CPT® Code 21720

The procedure described by CPT® Code 21720 involves the open division of the sternocleidomastoid muscle, which is a key muscle in the neck that plays a significant role in head movement. This surgical intervention is primarily indicated for the treatment of torticollis, a condition characterized by an abnormal, asymmetrical head or neck position. Torticollis can be congenital, meaning it is present at birth, or acquired, developing later in life due to various factors. The open division aims to relieve the tension in the sternocleidomastoid muscle, thereby allowing for improved head positioning and function. The procedure entails making an incision above the medial aspect of the clavicle to access the muscle tendons, which are then carefully manipulated to alleviate the contracted state. Depending on the severity of the condition, the surgeon may perform either a unipolar or bipolar release of the muscle. The unipolar release involves addressing the muscle at one end, while the bipolar release addresses both ends of the muscle, providing a more comprehensive correction for severe cases. This procedure is performed without the application of a cast, which distinguishes it from similar procedures that may require immobilization for optimal recovery.