CPT® Code 22103

Add-On Code

Partial excision of posterior vertebral component (eg, spinous process, lamina or facet) for intrinsic bony lesion, single vertebral segment; each additional segment (List separately in addition to code for primary procedure)

The CPT® Code 22103 refers to the procedure of partial excision of a posterior vertebral component, which may include structures such as the spinous process, lamina, or facet, specifically for the treatment of an intrinsic bony lesion located within a single vertebral segment. This procedure is typically indicated when there is a need to remove a bony growth, such as a bone spur, that is causing discomfort or other complications. The process begins with the physician making an incision over the affected vertebral segment, which allows access to the underlying structures. The incision is carefully extended through the paravertebral muscles to reach the lesion. Once the lesion is exposed, the physician excises the affected portion of the vertebral segment, thereby alleviating the issue. After the excision, the incision is then closed. It is important to note that this code is specifically for the first segment treated, and additional segments that may require similar excision are coded separately, with the primary procedure being indicated by the appropriate CPT® codes for cervical, thoracic, or lumbar segments, namely codes 22100, 22101, and 22102 respectively.