Oth athscl type of bypass of the extremities, bilateral legs

This code signifies atherosclerosis affecting a bypass graft in both lower extremities, where the specific type of graft is not otherwise specified. It indicates a hardening and narrowing of these surgically implanted vessels, leading to impaired blood flow to the legs. This condition can result in symptoms such as claudication, rest pain, or non-healing ulcers.

Use this code when documentation explicitly states atherosclerosis of a bypass graft in both legs, and the graft type is not specified (e.g., femoropopliteal, aortobifemoral). This applies to patients experiencing graft failure or stenosis due to atherosclerotic changes. Supporting documentation should include operative reports detailing the bypass procedure and subsequent diagnostic studies confirming atherosclerosis within the grafts.

• Ensure documentation specifies "bilateral legs" and "bypass graft(s)" to accurately assign this code.
• Distinguish from native vessel atherosclerosis (I70.2- series) or atherosclerosis of other specified graft types (e.g., I70.71-, I70.72-).
• Always sequence this code after any acute complications, such as graft occlusion or infection, if present.