CPT® Code 39000

A mediastinotomy is a surgical procedure that involves accessing the mediastinum, the central compartment of the thoracic cavity, through a cervical approach. This approach is specifically designed to explore the superior mediastinum, which is the upper part of the mediastinal space located between the lungs. The procedure may involve several key actions, including exploration of the mediastinal area, drainage of any fluid collections, removal of foreign bodies, or obtaining biopsies of tissue for diagnostic purposes. The surgical process begins with an incision made above the suprasternal notch, which is the dip at the top of the sternum, and extends between the borders of the sternocleidomastoid muscle. This incision is then deepened to reach the pretracheal fascia, which is carefully divided to allow further access. The dissection continues down to the superior mediastinum, where the area is opened and thoroughly explored. During this exploration, the surgeon may drain any accumulated fluid, remove foreign objects that may be present, or take biopsies of tissues for further examination. It is important to note that an alternative approach, referred to as a transthoracic or median sternotomy, is described under CPT® Code 39010, which involves a different incision and technique for accessing the mediastinum.