CPT code 51792: Urinary reflex study, reflex response testing2026 Medicare rate & RVUs in Iowa

Reports a diagnostic study of reflex pathways involved in urinary control, typically when evaluating suspected neurologic impairment affecting bladder or urethral function.

CMS RVU26DEffective Oct 1, 2026One payment locality5.5K Medicare services in 2024

In Iowa, Medicare pays $225.91 for 51792 in the office.

$225.91Office (non-facility)
Not available in this settingHospital or facility
−8.6%vs the national office rate ($247.17)

Check a contract rate as a % of Medicare · 51792 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 51792 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Iowa
  2. What 51792 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 51792 covers

A urinary reflex study evaluates the reflex response involved in urinary control, rather than simply measuring urine flow or bladder filling pressure. The clinician stimulates a relevant reflex pathway and records the physiologic response to assess neuromuscular function. Urologists and other clinicians evaluating urinary dysfunction may order the test when neurologic involvement is suspected; it is commonly performed in an office urodynamics setting by trained staff, with physician interpretation.

Select this service when the documented test is a urinary reflex study, not a cystometrogram, uroflow measurement, or sphincter electromyography study. The record should identify the reflex testing performed, the clinical indication, and the findings supporting the interpretation. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. The service may be billed globally or split into professional interpretation with modifier 26 and technical equipment and staff with modifier TC. When multiple procedures occur in one session, the highest-valued is paid in full and other procedures are subject to the standard multiple procedure reduction. Modifier 50 is inappropriate; assistant-at-surgery payment requires documented medical necessity, and co-surgeons and team surgery are not permitted.

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 Iowa compares for 51792

Across 109 of 109 payment localities, the office rate for 51792 runs from $215.17 in Arkansas to $338.80 in San Benito County, CA. Iowa pays $225.91. The RVUs are the same everywhere; the geographic indexes change the dollars.

51792 in Iowa vs other payment areas
  1. Iowa · this page$225.91
  2. Los Angeles, CA · California$284.03+$58.12
  3. Washington, DC area · District of Columbia$286.32+$60.41
  4. Miami, FL · Florida$265.28+$39.37
  5. Chicago, IL · Illinois$256.66+$30.75
  6. Manhattan, NY · New York$286.40+$60.49
  7. Alaska · Alaska$275.52+$49.61

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

Every other payment area

51792 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$218.78—
ArkansasArkansas$215.17—
ArizonaArizona$239.90—
Bakersfield, CACalifornia$265.05—
Chico, CACalifornia$264.52—
El Centro, CACalifornia$264.55—
Fresno, CACalifornia$264.52—
Hanford, CACalifornia$264.52—

51792 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.

$215.17

$301.66

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

View every state and territory as a table
51792 office rate range by state
State / territoryOffice rate rangeLocalities
AK$275.521
AL$218.781
AR$215.171
AZ$239.901
CA$264.52–$338.8029
CO$259.331
CT$265.011
DC$286.321
DE$244.241
FL$241.34–$265.283
GA$226.24–$251.832
GU$272.591
HI$272.591
IA$225.911
ID$227.421
IL$232.90–$257.854
IN$228.931
KS$224.331
KY$223.861
LA$223.32–$235.932
MA$257.32–$287.722
MD$249.46–$286.323
ME$228.36–$242.982
MI$230.14–$244.342
MN$248.651
MO$218.70–$237.343
MS$217.001
MT$247.151
NC$231.141
ND$243.401
NE$227.431
NH$254.781
NJ$268.08–$282.662
NM$231.421
NV$246.311
NY$235.03–$293.655
OH$229.381
OK$223.811
OR$244.46–$268.882
PA$230.00–$257.442
PR$249.331
RI$253.931
SC$230.631
SD$242.951
TN$225.571
TX$228.26–$258.418
UT$234.211
VA$241.81–$286.322
VI$249.331
VT$241.981
WA$256.98–$294.352
WI$234.161
WV$223.041
WY$245.521

