HCPCS code G0279: Diagnostic breast tomosynthesis, add-on to diagnostic mammography2026 Medicare rate & RVUs in New Mexico

Medicare add-on for digital breast tomosynthesis during a diagnostic mammogram, reported once with 77065 or 77066 whether one or both breasts are imaged.

CMS RVU26DEffective Oct 1, 2026One payment locality1M Medicare services in 2024

In New Mexico, Medicare pays $38.98 for G0279 in the office.

$38.98Office (non-facility)
Not available in this settingHospital or facility
−3.6%vs the national office rate ($40.42)

Check a contract rate as a % of Medicare · G0279 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 G0279 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in New Mexico
  2. What G0279 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 G0279 covers

G0279 covers digital breast tomosynthesis (DBT), often called 3D mammography, performed as part of a diagnostic mammogram. The tomosynthesis unit acquires low-dose projections from multiple angles, which are reconstructed into thin slices. A radiologist uses them to evaluate a palpable lump, nipple discharge, a callback from screening, or a finding under short-interval follow-up. Technologists acquire the images in hospital outpatient breast centers and freestanding imaging facilities. A radiologist interprets the slices alongside the mammographic views.

Report G0279 only with diagnostic mammography code 77065 (one breast) or 77066 (both breasts). Document that tomosynthesis was performed and identify the breast or breasts imaged. Report one unit whether tomosynthesis examines one or both breasts: the code is priced as bilateral, so modifier 50 does not increase payment. As an add-on, it is paid within the primary procedure’s global period. Use modifier 26 for interpretation, modifier TC for the equipment and staff portion, or no component modifier when one entity bills the global 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 G0279

Across 109 of 109 payment localities, the office rate for G0279 runs from $37.15 in Arkansas to $51.10 in Alaska. New Mexico pays $38.98. The RVUs are the same everywhere; the geographic indexes change the dollars.

G0279 in New Mexico vs other payment areas
  1. New Mexico · this page$38.98
  2. Los Angeles, CA · California$44.49+$5.51
  3. Washington, DC area · District of Columbia$45.10+$6.12
  4. Miami, FL · Florida$42.76+$3.78
  5. Chicago, IL · Illinois$41.95+$2.97
  6. Manhattan, NY · New York$45.46+$6.48
  7. Alaska · Alaska$51.10+$12.12

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

Every other payment area

G0279 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$37.52—
ArkansasArkansas$37.15—
ArizonaArizona$39.66—
Bakersfield, CACalifornia$42.29—
Chico, CACalifornia$42.18—
El Centro, CACalifornia$42.18—
Fresno, CACalifornia$42.18—
Hanford, CACalifornia$42.18—

G0279 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.

$37.15

$51.10

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

View every state and territory as a table
G0279 office rate range by state
State / territoryOffice rate rangeLocalities
AK$51.101
AL$37.521
AR$37.151
AZ$39.661
CA$42.18–$50.8329
CO$41.691
CT$42.541
DC$45.101
DE$40.181
FL$40.05–$42.763
GA$38.48–$40.992
GU$42.691
HI$42.691
IA$38.141
ID$38.311
IL$39.26–$41.954
IN$38.461
KS$38.031
KY$38.141
LA$38.11–$39.392
MA$41.57–$44.942
MD$40.77–$45.103
ME$38.46–$39.872
MI$38.83–$40.412
MN$40.281
MO$37.67–$39.473
MS$37.411
MT$40.411
NC$38.731
ND$39.821
NE$38.271
NH$41.101
NJ$43.11–$44.882
NM$38.981
NV$40.271
NY$39.13–$46.265
OH$38.711
OK$38.081
OR$40.04–$42.662
PA$38.74–$41.772
PR$40.621
RI$41.331
SC$38.771
SD$39.751
TN$38.161
TX$38.57–$41.488
UT$39.131
VA$39.79–$45.102
VI$40.621
VT$39.721
WA$41.48–$45.692
WI$38.891
WV$38.271
WY$40.151

See G0279 in every payment locality

How the G0279 rate is calculated

Each of G0279’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 · G0279

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.59

0.59 RVUs× 1.000 GPCI

Practice expense0.59

0.59 RVUs× 1.000 GPCI

Malpractice0.03

0.03 RVUs× 1.000 GPCI

Adjusted RVUs

1.2100

Conversion factor

$33.4009

Medicare rate

$40.42

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

15,167

Code
G0279
Physician work
0.59
Practice expense
0.59
Malpractice
0.03

GPCI2026.csv

77

Locality
New Mexico
Physician work
1.000
Practice expense
0.917
Malpractice
1.201
Office calculation for G0279 in New Mexico
ComponentRVULocality factorAdjusted
Physician work0.59× 1.0000.5900
Practice expense0.59× 0.9170.5410
Malpractice0.03× 1.2010.0360
Total RVUs1.1671
Conversion factor× 33.4009

Office rate, New Mexico$38.98

Office: (0.59 × 1 + 0.59 × 0.917 + 0.03 × 1.201) × $33.4009 = $38.98

Open G0279 in the RVU calculator

Payment rules and modifiers for G0279

The CMS indicators that decide how G0279 is paid alongside other services.

CMS payment indicators · G0279

Diagnostic breast tomosynthesis, add-on to diagnostic mammography

RuleCMS valueWhat it means
Global periodZZZAdd-on code: falls within the primary procedure’s global period.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)2Already bilateral by definition: paid once at 100%.
Assistant at surgery (80/81/82/AS)9The concept doesn’t apply.
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

G0279 without 26 · national office

$40.42

Diagnostic breast tomosynthesis, add-on to diagnostic mammography

G0279-26 · Professional component

$27.72

Pays only the interpretation and report.

