ICD-10 Code I70.562 – Atherosclerosis of nonautologous biological bypass graft(s) of the extremities with gangrene, left leg (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.562 – Atherosclerosis of nonautologous biological bypass graft(s) of the extremities with gangrene, left leg
What it is
This code identifies atherosclerotic narrowing or blockage in a nonautologous biological bypass graft in the left leg, with gangrene present. Use it when the graft itself is the affected vessel and documentation links the condition to the left lower extremity.
Clinical signs
Typical findings include poor limb perfusion, ischemic skin changes, tissue necrosis, and documented gangrene in the left leg. Clinical features vary; refer to documentation.
When to use this code
Use I70.562 when the record states atherosclerosis involves a biological bypass graft in the left lower extremity and gangrene is documented. The graft must be nonautologous, meaning it was not taken from the patient. Confirm laterality and graft type in the operative or vascular note.
Do not use for
Do not use this code for atherosclerosis of native arteries, autologous vein grafts, or graft disease without gangrene. Check documentation if the bypass type, limb, or presence of gangrene is unclear.
Coding tip
Verify the graft material and laterality before coding, because the ICD-10 category changes with the vessel type and the affected leg.