ICD-10 Code I70.362 – Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene, left leg (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.362 – Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene, left leg
What it is
This code identifies atherosclerosis affecting a bypass graft in an extremity, with gangrene present in the left leg. Use it when the graft itself is diseased and the documented limb complication is gangrene.
Clinical signs
Typical findings include ischemic tissue loss, black or necrotic skin, and poor perfusion in the left leg. Clinical features vary; refer to documentation for graft type, laterality, and extent of gangrene.
When to use this code
Use I70.362 when the record clearly states atherosclerosis of an unspecified bypass graft in an extremity and gangrene of the left leg. It fits postoperative or vascular follow-up notes that document graft occlusion or narrowing with gangrenous changes. Check documentation if the graft site or laterality is unclear.
Do not use for
Do not use this code for native artery atherosclerosis without a bypass graft, or for gangrene not linked to atherosclerotic graft disease. Do not assign it if documentation only says peripheral vascular disease. Check documentation.
Coding tip
Confirm both the bypass graft involvement and left-leg gangrene in the same note before assigning I70.362.