Billing code 91132: ElectrogastrographyMedicare rate & RVUs in Oregon
Electrogastrography records gastric electrical activity without a provocative test, helping evaluate patients with symptoms such as persistent nausea or vomiting.
Medicare pays $483.48–$537.57 for 91132 in the office in Oregon, from Rest Of Oregon to Portland. Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 91132 covers
Electrogastrography uses sensors placed on the abdominal skin to record the stomach’s electrical activity. A gastroenterologist or other qualified clinician may order it when evaluating upper gastrointestinal symptoms, including persistent nausea or vomiting, and possible abnormalities in gastric electrical rhythms. The study is noninvasive and may be performed in an outpatient setting. This code distinguishes a recording without a test or challenge from the related service that includes one.
Report 91132 for the electrogastrography service without a provocative test; documentation should identify the recording performed and support that no test component was included. CMS recognizes separately priced professional and technical components: modifier 26 identifies the interpretation, modifier TC identifies the equipment and staff, and an unmodified claim represents the global service. The record should support the portion billed, including the interpreting clinician’s report for the professional component or the technical resources furnished for the technical component.
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
Where 91132 pays more and less in Oregon
| Payment locality | Office | Facility |
|---|---|---|
| Portland | $537.57 | Unavailable |
| Rest Of Oregon | $483.48 | Unavailable |
How the 91132 rate is calculated
Each of 91132’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · 91132
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 0.51Practice expense 14.00Malpractice 0.03
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 91132
The CMS indicators that decide how 91132 is paid alongside other services.
CMS payment indicators · 91132
Electrogastrography
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
91132 without 26 · national office
$485.65
Electrogastrography
91132-26 · Professional component
$27.72
Pays only the interpretation and report.
91132 compared with similar codes
Compare codes
91132 vs 91133 vs 91112 vs 91117: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 91133Electrogastrography
- Choose 91132 when the electrogastrography recording has no test or challenge component; choose 91133 when one is included.
- 91112Motility capsule
- 91112 uses a wireless capsule to measure gastrointestinal transit and pressure; 91132 records gastric electrical activity through electrogastrography.
- 91117Colon motility
- 91117 evaluates colonic motility, while 91132 records electrical activity of the stomach.
91132 billing questions
How does 91132 differ from 91133?
91132 is for electrogastrography without a test or challenge. Use 91133 when the study includes a test component, such as a meal challenge.
Which modifier identifies the interpretation?
Append modifier 26 when billing only the professional interpretation. The interpreting clinician’s report should document the results.
When is modifier TC appropriate?
Use modifier TC when billing only the technical portion, including the equipment and staff. An unmodified claim represents the global service.
Can the professional and technical portions be billed separately?
Yes. CMS separately prices the 26 and TC components; the global service is billed without either modifier.
What documentation distinguishes this code from a challenged study?
Document the electrogastrography recording and whether a test or challenge was included. A study with a test component belongs to 91133 rather than 91132.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
Show the CMS file lines behind this rate
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