CPT® Code 24420

The procedure described by CPT® Code 24420 refers to osteoplasty of the humerus, which involves surgical alterations to the upper arm bone, known as the humerus. This procedure can either lengthen or shorten the bone, depending on the clinical need. In cases where shortening is required, the surgeon identifies specific sites on the humerus where cuts will be made. After making these cuts, a segment of the bone is excised, allowing the remaining sections of the humerus to be brought together. Internal fixation methods are then employed to stabilize the newly configured bone structure. Conversely, if the procedure aims to lengthen the humerus, the surgeon makes cuts in the bone and applies a distraction device. This device gradually pulls the bone apart, creating a gap where new bone tissue can form. As the distraction continues, new bone is deposited at the osteotomy site, ultimately allowing the bone to reach the desired length. Once the appropriate length is achieved, the distraction process is halted, and the bone is permitted to consolidate and heal, ensuring proper recovery and function.