M60.9

Billable

Myositis, unspecified

M60.9 is the ICD-10-CM code for Myositis, unspecified. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
M00-M99
Parent
M60
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

What this means — in plain language

MedlinePlus · NIH

Myositis means inflammation of the muscles that you use to move your body. An injury, infection, or autoimmune disease can cause it. Two specific kinds are polymyositis and dermatomyositis. Polymyositis causes muscle weakness, usually in the muscles closest to the trunk of your body. Dermatomyositis causes muscle weakness, plus a skin rash. Other symptoms of myositis may include: Fatigue after walking or standing…

Read more about Myositis at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code M60.9?
M60.9 is the ICD-10-CM code for "Myositis, unspecified". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M60.9 a billable code?
Yes — M60.9 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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