M33.9 is the ICD-10 code for Dermatopolymyositis, unspecified. It is a four-character subcategory of M33 (Dermatopolymyositis), the most specific level in the WHO edition. It belongs to the block M30–M36 (Systemic connective tissue disorders) in Chapter XIII, Diseases of the musculoskeletal system and connective tissue.
- Code type
- Subcategory (4 characters)
- Chapter
- XIII · M00–M99
- Classification
- WHO ICD-10, 2019 version
M33.9 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
M33.9Uspesifisert dermatopolymyositt
DM339Dermatopolymyositis UNS
M33.9Määrittämätön dermato[poly]myosiitti
M33.9Dermatomyositis-Polymyositis, nicht näher bezeichnet
M33.9Dermatopolymyosite, sans précision
M33.9dermatopolymyositis, niet-gespecificeerd
Listed through more specific codes:
- 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
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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