Athscl autol vein bypass of the extrm w rest pain, right leg

This code signifies the hardening and narrowing of an autologous (patient's own) vein graft located in the right leg, specifically when the patient is experiencing rest pain. This condition indicates a failure or complication of a previous bypass surgery performed to improve blood flow in the extremity. The rest pain suggests severe ischemia.

Use this code when documentation clearly states atherosclerosis affecting an autologous vein bypass graft in the right leg, and the patient's primary symptom is rest pain. This typically occurs in patients with a history of peripheral artery disease who have undergone bypass grafting using a segment of their own vein. Supporting documentation would include physician notes detailing the graft's location, the presence of atherosclerosis, and the symptom of rest pain.

• Ensure the documentation specifies "autologous vein" graft; do not use for synthetic or allograft bypasses.
• Verify the laterality is explicitly "right leg" and that rest pain is documented as the symptom.
• Consider sequencing this code after the underlying peripheral artery disease (e.g., I70.2- series) if still present and contributing to the overall clinical picture.