Athscl autol vein bypass of the extrm w rest pain, bi legs

This code signifies hardening and narrowing of a patient's own vein that was surgically transplanted to bypass an obstructed artery in both lower extremities. The patient is experiencing pain at rest, indicating severe ischemia. This condition represents a failure or complication of a previous revascularization procedure.

Apply this code when documentation specifies atherosclerosis affecting autologous vein bypass grafts in both legs, accompanied by rest pain. This typically occurs in patients with a history of peripheral artery disease who have undergone bypass surgery using their own saphenous vein, and are now presenting with graft failure and critical limb ischemia.

• Ensure the documentation explicitly states "autologous vein bypass graft" and "bilateral legs."
• Confirm the presence of "rest pain" as a specific symptom, differentiating it from claudication.
• This code indicates a complication of a previous bypass; consider sequencing with underlying peripheral artery disease if still relevant.