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CMS RVU26D · Effective 2026-10-01

77439 in Merced

Office / nonfacility

$16.78

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.

Radiation oncology

About 77439: Ultrasound-guided surface radiation placement

This add-on reports ultrasound image guidance for placement during surface radiation therapy, alongside the applicable primary radiation delivery service.

This service covers ultrasound-based image guidance used to place or position equipment for surface radiation therapy. It is associated with treatment delivery for superficial or orthovoltage radiation, including treatment of cutaneous lesions. A radiation oncologist or other qualified clinician may perform and interpret the imaging, with technical staff and ultrasound equipment supporting the technical portion in a radiation oncology setting.

Report 77439 only with its primary radiation treatment service; select the primary delivery code based on the treatment type, such as superficial treatment at 150 kV or less versus orthovoltage treatment above 150 through 500 kV. The record should support the ultrasound-guided placement and the imaging service provided. CMS identifies professional and technical components: modifier 26 reports interpretation, modifier TC reports equipment and staff, and no modifier represents the global service. As an add-on, payment is within the primary procedure's global period.

CMS billing rules for 77439

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 RVU0.30 · 63%
  • Practice expense (office) RVU0.18 · 38%
  • Malpractice RVU0.00 · 0%

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.

77439 compared with similar codes

Office rates for Merced, from the same CMS release.

77437

Superficial radiation

Up to 150 kV

$119.89

77437 reports superficial radiation delivery at 150 kV or less. 77439 is an add-on for ultrasound-based placement guidance and is not a substitute for delivery.

77438

Superficial radiation

150-500 kV

$120.98

77438 reports orthovoltage delivery above 150 through 500 kV. Use 77439 for the associated ultrasound placement guidance, not to represent the delivery itself.

77417

Ther radiology port image(s)

No office rate

77417 reports therapeutic radiology port imaging. 77439 concerns ultrasound-based placement guidance for surface radiation treatment.

The same code, a different location

How does Merced compare?

In Bakersfield, the office rate for 77439 is $16.80—$0.02 higher than the $16.78 rate in Merced. Both use the same code, release and participation basis.

77439 across payment areas

Same release and payment basis · bars start at $0

  1. Merced · This locality

    $16.78

  2. $0.02 higher than Merced

  3. Chico

    $16.78

    The same base rate than Merced

  4. El Centro

    $16.78

    The same base rate than Merced

  5. Fresno

    $16.78

    The same base rate than Merced

  6. The same base rate than Merced

  7. $0.76 higher than Merced

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, 77439 ranges from $15.18 in Arkansas to $21.43 in Alaska*. 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
  • Madera

    California · 77439

    Office

    $16.78

    Facility

    Unavailable

    The same base rate than Merced for the office setting.

  • Modesto

    California · 77439

    Office

    $16.78

    Facility

    Unavailable

    The same base rate than Merced for the office setting.

  • Napa

    California · 77439

    Office

    $18.58

    Facility

    Unavailable

    $1.80 higher than Merced for the office setting.

  • Oxnard-Thousand Oaks-Ventura

    California · 77439

    Office

    $17.41

    Facility

    Unavailable

    $0.63 higher than Merced for the office setting.

  • Redding

    California · 77439

    Office

    $16.78

    Facility

    Unavailable

    The same base rate than Merced for the office setting.

  • Rest Of California

    California · 77439

    Office

    $16.78

    Facility

    Unavailable

    The same base rate than Merced for the office setting.

  • Riverside-San Bernardino-Ontario

    California · 77439

    Office

    $16.79

    Facility

    Unavailable

    $0.01 higher than Merced for the office setting.

  • Sacramento-Roseville-Folsom

    California · 77439

    Office

    $17.37

    Facility

    Unavailable

    $0.59 higher than Merced for the office setting.

  • Salinas

    California · 77439

    Office

    $17.30

    Facility

    Unavailable

    $0.52 higher than Merced for the office setting.

  • San Diego-Chula Vista-Carlsbad

    California · 77439

    Office

    $17.51

    Facility

    Unavailable

    $0.73 higher than Merced for the office setting.

  • San Francisco-Oakland-Berkeley (Marin Cnty)

    California · 77439

    Office

    $19.45

    Facility

    Unavailable

    $2.67 higher than Merced for the office setting.

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

    California · 77439

    Office

    $19.45

    Facility

    Unavailable

    $2.67 higher than Merced for the office setting.

