91117 Colon motility 6 hour study
Also known as: colon manometry, colonic motility, 6-hour transit study
Colon motility study performed over a 6-hour period to evaluate colonic muscle function and peristalsis.
In Plain Language
test of large bowel muscle strength; measurement of colon muscle movement
Clinical Context
Diagnostic study to assess colonic muscle contractions and peristaltic activity. Evaluates constipation, irritable bowel syndrome, and colonic inertia over extended period.
RVU Breakdown
| Work RVU | 2.39 |
| Total RVU | 2.39 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
Medicine section codes cover a wide range of non-surgical services. This code has a 0-day global period, meaning pre- and post-operative E&M visits are billable separately on the same day. Documentation should include the clinical indication, procedure details, interpretation (if applicable), and any patient-specific findings.
How This Code Compares
With a work RVU of 2.39, this code ranks in the 82nd percentile among Medicine codes — 3.1x the median (0.78). The highest wRVU in this category is 23.92.
Specialties
Frequently Asked Questions
What is CPT code 91117?
CPT 91117 (Colon motility 6 hour study) is a Medicine code. Colon motility study performed over a 6-hour period to evaluate colonic muscle function and peristalsis.
Who uses CPT code 91117?
CPT 91117 is used by Gastroenterology, Internal Medicine, Colorectal Surgery. Diagnostic study to assess colonic muscle contractions and peristaltic activity. Evaluates constipation, irritable bowel syndrome, and colonic inertia over extended period.
When is CPT 91117 used?
Diagnostic study to assess colonic muscle contractions and peristaltic activity. Evaluates constipation, irritable bowel syndrome, and colonic inertia over extended period.
Track This Code in RVU Edge
Log procedures, calculate wRVUs, and benchmark against MGMA data — all in one app.
CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.