Juvenile Idiopathic Arthritis
Juvenile Idiopathic Arthritis is indexed under Pediatric-Onset Chronic, Pediatric Rheumatology. Also known as JIA, juvenile rheumatoid arthritis, JRA.
- US prevalence
- ~294,000 children in the United States Source: MedlinePlus Genetics (NLM), Juvenile idiopathic arthritis, frequency section last updated June 1, 2019. This figure comes from a professional society, registry, or study rather than a federal source. Label: REPORTED.
- ICD-10-CM codes
- M08, M08.0
- Typical onset
- Before age 16; bimodal 2-4 and 6-12
- Course
- managed
- Body systems
- musculoskeletal, ophthalmologic
- Sex differences
- F:M ~2-3:1 for most subtypes
- Racial and ethnic differences
- May be underdiagnosed in non-white children
What this page does not establish
These figures describe populations, not individuals, and none of them is a diagnosis or a treatment recommendation. Prevalence estimates are approximate and reflect published ranges. Disparity figures are reported patterns, not causes.
Taxonomy last reviewed 2026-05-19. Each figure on the interactive page carries its own source and retrieval date, which can be later than this review.
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