Athscl unsp type bypass of the extrm w rest pain, right leg

This code signifies atherosclerosis affecting a bypass graft in the right leg, where the specific type of graft (e.g., femoropopliteal, femorotibial) is not documented. The patient is experiencing rest pain, indicating severe limb ischemia. This condition represents a critical stage of peripheral artery disease in a revascularized limb.

Apply this code when documentation clearly states atherosclerosis of an unspecified bypass graft in the right lower extremity, accompanied by rest pain. This typically occurs in patients with a history of peripheral bypass surgery who are now presenting with ischemic symptoms at rest. Supporting documentation includes physician notes detailing the location, the presence of a graft, and the symptom of rest pain.

• Ensure the documentation specifies "rest pain" and not just claudication, as this indicates a higher severity.
• Verify the laterality is explicitly "right leg" to avoid incorrect assignment.
• Do not use this code if the specific type of bypass graft (e.g., femoropopliteal, aortofemoral) is identified; instead, use the more specific I70.31- or I70.33- codes.