ICD-10 Code I70.535 – Atherosclerosis of nonautologous biological bypass graft(s) of the right leg with ulceration of other part of foot (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.535 – Atherosclerosis of nonautologous biological bypass graft(s) of the right leg with ulceration of other part of foot
What it is
This code identifies atherosclerotic narrowing or blockage in a nonautologous biological bypass graft in the right leg, with an associated ulcer on another part of the foot. Use it when the graft is the documented site of disease.
Clinical signs
Findings may include reduced limb perfusion, graft-related ischemic symptoms, and a foot ulcer documented on a non-healing area. Clinical features vary; refer to documentation.
When to use this code
Use I70.535 when the provider documents atherosclerosis affecting a biological bypass graft in the right leg and specifies ulceration of another part of the foot. The ulcer location must be documented, and the right-sided graft involvement should be clear.
Choose this code when the record links the vascular disease to the graft rather than to native arteries alone. If the laterality, graft type, or ulcer site is unclear, check documentation before coding.
Do not use for
Do not use this code for ulcers without documented atherosclerosis of the bypass graft, or for disease in the left leg. Do not assign it if the graft type is not biological or is not nonautologous.
Coding tip
Verify three elements in the note: right leg, nonautologous biological graft, and ulceration site on the foot.