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CMS RVU26D · Effective 2026-10-01

51797 in El Centro

Office / nonfacility

$166.50

Base rate per service

Facility setting

Not available in this setting

Base rate per service

Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.

Urodynamic testing

About 51797: Urodynamic intra-abdominal pressure measurement

Measures intra-abdominal pressure during urodynamic testing, typically alongside complex cystometrogram studies that assess bladder pressure during filling and voiding.

This add-on captures intra-abdominal pressure during urodynamic evaluation, commonly through a rectal pressure catheter or balloon while bladder pressure is recorded. Comparing abdominal and bladder pressure helps the clinician assess detrusor pressure during filling and voiding. Urologists and other clinicians who perform urodynamic studies use it in office or facility settings for patients evaluated for urinary retention, incontinence, or other lower urinary tract symptoms.

Report 51797 only with a primary procedure, commonly 51728 or 51729, when the abdominal-pressure measurement is performed; it is not a stand-alone service. The record should identify the measurement method, include the pressure data, and support its role in the study. CMS treats payment for this add-on as within the primary procedure's global period. The service may be billed globally without a modifier or split between interpretation (modifier 26) and equipment and staff (modifier TC); CMS separately prices both component modifiers.

CMS billing rules for 51797

Global period
Add-on code: billed only together with a primary procedure and paid within that procedure's global period.
Professional and technical components
Diagnostic test with a professional component (modifier 26, interpretation) and a technical component (modifier TC, equipment and staff); billing without a modifier is the global service.

Where the value comes from

  • Work RVU0.78 · 17%
  • Practice expense (office) RVU3.79 · 82%
  • Malpractice RVU0.07 · 2%

96.4K

Medicare services in 2024 · #572 by national volume

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.

51797 compared with similar codes

Office rates for El Centro, from the same CMS release.

51728

Urodynamic study

With voiding pressure

$359.49

51728 reports the complex cystometrogram with voiding pressure studies; 51797 separately identifies the intra-abdominal pressure measurement as an add-on when performed.

51729

Urodynamic study

Voiding and urethral pressures

$375.83

51729 is the primary complex cystometrogram code when leak point pressure studies are included. 51797 reports the intra-abdominal pressure measurement alongside the primary study.

51726

Cystometrogram

Electronic pressure-volume testing

$289.33

51726 reports a complex cystometrogram without the voiding pressure study focus of 51728. 51797 is an add-on measurement, not a substitute for the primary cystometrogram code.

The same code, a different location

How does El Centro compare?

In Bakersfield, the office rate for 51797 is $166.71—$0.21 higher than the $166.50 rate in El Centro. Both use the same code, release and participation basis.

51797 across payment areas

Same release and payment basis · bars start at $0

  1. El Centro · This locality

    $166.50

  2. $0.21 higher than El Centro

  3. Chico

    $166.49

    $0.01 lower than El Centro

  4. Fresno

    $166.49

    $0.01 lower than El Centro

  5. $0.01 lower than El Centro

  6. $11.93 higher than El Centro

  7. Madera

    $166.49

    $0.01 lower than El Centro

Other payment areas listed in California appear first, followed by selected cross-country examples. The chart compares amounts, not distance.

Across 109 of 109 CMS payment localities with a supported office rate, 51797 ranges from $136.00 in Arkansas to $212.71 in San Jose-Sunnyvale-Santa Clara (San Benito Cnty). This is a geographic range, not an average.

The code’s RVUs stay the same in these comparisons. Geographic adjustments to work, practice expense and malpractice change the dollar amount. A city name alone may not identify the payment area for a service address.

Compare all 108 other payment areas
  • Merced

    California · 51797

    Office

    $166.49

    Facility

    Unavailable

    $0.01 lower than El Centro for the office setting.

  • Modesto

    California · 51797

    Office

    $166.49

    Facility

    Unavailable

    $0.01 lower than El Centro for the office setting.

  • Napa

    California · 51797

    Office

    $195.73

    Facility

    Unavailable

    $29.23 higher than El Centro for the office setting.

  • Oxnard-Thousand Oaks-Ventura

    California · 51797

    Office

    $177.87

    Facility

    Unavailable

    $11.37 higher than El Centro for the office setting.

