M33

Non-billable

Dermatopolymyositis

M33 is the ICD-10-CM code for Dermatopolymyositis. It is a non-billable category code — use a more specific child code such as M33.0 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Subcodes
4
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code M33?
M33 is the ICD-10-CM code for "Dermatopolymyositis". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M33 a billable code?
No — M33 is a non-billable header code. Use a more specific child code (such as M33.0) for billing.
What are the subcodes of M33?
M33 has 4 more specific child codes, including M33.0, M33.1, M33.2.

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

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