarthritis of knee, unspecified
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code M16.30
Unilateral osteoarthritis resulting from hip dysplasia, unspecified hip
ICD Code M18.30
Unilateral post-traumatic osteoarthritis of first carpometacarpal joint, unspecified hand