ICD-10 Code I70.623 – Atherosclerosis of nonbiological bypass graft(s) of the extremities with rest pain, bilateral legs (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.623 – Atherosclerosis of nonbiological bypass graft(s) of the extremities with rest pain, bilateral legs
What it is
This code identifies atherosclerosis affecting a nonbiological bypass graft in both legs, with rest pain. It means the graft has narrowed or become blocked enough to cause ischemic pain even when the patient is not walking.
Clinical signs
Common findings include chronic limb ischemia, leg pain at rest, and reduced blood flow in the affected extremities. Clinical features vary; refer to documentation for laterality, graft type, and whether rest pain is specifically documented.
When to use this code
Use this code when the provider documents atherosclerosis in a nonbiological bypass graft of both lower extremities and specifically notes rest pain. You should also confirm that the graft is synthetic or otherwise nonbiological, not an autologous vein graft. If the record only says peripheral arterial disease or graft disease without rest pain, check documentation.
Do not use for
Do not use this code for atherosclerosis of native arteries, unspecified graft disease, or pain without documented rest pain. Check documentation if the graft type or bilateral involvement is not clearly stated.
Coding tip
Verify both the graft type and the bilateral rest-pain detail before assigning I70.623.