ICD-10 Code I70.79 – Other atherosclerosis of other type of bypass graft(s) of the extremities (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.79 – Other atherosclerosis of other type of bypass graft(s) of the extremities
What it is
This code identifies atherosclerotic narrowing or blockage in a bypass graft supplying an extremity when the graft type is not otherwise specified. Use it for graft disease affecting blood flow to an arm or leg.
Clinical signs
Clinical features vary; refer to documentation. Common findings include reduced limb perfusion, exertional pain, or diminished pulses in the affected extremity, with imaging or vascular studies showing graft atherosclerosis.
When to use this code
Use I70.79 when the record clearly states atherosclerosis in a bypass graft to an extremity and the graft is described as another type, not a standard category. It may apply after vascular imaging, operative review, or specialist assessment. Code the documented laterality or associated conditions separately when required.
Do not use for
Do not use this code for native artery atherosclerosis, acute graft occlusion, or graft problems caused by infection, thrombosis, or mechanical failure. Check documentation.
Coding tip
Confirm that the provider names both a bypass graft and atherosclerosis before assigning I70.79.