ICD-10 Code I70.529 – Atherosclerosis of nonautologous biological bypass graft(s) of the extremities with rest pain, unspecified extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.529 – Atherosclerosis of nonautologous biological bypass graft(s) of the extremities with rest pain, unspecified extremity
What it is
This code identifies atherosclerotic narrowing or blockage in a nonautologous biological bypass graft in an extremity, with rest pain. Use it when the graft itself is the affected vessel and the limb laterality is not documented.
Clinical signs
Typical findings include ischemic limb pain at rest, often worse when the leg is elevated and relieved by dependency. Clinical features vary; refer to documentation for graft type, limb involvement, and evidence of impaired perfusion.
When to use this code
Use I70.529 when the provider documents atherosclerosis affecting a biological bypass graft in an arm or leg and specifically notes rest pain. Choose this code when the graft is nonautologous and the extremity is unspecified. If the record names a right or left limb, code that laterality instead.
Do not use for
Do not use this code for native artery atherosclerosis, graft infection, or acute graft occlusion without documented atherosclerosis. Check documentation if the pain is exertional only or if the graft type is not biological.
Coding tip
Verify both the graft material and the presence of rest pain before assigning this code.