M67.99: Unspecified disorder of synovium and tendon, multiple sites
M67.99 is the billable ICD-10-CM diagnosis code for Unspecified disorder of synovium and tendon, multiple sites. 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 M67.99?
M67.99 is the ICD-10-CM diagnosis code for Unspecified disorder of synovium and tendon, multiple sites. It belongs to category M67 (Other disorders of synovium and tendon).
Is M67.99 a billable code?
Yes. M67.99 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 M67.99 belong to?
M67.99 is part of ICD-10-CM category M67 — Other disorders of synovium and tendon, which has 283 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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