Rheumatoid lung disease w rheumatoid arthritis of l shoulder

This code signifies a systemic autoimmune condition where rheumatoid arthritis (RA) affects the left shoulder joint, and the patient also presents with lung disease directly attributed to their RA. It indicates a specific manifestation of RA impacting both the musculoskeletal and respiratory systems.

Apply this code when documentation clearly states a diagnosis of rheumatoid arthritis with involvement of the left shoulder and a co-occurring rheumatoid lung disease. This code is appropriate when the lung pathology is definitively linked to the patient's RA.

• Ensure documentation specifies "rheumatoid lung disease" and not just a general lung condition.
• Verify the laterality of the shoulder involvement (left).
• Code any associated complications or specific types of lung disease (e.g., interstitial lung disease) if documented, in addition to this code.