CPT® Code 61630

Balloon angioplasty, intracranial (CPT® Code 61630), is a minimally invasive procedure used to treat atherosclerotic stenosis within the intracranial arteries. This condition involves the narrowing of arteries in the brain due to the buildup of plaque, which can restrict blood flow and potentially lead to serious complications such as stroke. The procedure is performed percutaneously, meaning it is done through the skin with the aid of specialized instruments. Initially, the skin over the catheter access site is cleansed to prevent infection, and a local anesthetic is administered to minimize discomfort during the procedure. A small incision is made to access the blood vessel, allowing for the insertion of a needle followed by a sheath that facilitates the introduction of further instruments. A microcatheter or neurointerventional guidewire is then carefully threaded from the access artery into the carotid circulation, allowing for precise navigation to the affected intracranial artery. Once the target artery is reached, it is selectively catheterized using an arteriography catheter, which is advanced over the guide catheter wire. A diagnostic arteriography is performed to visualize the anatomy of the artery and assess the severity of the stenosis, determining whether balloon angioplasty is warranted. If indicated, the procedure involves the inflation of a balloon catheter at the site of the stenosis to dilate the narrowed artery, thereby restoring blood flow. Throughout the procedure, fluoroscopic imaging is utilized to guide the placement of the balloon and monitor the dilation process. Post-procedure angiograms are conducted to check for any immediate complications, such as thrombosis or rebound stenosis, ensuring the safety and effectiveness of the intervention.