ICD-10 Code I70.413 – Atherosclerosis of autologous vein bypass graft(s) of the extremities with intermittent claudication, bilateral legs (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.413 – Atherosclerosis of autologous vein bypass graft(s) of the extremities with intermittent claudication, bilateral legs
What it is
This code identifies narrowing from atherosclerosis in an autologous vein bypass graft in both legs, with intermittent claudication. It means the graft is affected by plaque buildup and causes exertional leg pain.
Clinical signs
Typical findings include leg pain or cramping brought on by walking and relieved by rest. Clinical features vary; refer to documentation, especially for evidence of bypass graft involvement and bilateral leg symptoms.
When to use this code
Use this code when the provider documents atherosclerosis in an autologous vein bypass graft of the lower extremities and specifies intermittent claudication in both legs. The record should support both the graft type and bilateral involvement. If the laterality or symptom pattern is unclear, check documentation.
Do not use for
Do not use this code for native artery peripheral arterial disease without a bypass graft, or for claudication not linked to the documented graft. Do not assign it if the graft type or bilateral leg involvement is not confirmed.
Coding tip
Verify the graft is autologous vein and that the provider documents intermittent claudication affecting both legs before assigning I70.413.