CPT® Code 63017

Laminectomy with exploration and/or decompression of spinal cord and/or cauda equina, without facetectomy, foraminotomy or discectomy (eg, spinal stenosis), more than 2 vertebral segments; lumbar

Laminectomy, specifically referred to in CPT® Code 63017, is a surgical procedure that involves the excision of the lamina, which is the bony structure forming the posterior aspect of the vertebral arch. This procedure is primarily performed to investigate the underlying causes of back pain and to alleviate pressure on critical structures such as the spinal cord, spinal nerve roots, and the cauda equina. The cauda equina is a bundle of spinal nerves located at the lower end of the spinal cord, and its compression can lead to significant neurological deficits. During the procedure, a posterior skin incision is made over the affected area of the spine, allowing access to the lamina. The surrounding fat and muscle tissues are carefully retracted to expose the lamina, which is then excised. Additionally, the paired ligaments known as the ligamentum flavum, which connect adjacent vertebrae, are also removed to fully access the spinal canal. This exposure allows for exploration of the spinal canal and the identification of any adhesions that may be present between the dura mater and the ligamentum flavum. The surgical team meticulously dissects and frees the spinal nerve roots and/or cauda equina within the intervertebral foramen, ensuring that any impingement is resolved. It is important to note that this specific laminectomy procedure is performed on more than two contiguous vertebrae in the lumbar region. If stabilization of the spine is required, a separate arthrodesis procedure may be reported in conjunction with this laminectomy. For laminectomies involving more than two vertebral segments in the cervical and thoracic regions, different CPT codes (63015 and 63016, respectively) are utilized.