CPT® Code 33880

Endovascular repair of descending thoracic aorta (eg, aneurysm, pseudoaneurysm, dissection, penetrating ulcer, intramural hematoma, or traumatic disruption); involving coverage of left subclavian artery origin, initial endoprosthesis plus descending thoracic aortic extension(s), if required, to level of celiac artery origin

The procedure described by CPT® Code 33880 involves the endovascular repair of the descending thoracic aorta, specifically addressing conditions such as aneurysms, pseudoaneurysms, dissections, penetrating ulcers, intramural hematomas, or traumatic disruptions. This minimally invasive technique is performed through the vascular system, utilizing a flexible guidewire and a stent-graft (endoprosthesis) to reinforce the aorta. The procedure is characterized by the coverage of the left subclavian artery origin, which is a critical anatomical landmark in the thoracic aorta. The initial placement of the endoprosthesis may be supplemented with extensions to ensure adequate coverage up to the level of the celiac artery origin, depending on the extent of the aortic pathology. The approach typically involves accessing the femoral or iliac artery, allowing for the retrograde passage of instruments into the ascending aorta, where imaging techniques such as fluoroscopy and aortography are employed to guide the procedure and assess the aneurysm. This comprehensive method aims to restore the structural integrity of the aorta while minimizing the risks associated with open surgical repair.