  • Redding

    California · 51797

    Office

    $166.49

    Facility

    Unavailable

    $0.01 lower than El Centro for the office setting.

  • Rest Of California

    California · 51797

    Office

    $166.49

    Facility

    Unavailable

    $0.01 lower than El Centro for the office setting.

  • Riverside-San Bernardino-Ontario

    California · 51797

    Office

    $167.26

    Facility

    Unavailable

    $0.76 higher than El Centro for the office setting.

  • Sacramento-Roseville-Folsom

    California · 51797

    Office

    $175.47

    Facility

    Unavailable

    $8.97 higher than El Centro for the office setting.

  • Salinas

    California · 51797

    Office

    $174.83

    Facility

    Unavailable

    $8.33 higher than El Centro for the office setting.

  • San Diego-Chula Vista-Carlsbad

    California · 51797

    Office

    $179.50

    Facility

    Unavailable

    $13.00 higher than El Centro for the office setting.

  • San Francisco-Oakland-Berkeley (Marin Cnty)

    California · 51797

    Office

    $208.09

    Facility

    Unavailable

    $41.59 higher than El Centro for the office setting.

  • San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)

    California · 51797

    Office

    $208.01

    Facility

    Unavailable

    $41.51 higher than El Centro for the office setting.

  • San Jose-Sunnyvale-Santa Clara (San Benito Cnty)

    California · 51797

    Office

    $212.71

    Facility

    Unavailable

    $46.21 higher than El Centro for the office setting.

  • San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)

    California · 51797

    Office

    $212.39

    Facility

    Unavailable

    $45.89 higher than El Centro for the office setting.

  • San Luis Obispo-Paso Robles

    California · 51797

    Office

    $171.93

    Facility

    Unavailable

    $5.43 higher than El Centro for the office setting.

  • Santa Cruz-Watsonville

    California · 51797

    Office

    $181.66

    Facility

    Unavailable

    $15.16 higher than El Centro for the office setting.

  • Santa Maria-Santa Barbara

    California · 51797

    Office

    $175.64

    Facility

    Unavailable

    $9.14 higher than El Centro for the office setting.

  • Santa Rosa-Petaluma

    California · 51797

    Office

    $183.54

    Facility

    Unavailable

    $17.04 higher than El Centro for the office setting.

  • Stockton

    California · 51797

    Office

    $166.49

    Facility

    Unavailable

    $0.01 lower than El Centro for the office setting.

  • Vallejo

    California · 51797

    Office

    $195.61

    Facility

    Unavailable

    $29.11 higher than El Centro for the office setting.

  • Visalia

    California · 51797

    Office

    $166.49

    Facility

    Unavailable

    $0.01 lower than El Centro for the office setting.

  • Yuba City

    California · 51797

    Office

    $166.49

    Facility

    Unavailable

    $0.01 lower than El Centro for the office setting.

  • Dc + Md/Va Suburbs

    District of Columbia · 51797

    Office

    $179.18

    Facility

    Unavailable

    $12.68 higher than El Centro for the office setting.

  • Miami

    Florida · 51797

    Office

    $163.75

    Facility

    Unavailable

    $2.75 lower than El Centro for the office setting.

  • Chicago

    Illinois · 51797

    Office

    $158.82

    Facility

    Unavailable

    $7.68 lower than El Centro for the office setting.

  • Manhattan

    New York · 51797

    Office

    $178.53

    Facility

    Unavailable

    $12.03 higher than El Centro for the office setting.

  • Alaska*

    Alaska · 51797

    Office

    $175.19

    Facility

    Unavailable

    $8.69 higher than El Centro for the office setting.

  • Alabama

    Alabama · 51797

    Office

    $138.14

    Facility

    Unavailable

    $28.36 lower than El Centro for the office setting.

  • Arkansas

    Arkansas · 51797

    Office

    $136.00

    Facility

    Unavailable

    $30.50 lower than El Centro for the office setting.

  • Arizona

    Arizona · 51797

    Office

    $150.72

    Facility

    Unavailable

    $15.78 lower than El Centro for the office setting.

  • Colorado

    Colorado · 51797

    Office

    $162.88

    Facility

    Unavailable

    $3.62 lower than El Centro for the office setting.

