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CPT code 54231: Cavernosometry, dynamic hemodynamic study2026 Medicare rate & RVUs in Colorado

Dynamic cavernosometry measures penile blood-flow and pressure response during a pharmacologically induced erection to evaluate suspected vascular causes of erectile dysfunction.

CMS RVU26DEffective Oct 1, 2026One payment locality92 Medicare services in 2024

In Colorado, Medicare pays $152.68 for 54231 in the office and $105.77 when it’s performed in a hospital or facility.

$152.68Office (non-facility)
$105.77Hospital or facility
+2.5%vs the national office rate ($148.97)

Check a contract rate as a % of Medicare · 54231 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 54231 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Colorado
  2. What 54231 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 54231 covers

Dynamic cavernosometry is an invasive physiologic study used mainly by urologists to assess penile blood flow and pressure in men with erectile dysfunction when a vascular cause, such as impaired venous occlusion, is suspected. After medication induces an erection, the clinician infuses fluid into the corpora cavernosa and records pressure and flow measurements. The study may be performed in a urology office or facility setting.

Report 54231 when the clinician performs and documents the dynamic pressure-and-flow assessment, rather than an injection or imaging study alone. The record should support the indication, pharmacologic response, measurements, and clinical interpretation. The 0-day global period includes same-day preoperative and postoperative care. When multiple procedures are performed in one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate for this code. Medicare does not pay an assistant at surgery, 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 Colorado compares for 54231

Across 109 of 109 payment localities, the office rate for 54231 runs from $134.46 in Arkansas to $185.18 in San Benito County, CA. Colorado pays $152.68. The RVUs are the same everywhere; the geographic indexes change the dollars.

54231 in Colorado vs other payment areas
  1. Colorado · this page$152.68
  2. Los Angeles, CA · California$162.46+$9.78
  3. Washington, DC area · District of Columbia$166.70+$14.02
  4. Miami, FL · Florida$164.78+$12.10
  5. Chicago, IL · Illinois$160.62+$7.94
  6. Manhattan, NY · New York$170.13+$17.45
  7. Alaska · Alaska$183.27+$30.59

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

Every other payment area

54231 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$136.08$97.50
ArkansasArkansas$134.46$96.59
ArizonaArizona$145.47$102.74
Bakersfield, CACalifornia$154.08$105.76
Chico, CACalifornia$153.34$105.02
El Centro, CACalifornia$153.38$105.06
Fresno, CACalifornia$153.34$105.02
Hanford, CACalifornia$153.34$105.02

54231 rates by state

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

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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.

$134.46

$183.27

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

View every state and territory as a table
54231 office rate range by state
State / territoryOffice rate rangeLocalities
AK$183.271
AL$136.081
AR$134.461
AZ$145.471
CA$153.34–$185.1829
CO$152.681
CT$157.761
DC$166.701
DE$147.571
FL$149.91–$164.783
GA$142.56–$152.032
GU$155.611
HI$155.611
IA$137.631
ID$138.641
IL$147.22–$160.624
IN$139.261
KS$137.711
KY$140.031
LA$140.09–$145.732
MA$152.27–$165.162
MD$149.84–$166.703
ME$139.88–$145.222
MI$143.59–$152.102
MN$145.241
MO$138.52–$145.433
MS$136.481
MT$148.951
NC$140.991
ND$144.011
NE$138.061
NH$150.961
NJ$159.26–$165.592
NM$144.491
NV$147.651
NY$142.78–$174.395
OH$142.581
OK$139.171
OR$146.19–$156.122
PA$142.43–$154.822
PR$149.661
RI$151.781
SC$142.081
SD$143.421
TN$138.351
TX$141.70–$152.458
UT$143.671
VA$145.25–$166.702
VI$149.661
VT$144.101
WA$151.77–$167.602
WI$140.081
WV$142.851
WY$146.801

See 54231 in every payment locality

How the 54231 rate is calculated

Each of 54231’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 · 54231

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.99

1.99 RVUs× 1.000 GPCI

Practice expense2.22

2.22 RVUs× 1.000 GPCI

Malpractice0.25

0.25 RVUs× 1.000 GPCI

Adjusted RVUs

4.4600

Conversion factor

$33.4009

Medicare rate

$148.97

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

The exact Colorado inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

6,264

Code
54231
Physician work
1.99
Practice expense
2.22
Malpractice
0.25

GPCI2026.csv

37

Locality
Colorado
Physician work
1.012
Practice expense
1.064
Malpractice
0.781
Office calculation for 54231 in Colorado
ComponentRVULocality factorAdjusted
Physician work1.99× 1.0122.0139
Practice expense2.22× 1.0642.3621
Malpractice0.25× 0.7810.1953
Total RVUs4.5712
Conversion factor× 33.4009

Office rate, Colorado$152.68

Office: (1.99 × 1.012 + 2.22 × 1.064 + 0.25 × 0.781) × $33.4009 = $152.68

Facility: (1.99 × 1.012 + 0.9 × 1.064 + 0.25 × 0.781) × $33.4009 = $105.77

Open 54231 in the RVU calculator

Payment rules and modifiers for 54231

The CMS indicators that decide how 54231 is paid alongside other services.

