CPT® Code 75705

The procedure described by CPT® Code 75705 refers to selective spinal angiography, which is a specialized imaging technique used to visualize the blood vessels supplying the spine and spinal cord. This procedure involves the use of a radiopaque contrast medium, which is a substance that enhances the visibility of internal structures during imaging. The primary goal of selective spinal angiography is to assess blood flow to the spine, which can be critical in diagnosing various conditions such as arteriovenous malformations—abnormal connections between arteries and veins that can disrupt normal blood flow—and primary metastatic tumors that may affect the vertebral bodies. The procedure is performed under fluoroscopy, a real-time imaging technique that allows for continuous visualization of the catheter's placement and the flow of contrast medium. The process begins with the insertion of a large bore needle into a blood vessel in the groin, followed by the introduction of a guidewire and catheter into the aorta. The catheter is then navigated to specific paired spinal arteries, including those above and below the diaphragm, where contrast medium is injected to obtain detailed X-ray images. The radiologist oversees the entire procedure, interprets the findings, and provides a comprehensive written report, which is essential for further clinical decision-making.