Athscl nonbiol bypass of the right leg w ulceration of calf

This code signifies hardening of the arteries (atherosclerosis) specifically affecting a synthetic bypass graft in the right leg. The condition is further complicated by the presence of an open sore or wound (ulceration) located on the calf of that same leg. This indicates a significant vascular compromise in the grafted vessel leading to tissue breakdown.

Use this code when documentation clearly states atherosclerosis involving a nonbiological (e.g., prosthetic) bypass graft in the right lower extremity, and an ulcer is present on the calf. This typically occurs in patients with a history of peripheral artery disease who have undergone bypass surgery. Supporting documentation should include operative reports, vascular studies, and wound care notes.

• Ensure the documentation specifies a nonbiological graft; biological grafts (e.g., saphenous vein) would use a different code series.
• Verify the laterality (right leg) and the specific location of the ulceration (calf) are explicitly documented.
• Always sequence this code first if it is the primary reason for the encounter, followed by codes for any underlying conditions or complications.