CPT® Code 24430

The procedure described by CPT® Code 24430 pertains to the surgical repair of a nonunion or malunion of the humerus, which is the long bone of the upper arm. A nonunion occurs when the fracture fragments fail to heal together within a typical timeframe of 8 to 10 months, while a malunion refers to a situation where the fragments heal in an incorrect position, leading to potential complications. These complications can include osseous abnormalities, incongruity of articular surfaces, soft tissue contracture, and nerve impingement, which may result in pain and functional impairment. The surgical approach involves exposing the original fracture site of the humerus to assess the condition of the nonunion or malunion. The repair is performed without the use of a graft, utilizing internal fixation techniques such as a compression plate to stabilize the fracture. This method is crucial for restoring proper alignment and stability to the bone, thereby facilitating the healing process and improving the patient's overall function.