CPT® Code 22585

Add-On Code

Arthrodesis, anterior interbody technique, including minimal discectomy to prepare interspace (other than for decompression); each additional interspace (List separately in addition to code for primary procedure)

Arthrodesis, specifically using the anterior interbody technique, is a surgical procedure aimed at achieving spinal fusion by immobilizing a joint. This technique is particularly relevant for patients suffering from conditions such as herniated discs, lesions, or instability due to fractures and dislocations of the spine. The procedure involves accessing the spine from the front (ventral) side of the body, which allows for a direct approach to the affected vertebrae while minimizing damage to surrounding structures such as the esophagus, trachea, and thyroid. During the surgery, traction is applied to the patient's head to facilitate access and maintain alignment of the vertebrae. The process begins with a careful incision in the neck area, followed by the use of specialized instruments to hold the intervertebral muscles apart, providing a clear view of the vertebrae. A drill is then inserted into the affected vertebrae, with its positioning confirmed through X-ray imaging to ensure accuracy. The surgeon creates a groove or channel in the front of the vertebrae, which is essential for the subsequent steps of the procedure. Once the groove is established, the area between the two adjacent vertebrae is meticulously cleaned out using spring-loaded forceps equipped with a sharp blade. This step is crucial for removing any cartilage and preparing the site for the bone graft. The bone graft, which may be harvested from a donor or the patient's own hip area, is then packed into the cleaned-out space, trimmed to fit, and secured in place. As the procedure concludes, the traction on the head is gradually reduced to ensure that the bone graft remains stable. The fibrous membranes covering the deep vertebral area are sutured, a drain may be placed to prevent fluid accumulation, and the incision is closed with sutures. It is important to note that CPT® Code 22585 is specifically designated for each additional interspace involved in the procedure and can be billed in conjunction with other related codes such as 22554, 22556, or 22558.