CPT® Code 91020

Gastric motility (manometric) studies, identified by CPT® Code 91020, are specialized diagnostic procedures aimed at assessing the motor function of the stomach and small intestine, specifically the duodenum. These studies utilize manometry, a technique that measures the pressure within the gastrointestinal tract, to evaluate how well these organs are functioning in terms of movement and contractions. The procedure involves the insertion of a catheter, which is equipped with perfusion ports and/or transducers, through the patient's nose or mouth and 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. Additionally, the patient may be asked to consume a meal during the study, enabling the assessment of pressure and contractions in response to food intake. The data collected during the procedure is recorded and analyzed by a physician, who subsequently generates a written report detailing the findings. It is important to note that while CPT® Code 91020 is used for gastric motility studies, CPT® Code 91022 is designated for duodenal motility studies, highlighting the specificity of these codes in relation to the anatomical focus of the procedure.