ICD-10 Code I70.70 – Unspecified atherosclerosis of other type of bypass graft(s) of the extremities (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.70 – Unspecified 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 other than the common categories and the record does not specify more detail.
Clinical signs
Clinical features vary; refer to documentation. You may see reduced limb perfusion, exertional pain, or graft-related ischemic findings, but the record should confirm atherosclerosis in the bypass graft.
When to use this code
Use this code when the provider documents atherosclerosis affecting an extremity bypass graft and does not identify a more specific graft type or complication. It also fits when the note clearly states the condition is unspecified. Check documentation if the graft site, laterality, or severity is described elsewhere.
Do not use for
Do not use it for native artery atherosclerosis, acute graft occlusion, or thrombosis without atherosclerosis. If the record names a different graft type or a more specific bypass graft code, report that instead.
Coding tip
Confirm the bypass graft is in an extremity and that the provider documents atherosclerosis, not another graft complication.