CPT® Code 42890

The procedure described by CPT® Code 42890 refers to a limited pharyngectomy, which is a surgical intervention primarily aimed at addressing malignant tumors located in the pharynx. However, it is important to note that this procedure can also be indicated for the removal of benign lesions or strictures that may obstruct normal pharyngeal function. During the operation, a horizontal incision is strategically made in the neck, specifically over the thyrohyoid membrane, to provide access to the pharyngeal area. The surgical approach involves the separation of the suprahyoid muscles from the hyoid bone laterally, allowing for better visualization and access to the pharynx. The valleculae, which are the spaces located at the base of the tongue, are entered, and the pharynx is exposed by retracting the larynx downwards and the tongue upwards. This careful manipulation enables the surgeon to identify the specific region of the pharynx that requires resection. If a lesion is present, it is excised along with a margin of healthy tissue to ensure complete removal and minimize the risk of recurrence. Following the excision, the surgical defect created in the pharynx is typically closed using sutures. In some cases, a separately reportable reconstruction may be necessary, which could involve the use of flaps or grafts to restore the integrity of the pharyngeal structure.