Juvenile rheu arthritis w systemic onset, unsp shoulder

This code signifies a diagnosis of juvenile idiopathic arthritis (JIA) that presents with systemic features, such as fever, rash, and lymphadenopathy, and affects an unspecified shoulder joint. It indicates a chronic inflammatory condition primarily affecting children, with the systemic form being one of the most severe subtypes.

Apply this code when documentation confirms a diagnosis of systemic onset JIA with involvement of the shoulder, but the specific laterality (left or right) is not specified. This code is appropriate when the physician's notes clearly state "systemic onset juvenile rheumatoid arthritis" and mention shoulder involvement without further anatomical detail.

• Ensure documentation explicitly states "systemic onset" to differentiate from other JIA subtypes.
• Avoid using this code if laterality of the shoulder is documented; instead, select a more specific code (e.g., M08.211 or M08.212).
• Consider co-reporting codes for associated systemic manifestations if documented, such as pericarditis or uveitis.