CPT® Code 31295

Nasal/sinus endoscopy, surgical, with dilation (eg, balloon dilation); maxillary sinus ostium, transnasal or via canine fossa

Nasal/sinus endoscopy with dilation, specifically CPT® Code 31295, refers to a surgical procedure that utilizes an endoscope to perform dilation of the maxillary sinus ostium, which is the opening of the maxillary sinus. This procedure is primarily indicated for patients suffering from chronic sinusitis characterized by obstruction of the sinus ostium. The dilation process involves the use of a balloon that is inserted into the sinus ostium to expand it, thereby alleviating the blockage and restoring normal drainage of the sinus. The procedure is typically performed under local anesthesia, which may include a topical nasal decongestant and a vasoconstrictor to minimize bleeding and discomfort. The endoscope is carefully introduced through the nasal passage and navigated to the affected sinus area. In some cases, particularly for accessing the maxillary sinus, the procedure may involve puncturing the canine fossa, a specific anatomical location in the upper jaw, to facilitate access. The dilation is achieved by inflating and deflating the balloon multiple times to ensure adequate expansion of the ostium, which is then inspected through the endoscope to confirm successful dilation. This procedure is essential for improving sinus drainage and alleviating symptoms associated with chronic sinusitis.