CPT® Code 23550

The procedure described by CPT® Code 23550 involves the open treatment of an acromioclavicular (AC) dislocation, which can be either acute or chronic in nature. An AC dislocation, commonly known as an AC separation or shoulder separation, occurs at the AC joint, a critical joint in the shoulder complex. This joint is characterized by a fibrocartilaginous meniscal disc that lies between the hyaline cartilage surfaces of the acromial process and the clavicle, providing stability and facilitating movement. The stability of the AC joint is maintained by surrounding muscles and ligaments, which can be compromised during traumatic events. Such events may include a direct impact to the shoulder or a fall onto an outstretched hand, leading to the disruption of these stabilizing structures. To confirm the diagnosis of an AC dislocation, separate radiographic imaging is typically performed. The surgical procedure involves making an incision over the AC joint, followed by debridement of the joint surfaces and repair of any torn deltotrapezial fascia. Stabilization of the joint may be achieved using various devices, such as a screw or pin, or by repositioning the coracoacromial ligament. Postoperatively, the patient is placed in a sling and given specific instructions regarding activity limitations to ensure proper healing and recovery.