CPT® Code 31235

A diagnostic nasal endoscopy with sphenoid sinusoscopy involves the use of an endoscope to visually examine the nasal cavity and the sphenoid sinuses, which are located within the sphenoid bone at the back of the nasal cavity. This procedure is essential for identifying any diseases or abnormalities present in these areas. The sphenoid sinuses are paired structures that communicate with the upper posterior nasal cavity, specifically the sphenoethmoidal recess. During the procedure, a topical nasal decongestant may be applied to reduce swelling and improve visibility, while a local anesthetic with a vasoconstrictor is used to minimize discomfort and control bleeding. The endoscope is carefully introduced into the nasal cavity, allowing for a thorough evaluation of the nasal passages and the vomer bone, as well as the face of the sphenoid sinus. Access to the sphenoid sinus can be achieved either by enlarging and cannulating the natural ostium or through a direct puncture of the sphenoidal face, a technique known as sphenoidotomy. This examination may be enhanced by the use of a camera, which allows for real-time visualization on a video monitor, and the ability to record images for further analysis. Overall, this procedure is a critical diagnostic tool in the assessment of sinus-related conditions.