ICD-10 Code I70.311 – Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication, right leg (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.311 – Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication, right leg
What it is
This code identifies atherosclerotic narrowing in an unspecified bypass graft in the leg arteries, causing intermittent claudication in the right leg. Use it when documentation links the graft disease to exertional leg pain.
Clinical signs
Typical findings include right leg pain or cramping with walking that improves with rest. Clinical features vary; refer to documentation for graft location, laterality, and evidence of peripheral arterial disease.
When to use this code
Use this code when the provider documents atherosclerosis affecting an unspecified bypass graft in the extremities and specifies intermittent claudication in the right leg. It fits postoperative or follow-up records where the graft remains patent but symptomatic. Confirm that the documentation identifies the right leg and does not name a more specific bypass graft type.
Do not use for
Do not use this code for native artery atherosclerosis, claudication without documented graft involvement, or disease in the left leg or both legs. Check documentation if the bypass graft type is specified differently.
Coding tip
Verify both the graft involvement and right-sided claudication before assigning I70.311.