ICD-10 Code I70.698 – Other atherosclerosis of nonbiological bypass graft(s) of the extremities, other extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.698 – Other atherosclerosis of nonbiological bypass graft(s) of the extremities, other extremity
What it is
This code identifies atherosclerotic narrowing or blockage in a nonbiological bypass graft in an extremity, when the affected limb site is other than the specifically listed locations. Use it for graft disease, not native artery disease.
Clinical signs
Clinical features may include reduced limb perfusion, exertional pain, rest pain, or graft-related ischemic findings. Imaging or vascular studies may show plaque-related compromise of the bypass graft; clinical features vary, refer to documentation.
When to use this code
Use I70.698 when the provider documents atherosclerosis involving a prosthetic or other nonbiological bypass graft in an extremity and the site is not captured by a more specific code. It may apply to follow-up evaluations, vascular consultations, or documented graft stenosis/occlusion. Confirm the graft is nonbiological and the location is the “other extremity” category.
Do not use for
Do not use this code for atherosclerosis of native arteries, or when the bypass graft is biological. If the documentation does not clearly identify graft involvement or the extremity site, check documentation.
Coding tip
Verify both the graft type and the exact extremity location before assigning I70.698.