  • Connecticut

    Connecticut · 51797

    Office

    $165.74

    Facility

    Unavailable

    $0.76 lower than El Centro for the office setting.

  • Delaware

    Delaware · 51797

    Office

    $153.36

    Facility

    Unavailable

    $13.14 lower than El Centro for the office setting.

  • Fort Lauderdale

    Florida · 51797

    Office

    $158.51

    Facility

    Unavailable

    $7.99 lower than El Centro for the office setting.

  • Rest Of Florida

    Florida · 51797

    Office

    $150.59

    Facility

    Unavailable

    $15.91 lower than El Centro for the office setting.

  • Atlanta

    Georgia · 51797

    Office

    $157.55

    Facility

    Unavailable

    $8.95 lower than El Centro for the office setting.

  • Rest Of Georgia

    Georgia · 51797

    Office

    $141.76

    Facility

    Unavailable

    $24.74 lower than El Centro for the office setting.

  • Hawaii, Guam

    Hawaii · 51797

    Office

    $171.34

    Facility

    Unavailable

    $4.84 higher than El Centro for the office setting.

  • Iowa

    Iowa · 51797

    Office

    $142.81

    Facility

    Unavailable

    $23.69 lower than El Centro for the office setting.

  • Idaho

    Idaho · 51797

    Office

    $143.62

    Facility

    Unavailable

    $22.88 lower than El Centro for the office setting.

  • East St. Louis

    Illinois · 51797

    Office

    $147.22

    Facility

    Unavailable

    $19.28 lower than El Centro for the office setting.

  • Rest Of Illinois

    Illinois · 51797

    Office

    $145.28

    Facility

    Unavailable

    $21.22 lower than El Centro for the office setting.

  • Suburban Chicago

    Illinois · 51797

    Office

    $160.39

    Facility

    Unavailable

    $6.11 lower than El Centro for the office setting.

  • Indiana

    Indiana · 51797

    Office

    $144.54

    Facility

    Unavailable

    $21.96 lower than El Centro for the office setting.

  • Kansas

    Kansas · 51797

    Office

    $141.67

    Facility

    Unavailable

    $24.83 lower than El Centro for the office setting.

  • Kentucky

    Kentucky · 51797

    Office

    $140.73

    Facility

    Unavailable

    $25.77 lower than El Centro for the office setting.

  • New Orleans

    Louisiana · 51797

    Office

    $147.83

    Facility

    Unavailable

    $18.67 lower than El Centro for the office setting.

  • Rest Of Louisiana

    Louisiana · 51797

    Office

    $140.32

    Facility

    Unavailable

    $26.18 lower than El Centro for the office setting.

  • Metropolitan Boston

    Massachusetts · 51797

    Office

    $180.35

    Facility

    Unavailable

    $13.85 higher than El Centro for the office setting.

  • Rest Of Massachusetts

    Massachusetts · 51797

    Office

    $161.63

    Facility

    Unavailable

    $4.87 lower than El Centro for the office setting.

  • Baltimore/Surr. Cntys

    Maryland · 51797

    Office

    $165.19

    Facility

    Unavailable

    $1.31 lower than El Centro for the office setting.

  • Rest Of Maryland

    Maryland · 51797

    Office

    $156.57

    Facility

    Unavailable

    $9.93 lower than El Centro for the office setting.

  • Rest Of Maine

    Maine · 51797

    Office

    $143.97

    Facility

    Unavailable

    $22.53 lower than El Centro for the office setting.

  • Southern Maine

    Maine · 51797

    Office

    $152.98

    Facility

    Unavailable

    $13.52 lower than El Centro for the office setting.

  • Detroit

    Michigan · 51797

    Office

    $152.15

    Facility

    Unavailable

    $14.35 lower than El Centro for the office setting.

  • Rest Of Michigan

    Michigan · 51797

    Office

    $144.27

    Facility

    Unavailable

    $22.23 lower than El Centro for the office setting.

  • Minnesota

    Minnesota · 51797

    Office

    $157.01

    Facility

    Unavailable

    $9.49 lower than El Centro for the office setting.

  • Metropolitan Kansas City

    Missouri · 51797

    Office

    $147.20

    Facility

    Unavailable

    $19.30 lower than El Centro for the office setting.