See 51792 in every payment locality

How the 51792 rate is calculated

Each of 51792’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 · 51792

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.07

1.07 RVUs× 1.000 GPCI

Practice expense6.14

6.14 RVUs× 1.000 GPCI

Malpractice0.19

0.19 RVUs× 1.000 GPCI

Adjusted RVUs

7.4000

Conversion factor

$33.4009

Medicare rate

$247.17

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

The exact Iowa inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

6,081

Code
51792
Physician work
1.07
Practice expense
6.14
Malpractice
0.19

GPCI2026.csv

53

Locality
Iowa
Physician work
1.000
Practice expense
0.915
Malpractice
0.397
Office calculation for 51792 in Iowa
ComponentRVULocality factorAdjusted
Physician work1.07× 1.0001.0700
Practice expense6.14× 0.9155.6181
Malpractice0.19× 0.3970.0754
Total RVUs6.7635
Conversion factor× 33.4009

Office rate, Iowa$225.91

Office: (1.07 × 1 + 6.14 × 0.915 + 0.19 × 0.397) × $33.4009 = $225.91

Open 51792 in the RVU calculator

Payment rules and modifiers for 51792

The CMS indicators that decide how 51792 is paid alongside other services.

CMS payment indicators · 51792

Urinary reflex study, reflex response testing

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
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

51792 without 26 · national office

$247.17

Urinary reflex study, reflex response testing

51792-26 · Professional component

$56.11

Pays only the interpretation and report.

When to use modifier 26

How 51792 has changed in Iowa

51792 · Office / nonfacility

$225.91

Effective 2026-10-01

The base rate is $2.06 higher than on 2025-10-01, moving from $223.85 to $225.91 (0.9%).

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

    $223.85changed to$225.91

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.10 changed to 1.07
    • Practice expense RVU 6.28 changed to 6.14
    • Practice expense GPCI 0.913 changed to 0.915
    • Malpractice GPCI 0.457 changed to 0.397

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $250.42changed to$223.85

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 6.95 changed to 6.28
    • Malpractice RVU 0.17 changed to 0.19

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $246.34changed to$250.42

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $252.45changed to$246.34

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 6.91 changed to 6.95
    • Malpractice RVU 0.14 changed to 0.17
    • Practice expense GPCI 0.910 changed to 0.913
    • Malpractice GPCI 0.441 changed to 0.457
  5. January 1, 2023

    RVU23A

    $259.07changed to$252.45

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 6.98 changed to 6.91
    • Malpractice RVU 0.13 changed to 0.14
    • Practice expense GPCI 0.907 changed to 0.910
    • Malpractice GPCI 0.425 changed to 0.441

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $252.69changed to$259.07

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 6.72 changed to 6.98
    • Malpractice RVU 0.11 changed to 0.13

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $232.22changed to$252.69

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 5.83 changed to 6.72
    • Malpractice GPCI 0.424 changed to 0.425

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $216.52changed to$232.22

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 5.36 changed to 5.83
    • Malpractice GPCI 0.423 changed to 0.424

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $200.61changed to$216.52

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 4.88 changed to 5.36

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $196.67changed to$200.61

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 4.80 changed to 4.88
    • Practice expense GPCI 0.902 changed to 0.907
    • Malpractice GPCI 0.458 changed to 0.423

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $194.21changed to$196.67

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 4.76 changed to 4.80
    • Malpractice RVU 0.12 changed to 0.11
    • Practice expense GPCI 0.896 changed to 0.902
    • Malpractice GPCI 0.493 changed to 0.458

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $194.41changed to$194.21

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 4.75 changed to 4.76
    • Malpractice RVU 0.11 changed to 0.12

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $193.44changed to$194.41

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $190.50changed to$193.44

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 4.67 changed to 4.75
    • Practice expense GPCI 0.892 changed to 0.896
    • Malpractice GPCI 0.475 changed to 0.493

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $194.25changed to$190.50

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 5.14 changed to 4.67
    • Practice expense GPCI 0.887 changed to 0.892
    • Malpractice GPCI 0.456 changed to 0.475

