Felty's syndrome, right shoulder

This code identifies Felty's syndrome, a rare and severe complication of rheumatoid arthritis characterized by the triad of seropositive rheumatoid arthritis, splenomegaly, and neutropenia, specifically affecting the right shoulder. The shoulder involvement typically manifests as chronic inflammatory arthritis.

Apply this code when documentation explicitly states a diagnosis of Felty's syndrome with specific involvement of the right shoulder joint. Supporting documentation should include evidence of rheumatoid arthritis, splenomegaly, neutropenia, and clinical findings or imaging confirming right shoulder arthritis.

• Ensure documentation clearly specifies "Felty's syndrome" and not just severe rheumatoid arthritis.
• Verify the laterality of shoulder involvement; separate codes exist for left, bilateral, and unspecified shoulders.
• Code any associated manifestations of rheumatoid arthritis or complications of Felty's syndrome (e.g., neutropenia, infections) as additional diagnoses.