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Start free with EleplanUnspecified juvenile idiopathic arthritis
ORPHA:91140Disease
Also called Unspecified JIA
What it is
Unspecified juvenile idiopathic arthritis is a rare, pediatric, rheumatologic disease, a subtype of juvenile idiopathic arthritis (JIA) characterized by arthritis of an unknown cause that persists for at least 6 weeks, and does not fulfill the criteria for any of the other JIA subtypes, or fulfills criteria for more than one of the other subtypes.
Key facts
- Age of onset
- Childhood, Infancy
- Classified as
- Disease
Recorded for the broader condition
- Prevalence
- 1-5 / 10 000Juvenile idiopathic arthritis
Orphanet records these for the broader condition rather than for this specific form. They are a starting point, not a figure for this subtype — subtypes often differ, and some are defined by being rarer than the condition they sit under.
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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