Athscl type of bypass of the left leg w ulcer oth prt foot

This code describes the presence of atherosclerosis affecting a bypass graft in the left leg, specifically when it has led to ulceration on a part of the foot other than the heel or midfoot. This indicates a complication of a prior revascularization procedure in the left lower extremity, where the graft itself has developed plaque buildup, resulting in compromised blood flow and subsequent tissue breakdown in the foot.

Use this code when documentation clearly states atherosclerosis of a bypass graft (e.g., femoropopliteal, femorodistal) in the left leg, accompanied by an ulcer on the left foot (excluding heel or midfoot). This typically applies to patients with a history of peripheral artery disease who have undergone bypass surgery and are now presenting with graft failure due to atherosclerosis, manifesting as a foot ulcer.

• Ensure the documentation specifies "atherosclerosis" of the "bypass graft" and identifies the "left leg" and "ulceration of other part of foot."
• Do not confuse this with native vessel atherosclerosis or ulcerations due to other etiologies (e.g., venous stasis, diabetic neuropathy).
• Code any associated infections of the ulcer as secondary diagnoses.