  • Metropolitan St. Louis

    Missouri · 51797

    Office

    $148.91

    Facility

    Unavailable

    $17.59 lower than El Centro for the office setting.

  • Rest Of Missouri

    Missouri · 51797

    Office

    $137.45

    Facility

    Unavailable

    $29.05 lower than El Centro for the office setting.

  • Mississippi

    Mississippi · 51797

    Office

    $136.77

    Facility

    Unavailable

    $29.73 lower than El Centro for the office setting.

  • Montana**

    Montana · 51797

    Office

    $154.98

    Facility

    Unavailable

    $11.52 lower than El Centro for the office setting.

  • North Carolina

    North Carolina · 51797

    Office

    $145.65

    Facility

    Unavailable

    $20.85 lower than El Centro for the office setting.

  • North Dakota**

    North Dakota · 51797

    Office

    $153.59

    Facility

    Unavailable

    $12.91 lower than El Centro for the office setting.

  • Nebraska

    Nebraska · 51797

    Office

    $143.78

    Facility

    Unavailable

    $22.72 lower than El Centro for the office setting.

  • New Hampshire

    New Hampshire · 51797

    Office

    $159.88

    Facility

    Unavailable

    $6.62 lower than El Centro for the office setting.

  • Northern Nj

    New Jersey · 51797

    Office

    $177.03

    Facility

    Unavailable

    $10.53 higher than El Centro for the office setting.

  • Rest Of New Jersey

    New Jersey · 51797

    Office

    $167.90

    Facility

    Unavailable

    $1.40 higher than El Centro for the office setting.

  • New Mexico

    New Mexico · 51797

    Office

    $144.94

    Facility

    Unavailable

    $21.56 lower than El Centro for the office setting.

  • Nevada**

    Nevada · 51797

    Office

    $154.72

    Facility

    Unavailable

    $11.78 lower than El Centro for the office setting.

  • Nyc Suburbs/Long Island

    New York · 51797

    Office

    $182.58

    Facility

    Unavailable

    $16.08 higher than El Centro for the office setting.

  • Poughkpsie/N Nyc Suburbs

    New York · 51797

    Office

    $168.67

    Facility

    Unavailable

    $2.17 higher than El Centro for the office setting.

  • Queens

    New York · 51797

    Office

    $180.72

    Facility

    Unavailable

    $14.22 higher than El Centro for the office setting.

  • Rest Of New York

    New York · 51797

    Office

    $147.96

    Facility

    Unavailable

    $18.54 lower than El Centro for the office setting.

  • Ohio

    Ohio · 51797

    Office

    $143.99

    Facility

    Unavailable

    $22.51 lower than El Centro for the office setting.

  • Oklahoma

    Oklahoma · 51797

    Office

    $140.91

    Facility

    Unavailable

    $25.59 lower than El Centro for the office setting.

  • Portland

    Oregon · 51797

    Office

    $168.85

    Facility

    Unavailable

    $2.35 higher than El Centro for the office setting.

  • Rest Of Oregon

    Oregon · 51797

    Office

    $153.78

    Facility

    Unavailable

    $12.72 lower than El Centro for the office setting.

  • Metropolitan Philadelphia

    Pennsylvania · 51797

    Office

    $161.09

    Facility

    Unavailable

    $5.41 lower than El Centro for the office setting.

  • Rest Of Pennsylvania

    Pennsylvania · 51797

    Office

    $144.47

    Facility

    Unavailable

    $22.03 lower than El Centro for the office setting.

  • Puerto Rico

    Puerto Rico · 51797

    Office

    $156.34

    Facility

    Unavailable

    $10.16 lower than El Centro for the office setting.

  • Rhode Island

    Rhode Island · 51797

    Office

    $159.40

    Facility

    Unavailable

    $7.10 lower than El Centro for the office setting.

  • South Carolina

    South Carolina · 51797

    Office

    $145.01

    Facility

    Unavailable

    $21.49 lower than El Centro for the office setting.

  • South Dakota**

    South Dakota · 51797

    Office

    $153.43

    Facility

    Unavailable

    $13.07 lower than El Centro for the office setting.

  • Tennessee

    Tennessee · 51797

    Office

    $142.38

    Facility

    Unavailable

    $24.12 lower than El Centro for the office setting.

