CPT® Code 21198

The procedure described by CPT® Code 21198 refers to a segmental osteotomy of the mandible, which is a surgical intervention aimed at correcting a specific localized deformity of the lower jawbone, known as the mandible. In this procedure, the physician makes an incision directly over the area where the deformity is present. This incision allows the physician to carefully reflect the surrounding soft tissue, thereby exposing the underlying bone segment that requires correction. The surgical tools utilized in this process include saws, drills, and osteotomes, which are specialized instruments designed for cutting and shaping bone. The physician removes the deformed segment of bone to restore proper alignment and function of the mandible. After the removal of the bone segment, the mandible is stabilized using various fixation methods, which may include wires, screws, metal plates, or an acrylic splint to ensure that the bone heals in the correct position. Finally, all incisions made during the procedure are meticulously closed to promote healing and minimize scarring.