CPT® Code 31086

The CPT® Code 31086 refers to a surgical procedure known as a nonobliterative frontal sinusotomy performed through a brow incision utilizing an osteoplastic flap. This procedure is specifically designed to access the frontal sinus, which is located behind the forehead, to treat conditions such as chronic sinusitis or other diseases affecting the sinus. The term "nonobliterative" indicates that the procedure aims to preserve the sinus's natural anatomy rather than permanently close it off. The approach begins with a seagull-shaped incision made just below the eyebrow, extending across the upper part of the nose and below the opposite eyebrow. This incision allows the surgeon to access the underlying tissues and the frontal bone. Following the incision, the surgeon elevates the soft tissues to expose the frontal bone, which is then carefully cut using an oscillating saw or drill to create an opening over the frontal sinus. The procedure involves the removal of any infected or diseased tissue, as well as the complete ablation of the mucosa lining the sinus. After the necessary tissue removal, the bone flap is repositioned and secured with plates and screws, and the soft tissues and skin are meticulously closed in layers to promote proper healing. This detailed approach ensures that the frontal sinus is adequately treated while maintaining its structural integrity.