Rheu lung disease w rheumatoid arthritis of unsp ank/ft

This code signifies a diagnosis of rheumatoid lung disease occurring in a patient with rheumatoid arthritis affecting an unspecified ankle and/or foot. It indicates systemic involvement of rheumatoid arthritis, specifically impacting both the respiratory system and the lower extremities.

Use this code when documentation clearly states a diagnosis of rheumatoid lung disease in a patient with rheumatoid arthritis of the ankle and/or foot, where the specific laterality (right or left) of the ankle/foot involvement is not documented. This code requires physician documentation of both conditions.

• Ensure documentation specifies "rheumatoid lung disease" and not just general lung disease.
• Only use this code when the specific ankle/foot laterality is truly unspecified; otherwise, use a more specific laterality code.
• Consider sequencing this code after the primary manifestation of rheumatoid arthritis if applicable.