CPT code 91132: Electrogastrography, without test2026 Medicare rate & RVUs

Electrogastrography records gastric electrical activity without a provocative test, helping evaluate patients with symptoms such as persistent nausea or vomiting.

CMS RVU26DEffective Oct 1, 2026109 payment localities29 Medicare services in 2024

Medicare pays $485.65 for 91132 nationally in the office. Local office rates run $419.23–$693.74.

Medicare rate · 91132

Electrogastrography, without test

Office or facility?

Work RVUs
0.51
Total RVUs
14.54
Global days
XXX

National rate · 2026

$485.65

Office setting, before claim adjustments.

See every locality for 91132 →Billed by an NP, PA or therapist? →

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

Your location

Medicare pays by the payment locality where the service is performed.

On this page 10 sections
  1. Medicare rate
  2. What 91132 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

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

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 payment localities

$419.23 to $693.74

$419.23$556.49$693.74
One dot per payment locality, office / nonfacility. Hover a dot to see the locality; select it to open that rate.

109 of 109 payment localities

91132 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$426.76Unavailable
Alaska$524.11Unavailable
Arizona$471.01Unavailable
Arkansas$419.23Unavailable
Atlanta, GA$493.38Unavailable
Austin, TX$512.69Unavailable
Bakersfield, CA$530.47Unavailable
Baltimore area, MD$520.29Unavailable
Beaumont, TX$443.49Unavailable
Brazoria, TX$481.36Unavailable

91132 rates by state

Office rate range in each state. Select a state to see its payment localities.

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

$419.23

$612.05

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
91132 office rate range by state
State / territoryOffice rate rangeLocalities
AK$524.111
AL$426.761
AR$419.231
AZ$471.011
CA$530.36–$693.7429
CO$515.561
CT$522.211
DC$569.921
DE$480.021
FL$465.58–$506.353
GA$435.34–$493.382
GU$549.291
HI$549.291
IA$445.301
ID$447.711
IL$445.53–$499.174
IN$451.001
KS$440.261
KY$433.661
LA$431.83–$458.202
MA$510.50–$576.952
MD$491.35–$569.923
ME$447.86–$481.072
MI$445.10–$469.972
MN$498.501
MO$421.09–$463.213
MS$420.391
MT$485.651
NC$453.961
ND$485.051
NE$449.021
NH$504.701
NJ$529.45–$561.612
NM$447.041
NV$485.951
NY$461.97–$575.985
OH$444.971
OK$435.391
OR$483.48–$537.572
PA$447.25–$505.322
PR$490.781
RI$501.301
SC$449.961
SD$484.981
TN$442.631
TX$443.49–$512.698
UT$457.491
VA$477.41–$569.922
VI$490.781
VT$480.481
WA$510.41–$592.472
WI$465.321
WV$424.821
WY$485.391

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

Office or facility?

Work0.51

0.51 RVUs× 1.000 GPCI

Practice expense14.00

14.00 RVUs× 1.000 GPCI

Malpractice0.03

0.03 RVUs× 1.000 GPCI

Adjusted RVUs

14.5400

Conversion factor

$33.4009

Medicare rate

$485.65

Every GPCI starts 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, without test

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical1Diagnostic 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, without test

91132-26 · Professional component

$27.72

Pays only the interpretation and report.

When to use modifier 26

91132 compared with similar codes

Compare codes · National

4 codes, side by side

Office or facility?

  • 91132

    Electrogastrography, without test0.51 wRVU

    $485.65

  • 91133

    Electrogastrography, with provocative test0.64 wRVU

    $508.36+$22.71

  • 91112

    Motility capsule, transit and pressure measurement2.05 wRVU

    $1,767.24+$1,281.59

  • 91117

    Colon motility, six-hour study2.39 wRVU

    Not priced

How to choose

91133ElectrogastrographyWith provocative test
Choose 91132 when the electrogastrography recording has no test or challenge component; choose 91133 when one is included.
91112Motility capsuleTransit and pressure measurement
91112 uses a wireless capsule to measure gastrointestinal transit and pressure; 91132 records gastric electrical activity through electrogastrography.
91117Colon motilitySix-hour study
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
RVUs for 91132PPRRVU2026_Oct_nonQPP.csv, line 11,640 (RVU26D)

Open CMS sourceHow we calculate rates

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