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $194.25

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$225.91Not available in this settingRVU26D
2026-07-01$225.91Not available in this settingRVU26C
2026-04-01$225.91Not available in this settingRVU26B
2026-01-01$225.91Not available in this settingRVU26A
2025-10-01$223.85Not available in this settingRVU25D
2025-07-01$223.85Not available in this settingRVU25C
2025-04-01$223.85Not available in this settingRVU25B
2025-01-01$223.85Not available in this settingRVU25A
2024-10-01$250.42Not available in this settingRVU24D
2024-07-01$250.42Not available in this settingRVU24C
2024-04-01$250.42Not available in this settingRVU24B
2024-03-09$250.42Not available in this settingRVU24AR
2024-01-01$246.34Not available in this settingRVU24A
2023-10-01$252.45Not available in this settingRVU23D
2023-07-01$252.45Not available in this settingRVU23C
2023-04-01$252.45Not available in this settingRVU23B
2023-01-01$252.45Not available in this settingRVU23A
2022-10-01$259.07Not available in this settingRVU22D
2022-07-01$259.07Not available in this settingRVU22C
2022-04-01$259.07Not available in this settingRVU22B
2022-01-01$259.07Not available in this settingRVU22A
2021-10-01$252.69Not available in this settingRVU21D
2021-07-01$252.69Not available in this settingRVU21C
2021-04-01$252.69Not available in this settingRVU21B
2021-01-01$252.69Not available in this settingRVU21A
2020-10-01$232.22Not available in this settingRVU20D
2020-07-01$232.22Not available in this settingRVU20C
2020-04-01$232.22Not available in this settingRVU20B
2020-01-01$232.22Not available in this settingRVU20A
2019-10-01$216.52Not available in this settingRVU19D
2019-07-01$216.52Not available in this settingRVU19C
2019-04-01$216.52Not available in this settingRVU19B
2019-01-01$216.52Not available in this settingRVU19A
2018-10-01$200.61Not available in this settingRVU18D
2018-07-01$200.61Not available in this settingRVU18C
2018-04-01$200.61Not available in this settingRVU18B
2018-01-01$200.61Not available in this settingRVU18AR1
2017-10-01$196.67Not available in this settingRVU17D
2017-07-01$196.67Not available in this settingRVU17C
2017-04-01$196.67Not available in this settingRVU17B
2017-01-01$196.67Not available in this settingRVU17A
2016-10-01$194.21Not available in this settingRVU16D
2016-07-01$194.21Not available in this settingRVU16C
2016-04-01$194.21Not available in this settingRVU16B
2016-01-01$194.21Not available in this settingRVU16A
2015-10-01$194.41Not available in this settingRVU15D
2015-07-01$194.41Not available in this settingRVU15C
2015-04-01$193.44Not available in this settingRVU15B
2015-01-01$193.44Not available in this settingRVU15A
2014-10-01$190.50Not available in this settingRVU14D
2014-07-01$190.50Not available in this settingRVU14C
2014-04-01$190.50Not available in this settingRVU14B
2014-01-01$190.50Not available in this settingRVU14A
2013-10-01$194.25Not available in this settingRVU13D
2013-07-01$194.25Not available in this settingRVU13C
2013-04-01$194.25Not available in this settingRVU13B
2013-01-01$194.25Not available in this settingRVU13AR

Price 51792 for an earlier date of service

Where the Iowa rate applies

Iowa is a Medicare payment area, not a city. Our Census mapping connects it to 1026 cities and communities in Iowa. Some span more than one payment area; confirm with the service ZIP.

  • Ackley
  • Ackworth
  • Adair
  • Adel
  • Afton
  • Agency
  • Ainsworth
  • Akron

Browse all communities in Iowa

51792 billing questions

How is 51792 different from cystometry?

51792 evaluates a urinary reflex response. Cystometry codes such as 51726 measure bladder pressure during filling and related testing.

Can the professional and technical portions be billed separately?

Yes. Report modifier 26 for the professional interpretation or TC for the technical equipment and staff; without either modifier, the claim represents the global service.

Is modifier 50 appropriate?

No. CMS identifies modifier 50 as inappropriate for this service's descriptor and anatomy.

What same-day care is included in the global period?

The 0-day global period includes same-day preoperative and postoperative care.

How does the multiple procedure rule affect payment?

When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and the others are subject to the standard 50% multiple procedure reduction.

What documentation supports reporting 51792?

Document the clinical reason for reflex testing, the reflex study performed, and the recorded response and interpretation. The record should distinguish the study from pressure testing, urine-flow measurement, and sphincter EMG.

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 51792PPRRVU2026_Oct_nonQPP.csv, line 6,081 (RVU26D)
Geographic factors for IowaGPCI2026.csv, line 53 (RVU26D)

Open CMS sourceHow we calculate rates

Did this answer your question about what 51792 pays in Iowa?

Tell us what you were actually trying to work out. We’ll answer you directly, or build the page that does.

Fee sheets · Coming soon

Put 51792 and the rest of your codes on one sheet

Your codes at your locality, with payer contracts beside Medicare.

Join the waitlist