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

    California · 77439

    Office

    $19.79

    Facility

    Unavailable

    $3.01 higher than Merced for the office setting.

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

    California · 77439

    Office

    $19.79

    Facility

    Unavailable

    $3.01 higher than Merced for the office setting.

  • San Luis Obispo-Paso Robles

    California · 77439

    Office

    $17.04

    Facility

    Unavailable

    $0.26 higher than Merced for the office setting.

  • Santa Cruz-Watsonville

    California · 77439

    Office

    $17.54

    Facility

    Unavailable

    $0.76 higher than Merced for the office setting.

  • Santa Maria-Santa Barbara

    California · 77439

    Office

    $17.31

    Facility

    Unavailable

    $0.53 higher than Merced for the office setting.

  • Santa Rosa-Petaluma

    California · 77439

    Office

    $17.70

    Facility

    Unavailable

    $0.92 higher than Merced for the office setting.

  • Stockton

    California · 77439

    Office

    $16.78

    Facility

    Unavailable

    The same base rate than Merced for the office setting.

  • Vallejo

    California · 77439

    Office

    $18.58

    Facility

    Unavailable

    $1.80 higher than Merced for the office setting.

  • Visalia

    California · 77439

    Office

    $16.78

    Facility

    Unavailable

    The same base rate than Merced for the office setting.

  • Yuba City

    California · 77439

    Office

    $16.78

    Facility

    Unavailable

    The same base rate than Merced for the office setting.

  • Dc + Md/Va Suburbs

    District of Columbia · 77439

    Office

    $17.64

    Facility

    Unavailable

    $0.86 higher than Merced for the office setting.

  • Miami

    Florida · 77439

    Office

    $16.28

    Facility

    Unavailable

    $0.50 lower than Merced for the office setting.

  • Chicago

    Illinois · 77439

    Office

    $16.13

    Facility

    Unavailable

    $0.65 lower than Merced for the office setting.

  • Manhattan

    New York · 77439

    Office

    $17.65

    Facility

    Unavailable

    $0.87 higher than Merced for the office setting.

  • Alaska*

    Alaska · 77439

    Office

    $21.43

    Facility

    Unavailable

    $4.65 higher than Merced for the office setting.

  • Alabama

    Alabama · 77439

    Office

    $15.28

    Facility

    Unavailable

    $1.50 lower than Merced for the office setting.

  • Arkansas

    Arkansas · 77439

    Office

    $15.18

    Facility

    Unavailable

    $1.60 lower than Merced for the office setting.

  • Arizona

    Arizona · 77439

    Office

    $15.85

    Facility

    Unavailable

    $0.93 lower than Merced for the office setting.

  • Colorado

    Colorado · 77439

    Office

    $16.54

    Facility

    Unavailable

    $0.24 lower than Merced for the office setting.

  • Connecticut

    Connecticut · 77439

    Office

    $16.70

    Facility

    Unavailable

    $0.08 lower than Merced for the office setting.

  • Delaware

    Delaware · 77439

    Office

    $16.01

    Facility

    Unavailable

    $0.77 lower than Merced for the office setting.

  • Fort Lauderdale

    Florida · 77439

    Office

    $16.11

    Facility

    Unavailable

    $0.67 lower than Merced for the office setting.

  • Rest Of Florida

    Florida · 77439

    Office

    $15.77

    Facility

    Unavailable

    $1.01 lower than Merced for the office setting.

  • Atlanta

    Georgia · 77439

    Office

    $16.16

    Facility

    Unavailable

    $0.62 lower than Merced for the office setting.

  • Rest Of Georgia

    Georgia · 77439

    Office

    $15.38

    Facility

    Unavailable

    $1.40 lower than Merced for the office setting.

  • Hawaii, Guam

    Hawaii · 77439

    Office

    $16.86

    Facility

    Unavailable

    $0.08 higher than Merced for the office setting.

  • Iowa

    Iowa · 77439

    Office

    $15.52

    Facility

    Unavailable

    $1.26 lower than Merced for the office setting.

  • Idaho

    Idaho · 77439

    Office

    $15.55

    Facility

    Unavailable

    $1.23 lower than Merced for the office setting.

  • East St. Louis

    Illinois · 77439

    Office

    $15.55

    Facility

    Unavailable

    $1.23 lower than Merced for the office setting.

  • Rest Of Illinois

    Illinois · 77439

    Office

    $15.51

    Facility

    Unavailable

    $1.27 lower than Merced for the office setting.

