Athscl unsp type bypass of right leg w ulcer oth prt foot

This code signifies a diagnosis of atherosclerosis affecting an unspecified type of bypass graft in the right leg, specifically complicated by ulceration located on a part of the foot other than the heel or toes. This indicates a compromised blood supply to the foot due to graft disease, leading to tissue breakdown.

Apply this code when documentation clearly states atherosclerosis of a right leg bypass graft (e.g., femoropopliteal, femorodistal) and an associated ulceration on the right foot, excluding the heel or toes. This typically occurs in patients with peripheral artery disease who have undergone revascularization.

• Ensure the documentation specifies "right leg" and "other part of foot" for the ulceration location.
• Distinguish from atherosclerosis of native arteries (I70.2- series) or other specified graft types (e.g., I70.31- for autologous vein bypass graft).
• Sequence this code as a primary diagnosis if the atherosclerosis and ulceration are the reason for the encounter, or as a secondary diagnosis if treating another condition but monitoring/managing this complication.