ICD-10 Code I70.35 – Atherosclerosis of unspecified type of bypass graft(s) of other extremity with ulceration (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.35 – Atherosclerosis of unspecified type of bypass graft(s) of other extremity with ulceration
What it is
This code identifies atherosclerotic narrowing or blockage in an unspecified bypass graft in an extremity other than the leg or arm, with an associated ulcer. Use it when the graft site and ulcer are documented, but the bypass type is not specified.
Clinical signs
Clinical features vary; refer to documentation. Common findings include poor wound healing, an open ulcer over the affected extremity, and evidence of impaired blood flow in the bypass graft.
When to use this code
Use I70.35 when the record states atherosclerosis of an unspecified bypass graft in another extremity and also documents ulceration. The ulcer must be linked to the graft disease, not simply present elsewhere on the limb. If the note lacks graft type or anatomic detail, this code may still apply, but check documentation.
Do not use for
Do not use this code for atherosclerosis without ulceration or when the ulcer is unrelated to the bypass graft. Do not use it if the documentation identifies a more specific graft type or a different vascular disorder.
Coding tip
Confirm that the ulcer is documented as associated with the bypass graft atherosclerosis before assigning I70.35.