ICD-10 Code I70.763 – Atherosclerosis of other type of bypass graft(s) of the extremities with gangrene, bilateral legs (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.763 – Atherosclerosis of other type of bypass graft(s) of the extremities with gangrene, bilateral legs
What it is
This code identifies atherosclerotic narrowing or blockage in an other-type bypass graft in the leg arteries, with tissue death from gangrene affecting both legs. Use it when the graft, not the native artery, is the documented disease site.
Clinical signs
Findings may include ischemic pain, cold or pale feet, weak pulses, and black or necrotic tissue consistent with gangrene. Clinical features vary; refer to documentation and vascular assessment.
When to use this code
Use I70.763 when the provider documents atherosclerosis in an extremity bypass graft of another type and specifies gangrene in both legs. It fits postoperative or chronic vascular disease records when the graft is the affected vessel. Check documentation if laterality or graft type is unclear.
Do not use for
Do not use this code for native artery atherosclerosis without bypass graft involvement, or for gangrene without documented atherosclerosis. Do not assign it if the graft type or bilateral leg involvement is not confirmed.
Coding tip
Verify the exact graft type, extremity site, and laterality in the note before coding.