CMS payment indicators · 54231

Cavernosometry, dynamic hemodynamic study

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)1Not paid (statutory restriction).
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

54231 without 51 · national office

$148.97

Cavernosometry, dynamic hemodynamic study

54231-51 · Second procedure: 50%

$74.49

When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).

When to use modifier 51

Codes related to 54231

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 54231
CodeHow it relatesOffice range, Colorado
Often billed with
54230Cavernosography, contrast injectionCavernosography may accompany the pressure-and-flow study to image penile venous anatomy.$113.75
Used instead
54240Penile plethysmography, stimulus-response measurementPenile plethysmography evaluates erectile response using a different diagnostic method.$116.36
54250Nocturnal erection testing, tumescence and rigidityNocturnal tumescence and rigidity testing assesses erections during sleep rather than induced hemodynamics.$125.76

How 54231 has changed in Colorado

54231 · Office / nonfacility

$152.68

Effective 2026-10-01

The base rate is $8.90 higher than on 2025-10-01, moving from $143.78 to $152.68 (6.2%).

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

    $143.78changed to$152.68

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 2.04 changed to 1.99
    • Practice expense RVU 2.08 changed to 2.22
    • Malpractice RVU 0.24 changed to 0.25
    • Work GPCI 1.008 changed to 1.012
    • Practice expense GPCI 1.053 changed to 1.064
    • Malpractice GPCI 0.827 changed to 0.781

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $146.56changed to$143.78

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 2.04 changed to 2.08

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $144.17changed to$146.56

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $146.32changed to$144.17

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 1.97 changed to 2.04
    • Malpractice RVU 0.25 changed to 0.24
    • Work GPCI 1.005 changed to 1.008
    • Practice expense GPCI 1.050 changed to 1.053
    • Malpractice GPCI 0.797 changed to 0.827

  5. January 1, 2023

    RVU23A

    $145.88changed to$146.32

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 1.90 changed to 1.97
    • Malpractice RVU 0.24 changed to 0.25
    • Work GPCI 1.001 changed to 1.005
    • Practice expense GPCI 1.047 changed to 1.050
    • Malpractice GPCI 0.767 changed to 0.797

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $145.73changed to$145.88

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 1.87 changed to 1.90
    • Malpractice RVU 0.23 changed to 0.24

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $148.19changed to$145.73

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 1.79 changed to 1.87
    • Malpractice RVU 0.24 changed to 0.23
    • Work GPCI 1.000 changed to 1.001
    • Practice expense GPCI 1.033 changed to 1.047
    • Malpractice GPCI 0.905 changed to 0.767

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $148.56changed to$148.19

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 1.81 changed to 1.79
    • Malpractice RVU 0.23 changed to 0.24
    • Practice expense GPCI 1.018 changed to 1.033
    • Malpractice GPCI 1.042 changed to 0.905

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $148.40changed to$148.56

    • Conversion factor 35.9996 changed to 36.0391

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $145.76changed to$148.40

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 1.75 changed to 1.81
    • Practice expense GPCI 1.015 changed to 1.018
    • Malpractice GPCI 1.066 changed to 1.042

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $144.64changed to$145.76

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 1.73 changed to 1.75
    • Practice expense GPCI 1.011 changed to 1.015
    • Malpractice GPCI 1.090 changed to 1.066

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $145.16changed to$144.64

    • Conversion factor 35.9335 changed to 35.8043

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $144.44changed to$145.16

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $141.86changed to$144.44

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 1.72 changed to 1.73
    • Malpractice RVU 0.19 changed to 0.23
    • Practice expense GPCI 1.008 changed to 1.011
    • Malpractice GPCI 0.981 changed to 1.090

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $137.85changed to$141.86

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 1.83 changed to 1.72
    • Malpractice RVU 0.20 changed to 0.19
    • Practice expense GPCI 1.004 changed to 1.008
    • Malpractice GPCI 0.872 changed to 0.981

