CPT code 91125: Anorectal testing, manometry with sensory testing2026 Medicare rate & RVUs in Montana

Reports anorectal pressure testing combined with rectal sensory assessment and balloon expulsion, commonly used to evaluate constipation, defecatory difficulty, or fecal incontinence.

CMS RVU26DEffective Oct 1, 2026One payment locality

In Montana, Medicare pays $347.36 for 91125 in the office.

$347.36Office (non-facility)
Not available in this settingHospital or facility
−0.0%vs the national office rate ($347.37)

Check a contract rate as a % of Medicare · 91125 nationwide

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

We’ll open 91125 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Montana
  2. What 91125 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 91125 covers

This study assesses anorectal function using a pressure-sensing catheter and rectal balloon testing. It evaluates anal sphincter pressures and coordination along with rectal sensory responses and the ability to expel a balloon. Gastroenterologists, colorectal specialists, and motility teams commonly perform it in an outpatient motility laboratory for patients with persistent constipation, suspected outlet dysfunction, or fecal incontinence.

Report 91125 when the service includes the combined anorectal manometry, sensory assessment, and balloon expulsion evaluation; document the test elements performed and relevant findings. The global service includes the professional interpretation and the technical work, equipment, and staff. When those portions are billed separately, modifier 26 identifies the interpretation and modifier TC identifies the technical service.

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.

How Montana compares for 91125

Across 109 of 109 payment localities, the office rate for 91125 runs from $309.15 in Arkansas to $465.82 in San Benito County, CA. Montana pays $347.36. The RVUs are the same everywhere; the geographic indexes change the dollars.

91125 in Montana vs other payment areas
  1. Montana · this page$347.36
  2. Los Angeles, CA · California$395.19+$47.83
  3. Washington, DC area · District of Columbia$397.65+$50.29
  4. Miami, FL · Florida$366.36+$19.00
  5. Chicago, IL · Illinois$356.61+$9.25
  6. Manhattan, NY · New York$397.21+$49.85
  7. Alaska · Alaska$406.26+$58.90

Other areas in Montana first, then benchmark localities. Bars start at $0.

Every other payment area

91125 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$313.47—
ArkansasArkansas$309.15—
ArizonaArizona$338.75—
Bakersfield, CACalifornia$371.01—
Chico, CACalifornia$370.41—
El Centro, CACalifornia$370.44—
Fresno, CACalifornia$370.41—
Hanford, CACalifornia$370.41—

91125 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.

$309.15

$418.12

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

View every state and territory as a table
91125 office rate range by state
State / territoryOffice rate rangeLocalities
AK$406.261
AL$313.471
AR$309.151
AZ$338.751
CA$370.41–$465.8229
CO$363.301
CT$369.731
DC$397.651
DE$344.231
FL$339.16–$366.363
GA$321.30–$352.812
GU$379.441
HI$379.441
IA$322.571
ID$324.261
IL$328.68–$359.174
IN$326.091
KS$320.411
KY$318.971
LA$318.21–$333.302
MA$360.99–$399.232
MD$350.82–$397.653
ME$325.10–$343.012
MI$326.22–$342.462
MN$350.671
MO$312.51–$335.313
MS$310.931
MT$347.361
NC$328.471
ND$344.001
NE$324.471
NH$356.971
NJ$374.67–$393.682
NM$327.641
NV$346.671
NY$333.11–$405.545
OH$325.531
OK$319.191
OR$344.68–$375.282
PA$326.43–$360.402
PR$350.051
RI$356.771
SC$327.401
SD$343.601
TN$321.851
TX$324.33–$361.498
UT$331.701
VA$341.42–$397.652
VI$350.051
VT$342.051
WA$360.51–$407.932
WI$332.881
WV$316.871
WY$345.891

See 91125 in every payment locality

How the 91125 rate is calculated

Each of 91125’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 · 91125

RVUs × geographic indexes × conversion factor

Office or facility?

Work2.70

2.70 RVUs× 1.000 GPCI

Practice expense7.53

7.53 RVUs× 1.000 GPCI

Malpractice0.17

0.17 RVUs× 1.000 GPCI

Adjusted RVUs

10.4000

Conversion factor

$33.4009

Medicare rate

$347.37

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact Montana inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

11,637

Code
91125
Physician work
2.70
Practice expense
7.53
Malpractice
0.17

GPCI2026.csv

71

Locality
Montana
Physician work
1.000
Practice expense
1.000
Malpractice
0.998
Office calculation for 91125 in Montana
ComponentRVULocality factorAdjusted
Physician work2.70× 1.0002.7000
Practice expense7.53× 1.0007.5300
Malpractice0.17× 0.9980.1697
Total RVUs10.3997
Conversion factor× 33.4009

Office rate, Montana$347.36

Office: (2.7 × 1 + 7.53 × 1 + 0.17 × 0.998) × $33.4009 = $347.36

Open 91125 in the RVU calculator

Payment rules and modifiers for 91125

The CMS indicators that decide how 91125 is paid alongside other services.

CMS payment indicators · 91125

Anorectal testing, manometry with sensory testing

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

91125 without 26 · national office

$347.37

Anorectal testing, manometry with sensory testing

91125-26 · Professional component

$142.29

Pays only the interpretation and report.

When to use modifier 26

How 91125 has changed in Montana

91125 · Office / nonfacility

$347.36

Effective 2026-10-01

A rate is unavailable in one of these releases, so a change cannot be calculated.

