Colon motility 6 hr study
Colon muscle movement studies range from $122.52 at Medicare facilities to $311.40 at hospital outpatient centers, with potential differences of $188.88 depending on your care setting—review your bill carefully.
About the analyst
Michael Glenn reviews CMS datasets and drug pricing at BillRazor Research. He focuses on NADAC acquisition costs and procedure coding accuracy. Expertise: drug pricing, NADAC data, CPT coding.
Code 91117 tracks a six-hour test that measures how muscles in the colon contract and move, typically ordered for patients with chronic constipation or suspected motility disorders. This procedure charges approximately 8-12x the Medicare reimbursement rate, with significant variation between outpatient facilities and hospital settings. The test requires extended monitoring time, which affects both staffing costs and billing complexity for providers.
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Facility rate
$123
National Medicare benchmark
Non-facility rate
$99
Office setting benchmark
Data sources
3
23 data points
Key insights for CPT 91117
Facility vs office setting
$24 differenceNon-facility setting is less expensive for this procedure
What this procedure costs across different settings
The same procedure can cost very different amounts depending on where it's performed. These are the Medicare-allowed amounts — what hospitals actually charge can be 3-10x higher.
| Setting | Medicare rate | vs lowest |
|---|---|---|
| Facility (physician office) | $123 | +24% |
| Non-facility (office) | $99 | Lowest |
| Outpatient (APC) | $311 | +215% |
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About this data
Rates shown are from the 2026 Medicare Physician Fee Schedule, Hospital Outpatient Prospective Payment System (OPPS), Ambulatory Surgery Center Payment System, Clinical Laboratory Fee Schedule, Durable Medical Equipment Fee Schedule, and CMS Inpatient Prospective Payment System (DRG weights). Regional adjustments use CMS Geographic Practice Cost Indices (GPCI). Hospital charges are from CMS Hospital Price Transparency machine-readable files. All data is publicly available under federal law (45 CFR Part 180).
This data is for informational purposes only and does not constitute medical or financial advice. Actual costs depend on insurance coverage, negotiated rates, and individual circumstances.
Related procedures
Related pricing data
Data: Medicare Physician Fee Schedule, CMS Inpatient PPS (IPPS), Outpatient PPS (OPPS), ASC Payment System, Clinical Lab Fee Schedule (CLFS), National Average Drug Acquisition Cost (NADAC). FY 2024 data. All publicly available from CMS.
Methodology: Facility rate applies when the procedure is performed in a hospital or ASC. Non-facility rate applies in a physician office. GPCI adjustments reflect regional cost-of-living differences.
This information is for educational purposes only and is not medical, financial, or legal advice. Actual costs depend on your insurance and provider. We recommend verifying costs directly with your provider. Full methodology · Terms of use