CPT® Code 63042

Laminotomy (hemilaminectomy), with decompression of nerve root(s), including partial facetectomy, foraminotomy and/or excision of herniated intervertebral disc, reexploration, single interspace; lumbar

Laminotomy, specifically a hemilaminectomy, is a surgical procedure performed to relieve pressure on nerve roots in the lumbar region of the spine. This procedure is particularly indicated for patients who have previously undergone spinal surgery and require re-exploration of the lumbar disc space. The term 'laminotomy' refers to the surgical removal of a portion of the lamina, which is the bony arch of the vertebra that covers the spinal canal. In this context, a hemilaminectomy involves the removal of one side of the lamina to access the underlying structures. The procedure aims to decompress nerve roots that may be compressed due to herniated intervertebral discs, scar tissue, or bony spurs. During the operation, the surgeon may also perform a partial facetectomy, which involves the removal of a portion of the facet joint, and a foraminotomy, which is the enlargement of the foramen—the opening through which nerve roots exit the spinal column. The goal of this intervention is to alleviate pain and restore function by addressing the underlying causes of nerve root compression. The procedure is performed through a previously made incision, allowing for direct access to the affected area while minimizing additional trauma to the surrounding tissues.