Felty's syndrome, right elbow

This code identifies Felty's syndrome affecting the right elbow. Felty's syndrome is a rare, severe form of rheumatoid arthritis characterized by the triad of seropositive rheumatoid arthritis, splenomegaly, and neutropenia. The condition often leads to significant joint damage and systemic complications.

Use this code when documentation explicitly states a diagnosis of Felty's syndrome with involvement of the right elbow joint. This diagnosis is typically supported by clinical findings of rheumatoid arthritis, laboratory confirmation of neutropenia, and imaging or physical exam findings indicating right elbow pathology.

• Ensure documentation specifies "Felty's syndrome" and not just severe rheumatoid arthritis.
• Verify the laterality of the affected elbow (right vs. left vs. bilateral).
• Code any associated manifestations of Felty's syndrome, such as neutropenia (D70.0) or splenomegaly (R16.1), as secondary diagnoses.