CPT® Code 43254

Esophagogastroduodenoscopy (EGD) is a diagnostic and therapeutic procedure that involves the use of a flexible endoscope to visualize the upper gastrointestinal tract, which includes the esophagus, stomach, and duodenum. This procedure is particularly significant when it comes to addressing dysplastic or precancerous lesions, as well as small, early-stage cancerous lesions that are confined to the mucosal layer of these organs. The flexible endoscope is introduced through the mouth, allowing for a comprehensive examination of the velopharyngeal closure, the base of the tongue, and the hypopharynx. During the procedure, the physician assesses vocal cord motion and evaluates the pharyngeal musculature. As the endoscope is advanced, the patient may be instructed to perform actions such as burping or swallowing to facilitate the passage of the scope through the cricopharyngeus muscle. This careful maneuvering allows the endoscope to traverse the entire length of the esophagus, where any abnormalities can be identified. Once the endoscope reaches the stomach and duodenum, the mucosal surfaces are meticulously inspected. If a mucosal lesion is detected, the procedure can transition into an endoscopic mucosal resection (EMR), which involves marking the lesion's borders with electrocautery, injecting diluted adrenaline to separate the lesion from the underlying tissue, and ultimately excising the lesion using a snare. This combination of diagnostic and therapeutic techniques makes EGD with EMR a vital procedure in the management of upper gastrointestinal tract lesions.