Rheumatoid bursitis, left ankle and foot

This diagnosis code signifies inflammation of the bursae in the left ankle and foot region, specifically caused by rheumatoid arthritis. It indicates a localized manifestation of rheumatoid disease affecting these specific anatomical sites.

This code is appropriate when documentation clearly states a diagnosis of rheumatoid bursitis affecting the left ankle or foot. Supporting documentation should include a confirmed diagnosis of rheumatoid arthritis and clinical findings consistent with bursitis in the specified location.

• Ensure the documentation specifies "rheumatoid" bursitis, not just general bursitis.
• Verify the laterality (left) and anatomical site (ankle and foot) are clearly documented.
• Always sequence a code for the underlying rheumatoid arthritis (e.g., from category M05 or M06) as the primary diagnosis, followed by this code as a secondary diagnosis.