Oth athscl nonaut bio bypass of the extremities, right leg

This code signifies the presence of atherosclerosis affecting a non-native biological bypass graft located in the right leg. This condition involves the hardening and narrowing of the graft due to plaque buildup, impairing blood flow to the extremity. It specifically applies when the graft material is derived from another biological source, not the patient's own tissue.

Use this code when documentation clearly indicates atherosclerosis within a biological bypass graft in the patient's right leg, and the graft is explicitly stated as nonautologous. This typically occurs in patients with peripheral artery disease who have undergone bypass surgery using a cadaveric or animal-derived graft. Supporting documentation would include operative reports, imaging studies (e.g., angiogram showing plaque in the graft), and physician notes detailing the graft type and location.

• Ensure the documentation specifies "nonautologous biological bypass graft" to differentiate from synthetic or autologous grafts.
• Verify the laterality is explicitly "right leg"; separate codes exist for the left leg or bilateral involvement.
• Do not use this code for atherosclerosis of native arteries or synthetic grafts; specific codes apply to those conditions.