M33.91
BillableDermatopolymyositis, unspecified with respiratory involvement
M33.91 is the ICD-10-CM code for Dermatopolymyositis, unspecified with respiratory involvement. It is a billable, specific code valid for reimbursement.
M00-M99 Diseases of the musculoskeletal system and connective tissue
What this means — in plain language
MedlinePlus · NIHMyositis 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.
Medications indicated for this condition
FDA labelingDrugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Frequently asked questions
- What is ICD-10 code M33.91?
- M33.91 is the ICD-10-CM code for "Dermatopolymyositis, unspecified with respiratory involvement". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
- Is M33.91 a billable code?
- Yes — M33.91 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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