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M17.0 — Bilateral primary osteoarthritis of knee
M17.0
What this code means
Primary osteoarthritis of both knees: cartilage wear in the knee joints causing pain, stiffness and reduced mobility.
Also called: bilateral knee osteoarthritis, knee oa both.
When this code is used
Used for bilateral primary osteoarthritis of knee.
Where it sits in ICD-10-CM
Code M17.0 belongs to Chapter 13: Diseases of the musculoskeletal system and connective tissue, which covers codes M00–M99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Learn more about this condition
Related symptoms
Related anatomy
Frequently asked questions
What is ICD-10-CM code M17.0?
M17.0 is the ICD-10-CM diagnosis code for “Bilateral primary osteoarthritis of knee”. Primary osteoarthritis of both knees: cartilage wear in the knee joints causing pain, stiffness and reduced mobility.
When is code M17.0 used?
Used for bilateral primary osteoarthritis of knee. It belongs to Chapter 13 of ICD-10-CM (Diseases of the musculoskeletal system and connective tissue).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.