ICD-10 Code I70.469 – Atherosclerosis of autologous vein bypass graft(s) of the extremities with gangrene, unspecified extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.469 – Atherosclerosis of autologous vein bypass graft(s) of the extremities with gangrene, unspecified extremity
What it is
This code identifies atherosclerotic narrowing or blockage in an autologous vein bypass graft in an extremity, with gangrene present. Use it when the affected limb is not specified in the record.
Clinical signs
Findings may include poor distal perfusion, ischemic pain, tissue loss, or black, dead tissue consistent with gangrene. Clinical features vary; refer to documentation.
When to use this code
Use I70.469 when the provider documents atherosclerosis affecting a vein bypass graft in an arm or leg and gangrene is present, but laterality is not stated. The record should support both the bypass-graft origin and the gangrenous complication. Check documentation if the graft type or extremity is unclear.
Do not use for
Do not use this code for native-vessel peripheral arterial disease without a bypass graft. Also avoid it when gangrene is absent or when the documentation identifies a different graft type or a specific extremity.
Coding tip
Confirm the graft is autologous vein and capture any documented laterality before assigning an unspecified-extremity code.