M33: Dermatopolymyositis
Codes under M33 (Dermatopolymyositis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| M33.0 | Juvenile dermatomyositis | — |
| M33.0 | Juvenile dermatomyositis | — |
| M33.00 | Juvenile dermatomyositis, organ involvement unspecified | ✓ |
| M33.00 | Juvenile dermatomyositis, organ involvement unspecified | ✓ |
| M33.01 | Juvenile dermatomyositis with respiratory involvement | ✓ |
| M33.01 | Juvenile dermatomyositis with respiratory involvement | ✓ |
| M33.1 | Other dermatomyositis | — |
| M33.1 | Other dermatomyositis | — |
| M33.02 | Juvenile dermatomyositis with myopathy | ✓ |
| M33.02 | Juvenile dermatomyositis with myopathy | ✓ |
| M33.2 | Polymyositis | — |
| M33.2 | Polymyositis | — |
| M33.03 | Juvenile dermatomyositis without myopathy | ✓ |
| M33.03 | Juvenile dermatomyositis without myopathy | ✓ |
| M33.09 | Juvenile dermatomyositis with other organ involvement | ✓ |
| M33.09 | Juvenile dermatomyositis with other organ involvement | ✓ |
| M33.9 | Dermatopolymyositis, unspecified | — |
| M33.9 | Dermatopolymyositis, unspecified | — |
| M33.10 | Other dermatomyositis, organ involvement unspecified | ✓ |
| M33.10 | Other dermatomyositis, organ involvement unspecified | ✓ |
| M33.11 | Other dermatomyositis with respiratory involvement | ✓ |
| M33.11 | Other dermatomyositis with respiratory involvement | ✓ |
| M33.12 | Other dermatomyositis with myopathy | ✓ |
| M33.12 | Other dermatomyositis with myopathy | ✓ |
| M33.13 | Other dermatomyositis without myopathy | ✓ |
| M33.13 | Other dermatomyositis without myopathy | ✓ |
| M33.19 | Other dermatomyositis with other organ involvement | ✓ |
| M33.19 | Other dermatomyositis with other organ involvement | ✓ |
| M33.20 | Polymyositis, organ involvement unspecified | ✓ |
| M33.20 | Polymyositis, organ involvement unspecified | ✓ |
| M33.21 | Polymyositis with respiratory involvement | ✓ |
| M33.21 | Polymyositis with respiratory involvement | ✓ |
| M33.22 | Polymyositis with myopathy | ✓ |
| M33.22 | Polymyositis with myopathy | ✓ |
| M33.29 | Polymyositis with other organ involvement | ✓ |
| M33.29 | Polymyositis with other organ involvement | ✓ |
| M33.90 | Dermatopolymyositis, unspecified, organ involvement unspecified | ✓ |
| M33.90 | Dermatopolymyositis, unspecified, organ involvement unspecified | ✓ |
| M33.91 | Dermatopolymyositis, unspecified with respiratory involvement | ✓ |
| M33.91 | Dermatopolymyositis, unspecified with respiratory involvement | ✓ |
| M33.92 | Dermatopolymyositis, unspecified with myopathy | ✓ |
| M33.92 | Dermatopolymyositis, unspecified with myopathy | ✓ |
| M33.93 | Dermatopolymyositis, unspecified without myopathy | ✓ |
| M33.93 | Dermatopolymyositis, unspecified without myopathy | ✓ |
| M33.99 | Dermatopolymyositis, unspecified with other organ involvement | ✓ |
| M33.99 | Dermatopolymyositis, unspecified with other organ involvement | ✓ |
Frequently asked questions
What is ICD-10-CM code M33?
M33 is an ICD-10-CM category covering Dermatopolymyositis. It contains 46 more specific diagnosis codes, 38 of which are billable.
Is M33 a billable code?
No — M33 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example M33.0 — Juvenile dermatomyositis). 38 of the 46 codes under M33 are billable.
What codes fall under M33?
M33 includes M33.0, M33.0, M33.00, M33.00, M33.01, plus 41 more. See the full list with descriptions and billable status above.
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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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