ICD-10 Code I70.545 – Atherosclerosis of nonautologous biological bypass graft(s) of the left leg with ulceration of other part of foot (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.545 – Atherosclerosis of nonautologous biological bypass graft(s) of the left leg with ulceration of other part of foot
What it is
This code identifies atherosclerosis affecting a nonautologous biological bypass graft in the left leg, with an associated ulcer on another part of the foot. It documents both graft disease and the ulcer complication.
Clinical signs
Look for evidence of peripheral arterial disease in a bypass graft plus a foot ulcer away from the heel or toes. Clinical features vary; refer to documentation for graft location, laterality, and ulcer site.
When to use this code
Use this code when the provider documents atherosclerosis in a nonautologous biological bypass graft of the left leg and specifically links it to an ulcer of another part of the foot. You should confirm the ulcer location and that the graft is biological, not autologous or synthetic. If laterality or ulcer site is unclear, check documentation before coding.
Do not use for
Do not use this code for native-vessel atherosclerosis without a bypass graft, or for ulcers without documented graft disease. Do not assume the code if the graft type or foot ulcer location is not specified.
Coding tip
Verify both the graft type and the exact ulcer site, because missing details can change the code selection.