Athscl unsp type bypass of extrm w intrmt claud, left leg

This code signifies the presence of atherosclerosis affecting a bypass graft in the left leg, specifically when the patient experiences intermittent claudication. This condition indicates a narrowing or hardening of the graft, leading to pain or cramping in the leg during exercise that is relieved by rest. It represents a complication of a prior revascularization procedure in the lower extremity.

Use this code when documentation clearly states atherosclerosis of a bypass graft in the left lower extremity, accompanied by symptoms of intermittent claudication. This typically applies to patients with a history of peripheral artery disease (PAD) who have undergone a bypass grafting procedure and are now experiencing graft failure or stenosis due to atherosclerotic changes. Supporting documentation would include physician notes detailing the graft's location, the atherosclerotic changes, and the presence of intermittent claudication in the left leg.

• Ensure the documentation specifies "bypass graft" and not a native vessel, as different codes apply to native vessel atherosclerosis.
• Verify laterality (left leg) and the presence of intermittent claudication; other symptoms or lack thereof would require a different code.
• Always sequence this code after the underlying peripheral artery disease (e.g., I70.2- series) if it is still active and contributing to the patient's overall condition.