Rheumatoid vasculitis w rheumatoid arthritis of left ank/ft

This code signifies a severe extra-articular manifestation of rheumatoid arthritis (RA), specifically vasculitis, affecting the blood vessels in the left ankle and foot. Rheumatoid vasculitis is an inflammatory condition of the blood vessels that can lead to tissue damage and necrosis.

This code is appropriate when documentation explicitly states rheumatoid vasculitis as a complication of rheumatoid arthritis, with the specific anatomical site being the left ankle and foot. Supporting documentation should include physician notes detailing the diagnosis of RA, evidence of vasculitis (e.g., biopsy results, clinical findings like skin ulcers or purpura), and clear localization to the left ankle and foot.

• Always ensure the documentation specifies "rheumatoid vasculitis" and not just general vasculitis in a patient with RA.
• Verify the laterality (left) and specific joint/area (ankle and foot) are clearly documented.
• Code also the underlying rheumatoid arthritis if not already captured by this code (e.g., M05.872 for other specified rheumatoid arthritis of left ankle and foot, if applicable).