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

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

Use this code when documentation clearly states atherosclerosis of a right leg bypass graft with an associated ulcer, but the type of graft (e.g., autologous vein, synthetic) and the exact site of the ulcer (e.g., ankle, foot) are not specified. This code is appropriate when the physician's notes confirm both the graft involvement and the ulceration, without further granular detail on these aspects.

• Ensure documentation explicitly states "atherosclerosis" of the bypass graft and "ulceration."
• If the type of bypass graft or the specific site of the ulcer is documented, a more specific code within the I70.33 series should be used.
• Always sequence this code after any underlying systemic conditions contributing to the atherosclerosis, if applicable.