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CPT code 77768: Skin brachytherapy, surface field over 2 cm2026 Medicare rate & RVUs in New Mexico

Reports one fraction of high-dose-rate radionuclide brachytherapy delivered to skin through a surface applicator for a treated area greater than 2 cm.

CMS RVU26DEffective Oct 1, 2026One payment locality6.5K Medicare services in 2024

In New Mexico, Medicare pays $343.48 for 77768 in the office.

$343.48Office (non-facility)
Not available in this settingHospital or facility
−6.9%vs the national office rate ($369.08)

Check a contract rate as a % of Medicare · 77768 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 77768 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in New Mexico
  2. What 77768 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 77768 covers

Code 77768 represents a single fraction of high-dose-rate brachytherapy delivered to a skin lesion or lesions using a surface applicator, for a treated area greater than 2 cm in diameter. Radiation oncologists commonly use this approach for selected superficial skin cancers, such as basal cell carcinoma, when treatment is delivered with a high-dose-rate radionuclide source. The service includes the surface applicator and basic dosimetry; it is distinct from placing a source within a body cavity or tissue.

Report the code for each fraction that meets the size criterion, using the documented treatment field or applicator dimensions to support selection over 77767. The record should identify the treated site, fraction delivered, applicator or treatment dimensions, and dosimetry. CMS allows separate professional and technical component billing: modifier 26 identifies the professional component, modifier TC the technical component, and no modifier reports the global service. Basic dosimetry is included in the service.

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 New Mexico compares for 77768

Across 109 of 109 payment localities, the office rate for 77768 runs from $322.00 in Arkansas to $513.09 in San Benito County, CA. New Mexico pays $343.48. The RVUs are the same everywhere; the geographic indexes change the dollars.

77768 in New Mexico vs other payment areas
  1. New Mexico · this page$343.48
  2. Los Angeles, CA · California$427.87+$84.39
  3. Washington, DC area · District of Columbia$428.82+$85.34
  4. Miami, FL · Florida$388.80+$45.32
  5. Chicago, IL · Illinois$376.62+$33.14
  6. Manhattan, NY · New York$426.23+$82.75
  7. Alaska · Alaska$410.74+$67.26

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

Every other payment area

77768 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$327.32—
ArkansasArkansas$322.00—
ArizonaArizona$358.57—
Bakersfield, CACalifornia$398.87—
Chico, CACalifornia$398.47—
El Centro, CACalifornia$398.49—
Fresno, CACalifornia$398.47—
Hanford, CACalifornia$398.47—

77768 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.

$322.00

$455.78

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

View every state and territory as a table
77768 office rate range by state
State / territoryOffice rate rangeLocalities
AK$410.741
AL$327.321
AR$322.001
AZ$358.571
CA$398.47–$513.0929
CO$389.091
CT$395.471
DC$428.821
DE$365.041
FL$357.23–$388.803
GA$335.46–$375.192
GU$410.951
HI$410.951
IA$339.351
ID$341.271
IL$343.77–$381.364
IN$343.561
KS$336.301
KY$333.301
LA$332.22–$350.852
MA$385.84–$432.362
MD$373.01–$428.823
ME$341.92–$364.612
MI$341.89–$360.892
MN$375.271
MO$324.95–$353.783
MS$323.611
MT$369.071
NC$346.141
ND$366.501
NE$341.821
NH$381.621
NJ$400.68–$423.292
NM$343.481
NV$368.671
NY$351.84–$436.025
OH$341.361
OK$333.981
OR$366.51–$404.112
PA$342.68–$383.822
PR$372.521
RI$380.011
SC$344.191
SD$366.201
TN$338.041
TX$340.06–$387.188
UT$349.501
VA$362.38–$428.822
VI$372.521
VT$363.751
WA$385.54–$442.982
WI$352.681
WV$329.171
WY$367.951

See 77768 in every payment locality

How the 77768 rate is calculated

Each of 77768’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 · 77768

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.37

1.37 RVUs× 1.000 GPCI

Practice expense9.55

9.55 RVUs× 1.000 GPCI

Malpractice0.13

0.13 RVUs× 1.000 GPCI

Adjusted RVUs

11.0500

Conversion factor

$33.4009

Medicare rate

$369.08

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

The exact New Mexico inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

9,157

Code
77768
Physician work
1.37
Practice expense
9.55
Malpractice
0.13

GPCI2026.csv

77

Locality
New Mexico
Physician work
1.000
Practice expense
0.917
Malpractice
1.201
Office calculation for 77768 in New Mexico
ComponentRVULocality factorAdjusted
Physician work1.37× 1.0001.3700
Practice expense9.55× 0.9178.7574
Malpractice0.13× 1.2010.1561
Total RVUs10.2835
Conversion factor× 33.4009

Office rate, New Mexico$343.48

Office: (1.37 × 1 + 9.55 × 0.917 + 0.13 × 1.201) × $33.4009 = $343.48

Open 77768 in the RVU calculator

Payment rules and modifiers for 77768

The CMS indicators that decide how 77768 is paid alongside other services.

