ICD-10 Code I70.313 – Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication, bilateral legs (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.313 – Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication, bilateral legs
What it is
This code identifies plaque-related narrowing in an unspecified bypass graft in the arms or legs, with intermittent claudication affecting both legs. Use it when the record documents atherosclerosis of a bypass graft and bilateral 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 for the affected graft type, laterality, and confirmed intermittent claudication.
When to use this code
Use I70.313 when the provider documents atherosclerosis involving an unspecified bypass graft of the extremities and specifically notes bilateral intermittent claudication. The record should support both the vascular graft disease and the bilateral leg symptoms. If laterality or graft type is unclear, check documentation before coding.
Do not use for
Do not use this code for native-vessel peripheral arterial disease, bypass graft disease without claudication, or claudication that is not documented as bilateral. Check documentation if the graft type or laterality differs.
Coding tip
Code the bypass graft location and the bilateral claudication exactly as documented; unspecified details should not be assumed.