Athscl type of bypass of the right leg w ulcer of unsp site

This code signifies the presence of atherosclerosis affecting a bypass graft in the right leg, specifically when the graft type is not further specified. A key feature is the development of an ulceration, the precise location of which is also unspecified. This indicates a complication of the bypass graft due to plaque buildup, leading to tissue breakdown.

Apply this code when documentation clearly states atherosclerosis of a right leg bypass graft, with an associated ulceration, and the specific type of graft (e.g., femoropopliteal, femorodistal) is not detailed. This code is appropriate for patients presenting with symptoms related to graft failure and skin integrity issues in the right lower extremity following a bypass procedure. Documentation should confirm both the atherosclerotic process within the graft and the presence of an ulcer.

• Ensure documentation specifies "right leg" and "bypass graft" to differentiate from native vessel atherosclerosis or other locations.
• If the specific type of bypass graft is known (e.g., femoropopliteal, popliteal-tibial), a more specific code from the I70.73- series should be used.
• Always code the underlying condition (e.g., peripheral artery disease) and any associated complications (e.g., infection of the ulcer) in addition to this code.