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Start free with EleplanJuvenile dermatomyositis
ORPHA:93672Disease
Also called Juvenile DM
What it is
An early-onset form of dermatomyositis (DM), a systemic, autoimmune inflammatory muscle disorder with vasculopathy, characterized by proximal and symmetrical muscle weakness, evocative skin lesions, and systemic manifestations. Vasculopathy occurs in the skin, muscle (mainly in the perifascicular area), and sometimes in the intestinal tissue.
Key facts
- Prevalence
- 1-9 / 1 000 000 (annual incidence)
- Age of onset
- Adolescent, Childhood, Infancy
- Inheritance
- Not applicable
- Classified as
- Disease
Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.
Signs and symptoms
Very common80–99%
15Common30–79%
13Sometimes5–29%
17and 9 more in this range
These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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