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Rheumatoid factor-negative juvenile idiopathic arthritis

Disease definition

Rheumatoid factor-negative polyarthritis is a term used to describe a group of poorly defined heterogenous conditions that incorporates forms of rheumatoid factor-negative polyarthritis and forms of oligoarticular arthritis that become extensive in less than 6 months after onset.


Classification level: Disorder
  • Synonym(s):
    • Juvenile rheumatoid factor-negative polyarthritis
    • Polyarthritis without rheumatoid factor
    • Rheumatoid factor-negative JIA
  • Prevalence: 1-9 / 100 000
  • Inheritance: Multigenic/multifactorial 
  • Age of onset: Childhood
  • ICD-10: M08.3
  • OMIM: -
  • UMLS: -
  • MeSH: -
  • GARD: -
  • MedDRA: -

Detailed information


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