© Copyright 2025 American Medical Association. All rights reserved.
The CPT® Code 91117 refers to a colon motility (manometric) study that involves a minimum of six hours of continuous recording, which may include various provocation tests such as a meal, intracolonic balloon distension, and pharmacologic agents if performed. This diagnostic procedure is primarily utilized to evaluate patients experiencing severe constipation, particularly to ascertain whether the underlying cause is due to colonic inertia. During the manometric study, a specialized thin probe equipped with multiple microsensors and a small balloon is inserted into the rectum and advanced into the colon. This probe is connected to a computerized device that meticulously records the muscle and nerve activity within the colon as it is maneuvered through the intestinal tract. The data collected during the procedure is graphically represented on a computer monitor, allowing for real-time observation of colonic contractions. To further assess colonic function, a series of provocation tests are conducted. For instance, the patient may be administered a 1000-calorie meal, after which muscle tone and sensory changes are monitored over a period of one hour or more. Additionally, the intracolonic balloon distension test is performed, which involves the inflation and deflation of the balloon with small amounts of air multiple times to evaluate the muscle responses of the colon. In some cases, a pharmacologic agent may be introduced to stimulate colon contractions, with the corresponding muscle and nerve activity being recorded. Upon completion of the study, the manometry probe, along with its sensors and balloon, is carefully removed. The physician then analyzes the recorded data and provides a comprehensive written interpretation of the findings, which is essential for determining the appropriate clinical management of the patient’s condition.
© Copyright 2025 Coding Ahead. All rights reserved.
The colon motility (manometric) study, as described by CPT® Code 91117, is indicated for patients presenting with severe constipation. This procedure is particularly relevant for evaluating whether the constipation is due to colonic inertia, a condition where the colon does not function properly to move stool through the digestive tract. The study helps in diagnosing underlying motility disorders that may contribute to the patient's symptoms.
The colon motility study involves several detailed procedural steps to ensure accurate measurement and recording of colonic activity. Initially, a thin manometry probe, which is equipped with multiple microsensors and a small balloon, is inserted into the rectum. The probe is then carefully advanced into the colon, allowing for the assessment of muscle and nerve activity throughout the intestinal tract. This probe is connected to a computerized device that continuously records the data as it is advanced.
After the completion of the colon motility study, patients may experience some temporary discomfort due to the insertion of the probe. However, there are typically no significant post-procedure care requirements. The physician will analyze the recorded data and provide a written interpretation of the findings, which will be essential for determining the next steps in the patient's management plan. Patients may be advised to resume their normal activities unless otherwise instructed by their healthcare provider.
Short Descr | COLON MOTILITY 6 HR STUDY | Medium Descr | COLON MOTILITY STDY MIN 6 HR CONT RECORD W/I&R | Long Descr | Colon motility (manometric) study, minimum 6 hours continuous recording (including provocation tests, eg, meal, intracolonic balloon distension, pharmacologic agents, if performed), with interpretation and report | Status Code | Active Code | Global Days | 000 - Endoscopic or Minor Procedure | PC/TC Indicator (26, TC) | 0 - Physician Service Code | Multiple Procedures (51) | 0 - No payment adjustment rules for multiple procedures apply. | Bilateral Surgery (50) | 0 - 150% payment adjustment for bilateral procedures does NOT apply. | Physician Supervisions | 09 - Concept does not apply. | Assistant Surgeon (80, 82) | 0 - Payment restriction for assistants at surgery applies to this procedure... | Co-Surgeons (62) | 0 - Co-surgeons not permitted for this procedure. | Team Surgery (66) | 0 - Team surgeons not permitted for this procedure. | Diagnostic Imaging Family | 99 - Concept Does Not Apply | APC Status Indicator | Procedure or Service, Multiple Reduction Applies | Type of Service (TOS) | 1 - Medical Care | Berenson-Eggers TOS (BETOS) | P6C - Minor procedures - other (Medicare fee schedule) | MUE | 1 | CCS Clinical Classification | 97 - Other gastrointestinal diagnostic procedures |
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2013-01-01 | Changed | Guideline information changed. |
2011-01-01 | Added | Added |