Unsp athscl type of bypass of the extremities, right leg

This code signifies the presence of atherosclerosis within a bypass graft located in the right leg, where the specific type of bypass graft (e.g., femoropopliteal, femorodistal) is not documented. It indicates a hardening and narrowing of the graft due to plaque buildup, impairing blood flow to the lower extremity.

Apply this code when documentation confirms atherosclerosis affecting a bypass graft in the right leg, but the precise anatomical location or type of the graft is not specified. This is typically seen in patients with a history of peripheral artery disease who have undergone revascularization procedures.

• Ensure the documentation clearly specifies the right leg. If the laterality is not documented, an unspecified laterality code should be used.
• This code is for unspecified graft type. If the graft type is known (e.g., femoropopliteal, femorodistal), a more specific code from the I70.71-I70.76 series should be selected.
• Do not use this code for native artery atherosclerosis; it is specifically for bypass grafts.