ICD-10 Code I70.54 – Atherosclerosis of nonautologous biological bypass graft(s) of the left leg with ulceration (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.54 – Atherosclerosis of nonautologous biological bypass graft(s) of the left leg with ulceration
What it is
This code identifies atherosclerotic narrowing or blockage in a nonautologous biological bypass graft in the left leg, with an associated ulcer. Use it when the graft itself is the diseased vessel and the ulcer is documented.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include reduced limb perfusion, graft-related ischemic changes, and a documented ulcer on the left leg linked to the graft disease.
When to use this code
Use this code when the record specifically states atherosclerosis of a nonautologous biological bypass graft in the left leg and also documents ulceration. It applies when the ulcer is part of the coded condition, not just a separate wound diagnosis.
Choose it only if the provider links the ulcer to the graft atherosclerosis or clearly documents both together. Check documentation for laterality, graft type, and whether the ulcer is present.
Do not use for
Do not use this code for native artery disease, autologous graft disease, or bypass graft atherosclerosis without ulceration. If the side, graft type, or ulcer relationship is unclear, check documentation.
Coding tip
Verify the graft is nonautologous biological and that the left leg ulcer is documented as associated with the atherosclerosis.