CPT® Code 31000

The procedure described by CPT® Code 31000 involves the lavage, or washing out, of the maxillary sinus, which is a common treatment for sinus infections. The maxillary sinuses are located within the maxilla, or cheekbone, on either side of the nose, and are among the largest of the paranasal sinuses. This procedure can be performed through two primary methods: either by puncturing the antrum of the maxillary sinus or by utilizing the natural ostium, which is the natural opening of the sinus. In the first method, a local anesthetic is typically administered to minimize discomfort during the procedure. A trocar is then used to create a puncture in the antrum, allowing for the insertion of a cannula directly into the maxillary sinus. Alternatively, if the natural ostium is used, the cannula is advanced through the middle meatus to access the maxillary ostium, where a blunt curved catheter is then inserted to facilitate the lavage. The primary goal of this procedure is to flush the infected sinus with a saline solution, effectively removing pus and mucus that may be causing symptoms of infection. This intervention is crucial for alleviating sinus pressure and promoting healing in patients suffering from sinusitis.