CPT® Code 43197

Esophagoscopy, flexible, transnasal; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

A flexible transnasal esophagoscopy is a diagnostic procedure that involves the use of a flexible endoscope to visualize the esophagus. This procedure is performed by introducing the endoscope through the patient's nose, allowing for a direct view of the esophagus without the need for oral insertion. During the examination, various anatomical structures are assessed, including the velopharyngeal closure, the base of the tongue, and the hypopharynx. The motion of the vocal cords is also observed, and the pharyngeal musculature is evaluated for any abnormalities. As the endoscope is advanced to the cricopharyngeus, the patient may be instructed to burp or swallow, which aids in the smooth passage of the scope into the esophagus. The procedure allows for a thorough examination of the entire length of the esophagus, extending to the gastroesophageal junction. Any abnormalities detected during the procedure are carefully noted. Additionally, if necessary, tissue samples can be collected through brushing or by washing saline fluid into the esophagus, which is then retrieved for further analysis. This procedure is classified as a separate procedure, emphasizing its diagnostic nature and the specific techniques employed during the examination.