CPT® Code 91112

The procedure described by CPT® Code 91112 involves a comprehensive evaluation of gastrointestinal function, specifically focusing on gastric emptying and transit times throughout the digestive tract, from the stomach to the colon. This assessment is particularly relevant for patients who may be experiencing symptoms indicative of gastroparesis, a condition characterized by delayed gastric emptying. During the procedure, the patient ingests a wireless capsule that is designed to transmit data regarding the movement and pressure within the gastrointestinal tract. This capsule is equipped with technology that allows it to send radio signals to an external receiver and recording device, which the patient is fitted with prior to ingestion. As the capsule travels through the stomach, small intestine, and large intestine, it continuously collects and transmits data regarding various parameters, including pH levels and pressure measurements. The entire process typically takes a few days, with the capsule being naturally expelled in the stool within 2 to 5 days post-ingestion. Once the data collection is complete, the recorded information is meticulously analyzed to determine key metrics such as gastric transit time, small intestine transit time, large intestine transit time, whole gut transit time, as well as antral and duodenal pressures. The physician then reviews this data along with the software analysis to compile a detailed written report of the findings, which aids in diagnosing and managing gastrointestinal disorders.