Oth athscl nonbiol bypass of the extremities, oth extremity

This code signifies the presence of atherosclerosis affecting a non-biological bypass graft in an extremity, excluding the lower leg. This condition involves the hardening and narrowing of the graft due to plaque buildup, impairing blood flow to the distal limb. It represents a complication of previous vascular bypass surgery using synthetic materials.

Use this code when documentation specifies atherosclerosis in a synthetic (e.g., Dacron, PTFE) bypass graft located in an extremity other than the lower leg, such as the upper arm, forearm, or thigh. This diagnosis is typically supported by imaging studies (e.g., angiography, duplex ultrasound) demonstrating plaque within the graft lumen and clinical signs of peripheral artery disease.

• Specify the affected extremity if possible, though this code covers "other extremity."
• Do not use for atherosclerosis of native vessels or biological (e.g., saphenous vein) grafts.
• Sequence this code after any underlying peripheral artery disease or other related conditions.