Juvenile rheumatoid arthritis w systemic onset, r shoulder

This code signifies a diagnosis of juvenile idiopathic arthritis (JIA) of the systemic onset subtype, specifically affecting the right shoulder joint. Systemic JIA is characterized by arthritis accompanied by fever, rash, lymphadenopathy, hepatosplenomegaly, and serositis.

Apply this code when documentation clearly indicates a diagnosis of systemic onset JIA with active inflammation or involvement of the right shoulder. This typically occurs in pediatric patients presenting with both systemic symptoms and objective evidence of arthritis in the right shoulder.

• Ensure documentation specifies "systemic onset" JIA, as other JIA subtypes have different codes.
• Verify laterality (right shoulder) is explicitly stated; otherwise, an unspecified laterality code may be more appropriate.
• Do not confuse with adult rheumatoid arthritis codes, which are distinct.