ICD-10 Code I70.429 – Atherosclerosis of autologous vein bypass graft(s) of the extremities with rest pain, unspecified extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.429 – Atherosclerosis of autologous vein bypass graft(s) of the extremities with rest pain, unspecified extremity
What it is
This code identifies atherosclerotic narrowing or blockage in an autologous vein bypass graft in an extremity, with rest pain present and the affected limb not specified. It reflects graft disease, not native artery disease.
Clinical signs
Typical findings include ischemic rest pain in the foot or leg, often worse when the limb is elevated and relieved by dependency. Clinical features vary; refer to documentation.
When to use this code
Use I70.429 when the provider documents atherosclerosis affecting an autologous vein bypass graft in an arm or leg and notes rest pain. Choose this code when the extremity is not identified in the record. If the note specifies another graft type or no rest pain, this code is not appropriate.
Do not use for
Do not use this code for atherosclerosis of native arteries, prosthetic grafts, or bypass graft disease without rest pain. Check documentation if the extremity or graft type is unclear.
Coding tip
Confirm both the graft material and the presence of rest pain before assigning I70.429.