Oth athscl nonbiological bypass of the extremities, left leg

This code signifies the presence of atherosclerosis affecting a non-biological bypass graft located in the left leg. This condition involves the hardening and narrowing of the artificial vessel due to plaque buildup, impeding blood flow to the lower extremity. It represents a complication of prior vascular bypass surgery using synthetic materials.

Use this code when documentation clearly indicates atherosclerosis within a prosthetic (non-biological) bypass graft in the patient's left leg. This diagnosis is typically supported by imaging studies (e.g., angiography, duplex ultrasound) demonstrating plaque formation or stenosis within the graft. It applies to patients experiencing symptoms of peripheral artery disease (PAD) related to graft failure.

• Ensure the documentation specifies "non-biological" or "prosthetic" graft material; do not use for autologous vein grafts.
• Confirm the laterality is explicitly stated as "left leg" to avoid miscoding.
• Consider sequencing this code after any underlying peripheral artery disease (e.g., I70.2-) if the atherosclerosis in the graft is a complication of that condition.