Athscl nonbiol bypass of the extrm w rest pain, bi legs

This code signifies the hardening and narrowing of a non-biological (synthetic) bypass graft in both lower extremities, leading to ischemic rest pain. This condition indicates severe peripheral artery disease where the grafted vessels are failing, causing pain even at rest due to insufficient blood flow.

Apply this code when documentation confirms atherosclerosis affecting synthetic bypass grafts in both legs, and the patient experiences pain while at rest. This typically occurs in patients with a history of peripheral bypass surgery who are now presenting with critical limb ischemia.

• Ensure documentation explicitly states "non-biological" or "synthetic" graft; otherwise, a different code for native vessel atherosclerosis may be appropriate.
• Verify that rest pain is clearly documented, as other codes exist for claudication or unspecified pain.
• Confirm laterality as "bilateral legs" is a specific requirement for this code.