CPT® Code 22847

Add-On Code

An anterior instrumentation procedure involves the surgical placement of devices to stabilize the spine, specifically targeting eight or more vertebral segments. This procedure is typically performed in conjunction with a spinal fusion, known as arthrodesis, which aims to correct deformities or instabilities within the spinal column. The instrumentation is applied from the anterior (front) aspect of the body, which may require incisions in various locations depending on the specific vertebral levels being addressed. These locations can include the front of the neck, the thoracic region, or the abdominal area. In some cases, an anterolateral approach may be utilized, allowing access to the spine from the side. During the procedure, the surgeon carefully retracts overlying muscles and manages blood vessels to ensure a clear view of the vertebrae. The vertebrae are then accessed and prepared for instrumentation, which may involve stripping away surrounding muscles. If necessary, a discectomy, which is the removal of intervertebral discs, may also be performed as part of the procedure. The instrumentation itself typically consists of rods, hooks, and screws that are affixed to the vertebrae to provide stability. Additionally, intervertebral cage devices may be used to enhance support. To further secure the instrumentation, bone graft material may be applied around the devices, ensuring that they are tightly packed and compressed to promote healing and stability. This code, CPT® 22847, is specifically designated for cases involving eight or more vertebral segments, distinguishing it from codes for fewer segments, such as 22845 and 22846.