Athscl nonbiol bypass of left leg w ulcer oth prt low leg

This code signifies a specific type of peripheral artery disease involving the hardening and narrowing of a synthetic (nonbiological) bypass graft located in the left leg. The atherosclerosis has progressed to cause ulceration on a part of the lower leg, indicating significant tissue damage due to impaired blood flow.

Use this code when documentation confirms atherosclerosis affecting a nonbiological bypass graft in the left leg, specifically with an associated ulceration on the lower leg (excluding the ankle or foot). This typically applies to patients with a history of bypass surgery for peripheral artery disease who are now experiencing graft failure and ischemic ulceration.

• Ensure the documentation specifies a nonbiological bypass graft and left leg involvement.
• Verify the ulceration is on the lower leg and not the ankle or foot, which would require a different code.
• Code any associated underlying systemic conditions, such as diabetes, that may contribute to the atherosclerosis or ulceration.