CPT® Code 31205

An extranasal total ethmoidectomy, designated by CPT® Code 31205, is a surgical procedure aimed at addressing issues within the ethmoid sinus. This procedure is characterized by its approach through a lateral rhinotomy, which entails making an incision along the side of the nose. This incision allows the surgeon to access the ethmoid sinus by drilling through the bone, thereby reaching both the anterior and posterior ethmoid cells. During the procedure, the surgeon inspects the ethmoid cells for any pathological conditions, such as the presence of purulent material or mucoceles, which are fluid-filled sacs that can develop due to blockage or infection. The surgical intervention includes the evacuation of this purulent material and the removal (ablation) of the mucosa down to the underlying bone, ensuring that any diseased tissue is thoroughly addressed. In cases where the ethmoid ostium, the natural opening of the ethmoid sinus into the nasal cavity, is obstructed, the surgeon will create an additional opening to facilitate proper drainage of fluid from the ethmoid cells. This comprehensive approach aims to restore normal function and alleviate symptoms associated with ethmoid sinus conditions.