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Official Description

Nasal/sinus endoscopy, diagnostic; with maxillary sinusoscopy (via inferior meatus or canine fossa puncture)

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

A diagnostic nasal endoscopy with maxillary sinusoscopy via inferior meatus or canine fossa puncture is a procedure that allows for the examination of the nasal cavity and the maxillary sinuses. The maxillary sinuses, which are the largest of the paranasal sinuses, are situated on either side of the nose within the body of the maxilla, the upper jawbone. The inferior meatus is one of the four main passages in the nasal cavity, located just beneath the inferior concha, which is a bony structure that helps to filter and humidify the air we breathe. The canine fossa, on the other hand, is a specific anatomical area characterized by a depression at the front of the maxilla, positioned below the infraorbital opening and adjacent to the canine tooth socket. During this procedure, a topical nasal decongestant may be applied to reduce swelling and facilitate easier access to the nasal passages. Additionally, a local anesthetic combined with a vasoconstrictor may be utilized to minimize discomfort and control bleeding. The procedure involves puncturing the inferior meatus of the nasal cavity or inserting a trocar through the anterior face of the maxilla at the canine fossa. Once access is achieved, an endoscope is introduced, allowing the physician to visually inspect the nasal cavity and the maxillary sinus for any signs of disease or abnormalities. This endoscopic examination can be enhanced by the use of a camera, which captures images that can be displayed on a video monitor, recorded on a VCR, or saved digitally for further analysis and documentation.

© Copyright 2026 Coding Ahead. All rights reserved.

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