  • Suburban Chicago

    Illinois · 77439

    Office

    $16.26

    Facility

    Unavailable

    $0.52 lower than Merced for the office setting.

  • Indiana

    Indiana · 77439

    Office

    $15.59

    Facility

    Unavailable

    $1.19 lower than Merced for the office setting.

  • Kansas

    Kansas · 77439

    Office

    $15.46

    Facility

    Unavailable

    $1.32 lower than Merced for the office setting.

  • Kentucky

    Kentucky · 77439

    Office

    $15.37

    Facility

    Unavailable

    $1.41 lower than Merced for the office setting.

  • New Orleans

    Louisiana · 77439

    Office

    $15.68

    Facility

    Unavailable

    $1.10 lower than Merced for the office setting.

  • Rest Of Louisiana

    Louisiana · 77439

    Office

    $15.34

    Facility

    Unavailable

    $1.44 lower than Merced for the office setting.

  • Metropolitan Boston

    Massachusetts · 77439

    Office

    $17.61

    Facility

    Unavailable

    $0.83 higher than Merced for the office setting.

  • Rest Of Massachusetts

    Massachusetts · 77439

    Office

    $16.51

    Facility

    Unavailable

    $0.27 lower than Merced for the office setting.

  • Baltimore/Surr. Cntys

    Maryland · 77439

    Office

    $16.63

    Facility

    Unavailable

    $0.15 lower than Merced for the office setting.

  • Rest Of Maryland

    Maryland · 77439

    Office

    $16.20

    Facility

    Unavailable

    $0.58 lower than Merced for the office setting.

  • Rest Of Maine

    Maine · 77439

    Office

    $15.55

    Facility

    Unavailable

    $1.23 lower than Merced for the office setting.

  • Southern Maine

    Maine · 77439

    Office

    $15.98

    Facility

    Unavailable

    $0.80 lower than Merced for the office setting.

  • Detroit

    Michigan · 77439

    Office

    $15.82

    Facility

    Unavailable

    $0.96 lower than Merced for the office setting.

  • Rest Of Michigan

    Michigan · 77439

    Office

    $15.51

    Facility

    Unavailable

    $1.27 lower than Merced for the office setting.

  • Minnesota

    Minnesota · 77439

    Office

    $16.21

    Facility

    Unavailable

    $0.57 lower than Merced for the office setting.

  • Metropolitan Kansas City

    Missouri · 77439

    Office

    $15.67

    Facility

    Unavailable

    $1.11 lower than Merced for the office setting.

  • Metropolitan St. Louis

    Missouri · 77439

    Office

    $15.74

    Facility

    Unavailable

    $1.04 lower than Merced for the office setting.

  • Rest Of Missouri

    Missouri · 77439

    Office

    $15.20

    Facility

    Unavailable

    $1.58 lower than Merced for the office setting.

  • Mississippi

    Mississippi · 77439

    Office

    $15.20

    Facility

    Unavailable

    $1.58 lower than Merced for the office setting.

  • Montana**

    Montana · 77439

    Office

    $16.03

    Facility

    Unavailable

    $0.75 lower than Merced for the office setting.

  • North Carolina

    North Carolina · 77439

    Office

    $15.63

    Facility

    Unavailable

    $1.15 lower than Merced for the office setting.

  • North Dakota**

    North Dakota · 77439

    Office

    $16.03

    Facility

    Unavailable

    $0.75 lower than Merced for the office setting.

  • Nebraska

    Nebraska · 77439

    Office

    $15.57

    Facility

    Unavailable

    $1.21 lower than Merced for the office setting.

  • New Hampshire

    New Hampshire · 77439

    Office

    $16.28

    Facility

    Unavailable

    $0.50 lower than Merced for the office setting.

  • Northern Nj

    New Jersey · 77439

    Office

    $17.63

    Facility

    Unavailable

    $0.85 higher than Merced for the office setting.

  • Rest Of New Jersey

    New Jersey · 77439

    Office

    $16.99

    Facility

    Unavailable

    $0.21 higher than Merced for the office setting.

  • New Mexico

    New Mexico · 77439

    Office

    $15.53

    Facility

    Unavailable

    $1.25 lower than Merced for the office setting.

  • Nevada**

    Nevada · 77439

    Office

    $16.04

    Facility

    Unavailable

    $0.74 lower than Merced for the office setting.

