ICD-10 Code I70.461 – Atherosclerosis of autologous vein bypass graft(s) of the extremities with gangrene, right leg (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.461 – Atherosclerosis of autologous vein bypass graft(s) of the extremities with gangrene, right leg
What it is
This code identifies atherosclerotic narrowing or blockage in an autologous vein bypass graft in the right leg, with gangrene present. Use it when documentation shows the graft itself is affected and tissue death has occurred.
Clinical signs
Findings may include ischemic pain, nonhealing wounds, cool skin, diminished pulses, or blackened tissue in the right leg. Clinical features vary; refer to documentation.
When to use this code
Use I70.461 when the record states atherosclerosis involves an autologous vein bypass graft in the right lower extremity and gangrene is documented. The graft must be the site of disease, not only the native artery.
Choose this code when laterality is right leg and the provider links the gangrene to the affected bypass graft. Check documentation if the note does not clearly identify the graft type or side.
Do not use for
Do not use this code for gangrene without documented atherosclerosis of an autologous vein bypass graft. Do not use it for native vessel disease, prosthetic grafts, or unspecified laterality.
Coding tip
Confirm the graft type, extremity, and right-sided laterality in the operative or vascular note before assigning I70.461.