Pauciarticular juvenile rheumatoid arthritis, oth site

This code signifies a chronic inflammatory joint disease affecting four or fewer joints during the first six months of the illness, occurring in individuals under 16 years of age. It represents a specific subtype of juvenile idiopathic arthritis (JIA) where the affected joint(s) are not explicitly classified elsewhere.

Apply this code when documentation specifies pauciarticular juvenile rheumatoid arthritis and the affected joint site is not one of the more specific options (e.g., hand, foot, ankle, knee, multiple sites). This code is appropriate when the medical record indicates a diagnosis of pauciarticular JIA and the involved joint is described as "other specified site."

• Ensure the documentation clearly states "pauciarticular" and specifies an "other" joint site not covered by more granular codes.
• Do not use this code if more than four joints are involved or if the onset is after age 16.
• Consider sequencing this code with a code for any associated systemic manifestations if present and documented.