  • Nyc Suburbs/Long Island

    New York · 77439

    Office

    $17.81

    Facility

    Unavailable

    $1.03 higher than Merced for the office setting.

  • Poughkpsie/N Nyc Suburbs

    New York · 77439

    Office

    $17.05

    Facility

    Unavailable

    $0.27 higher than Merced for the office setting.

  • Queens

    New York · 77439

    Office

    $17.77

    Facility

    Unavailable

    $0.99 higher than Merced for the office setting.

  • Rest Of New York

    New York · 77439

    Office

    $15.73

    Facility

    Unavailable

    $1.05 lower than Merced for the office setting.

  • Ohio

    Ohio · 77439

    Office

    $15.51

    Facility

    Unavailable

    $1.27 lower than Merced for the office setting.

  • Oklahoma

    Oklahoma · 77439

    Office

    $15.39

    Facility

    Unavailable

    $1.39 lower than Merced for the office setting.

  • Portland

    Oregon · 77439

    Office

    $16.86

    Facility

    Unavailable

    $0.08 higher than Merced for the office setting.

  • Rest Of Oregon

    Oregon · 77439

    Office

    $16.01

    Facility

    Unavailable

    $0.77 lower than Merced for the office setting.

  • Metropolitan Philadelphia

    Pennsylvania · 77439

    Office

    $16.46

    Facility

    Unavailable

    $0.32 lower than Merced for the office setting.

  • Rest Of Pennsylvania

    Pennsylvania · 77439

    Office

    $15.54

    Facility

    Unavailable

    $1.24 lower than Merced for the office setting.

  • Puerto Rico

    Puerto Rico · 77439

    Office

    $16.10

    Facility

    Unavailable

    $0.68 lower than Merced for the office setting.

  • Rhode Island

    Rhode Island · 77439

    Office

    $16.42

    Facility

    Unavailable

    $0.36 lower than Merced for the office setting.

  • South Carolina

    South Carolina · 77439

    Office

    $15.58

    Facility

    Unavailable

    $1.20 lower than Merced for the office setting.

  • South Dakota**

    South Dakota · 77439

    Office

    $16.03

    Facility

    Unavailable

    $0.75 lower than Merced for the office setting.

  • Tennessee

    Tennessee · 77439

    Office

    $15.49

    Facility

    Unavailable

    $1.29 lower than Merced for the office setting.

  • Austin

    Texas · 77439

    Office

    $16.40

    Facility

    Unavailable

    $0.38 lower than Merced for the office setting.

  • Beaumont

    Texas · 77439

    Office

    $15.49

    Facility

    Unavailable

    $1.29 lower than Merced for the office setting.

  • Brazoria

    Texas · 77439

    Office

    $16.06

    Facility

    Unavailable

    $0.72 lower than Merced for the office setting.

  • Dallas

    Texas · 77439

    Office

    $16.10

    Facility

    Unavailable

    $0.68 lower than Merced for the office setting.

  • Fort Worth

    Texas · 77439

    Office

    $16.04

    Facility

    Unavailable

    $0.74 lower than Merced for the office setting.

  • Galveston

    Texas · 77439

    Office

    $16.07

    Facility

    Unavailable

    $0.71 lower than Merced for the office setting.

  • Houston

    Texas · 77439

    Office

    $16.07

    Facility

    Unavailable

    $0.71 lower than Merced for the office setting.

  • Rest Of Texas

    Texas · 77439

    Office

    $15.73

    Facility

    Unavailable

    $1.05 lower than Merced for the office setting.

  • Utah

    Utah · 77439

    Office

    $15.67

    Facility

    Unavailable

    $1.11 lower than Merced for the office setting.

  • Virginia

    Virginia · 77439

    Office

    $15.93

    Facility

    Unavailable

    $0.85 lower than Merced for the office setting.

  • Virgin Islands

    United States Virgin Islands · 77439

    Office

    $16.10

    Facility

    Unavailable

    $0.68 lower than Merced for the office setting.

  • Vermont

    Vermont · 77439

    Office

    $15.97

    Facility

    Unavailable

    $0.81 lower than Merced for the office setting.

  • Rest Of Washington

    Washington · 77439

    Office

    $16.48

    Facility

    Unavailable

    $0.30 lower than Merced for the office setting.

  • Seattle (King Cnty)

    Washington · 77439

    Office

    $17.90

    Facility

    Unavailable

    $1.12 higher than Merced for the office setting.

