Athscl nonbiol bypass of the left leg w ulceration of calf

This code describes a specific type of peripheral artery disease where a synthetic bypass graft in the left leg has developed atherosclerosis. This condition is further complicated by the presence of an ulcer on the calf, indicating advanced tissue damage due to impaired blood flow.

Use this code when documentation clearly indicates atherosclerosis affecting a nonbiological (e.g., synthetic) bypass graft in the left leg, specifically with an ulcer located on the calf. This typically occurs in patients with a history of peripheral bypass surgery experiencing graft failure and ischemic ulceration. Supporting documentation should include operative reports detailing the bypass, imaging confirming graft atherosclerosis, and physical exam findings describing the calf ulcer.

• Ensure the documentation specifies a nonbiological bypass graft; biological grafts would be coded differently.
• Verify the laterality (left leg) and the precise location of the ulcer (calf) are explicitly stated.
• Always sequence this code first when it represents the primary reason for the encounter, followed by codes for any associated conditions or complications.