Athscl nonbiological bypass of extremity w ulceration

This code signifies the presence of atherosclerosis affecting a synthetic (nonbiological) bypass graft located in an extremity other than the lower limbs, and importantly, the condition has progressed to include ulceration. This indicates significant vascular compromise and tissue breakdown in the affected area.

Apply this code when documentation clearly states atherosclerosis within a nonbiological bypass graft of an upper extremity, or other non-lower extremity, complicated by ulcer formation. This is typically seen in patients with a history of peripheral artery disease who have undergone bypass surgery with synthetic grafts. Supporting documentation would include operative reports, vascular studies, and wound care notes detailing the ulcer.

• Ensure the documentation specifies a nonbiological graft and ulceration to accurately assign this code.
• Distinguish from atherosclerosis of native arteries or biological grafts; different codes apply.
• Verify the affected extremity is not a lower extremity, as specific codes exist for those sites.