Athscl autol vein bypass of extrm w intrmt claud, oth extrm

This code describes the hardening and narrowing of an autologous (patient's own) vein graft used to bypass an obstructed artery in an extremity, specifically when the patient experiences intermittent claudication. This atherosclerosis is occurring in a graft that was surgically placed to improve blood flow to a limb.

Use this code when documentation confirms atherosclerosis affecting an autologous vein bypass graft in an extremity, and the patient presents with symptoms of intermittent claudication. This typically applies to grafts in the lower extremities, but the "other extremity" designation allows for less common sites. The physician's notes should clearly state the presence of atherosclerosis within the graft and the associated claudication.

• Ensure the documentation specifies an autologous vein graft, not a synthetic or other type of graft.
• Confirm the presence of intermittent claudication as a symptom; without it, a different code for atherosclerosis of the graft would be more appropriate.
• Verify the affected extremity is not otherwise specified, allowing for the "other extremity" designation.