CPT® Code 21181

The procedure described by CPT® Code 21181 involves the surgical reconstruction of cranial bones that have been affected by a benign tumor, such as fibrous dysplasia. This condition leads to abnormal growth and development of bone tissue, which can result in deformities or structural issues within the skull. The reconstruction process is performed through contouring, which means that the surgeon reshapes the cranial bones to restore their normal appearance and function. To access the tumor site, the physician makes several incisions in the scalp, allowing for direct visualization and manipulation of the underlying bone. During the contouring process, specialized surgical instruments such as burs, osteotomes, files, and saws are utilized to carefully reshape the cranial bone to achieve the desired contour. After the contouring is completed, the incisions are meticulously closed in layers to promote optimal healing and minimize scarring. This procedure is essential for addressing the complications associated with benign tumors of the cranial bones and restoring the structural integrity of the skull.