M22.8X9: Other disorders of patella, unspecified knee
M22.8X9 is the billable ICD-10-CM diagnosis code for Other disorders of patella, unspecified knee. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code M22.8X9?
M22.8X9 is the ICD-10-CM diagnosis code for Other disorders of patella, unspecified knee. It belongs to category M22 (Disorder of patella).
Is M22.8X9 a billable code?
Yes. M22.8X9 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does M22.8X9 belong to?
M22.8X9 is part of ICD-10-CM category M22 — Disorder of patella, which has 42 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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