ICD-10 Code I70.629 – Atherosclerosis of nonbiological bypass graft(s) of the extremities with rest pain, unspecified extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.629 – Atherosclerosis of nonbiological bypass graft(s) of the extremities with rest pain, unspecified extremity
What it is
This code identifies atherosclerotic narrowing in a nonbiological bypass graft in an extremity, with rest pain present. Use it when the graft is synthetic or other nonbiologic material and the affected limb is not specified.
Clinical signs
Typical findings include ischemic rest pain in the affected limb, often worse at night or when the leg is elevated. Clinical features vary; refer to documentation for graft type, limb involvement, and evidence of arterial insufficiency.
When to use this code
Use this code when the record documents atherosclerosis affecting a nonbiological peripheral bypass graft and the patient has rest pain. It is appropriate when the provider does not specify left or right extremity. Confirm that the graft, not the native artery, is the documented site.
Do not use for
Do not use this code for atherosclerosis of native extremity arteries, biological grafts, or bypass graft disease without rest pain. Check documentation if the limb laterality or graft material is unclear.
Coding tip
Always verify that both “nonbiological bypass graft” and “rest pain” are documented before assigning I70.629.