CPT code 51741: Uroflowmetry, complex electronic flow study2026 Medicare rate & RVUs in Iowa

Reports calibrated electronic measurement of urinary flow during voiding, commonly used to evaluate lower urinary tract symptoms and suspected bladder outlet obstruction.

CMS RVU26DEffective Oct 1, 2026One payment locality321.6K Medicare services in 2024

In Iowa, Medicare pays $14.02 for 51741 in the office.

$14.02Office (non-facility)
Not available in this settingHospital or facility
−8.7%vs the national office rate ($15.36)

Check a contract rate as a % of Medicare · 51741 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 51741 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Iowa
  2. What 51741 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 51741 covers

The patient voids into calibrated electronic equipment that records the flow pattern over time and related measurements, such as flow rate and voided volume. Urology practices commonly use the test when evaluating symptoms such as a weak stream, hesitancy, or incomplete emptying, including in patients with suspected bladder outlet obstruction. Staff may operate the equipment, with a qualified practitioner interpreting the results. Unlike pressure testing, this measurement records urine flow during voiding rather than bladder pressure.

Report 51741 for the complex electronic flow study, rather than the simple flow measurement represented by 51736. Documentation should support the indication, the test performed, the recorded results, and the interpretation. The service has professional and technical components: report modifier 26 for the interpretation, modifier TC for equipment and staff, or no component modifier for the global service. 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.

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 51741

Across 109 of 109 payment localities, the office rate for 51741 runs from $13.65 in Arkansas to $19.36 in San Benito County, CA. Iowa pays $14.02. The RVUs are the same everywhere; the geographic indexes change the dollars.

51741 in Iowa vs other payment areas
  1. Iowa · this page$14.02
  2. Los Angeles, CA · California$16.85+$2.83
  3. Washington, DC area · District of Columbia$17.33+$3.31
  4. Miami, FL · Florida$17.25+$3.23
  5. Chicago, IL · Illinois$16.75+$2.73
  6. Manhattan, NY · New York$17.72+$3.70
  7. Alaska · Alaska$18.32+$4.30

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

Every other payment area

51741 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$13.84—
ArkansasArkansas$13.65—
ArizonaArizona$14.95—
Bakersfield, CACalifornia$15.91—
Chico, CACalifornia$15.83—
El Centro, CACalifornia$15.83—
Fresno, CACalifornia$15.83—
Hanford, CACalifornia$15.83—

51741 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.

$13.65

$18.32

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

View every state and territory as a table
51741 office rate range by state
State / territoryOffice rate rangeLocalities
AK$18.321
AL$13.841
AR$13.651
AZ$14.951
CA$15.83–$19.3629
CO$15.771
CT$16.361
DC$17.331
DE$15.191
FL$15.49–$17.253
GA$14.62–$15.722
GU$16.131
HI$16.131
IA$14.021
ID$14.141
IL$15.17–$16.754
IN$14.221
KS$14.031
KY$14.321
LA$14.32–$14.992
MA$15.71–$17.172
MD$15.44–$17.333
ME$14.29–$14.922
MI$14.74–$15.752
MN$14.911
MO$14.14–$14.953
MS$13.901
MT$15.361
NC$14.421
ND$14.771
NE$14.071
NH$15.601
NJ$16.49–$17.182
NM$14.851
NV$15.211
NY$14.63–$18.235
OH$14.621
OK$14.211
OR$15.03–$16.162
PA$14.60–$16.022
PR$15.441
RI$15.651
SC$14.551
SD$14.701
TN$14.111
TX$14.51–$15.778
UT$14.741
VA$14.92–$17.332
VI$15.441
VT$14.781
WA$15.66–$17.442
WI$14.311
WV$14.661
WY$15.101

See 51741 in every payment locality

How the 51741 rate is calculated

Each of 51741’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 · 51741

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.17

0.17 RVUs× 1.000 GPCI

Practice expense0.26

0.26 RVUs× 1.000 GPCI

Malpractice0.03

0.03 RVUs× 1.000 GPCI

Adjusted RVUs

0.4600

Conversion factor

$33.4009

Medicare rate

$15.36

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

6,072

Code
51741
Physician work
0.17
Practice expense
0.26
Malpractice
0.03

GPCI2026.csv

53

Locality
Iowa
Physician work
1.000
Practice expense
0.915
Malpractice
0.397
Office calculation for 51741 in Iowa
ComponentRVULocality factorAdjusted
Physician work0.17× 1.0000.1700
Practice expense0.26× 0.9150.2379
Malpractice0.03× 0.3970.0119
Total RVUs0.4198
Conversion factor× 33.4009

Office rate, Iowa$14.02

Office: (0.17 × 1 + 0.26 × 0.915 + 0.03 × 0.397) × $33.4009 = $14.02

Open 51741 in the RVU calculator

Payment rules and modifiers for 51741

The CMS indicators that decide how 51741 is paid alongside other services.

CMS payment indicators · 51741

Uroflowmetry, complex electronic flow study

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
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)1Not paid (statutory restriction).
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

51741 without 26 · national office

$15.36

Uroflowmetry, complex electronic flow study

51741-26 · Professional component

$8.68

Pays only the interpretation and report.

When to use modifier 26

How 51741 has changed in Iowa

51741 · Office / nonfacility

$14.02

Effective 2026-10-01

The base rate is $1.29 higher than on 2025-10-01, moving from $12.73 to $14.02 (10.1%).

