M79.12: Myalgia of auxiliary muscles, head and neck
M79.12 is the billable ICD-10-CM diagnosis code for Myalgia of auxiliary muscles, head and neck. 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 M79.12?
M79.12 is the ICD-10-CM diagnosis code for Myalgia of auxiliary muscles, head and neck. It belongs to category M79 (Other and unspecified soft tissue disorders, not elsewhere classified).
Is M79.12 a billable code?
Yes. M79.12 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 M79.12 belong to?
M79.12 is part of ICD-10-CM category M79 — Other and unspecified soft tissue disorders, not elsewhere classified, which has 104 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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