Athscl nonaut bio bypass of extrm w intrmt claud, unsp extrm

This code signifies the hardening and narrowing of a biological bypass graft, originating from a non-self source (e.g., cadaveric or animal), located in an unspecified extremity. This atherosclerosis is causing intermittent claudication, characterized by pain, cramping, or tiredness in the leg or arm muscles during exercise that is relieved by rest.

Apply this code when documentation confirms atherosclerosis affecting a nonautologous biological bypass graft in an extremity, and the patient presents with symptoms of intermittent claudication. The specific extremity (e.g., right leg, left arm) must not be specified in the medical record.

• Ensure the documentation explicitly states "nonautologous biological bypass graft" and "intermittent claudication."
• Do not use this code if the graft is autologous (from the patient's own body) or if the specific extremity is documented.
• Consider additional codes for associated conditions or complications, such as gangrene or rest pain, if present.