  • Austin

    Texas · 51797

    Office

    $162.11

    Facility

    Unavailable

    $4.39 lower than El Centro for the office setting.

  • Beaumont

    Texas · 51797

    Office

    $143.42

    Facility

    Unavailable

    $23.08 lower than El Centro for the office setting.

  • Brazoria

    Texas · 51797

    Office

    $153.53

    Facility

    Unavailable

    $12.97 lower than El Centro for the office setting.

  • Dallas

    Texas · 51797

    Office

    $154.38

    Facility

    Unavailable

    $12.12 lower than El Centro for the office setting.

  • Fort Worth

    Texas · 51797

    Office

    $153.14

    Facility

    Unavailable

    $13.36 lower than El Centro for the office setting.

  • Galveston

    Texas · 51797

    Office

    $153.90

    Facility

    Unavailable

    $12.60 lower than El Centro for the office setting.

  • Houston

    Texas · 51797

    Office

    $155.18

    Facility

    Unavailable

    $11.32 lower than El Centro for the office setting.

  • Rest Of Texas

    Texas · 51797

    Office

    $148.30

    Facility

    Unavailable

    $18.20 lower than El Centro for the office setting.

  • Utah

    Utah · 51797

    Office

    $147.15

    Facility

    Unavailable

    $19.35 lower than El Centro for the office setting.

  • Virginia

    Virginia · 51797

    Office

    $152.14

    Facility

    Unavailable

    $14.36 lower than El Centro for the office setting.

  • Virgin Islands

    United States Virgin Islands · 51797

    Office

    $156.34

    Facility

    Unavailable

    $10.16 lower than El Centro for the office setting.

  • Vermont

    Vermont · 51797

    Office

    $152.56

    Facility

    Unavailable

    $13.94 lower than El Centro for the office setting.

  • Rest Of Washington

    Washington · 51797

    Office

    $161.47

    Facility

    Unavailable

    $5.03 lower than El Centro for the office setting.

  • Seattle (King Cnty)

    Washington · 51797

    Office

    $184.59

    Facility

    Unavailable

    $18.09 higher than El Centro for the office setting.

  • Wisconsin

    Wisconsin · 51797

    Office

    $148.05

    Facility

    Unavailable

    $18.45 lower than El Centro for the office setting.

  • West Virginia

    West Virginia · 51797

    Office

    $139.40

    Facility

    Unavailable

    $27.10 lower than El Centro for the office setting.

  • Wyoming**

    Wyoming · 51797

    Office

    $154.37

    Facility

    Unavailable

    $12.13 lower than El Centro for the office setting.

See how rates vary across the country

51797 · Office / nonfacility · Non-QP. Choose a state to explore its payment localities. A range means the amount varies within that state.

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.

$136.00

$189.60

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

View all state and territory rates as a table
State / territoryRate rangeLocalities
AK$175.191
AL$138.141
AR$136.001
AZ$150.721
CA$166.49–$212.7129
CO$162.881
CT$165.741
DC$179.181
DE$153.361
FL$150.59–$163.753
GA$141.76–$157.552
GU$171.341
HI$171.341
IA$142.811
ID$143.621
IL$145.28–$160.394
IN$144.541
KS$141.671
KY$140.731
LA$140.32–$147.832
MA$161.63–$180.352
MD$156.57–$179.183
ME$143.97–$152.982
MI$144.27–$152.152
MN$157.011
MO$137.45–$148.913
MS$136.771
MT$154.981
NC$145.651
ND$153.591
NE$143.781
NH$159.881
NJ$167.90–$177.032
NM$144.941
NV$154.721
NY$147.96–$182.585
OH$143.991
OK$140.911
OR$153.78–$168.852
PA$144.47–$161.092
PR$156.341
RI$159.401
SC$145.011
SD$153.431
TN$142.381
TX$143.42–$162.118
UT$147.151
VA$152.14–$179.182
VI$156.341
VT$152.561
WA$161.47–$184.592
WI$148.051
WV$139.401
WY$154.371

Explore 51797 on the national rate map →

Where does this rate apply?

El Centro is a Medicare payment area. Our Census mapping connects it to 18 cities and communities in California, including the examples shown here.

