ICD-10 Code I70.392 – Other atherosclerosis of unspecified type of bypass graft(s) of the extremities, left leg (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.392 – Other atherosclerosis of unspecified type of bypass graft(s) of the extremities, left leg
What it is
This code identifies atherosclerotic disease affecting an unspecified bypass graft in the left leg. Use it when the graft itself has plaque-related narrowing or blockage and the documentation does not specify the graft type.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include reduced leg perfusion, claudication, rest pain, or poor distal pulses when the graft is compromised.
When to use this code
Use I70.392 when the record states atherosclerosis of an unspecified bypass graft in the left lower extremity. It fits postoperative vascular follow-up, imaging findings, or specialist assessment documenting graft disease. If the graft type is named elsewhere, code that more specific option instead.
Do not use for
Do not use this code for native artery atherosclerosis, graft infection, or acute thrombosis without documented atherosclerotic disease. Check documentation if the left leg site or bypass graft status is unclear.
Coding tip
Verify both the laterality and that the atherosclerosis involves the bypass graft, not the native vessel.