CMS payment indicators · 77768

Skin brachytherapy, surface field over 2 cm

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures0No multiple-procedure reduction.
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

77768 without 26 · national office

$369.08

Skin brachytherapy, surface field over 2 cm

77768-26 · Professional component

$73.82

Pays only the interpretation and report.

When to use modifier 26

Codes related to 77768

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

Codes related to 77768
CodeHow it relatesOffice range, New Mexico
Same family
77767Skin brachytherapy, one channelReports the same high-dose-rate skin surface treatment for an area 2 cm in diameter or less.$233.70
Used instead
77770HDR brachytherapy, single channel, per fractionHigh-dose-rate brachytherapy for interstitial or intracavitary treatment rather than a skin surface field.$326.88
77771HDR brachytherapy, interstitial or intracavitary, intermediateHigher-complexity interstitial or intracavitary high-dose-rate brachytherapy, not surface treatment.$573.04
77772HDR brachytherapy, more than 12 channelsAnother interstitial or intracavitary high-dose-rate brachytherapy level, distinguished from skin surface delivery.$857.23
77789Surface brachytherapy, low-dose-rate applicationSurface radiation-source application reported for a different surface brachytherapy approach.$125.64

How 77768 has changed in New Mexico

77768 · Office / nonfacility

$343.48

Effective 2026-10-01

The base rate is $13.74 higher than on 2025-10-01, moving from $329.74 to $343.48 (4.2%).

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

    $329.74changed to$343.48

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.40 changed to 1.37
    • Practice expense RVU 9.53 changed to 9.55
    • Malpractice RVU 0.12 changed to 0.13
    • Practice expense GPCI 0.908 changed to 0.917
    • Malpractice GPCI 1.172 changed to 1.201

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $337.60changed to$329.74

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 9.46 changed to 9.53
    • Malpractice RVU 0.13 changed to 0.12

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $332.09changed to$337.60

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $338.08changed to$332.09

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 9.34 changed to 9.46
    • Practice expense GPCI 0.902 changed to 0.908
    • Malpractice GPCI 1.169 changed to 1.172

  5. January 1, 2023

    RVU23A

    $335.77changed to$338.08

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 9.11 changed to 9.34
    • Malpractice RVU 0.12 changed to 0.13
    • Practice expense GPCI 0.896 changed to 0.902
    • Malpractice GPCI 1.166 changed to 1.169

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $339.61changed to$335.77

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 9.17 changed to 9.11
    • Malpractice RVU 0.10 changed to 0.12

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $338.77changed to$339.61

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 8.65 changed to 9.17
    • Malpractice RVU 0.11 changed to 0.10
    • Practice expense GPCI 0.908 changed to 0.896
    • Malpractice GPCI 1.207 changed to 1.166

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $341.85changed to$338.77

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 8.63 changed to 8.65
    • Practice expense GPCI 0.921 changed to 0.908
    • Malpractice GPCI 1.247 changed to 1.207

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $343.13changed to$341.85

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 8.68 changed to 8.63

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $335.65changed to$343.13

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 8.50 changed to 8.68
    • Practice expense GPCI 0.920 changed to 0.921
    • Malpractice GPCI 1.204 changed to 1.247

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $332.41changed to$335.65

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 8.44 changed to 8.50
    • Practice expense GPCI 0.919 changed to 0.920
    • Malpractice GPCI 1.161 changed to 1.204

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    No ratechanged to$332.41

    Held through RVU16B, RVU16C, RVU16D.

