Esoph imped function test
Esophageal impedance function tests measuring swallowing disorders show facility charges ranging from $188 to $311 depending on care setting, making bill verification essential before treatment.
About the analyst
Priya Iyengar leads the billing code review team at BillRazor Research. She analyzes NCCI bundling edits, DRG coding, and regional rate variation. Expertise: NCCI bundling, DRG analysis, regional pricing.
This procedure measures how well food and liquid move through the esophagus by placing a thin tube with sensors down the throat to detect swallowing function. Patients with difficulty swallowing, acid reflux, or suspected esophageal motility disorders typically receive this test. CPT 91037 charges vary significantly between outpatient facilities and hospitals, with potential billing differences of $800-1,200 depending on the care setting.
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Facility rate
$188
National Medicare benchmark
Non-facility rate
$99
Office setting benchmark
Data sources
3
23 data points
Key insights for CPT 91037
Facility vs office setting
$89 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) | $188 | +90% |
| 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