Psoriatic juvenile arthropathy

This code signifies a chronic inflammatory arthropathy affecting children and adolescents, characterized by both psoriasis and joint inflammation. It is a subtype of juvenile idiopathic arthritis (JIA) where skin lesions typical of psoriasis are present alongside arthritis. The condition can affect any joint and may lead to joint damage and functional impairment.

Apply this code when documentation clearly indicates a diagnosis of psoriatic arthritis in a patient under 16 years of age. This diagnosis is typically made by a pediatric rheumatologist based on clinical criteria including the presence of psoriasis and arthritis. Supporting documentation should detail the specific joints affected and the presence of psoriatic skin lesions.

• Ensure the patient's age is consistent with a "juvenile" diagnosis.
• Distinguish from other forms of JIA; look for explicit mention of psoriasis.
• Code any associated manifestations of psoriasis (e.g., L40.0 for psoriasis vulgaris) as additional diagnoses.