ICD-10 Code I70.702 – Unspecified atherosclerosis of other type of bypass graft(s) of the extremities, left leg (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.702 – Unspecified atherosclerosis of other type of bypass graft(s) of the extremities, left leg
What it is
This code identifies atherosclerosis affecting a bypass graft in the left leg when the graft type is not further specified. Use it for documented graft narrowing or blockage due to plaque buildup.
Clinical signs
Findings may include reduced leg perfusion, exertional leg pain, diminished pulses, or graft-related ischemic symptoms. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents atherosclerosis of an unspecified bypass graft in the left lower extremity and does not name a more specific graft type. It also fits follow-up care when the condition remains active and is still being evaluated. If the record identifies a different graft type or laterality, code that documentation instead.
Do not use for
Do not use it for native artery atherosclerosis, nonatherosclerotic graft problems, or bypass graft disease in another limb. Check documentation if the graft type or laterality is unclear.
Coding tip
Verify both laterality and graft type before assigning I70.702; unspecified graft wording must be supported by the provider record.