CPT® Code 91022

Duodenal motility studies, also known as manometric studies, are specialized diagnostic procedures designed to assess the motor function of the stomach and small intestine, specifically the duodenum. These studies are crucial for understanding how well these organs are functioning in terms of movement and pressure regulation. During the procedure, a catheter equipped with perfusion ports and/or transducers is inserted through the patient's nose or mouth and advanced into the stomach or duodenum. This catheter is connected to a pump that delivers water into the stomach, allowing for the measurement of intraluminal pressure changes. A manometer is utilized to record these pressure variations, providing valuable data on the motility of the gastrointestinal tract. In some cases, the patient may consume a meal while the catheter remains in place, enabling the assessment of pressure changes and contractions in response to food intake. The collected data is then analyzed by a physician, who prepares a comprehensive written report detailing the findings of the study. It is important to note that CPT® Code 91022 specifically pertains to duodenal motility studies, while gastric motility studies are reported using CPT® Code 91020.