ICD-10-CM category
M33 Dermatopolymyositis
M33 is a category, not a billable code. Report one of the 19 complete codes below.
Codes in M33
- M33.00Juvenile dermatomyositis, organ involvement unspecified
- M33.01Juvenile dermatomyositis with respiratory involvement
- M33.02Juvenile dermatomyositis with myopathy
- M33.03Juvenile dermatomyositis without myopathy
- M33.09Juvenile dermatomyositis with other organ involvement
- M33.10Other dermatomyositis, organ involvement unspecified
- M33.11Other dermatomyositis with respiratory involvement
- M33.12Other dermatomyositis with myopathy
- M33.13Other dermatomyositis without myopathy
- M33.19Other dermatomyositis with other organ involvement
- M33.20Polymyositis, organ involvement unspecified
- M33.21Polymyositis with respiratory involvement
- M33.22Polymyositis with myopathy
- M33.29Polymyositis with other organ involvement
- M33.90Dermatopolymyositis, unspecified, organ involvement unspecified
- M33.91Dermatopolymyositis, unspecified with respiratory involvement
- M33.92Dermatopolymyositis, unspecified with myopathy
- M33.93Dermatopolymyositis, unspecified without myopathy
- M33.99Dermatopolymyositis, unspecified with other organ involvement
Outside the US? M33 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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