Some communities span more than one payment area. Follow a city link to compare all of its mapped areas, or check the service-location ZIP above for an address-level starting point.

Use this rate

What is a percentage of Medicare worth?

Turn a percentage into dollars for 51797 in El Centro. This uses the base rate on this page, so the locality and release stay consistent.

Reference amount per service

$183.15

$166.50 × 110% = $183.15

A contract may specify another Medicare year or additional adjustments. This is percentage arithmetic on the displayed base rate, not a claim adjudication.

Working with a whole code list?

Compare an offer across your annual code mix, including an older Medicare schedule or flat per-code rates.

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How this local rate is calculated

Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 51797 in El Centro.

PPRRVU2026_Oct_nonQPP.csv

6,084

Code
51797
Physician work
0.78
Practice expense
3.79
Malpractice
0.07

GPCI2026.csv

10

Locality
El Centro
Physician work
1.017
Practice expense
1.096
Malpractice
0.541
Office / nonfacility calculation for 51797 in El Centro
ComponentRVULocality factorAdjusted
Physician work0.78× 1.0170.7933
Practice expense3.79× 1.0964.1538
Malpractice0.07× 0.5410.0379
Total RVUs4.9850
Conversion factor× 33.4009

Office / nonfacility rate, El Centro$166.50

Values as parsed from CMS release RVU26D, effective 2026-10-01. The amount is rounded to the nearest cent only at the end.

Open 51797 in the RVU calculator →

Explore RVUs, geographic factors and the full formula

Office / nonfacility

Office / nonfacility calculation inputs
ComponentRVULocal GPCI
Work0.781.017
Practice expense3.791.096
Malpractice0.070.541

(0.78 × 1.017 + 3.79 × 1.096 + 0.07 × 0.541) × $33.4009 = $166.50

The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.

How this rate has changed

51797 · Office / nonfacility

$166.50

Effective 2026-10-01

The base rate is $6.34 lower than on 2025-10-01, moving from $172.84 to $166.50 (3.7%).

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

    $172.84changed to$166.50

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.80 changed to 0.78
    • Practice expense RVU 4.11 changed to 3.79
    • Work GPCI 1.014 changed to 1.017
    • Practice expense GPCI 1.093 changed to 1.096
    • Malpractice GPCI 0.570 changed to 0.541

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    Earliest loaded release: $172.84

    Held through RVU25B, RVU25C, RVU25D.

Explore release dates and calculate this code in an earlier period →

Each row uses the accepted CMS release effective on that date and the same contractor and locality identifiers. Missing rates stay visible. Historical boundaries may differ; verify the service address for an older claim.

Inspect every release and its CMS source
Effective fromOffice / nonfacilityFacilityCMS release
2026-10-01$166.50Not available in this settingRVU26D
2026-07-01$166.50Not available in this settingRVU26C
2026-04-01$166.50Not available in this settingRVU26B
2026-01-01$166.50Not available in this settingRVU26A
2025-10-01$172.84Not available in this settingRVU25D
2025-07-01$172.84Not available in this settingRVU25C
2025-04-01$172.84Not available in this settingRVU25B
2025-01-01$172.84Not available in this settingRVU25A

51797 billing questions

Can 51797 be billed by itself?

No. It is an add-on and must be reported with a primary procedure, commonly 51728 or 51729, when intra-abdominal pressure is measured.

How does 51797 differ from 51728?

51728 reports a complex cystometrogram with voiding pressure studies. 51797 is the add-on for the intra-abdominal pressure measurement performed as part of the study.

What documentation supports 51797?

Document the pressure-measurement method, the recorded abdominal-pressure data, and how the measurement relates to the urodynamic study.

Can the professional and technical portions be billed separately?

Yes. Modifier 26 identifies the interpretation, and modifier TC identifies the equipment and staff portion. Billing without a modifier represents the global service.

Which primary procedures are commonly paired with 51797?

It is commonly reported with 51728 or 51729 when the study includes intra-abdominal pressure measurement. Select the primary procedure based on the urodynamic services 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 indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.

Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.

RVUs for 51797PPRRVU2026_Oct_nonQPP.csv, line 6,084 (RVU26D)
Geographic factors for El CentroGPCI2026.csv, line 10 (RVU26D)