Athscl native arteries of extrm w gangrene, bilateral legs

This code signifies a severe form of peripheral artery disease (PAD) affecting both lower extremities, characterized by the hardening and narrowing of the native arteries due to plaque buildup, which has progressed to tissue death (gangrene). It indicates significant vascular compromise leading to irreversible tissue damage in both legs.

Apply this code when documentation clearly states atherosclerosis of the native arteries in both legs, accompanied by gangrene. This typically occurs in patients with advanced PAD, often with critical limb ischemia. Supporting documentation includes physician notes detailing the diagnosis, location (bilateral legs), and presence of gangrenous tissue.

• Ensure documentation specifies "native arteries" and not bypass grafts.
• Confirm the presence of gangrene; do not use for ischemia without tissue necrosis.
• Always code any associated underlying conditions, such as diabetes mellitus, which often exacerbates PAD.