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release
  1. January 1, 2026

    RVU26A

    No ratechanged to$347.36

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D, RVU17A, RVU17B, RVU17C, RVU17D, RVU18AR1, RVU18B, RVU18C, RVU18D, RVU19A, RVU19B, RVU19C, RVU19D, RVU20A, RVU20B, RVU20C, RVU20D, RVU21A, RVU21B, RVU21C, RVU21D, RVU22A, RVU22B, RVU22C, RVU22D, RVU23A, RVU23B, RVU23C, RVU23D, RVU24A, RVU24AR, RVU24B, RVU24C, RVU24D, RVU25A, RVU25B, RVU25C, RVU25D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$347.36Not available in this settingRVU26D
2026-07-01$347.36Not available in this settingRVU26C
2026-04-01$347.36Not available in this settingRVU26B
2026-01-01$347.36Not available in this settingRVU26A
2025-10-01Not in this releaseNot in this releaseRVU25D
2025-07-01Not in this releaseNot in this releaseRVU25C
2025-04-01Not in this releaseNot in this releaseRVU25B
2025-01-01Not in this releaseNot in this releaseRVU25A
2024-10-01Not in this releaseNot in this releaseRVU24D
2024-07-01Not in this releaseNot in this releaseRVU24C
2024-04-01Not in this releaseNot in this releaseRVU24B
2024-03-09Not in this releaseNot in this releaseRVU24AR
2024-01-01Not in this releaseNot in this releaseRVU24A
2023-10-01Not in this releaseNot in this releaseRVU23D
2023-07-01Not in this releaseNot in this releaseRVU23C
2023-04-01Not in this releaseNot in this releaseRVU23B
2023-01-01Not in this releaseNot in this releaseRVU23A
2022-10-01Not in this releaseNot in this releaseRVU22D
2022-07-01Not in this releaseNot in this releaseRVU22C
2022-04-01Not in this releaseNot in this releaseRVU22B
2022-01-01Not in this releaseNot in this releaseRVU22A
2021-10-01Not in this releaseNot in this releaseRVU21D
2021-07-01Not in this releaseNot in this releaseRVU21C
2021-04-01Not in this releaseNot in this releaseRVU21B
2021-01-01Not in this releaseNot in this releaseRVU21A
2020-10-01Not in this releaseNot in this releaseRVU20D
2020-07-01Not in this releaseNot in this releaseRVU20C
2020-04-01Not in this releaseNot in this releaseRVU20B
2020-01-01Not in this releaseNot in this releaseRVU20A
2019-10-01Not in this releaseNot in this releaseRVU19D
2019-07-01Not in this releaseNot in this releaseRVU19C
2019-04-01Not in this releaseNot in this releaseRVU19B
2019-01-01Not in this releaseNot in this releaseRVU19A
2018-10-01Not in this releaseNot in this releaseRVU18D
2018-07-01Not in this releaseNot in this releaseRVU18C
2018-04-01Not in this releaseNot in this releaseRVU18B
2018-01-01Not in this releaseNot in this releaseRVU18AR1
2017-10-01Not in this releaseNot in this releaseRVU17D
2017-07-01Not in this releaseNot in this releaseRVU17C
2017-04-01Not in this releaseNot in this releaseRVU17B
2017-01-01Not in this releaseNot in this releaseRVU17A
2016-10-01Not in this releaseNot in this releaseRVU16D
2016-07-01Not in this releaseNot in this releaseRVU16C
2016-04-01Not in this releaseNot in this releaseRVU16B
2016-01-01Not in this releaseNot in this releaseRVU16A
2015-10-01Not in this releaseNot in this releaseRVU15D
2015-07-01Not in this releaseNot in this releaseRVU15C
2015-04-01Not in this releaseNot in this releaseRVU15B
2015-01-01Not in this releaseNot in this releaseRVU15A
2014-10-01Not in this releaseNot in this releaseRVU14D
2014-07-01Not in this releaseNot in this releaseRVU14C
2014-04-01Not in this releaseNot in this releaseRVU14B
2014-01-01Not in this releaseNot in this releaseRVU14A
2013-10-01Not in this releaseNot in this releaseRVU13D
2013-07-01Not in this releaseNot in this releaseRVU13C
2013-04-01Not in this releaseNot in this releaseRVU13B
2013-01-01Not in this releaseNot in this releaseRVU13AR

Price 91125 for an earlier date of service

Where the Montana rate applies

Montana is a Medicare payment area, not a city. Our Census mapping connects it to 497 cities and communities in Montana. Some span more than one payment area; confirm with the service ZIP.

  • Absarokee
  • Acton
  • Alberton
  • Alder
  • Alzada
  • Amsterdam
  • Anaconda-Deer Lodge County
  • Antelope

Browse all communities in Montana

91125 billing questions

When should 91125 be selected instead of 91122?

Use 91125 for the combined anorectal pressure, sensory, and balloon expulsion assessment. Use 91122 when the documented service is anorectal manometry without that combined testing.

Are sensory testing and balloon expulsion included?

They are part of the combined service represented by 91125. Document the elements performed and avoid reporting those elements again as separate services from the same test.

How are the professional and technical portions reported?

Report the global service without a component modifier. Use modifier 26 for the professional interpretation or modifier TC for the technical work, equipment, and staff when the portions are billed separately.

What documentation supports 91125?

Record the reason for testing, the anorectal measurements and sensory assessment performed, balloon expulsion results, and the interpreting clinician's findings.

Is 91125 appropriate for constipation alone?

The symptom alone does not establish the service. The record should show that the combined anorectal manometry, sensory assessment, and balloon expulsion evaluation was performed.

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 91125PPRRVU2026_Oct_nonQPP.csv, line 11,637 (RVU26D)
Geographic factors for MontanaGPCI2026.csv, line 71 (RVU26D)

Open CMS sourceHow we calculate rates

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