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

    $12.73changed to$14.02

    • Conversion factor 32.3465 changed to 33.4009
    • Practice expense RVU 0.23 changed to 0.26
    • 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

    $13.11changed to$12.73

    • Conversion factor 33.2875 changed to 32.3465

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $12.89changed to$13.11

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $12.99changed to$12.89

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 0.22 changed to 0.23
    • Practice expense GPCI 0.910 changed to 0.913
    • Malpractice GPCI 0.441 changed to 0.457
  5. January 1, 2023

    RVU23A

    $12.92changed to$12.99

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 0.21 changed to 0.22
    • 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

    $13.02changed to$12.92

    • Conversion factor 34.8931 changed to 34.6062

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $13.47changed to$13.02

    • Conversion factor 36.0896 changed to 34.8931
    • Malpractice GPCI 0.424 changed to 0.425

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $13.62changed to$13.47

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 0.22 changed to 0.21
    • Malpractice RVU 0.02 changed to 0.03
    • Malpractice GPCI 0.423 changed to 0.424

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $14.91changed to$13.62

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 0.26 changed to 0.22

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $14.85changed to$14.91

    • Conversion factor 35.8887 changed to 35.9996
    • 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

    $14.78changed to$14.85

    • Conversion factor 35.8043 changed to 35.8887
    • 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

    $14.83changed to$14.78

    • Conversion factor 35.9335 changed to 35.8043

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $14.76changed to$14.83

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $14.42changed to$14.76

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 0.25 changed to 0.26
    • 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

    $14.24changed to$14.42

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 0.27 changed to 0.25
    • 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: $14.24

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$14.02Not available in this settingRVU26D
2026-07-01$14.02Not available in this settingRVU26C
2026-04-01$14.02Not available in this settingRVU26B
2026-01-01$14.02Not available in this settingRVU26A
2025-10-01$12.73Not available in this settingRVU25D
2025-07-01$12.73Not available in this settingRVU25C
2025-04-01$12.73Not available in this settingRVU25B
2025-01-01$12.73Not available in this settingRVU25A
2024-10-01$13.11Not available in this settingRVU24D
2024-07-01$13.11Not available in this settingRVU24C
2024-04-01$13.11Not available in this settingRVU24B
2024-03-09$13.11Not available in this settingRVU24AR
2024-01-01$12.89Not available in this settingRVU24A
2023-10-01$12.99Not available in this settingRVU23D
2023-07-01$12.99Not available in this settingRVU23C
2023-04-01$12.99Not available in this settingRVU23B
2023-01-01$12.99Not available in this settingRVU23A
2022-10-01$12.92Not available in this settingRVU22D
2022-07-01$12.92Not available in this settingRVU22C
2022-04-01$12.92Not available in this settingRVU22B
2022-01-01$12.92Not available in this settingRVU22A
2021-10-01$13.02Not available in this settingRVU21D
2021-07-01$13.02Not available in this settingRVU21C
2021-04-01$13.02Not available in this settingRVU21B
2021-01-01$13.02Not available in this settingRVU21A
2020-10-01$13.47Not available in this settingRVU20D
2020-07-01$13.47Not available in this settingRVU20C
2020-04-01$13.47Not available in this settingRVU20B
2020-01-01$13.47Not available in this settingRVU20A
2019-10-01$13.62Not available in this settingRVU19D
2019-07-01$13.62Not available in this settingRVU19C
2019-04-01$13.62Not available in this settingRVU19B
2019-01-01$13.62Not available in this settingRVU19A
2018-10-01$14.91Not available in this settingRVU18D
2018-07-01$14.91Not available in this settingRVU18C
2018-04-01$14.91Not available in this settingRVU18B
2018-01-01$14.91Not available in this settingRVU18AR1
2017-10-01$14.85Not available in this settingRVU17D
2017-07-01$14.85Not available in this settingRVU17C
2017-04-01$14.85Not available in this settingRVU17B
2017-01-01$14.85Not available in this settingRVU17A
2016-10-01$14.78Not available in this settingRVU16D
2016-07-01$14.78Not available in this settingRVU16C
2016-04-01$14.78Not available in this settingRVU16B
2016-01-01$14.78Not available in this settingRVU16A
2015-10-01$14.83Not available in this settingRVU15D
2015-07-01$14.83Not available in this settingRVU15C
2015-04-01$14.76Not available in this settingRVU15B
2015-01-01$14.76Not available in this settingRVU15A
2014-10-01$14.42Not available in this settingRVU14D
2014-07-01$14.42Not available in this settingRVU14C
2014-04-01$14.42Not available in this settingRVU14B
2014-01-01$14.42Not available in this settingRVU14A
2013-10-01$14.24Not available in this settingRVU13D
2013-07-01$14.24Not available in this settingRVU13C
2013-04-01$14.24Not available in this settingRVU13B
2013-01-01$14.24Not available in this settingRVU13AR

Price 51741 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

51741 billing questions

When should 51741 be used instead of 51736?

Use 51741 for a calibrated electronic flow study. Use 51736 for simple uroflowmetry; the equipment and method documented should support the code selected.

Can 51741 be reported with a cystometrogram?

Uroflowmetry and cystometrography measure different aspects of urinary function and may be performed in the same urodynamic evaluation. Document each service performed and its results.

Which modifiers identify the professional and technical portions?

Modifier 26 identifies the interpretation, and modifier TC identifies the equipment and staff portion. Without either modifier, the claim represents the global service.

What documentation supports 51741?

Document the clinical reason for testing, that calibrated electronic flow measurement was performed, the recorded flow findings, and the practitioner’s interpretation.

How does the multiple-procedure rule affect 51741?

When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and the other procedures are paid at 50% under the standard reduction.

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 51741PPRRVU2026_Oct_nonQPP.csv, line 6,072 (RVU26D)
Geographic factors for IowaGPCI2026.csv, line 53 (RVU26D)

Open CMS sourceHow we calculate rates

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