With the information given these appear to be the correct codes. But review the following lay terms and clinical responsibilities to help you decide as the documentation is slim. You may need to query the physician for clarification. I also included a link to a PowerPoint that might prove helpful in determining aorto-uni-iliac vs aorto-bi-iliac.
https://slideplayer.com/slide/6853911/
Make sure to check the NCCI edits for the codes you pick, right now 34713 and 34812 would need modifiers.
34703 Lay Terms:
The provider places an aorto–uni–iliac endograft (a tube graft that extends from inside the aorta down one limb of the iliac arteries) to repair the infrarenal aorta or iliac artery for reasons other than rupture or injury. This code covers pre–procedure sizing and device selection, any nonselective catheterization, angioplasty/stenting, any endograft extensions performed from the renal arteries to the iliac bifurcation and all radiological supervision and interpretation.
Clinical Responsibility
The provider may perform endovascular repair when the infrarenal aorta develops an aneurysm (bulging of the arterial wall due to a weakening of the artery walls), pseudoaneurysm, or for a penetrating ulcer or dissection (linear tear in the intima, or lining, of the arterial wall).
After the patient is appropriately prepped and anesthetized, the provider makes an incision in the groin and dissects down to expose the aorta and iliac arteries. He may perform angioplasty or place a stent to open up or widen the lumen of the aorta or iliac arteries. Then, under imaging guidance, he inserts a catheter into the artery and threads it all the way to the site of the aneurysm, pseudoaneurysm, dissection, or penetrating ulcer. The provider then guides a tube endograft through the catheter, inserting one end into the aorta and the other down one the iliac arteries so that the tube extends into healthy areas on both sides of the defect. If the tube endograft isn’t long enough, he may add extensions up the aorta as far as the renal arteries and down as far as the iliac bifurcation where the common iliac arteries branch into the smaller internal and external iliac arteries. When expanded, the prosthesis reinforces the artery walls, preventing the aneurysm from rupturing or swelling and improving blood flow. The provider withdraws the catheter, checks for bleeding, and closes all incisions.
34705 Lay Terms:
The provider places an aorto–bi–iliac endograft (a Y–shaped tube graft that extends from inside the aorta down both iliac arteries) to repair the infrarenal aorta or iliac artery for reasons other than rupture or injury. This code covers pre–procedure sizing and device selection, any nonselective catheterization, angioplasty/stenting, any endograft extensions performed from the renal arteries to the iliac bifurcation and all radiological supervision and interpretation.
Clinical Responsibility
The provider may perform endovascular repair when the infrarenal aorta develops an aneurysm (bulging of the arterial wall due to a weakening of the artery walls), pseudoaneurysm, or for a penetrating ulcer or dissection (linear tear in the intima, or lining, of the arterial wall).
After the patient is appropriately prepped and anesthetized, the provider makes an incision in the groin and dissects down to expose the aorta and iliac arteries. He may perform angioplasty or place a stent to open up or widen the lumen of the aorta or iliac arteries. Then, under imaging guidance, he inserts a catheter into the aorta. The provider then guides a Y–shaped tube endograft through the catheter, inserting the single end into the aorta and each arm of the Y down an iliac artery so that the tube extends into healthy areas on both sides of the defect. If the tube endograft isn’t long enough, the provider may place extensions up the aorta to the level of the renal arteries and down to the iliac bifurcation where the common iliac arteries branch into the smaller internal and external iliac arteries. When expanded, the prosthesis reinforces the artery walls, preventing the aneurysm from rupturing or swelling and improving blood flow. The provider withdraws the catheter, checks for bleeding, and closes all incisions.