Rheumatoid bursitis, left shoulder

This code identifies inflammation of the bursa in the left shoulder joint, specifically when it is a manifestation of rheumatoid arthritis. It indicates a localized inflammatory process affecting the synovial sac that cushions the shoulder joint, stemming from a systemic autoimmune condition.

Use this code when documentation clearly states "rheumatoid bursitis" affecting the left shoulder. This diagnosis is typically supported by clinical findings of shoulder pain, swelling, and limited range of motion in a patient with a confirmed diagnosis of rheumatoid arthritis.

• Ensure the documentation explicitly links the bursitis to rheumatoid arthritis; otherwise, a non-rheumatoid bursitis code would be more appropriate.
• Laterality is crucial; verify "left shoulder" is documented.
• Consider sequencing this code after the primary rheumatoid arthritis diagnosis (e.g., M05.xx or M06.xx).