  • Wisconsin

    Wisconsin · 77439

    Office

    $15.78

    Facility

    Unavailable

    $1.00 lower than Merced for the office setting.

  • West Virginia

    West Virginia · 77439

    Office

    $15.24

    Facility

    Unavailable

    $1.54 lower than Merced for the office setting.

  • Wyoming**

    Wyoming · 77439

    Office

    $16.03

    Facility

    Unavailable

    $0.75 lower than Merced for the office setting.

See how rates vary across the country

77439 · 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.

$15.18

$21.43

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

View all state and territory rates as a table
State / territoryRate rangeLocalities
AK$21.431
AL$15.281
AR$15.181
AZ$15.851
CA$16.78–$19.7929
CO$16.541
CT$16.701
DC$17.641
DE$16.011
FL$15.77–$16.283
GA$15.38–$16.162
GU$16.861
HI$16.861
IA$15.521
ID$15.551
IL$15.51–$16.264
IN$15.591
KS$15.461
KY$15.371
LA$15.34–$15.682
MA$16.51–$17.612
MD$16.20–$17.643
ME$15.55–$15.982
MI$15.51–$15.822
MN$16.211
MO$15.20–$15.743
MS$15.201
MT$16.031
NC$15.631
ND$16.031
NE$15.571
NH$16.281
NJ$16.99–$17.632
NM$15.531
NV$16.041
NY$15.73–$17.815
OH$15.511
OK$15.391
OR$16.01–$16.862
PA$15.54–$16.462
PR$16.101
RI$16.421
SC$15.581
SD$16.031
TN$15.491
TX$15.49–$16.408
UT$15.671
VA$15.93–$17.642
VI$16.101
VT$15.971
WA$16.48–$17.902
WI$15.781
WV$15.241
WY$16.031

Explore 77439 on the national rate map →

Where does this rate apply?

Merced is a Medicare payment area. Our Census mapping connects it to 24 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 77439 in Merced. This uses the base rate on this page, so the locality and release stay consistent.

Reference amount per service

$18.46

$16.78 × 110% = $18.46

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 77439 in Merced.

PPRRVU2026_Oct_nonQPP.csv

9,113

Code
77439
Physician work
0.30
Practice expense
0.18
Malpractice
0.00

GPCI2026.csv

15

Locality
Merced
Physician work
1.017
Practice expense
1.096
Malpractice
0.536
Office / nonfacility calculation for 77439 in Merced
ComponentRVULocality factorAdjusted
Physician work0.30× 1.0170.3051
Practice expense0.18× 1.0960.1973
Malpractice0.00× 0.5360.0000
Total RVUs0.5024
Conversion factor× 33.4009

Office / nonfacility rate, Merced$16.78

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

Open 77439 in the RVU calculator →

Explore RVUs, geographic factors and the full formula

Office / nonfacility

Office / nonfacility calculation inputs
ComponentRVULocal GPCI
Work0.31.017
Practice expense0.181.096
Malpractice00.536

(0.3 × 1.017 + 0.18 × 1.096 + 0 × 0.536) × $33.4009 = $16.78

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

77439 · Office / nonfacility

$16.78

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$16.78

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    Earliest loaded release: No rate

    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$16.78Not available in this settingRVU26D
2026-07-01$16.78Not available in this settingRVU26C
2026-04-01$16.78Not available in this settingRVU26B
2026-01-01$16.78Not 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

77439 billing questions

Which primary service should accompany 77439?

Report it with the applicable primary surface radiation delivery service. The primary code depends on the treatment type, including whether the radiation is superficial or orthovoltage.

Can 77439 be reported by itself?

No. CMS identifies it as an add-on that must be billed with a primary procedure, and payment falls within that procedure's global period.

When should modifier 26 or TC be used?

Use modifier 26 for the professional interpretation and modifier TC for the technical service, including equipment and staff. Reporting without a modifier represents the global service.

What documentation supports this service?

Document the ultrasound-guided placement performed and the imaging interpretation when billing the professional component. The record should also identify the accompanying surface radiation treatment service.

Is 77439 the same as radiation port imaging?

No. 77439 describes ultrasound-based placement guidance for surface radiation therapy; 77417 describes therapeutic radiology port imaging.

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 77439PPRRVU2026_Oct_nonQPP.csv, line 9,113 (RVU26D)
Geographic factors for MercedGPCI2026.csv, line 15 (RVU26D)