CPT code 91124: Rectal physiology, sensation, tone, compliance2026 Medicare rate & RVUs in Washington, DC area

A rectal physiology study assesses sensation, tone, and compliance, typically when evaluating altered rectal function such as constipation or fecal incontinence.

CMS RVU26DEffective Oct 1, 2026One payment locality

In Washington, DC area, Medicare pays $892.25 for 91124 in the office.

$892.25Office (non-facility)
Not available in this settingHospital or facility
+16.1%vs the national office rate ($768.55)

Check a contract rate as a % of Medicare · 91124 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 91124 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Washington, DC area
  2. What 91124 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 91124 covers

This study evaluates how the rectum senses distention and responds to it, including rectal tone and compliance. Testing commonly uses controlled balloon distention to assess sensory responses and pressure changes. Gastroenterologists, colorectal specialists, or clinicians in a gastrointestinal motility service may perform it in an outpatient testing setting for patients with symptoms such as impaired evacuation or fecal incontinence.

Select 91124 when the documented service is the rectal sensation, tone, and compliance study, rather than a more comprehensive anorectal manometry service. The report should identify the testing performed and include the physiologic findings and interpretation. CMS recognizes separate professional and technical components: modifier 26 identifies the interpretation, modifier TC identifies the equipment and staff portion, and reporting without either modifier represents the global 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 Washington, DC area compares for 91124

Across 109 of 109 payment localities, the office rate for 91124 runs from $672.02 in Arkansas to $1,067.78 in San Benito County, CA. Washington, DC area pays $892.25. The RVUs are the same everywhere; the geographic indexes change the dollars.

91124 in Washington, DC area vs other payment areas
  1. Washington, DC area · this page$892.25
  2. Los Angeles, CA · California$890.92−$1.33
  3. Miami, FL · Florida$806.82−$85.43
  4. Chicago, IL · Illinois$782.08−$110.17
  5. Manhattan, NY · New York$886.19−$6.06
  6. Alaska · Alaska$859.05−$33.20
  7. Alabama · Alabama$682.95−$209.30

Other areas in District of Columbia first, then benchmark localities. Bars start at $0.

Every other payment area

91124 in every other Medicare payment locality
Payment localityOfficeFacility
ArkansasArkansas$672.02—
ArizonaArizona$747.06—
Bakersfield, CACalifornia$830.91—
Chico, CACalifornia$830.17—
El Centro, CACalifornia$830.21—
Fresno, CACalifornia$830.17—
Hanford, CACalifornia$830.17—
Madera, CACalifornia$830.17—

91124 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.

$672.02

$948.97

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

View every state and territory as a table
91124 office rate range by state
State / territoryOffice rate rangeLocalities
AK$859.051
AL$682.951
AR$672.021
AZ$747.061
CA$830.17–$1,067.7829
CO$810.371
CT$822.901
DC$892.251
DE$760.411
FL$743.24–$806.823
GA$698.76–$780.892
GU$855.791
HI$855.791
IA$708.081
ID$711.941
IL$715.33–$792.744
IN$716.651
KS$701.611
KY$694.741
LA$692.42–$730.652
MA$803.64–$899.832
MD$776.88–$892.253
ME$713.03–$759.912
MI$712.14–$750.522
MN$782.501
MO$677.38–$736.923
MS$674.991
MT$768.541
NC$721.731
ND$764.191
NE$713.221
NH$794.671
NJ$834.00–$880.972
NM$715.311
NV$767.991
NY$733.41–$905.995
OH$711.251
OK$696.371
OR$763.73–$841.492
PA$714.09–$798.842
PR$775.701
RI$791.451
SC$717.341
SD$763.681
TN$705.151
TX$708.69–$806.168
UT$728.251
VA$755.19–$892.252
VI$775.701
VT$758.331
WA$803.07–$921.972
WI$735.781
WV$685.351
WY$766.641

See 91124 in every payment locality

How the 91124 rate is calculated

Each of 91124’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 · 91124

RVUs × geographic indexes × conversion factor

Office or facility?

Work3.05

3.05 RVUs× 1.000 GPCI

Practice expense19.74

19.74 RVUs× 1.000 GPCI

Malpractice0.22

0.22 RVUs× 1.000 GPCI

Adjusted RVUs

23.0100

Conversion factor

$33.4009

Medicare rate

$768.55

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

The exact Washington, DC area inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

11,634

Code
91124
Physician work
3.05
Practice expense
19.74
Malpractice
0.22

GPCI2026.csv

39

Locality
Washington, DC area
Physician work
1.054
Practice expense
1.178
Malpractice
1.113
Office calculation for 91124 in Washington, DC area
ComponentRVULocality factorAdjusted
Physician work3.05× 1.0543.2147
Practice expense19.74× 1.17823.2537
Malpractice0.22× 1.1130.2449
Total RVUs26.7133
Conversion factor× 33.4009

Office rate, Washington, DC area$892.25

Office: (3.05 × 1.054 + 19.74 × 1.178 + 0.22 × 1.113) × $33.4009 = $892.25

Open 91124 in the RVU calculator

Payment rules and modifiers for 91124

The CMS indicators that decide how 91124 is paid alongside other services.

CMS payment indicators · 91124

Rectal physiology, sensation, tone, compliance

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

91124 without 26 · national office

$768.55

Rectal physiology, sensation, tone, compliance

91124-26 · Professional component

$163.66

Pays only the interpretation and report.

When to use modifier 26

How 91124 has changed in Washington, DC area

91124 · Office / nonfacility

$892.25

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$892.25

    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$892.25Not available in this settingRVU26D
2026-07-01$892.25Not available in this settingRVU26C
2026-04-01$892.25Not available in this settingRVU26B
2026-01-01$892.25Not 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 91124 for an earlier date of service

Where the Washington, DC area rate applies

Washington, DC area is a Medicare payment area, not a city. Our Census mapping connects it to 1 cities and communities in District of Columbia. Some span more than one payment area; confirm with the service ZIP.

  • Washington

Browse all communities in District of Columbia

91124 billing questions

How is 91124 distinguished from 91125?

91124 represents the rectal sensation, tone, and compliance study. Choose 91125 when the documented service is the broader anorectal manometry service that includes rectal sensation and balloon expulsion testing.

Can the professional and technical portions be billed separately?

Yes. Use modifier 26 for the professional interpretation or modifier TC for the technical equipment and staff portion. Without either modifier, the claim represents the global service.

What documentation supports reporting 91124?

Document the rectal physiologic testing performed, the recorded sensory or pressure findings, and the interpretation. The record should support that the service was a rectal sensation, tone, and compliance study.

Is this the same as anorectal manometry?

The services are related but not interchangeable by name alone. Select the code that matches the actual testing performed and documented, particularly whether the service includes the broader manometry and balloon expulsion assessment.

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 91124PPRRVU2026_Oct_nonQPP.csv, line 11,634 (RVU26D)
Geographic factors for Washington, DC areaGPCI2026.csv, line 39 (RVU26D)

Open CMS sourceHow we calculate rates

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