  13. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$343.48Not available in this settingRVU26D
2026-07-01$343.48Not available in this settingRVU26C
2026-04-01$343.48Not available in this settingRVU26B
2026-01-01$343.48Not available in this settingRVU26A
2025-10-01$329.74Not available in this settingRVU25D
2025-07-01$329.74Not available in this settingRVU25C
2025-04-01$329.74Not available in this settingRVU25B
2025-01-01$329.74Not available in this settingRVU25A
2024-10-01$337.60Not available in this settingRVU24D
2024-07-01$337.60Not available in this settingRVU24C
2024-04-01$337.60Not available in this settingRVU24B
2024-03-09$337.60Not available in this settingRVU24AR
2024-01-01$332.09Not available in this settingRVU24A
2023-10-01$338.08Not available in this settingRVU23D
2023-07-01$338.08Not available in this settingRVU23C
2023-04-01$338.08Not available in this settingRVU23B
2023-01-01$338.08Not available in this settingRVU23A
2022-10-01$335.77Not available in this settingRVU22D
2022-07-01$335.77Not available in this settingRVU22C
2022-04-01$335.77Not available in this settingRVU22B
2022-01-01$335.77Not available in this settingRVU22A
2021-10-01$339.61Not available in this settingRVU21D
2021-07-01$339.61Not available in this settingRVU21C
2021-04-01$339.61Not available in this settingRVU21B
2021-01-01$339.61Not available in this settingRVU21A
2020-10-01$338.77Not available in this settingRVU20D
2020-07-01$338.77Not available in this settingRVU20C
2020-04-01$338.77Not available in this settingRVU20B
2020-01-01$338.77Not available in this settingRVU20A
2019-10-01$341.85Not available in this settingRVU19D
2019-07-01$341.85Not available in this settingRVU19C
2019-04-01$341.85Not available in this settingRVU19B
2019-01-01$341.85Not available in this settingRVU19A
2018-10-01$343.13Not available in this settingRVU18D
2018-07-01$343.13Not available in this settingRVU18C
2018-04-01$343.13Not available in this settingRVU18B
2018-01-01$343.13Not available in this settingRVU18AR1
2017-10-01$335.65Not available in this settingRVU17D
2017-07-01$335.65Not available in this settingRVU17C
2017-04-01$335.65Not available in this settingRVU17B
2017-01-01$335.65Not available in this settingRVU17A
2016-10-01$332.41Not available in this settingRVU16D
2016-07-01$332.41Not available in this settingRVU16C
2016-04-01$332.41Not available in this settingRVU16B
2016-01-01$332.41Not available in this settingRVU16A
2015-10-01Not in this releaseNot in this releaseRVU15D
2015-07-01Not in this releaseNot in this releaseRVU15C
2015-04-01Not in this releaseNot in this releaseRVU15B
2015-01-01Not in this releaseNot in this releaseRVU15A
2014-10-01Not in this releaseNot in this releaseRVU14D
2014-07-01Not in this releaseNot in this releaseRVU14C
2014-04-01Not in this releaseNot in this releaseRVU14B
2014-01-01Not in this releaseNot in this releaseRVU14A
2013-10-01Not in this releaseNot in this releaseRVU13D
2013-07-01Not in this releaseNot in this releaseRVU13C
2013-04-01Not in this releaseNot in this releaseRVU13B
2013-01-01Not in this releaseNot in this releaseRVU13AR

Price 77768 for an earlier date of service

Where the New Mexico rate applies

New Mexico is a Medicare payment area, not a city. Our Census mapping connects it to 528 cities and communities in New Mexico. Some span more than one payment area; confirm with the service ZIP.

  • Abeytas
  • Abiquiu
  • Acomita Lake
  • Adelino
  • Agua Fria
  • Alamillo
  • Alamo
  • Alamogordo

Browse all communities in New Mexico

77768 billing questions

How does 77768 differ from 77767?

Both report high-dose-rate skin surface brachytherapy per fraction. Use 77768 when the treated surface area is greater than 2 cm in diameter; 77767 is for 2 cm or less.

Is basic dosimetry separately reportable?

Basic dosimetry is included in 77768. The treatment documentation should support the dosimetry and the delivered fraction.

Can the professional and technical components be billed separately?

Yes. Modifier 26 identifies the professional component, and modifier TC identifies the technical component. Reporting without either modifier represents the global service.

Is the code reported once for the entire treatment course?

No. The code is reported per fraction, so the record should support each fraction delivered.

What documentation supports choosing 77768?

Document the skin treatment site, fraction delivered, and treated-field or applicator dimensions showing an area greater than 2 cm in diameter.

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 77768PPRRVU2026_Oct_nonQPP.csv, line 9,157 (RVU26D)
Geographic factors for New MexicoGPCI2026.csv, line 77 (RVU26D)

Open CMS sourceHow we calculate rates

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