ICD-10 Code I70.328 – Atherosclerosis of unspecified type of bypass graft(s) of the extremities with rest pain, other extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.328 – Atherosclerosis of unspecified type of bypass graft(s) of the extremities with rest pain, other extremity
What it is
This code identifies atherosclerotic narrowing or blockage in an unspecified bypass graft in an extremity, with rest pain affecting the other extremity. Use it when the graft type is not documented and the pain is described as occurring at rest.
Clinical signs
Typical findings include ischemic leg or arm pain that occurs without activity, often worse when the limb is elevated or at night. Clinical features vary; refer to documentation for the affected side, graft details, and whether the pain is truly at rest.
When to use this code
Use I70.328 when the record clearly documents atherosclerosis in a bypass graft of an extremity and rest pain is present in the other extremity. It is appropriate when the graft type is unspecified and the documentation does not identify a more specific bypass graft code. Confirm laterality and anatomy before assigning the code.
Do not use for
Do not use this code if the pain is exertional only, if the graft type is documented more specifically, or if the condition involves native arteries rather than a bypass graft. Check documentation.
Coding tip
Verify the bypass graft site, graft type, and laterality first; unspecified details can change the code selection.