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Official Description

Nasal/sinus endoscopy, surgical, with maxillary antrostomy; with removal of tissue from maxillary sinus

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

A surgical nasal/sinus endoscopy is a minimally invasive procedure that allows for direct visualization and treatment of the nasal cavity and paranasal sinuses. In this specific procedure, identified by CPT® Code 31267, a maxillary antrostomy is performed, which involves creating an opening in the maxillary sinus to facilitate access. Prior to the procedure, a topical nasal decongestant and a local anesthetic, often combined with a vasoconstrictor, are applied to minimize discomfort and reduce bleeding during the surgery. An endoscope, a thin, flexible tube equipped with a camera and light source, is introduced through the nostril to inspect the nasal cavity and the paranasal sinuses for any signs of disease or abnormalities. The procedure includes the removal of the uncinate process, a small bone structure that can obstruct the natural drainage of the maxillary sinus. This is achieved by using specialized instruments such as upbiting forceps and a microdebrider to ensure that the natural maxillary sinus ostium is clearly visualized and accessible. Following the creation of the maxillary antrostomy, the procedure continues with the removal of diseased tissue from the maxillary sinus lining. This tissue, which may be inflamed or infected, is carefully excised using a microdebrider, allowing for improved drainage and function of the sinus. Overall, this procedure is aimed at alleviating symptoms associated with sinusitis and other sinus-related conditions, promoting better sinus health and function.

© Copyright 2026 Coding Ahead. All rights reserved.

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