Rheumatoid lung disease w rheumatoid arthritis of left wrist

This code signifies a manifestation of rheumatoid arthritis (RA) affecting the lungs, specifically when the RA also involves the left wrist. It indicates a systemic autoimmune disorder where the immune system attacks healthy tissues, leading to inflammation in both the joints and pulmonary system.

Apply this code when documentation clearly states a diagnosis of rheumatoid lung disease in a patient with confirmed rheumatoid arthritis of the left wrist. This typically occurs in patients with long-standing or severe RA. Supporting documentation should include physician notes detailing both the pulmonary involvement and the specific joint affected.

• Ensure documentation specifies "rheumatoid lung disease" and not just general lung involvement in RA.
• Verify the laterality of the wrist involvement; this code is specific to the left wrist.
• Always sequence the underlying rheumatoid arthritis code (M05.1-) as the primary diagnosis when applicable, followed by codes for specific organ manifestations.