In simple words: A rigid viewing tube is inserted through the mouth to examine the esophagus and take one or more tissue samples.

This code describes a procedure where a rigid endoscope is inserted through the mouth to examine the esophagus and obtain tissue for biopsy.It includes single or multiple biopsies taken during the same procedure.

Example 1: A patient presents with difficulty swallowing. A rigid esophagoscopy is performed to evaluate the esophagus and biopsies are taken from a suspicious area to rule out esophageal cancer., A patient with Barrett's esophagus undergoes surveillance with a rigid esophagoscopy and multiple biopsies are taken from different areas of the esophagus to monitor for dysplasia., A patient experiences food impaction. During a rigid esophagoscopy, a foreign body is removed and a biopsy is taken from any inflamed or injured tissue.

Documentation should include: indication for the procedure, type of endoscope used, findings during the examination, location and number of biopsies taken, any complications encountered, and estimated blood loss.