CPT® Code 63252

Laminectomy for excision or occlusion of arteriovenous malformation (AVM) of the spinal cord, specifically coded as CPT® 63252, is a surgical procedure aimed at addressing a rare congenital anomaly characterized by an abnormal tangle of arteries and veins located on, in, or near the spinal cord. This condition can lead to significant complications, including the potential for oxygen deprivation to the spinal cord tissues, which may result in tissue necrosis. Additionally, the presence of an AVM can cause the rupture of fragile blood vessels or exert pressure on the spinal cord, leading to neurological deficits. During the procedure, an incision is made over the thoracolumbar region where the AVM is situated, extending down to the spinous processes. The muscles are carefully retracted to expose the lamina and facet joint. A specialized bone drill is utilized to remove part or all of the lamina, allowing for direct access to the spinal cord. Once the spinal cord is exposed, the AVM is identified, and the blood vessels supplying it are located and ligated with sutures. The AVM can then be excised or permanently occluded using sutures or clamps, effectively addressing the vascular anomaly and mitigating the associated risks.