CPT® Code 74240

Radiologic examination, upper gastrointestinal tract, including scout abdominal radiograph(s) and delayed image(s), when performed; single-contrast (eg, barium) study

A radiologic examination of the upper gastrointestinal (GI) tract, coded as CPT® 74240, is a diagnostic imaging procedure that focuses on visualizing the esophagus, stomach, and duodenum, which is the initial segment of the small intestine. This examination employs X-ray technology, utilizing indirect ionizing radiation to capture images of the body's internal structures. The process relies on the varying densities and compositions of human tissues, allowing certain X-rays to be absorbed while others pass through, ultimately producing a two-dimensional image on a detector positioned behind the area being examined. This imaging technique is particularly valuable for diagnosing a range of gastrointestinal conditions, including ulcers, tumors, inflammation, hiatal hernias, scarring, obstructions, and any abnormal positioning or configuration of the organs within the upper GI tract. Patients typically present with various symptoms that may prompt this examination, such as difficulty swallowing, chest or abdominal pain, vomiting, gastroesophageal reflux, indigestion, or the presence of blood in the stool. The procedure often commences with the acquisition of one or more anteroposterior (AP) abdominal scout films, which are taken in either an erect or supine position prior to the administration of contrast material. These initial scout images, known as KUB (kidneys, ureters, and bladder), provide a baseline view of the abdominal organs. For the single-contrast study represented by CPT® 74240, the patient ingests a barium sulfate mixture, which effectively coats the esophagus and stomach, enhancing the visibility of these structures during the X-ray examination. In contrast, a double-contrast study, coded as CPT® 74246, involves the use of both barium and air to provide a more detailed view of the upper GI tract. In some cases, glucagon may be administered to relax the muscles in the area being examined, facilitating a clearer imaging process. Fluoroscopic X-ray images are then captured and analyzed, with delayed images taken if necessary to assess the movement of the contrast material or to confirm the emptying of the stomach. It is important to note that if multiple X-ray images of the small intestine are obtained following the barium sulfate ingestion, a different code, CPT® 74248, should be utilized for that additional follow-through study.