ICD-10 Code I70.601 – Unspecified atherosclerosis of nonbiological bypass graft(s) of the extremities, right leg (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.601 – Unspecified atherosclerosis of nonbiological bypass graft(s) of the extremities, right leg
What it is
This code identifies atherosclerotic narrowing or blockage in a nonbiological bypass graft in the right leg. Use it when the graft is affected, but the documentation does not specify the exact vessel segment or type of graft complication.
Clinical signs
Clinical features vary; refer to documentation. Findings may include reduced leg blood flow, exertional leg pain, rest pain, coolness, diminished pulses, or graft-related ischemic symptoms.
When to use this code
Use I70.601 when the provider documents atherosclerosis involving a nonbiological bypass graft in the right lower extremity and does not provide a more specific code. It fits postoperative vascular follow-up, imaging, or operative documentation that confirms graft atherosclerosis. Check documentation if laterality, graft type, or anatomic detail is unclear.
Do not use for
Do not use this code for atherosclerosis of native arteries, or for graft problems due to thrombosis, infection, or mechanical failure. If the note describes a different limb or a biological graft, code the documented condition instead.
Coding tip
Verify that the record states both right leg involvement and a nonbiological bypass graft before assigning I70.601.