Rheumatoid lung disease w rheumatoid arthritis of unsp site

This code describes a systemic autoimmune condition where rheumatoid arthritis (RA) manifests with lung involvement, specifically rheumatoid lung disease. It indicates that the specific anatomical site of the rheumatoid arthritis itself is not documented or is unknown.

Apply this code when a patient has a confirmed diagnosis of rheumatoid lung disease in conjunction with rheumatoid arthritis, and the medical record does not specify the joint or body region affected by the RA. Documentation should clearly state both rheumatoid lung disease and rheumatoid arthritis, with an unspecified site for the latter.

• Always seek to clarify the specific site of rheumatoid arthritis if possible, as more specific codes exist.
• Do not use this code if the documentation specifies a particular joint or body region affected by the rheumatoid arthritis.
• Consider sequencing this code after more specific codes for the type of rheumatoid lung disease, if applicable and documented.