ICD-10 Code I70.511 – Atherosclerosis of nonautologous biological bypass graft(s) of the extremities with intermittent claudication, right leg (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.511 – Atherosclerosis of nonautologous biological bypass graft(s) of the extremities with intermittent claudication, right leg
What it is
This code identifies plaque buildup in a nonautologous biological bypass graft in the right leg, causing reduced blood flow during activity. It applies when the graft itself, not the native artery, is the documented site of atherosclerosis.
Clinical signs
Typical findings include exertional leg pain or cramping that improves with rest, consistent with intermittent claudication. Clinical features vary; refer to documentation for graft location, laterality, and evidence of atherosclerotic disease.
When to use this code
Use this code when the provider documents atherosclerosis involving a nonautologous biological bypass graft in the right lower extremity and specifies intermittent claudication. You should confirm that the record names the graft as the affected vessel. If laterality or claudication is not documented, check documentation before coding.
Do not use for
Do not use this code for atherosclerosis of native arteries, other bypass graft types, or disease in the left leg. Do not assign it when intermittent claudication or the right-sided location is not documented.
Coding tip
Verify both the graft type and the right-leg laterality, because missing details can change the code selection.