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $137.85

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$152.68$105.77RVU26D
2026-07-01$152.68$105.77RVU26C
2026-04-01$152.68$105.77RVU26B
2026-01-01$152.68$105.77RVU26A
2025-10-01$143.78$113.81RVU25D
2025-07-01$143.78$113.81RVU25C
2025-04-01$143.78$113.81RVU25B
2025-01-01$143.78$113.81RVU25A
2024-10-01$146.56$116.07RVU24D
2024-07-01$146.56$116.07RVU24C
2024-04-01$146.56$116.07RVU24B
2024-03-09$146.56$116.07RVU24AR
2024-01-01$144.17$114.17RVU24A
2023-10-01$146.32$115.72RVU23D
2023-07-01$146.32$115.72RVU23C
2023-04-01$146.32$115.72RVU23B
2023-01-01$146.32$115.72RVU23A
2022-10-01$145.88$116.17RVU22D
2022-07-01$145.88$116.17RVU22C
2022-04-01$145.88$116.17RVU22B
2022-01-01$145.88$116.17RVU22A
2021-10-01$145.73$116.86RVU21D
2021-07-01$145.73$116.86RVU21C
2021-04-01$145.73$116.86RVU21B
2021-01-01$145.73$116.86RVU21A
2020-10-01$148.19$120.98RVU20D
2020-07-01$148.19$120.98RVU20C
2020-04-01$148.19$120.98RVU20B
2020-01-01$148.19$120.98RVU20A
2019-10-01$148.56$122.15RVU19D
2019-07-01$148.56$122.15RVU19C
2019-04-01$148.56$122.15RVU19B
2019-01-01$148.56$122.15RVU19A
2018-10-01$148.40$122.75RVU18D
2018-07-01$148.40$122.75RVU18C
2018-04-01$148.40$122.75RVU18B
2018-01-01$148.40$122.75RVU18AR1
2017-10-01$145.76$122.08RVU17D
2017-07-01$145.76$122.08RVU17C
2017-04-01$145.76$122.08RVU17B
2017-01-01$145.76$122.08RVU17A
2016-10-01$144.64$120.75RVU16D
2016-07-01$144.64$120.75RVU16C
2016-04-01$144.64$120.75RVU16B
2016-01-01$144.64$120.75RVU16A
2015-10-01$145.16$121.55RVU15D
2015-07-01$145.16$121.55RVU15C
2015-04-01$144.44$120.94RVU15B
2015-01-01$144.44$120.94RVU15A
2014-10-01$141.86$118.39RVU14D
2014-07-01$141.86$118.39RVU14C
2014-04-01$141.86$118.39RVU14B
2014-01-01$141.86$118.39RVU14A
2013-10-01$137.85$113.94RVU13D
2013-07-01$137.85$113.94RVU13C
2013-04-01$137.85$113.94RVU13B
2013-01-01$137.85$113.94RVU13AR

Price 54231 for an earlier date of service

Where the Colorado rate applies

Colorado is a Medicare payment area, not a city. Our Census mapping connects it to 485 cities and communities in Colorado. Some span more than one payment area; confirm with the service ZIP.

  • Acres Green
  • Aetna Estates
  • Aguilar
  • Air Force Academy
  • Akron
  • Alamosa
  • Alamosa East
  • Allenspark

Browse all communities in Colorado

54231 billing questions

How is 54231 different from cavernosography?

54231 reports dynamic pressure and flow measurements during a pharmacologically induced erection. Cavernosography uses contrast imaging to show penile venous anatomy and may be performed with cavernosometry.

Does the pharmacologic injection alone support 54231?

No. The service involves a dynamic hemodynamic assessment, not simply injecting an agent into the corpora cavernosa.

What documentation supports reporting this code?

Document the clinical reason for the study, the pharmacologic response, the pressure and flow measurements, and the clinician’s interpretation of the findings.

Should modifier 50 be appended?

No. CMS identifies bilateral adjustment as inappropriate for this code’s descriptor and anatomy.

How does the multiple-procedure reduction affect payment?

When 54231 is performed with other procedures in the same session, the highest-valued procedure is paid in full and the other procedure or procedures are subject to the standard 50% reduction.

Can an assistant or co-surgeon be reported?

Medicare does not pay an assistant at surgery for this code, and co-surgeons and team surgery are not permitted.

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 54231PPRRVU2026_Oct_nonQPP.csv, line 6,264 (RVU26D)
Geographic factors for ColoradoGPCI2026.csv, line 37 (RVU26D)

Open CMS sourceHow we calculate rates

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