When to use modifier 26

How G0279 has changed in New Mexico

G0279 · Office / nonfacility

$38.98

Effective 2026-10-01

The base rate is $1.83 lower than on 2025-10-01, moving from $40.81 to $38.98 (4.5%).

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

    $40.81changed to$38.98

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.60 changed to 0.59
    • Practice expense RVU 0.69 changed to 0.59
    • 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

    $45.02changed to$40.81

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 0.79 changed to 0.69

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $44.29changed to$45.02

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $50.65changed to$44.29

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 0.94 changed to 0.79
    • Malpractice RVU 0.04 changed to 0.03
    • Practice expense GPCI 0.902 changed to 0.908
    • Malpractice GPCI 1.169 changed to 1.172
  5. January 1, 2023

    RVU23A

    $50.90changed to$50.65

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 0.92 changed to 0.94
    • 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

    $52.26changed to$50.90

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 0.95 changed to 0.92

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $53.11changed to$52.26

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 0.92 changed to 0.95
    • Malpractice RVU 0.03 changed to 0.04
    • 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

    $53.51changed to$53.11

    • Conversion factor 36.0391 changed to 36.0896
    • 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

    $53.78changed to$53.51

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 0.93 changed to 0.92

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $53.87changed to$53.78

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 0.94 changed to 0.93
    • 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

    $53.33changed to$53.87

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 0.93 changed to 0.94
    • 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

    $54.36changed to$53.33

    • Conversion factor 35.9335 changed to 35.8043
    • Malpractice RVU 0.05 changed to 0.03

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $54.09changed to$54.36

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    No ratechanged to$54.09

    Held through RVU15B.

  15. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$38.98Not available in this settingRVU26D
2026-07-01$38.98Not available in this settingRVU26C
2026-04-01$38.98Not available in this settingRVU26B
2026-01-01$38.98Not available in this settingRVU26A
2025-10-01$40.81Not available in this settingRVU25D
2025-07-01$40.81Not available in this settingRVU25C
2025-04-01$40.81Not available in this settingRVU25B
2025-01-01$40.81Not available in this settingRVU25A
2024-10-01$45.02Not available in this settingRVU24D
2024-07-01$45.02Not available in this settingRVU24C
2024-04-01$45.02Not available in this settingRVU24B
2024-03-09$45.02Not available in this settingRVU24AR
2024-01-01$44.29Not available in this settingRVU24A
2023-10-01$50.65Not available in this settingRVU23D
2023-07-01$50.65Not available in this settingRVU23C
2023-04-01$50.65Not available in this settingRVU23B
2023-01-01$50.65Not available in this settingRVU23A
2022-10-01$50.90Not available in this settingRVU22D
2022-07-01$50.90Not available in this settingRVU22C
2022-04-01$50.90Not available in this settingRVU22B
2022-01-01$50.90Not available in this settingRVU22A
2021-10-01$52.26Not available in this settingRVU21D
2021-07-01$52.26Not available in this settingRVU21C
2021-04-01$52.26Not available in this settingRVU21B
2021-01-01$52.26Not available in this settingRVU21A
2020-10-01$53.11Not available in this settingRVU20D
2020-07-01$53.11Not available in this settingRVU20C
2020-04-01$53.11Not available in this settingRVU20B
2020-01-01$53.11Not available in this settingRVU20A
2019-10-01$53.51Not available in this settingRVU19D
2019-07-01$53.51Not available in this settingRVU19C
2019-04-01$53.51Not available in this settingRVU19B
2019-01-01$53.51Not available in this settingRVU19A
2018-10-01$53.78Not available in this settingRVU18D
2018-07-01$53.78Not available in this settingRVU18C
2018-04-01$53.78Not available in this settingRVU18B
2018-01-01$53.78Not available in this settingRVU18AR1
2017-10-01$53.87Not available in this settingRVU17D
2017-07-01$53.87Not available in this settingRVU17C
2017-04-01$53.87Not available in this settingRVU17B
2017-01-01$53.87Not available in this settingRVU17A
2016-10-01$53.33Not available in this settingRVU16D
2016-07-01$53.33Not available in this settingRVU16C
2016-04-01$53.33Not available in this settingRVU16B
2016-01-01$53.33Not available in this settingRVU16A
2015-10-01$54.36Not available in this settingRVU15D
2015-07-01$54.36Not available in this settingRVU15C
2015-04-01$54.09Not available in this settingRVU15B
2015-01-01$54.09Not available in this settingRVU15A
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 G0279 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

G0279 billing questions

Can G0279 be reported with a screening mammogram?

No. G0279 accompanies diagnostic mammography with 77065 or 77066. Tomosynthesis added to a screening mammogram (77067) is reported with add-on 77063 instead.

Why bill G0279 to Medicare instead of CPT 77061 or 77062?

Medicare uses G0279 with the diagnostic mammography code rather than paying the CPT diagnostic tomosynthesis codes 77061 and 77062.

How many units are reported if both breasts receive tomosynthesis?

One unit. G0279 covers unilateral or bilateral tomosynthesis and is already priced as bilateral; do not add modifier 50 or a second unit.

How is G0279 split between a hospital and a radiology group?

The radiologist bills G0279-26 for interpretation. The hospital reports its facility service through hospital outpatient billing; an entity billing the technical portion on the physician fee schedule uses G0279-TC. Each bills the applicable portion of 77065 or 77066 as well.

What documentation supports G0279?

The record should show that diagnostic tomosynthesis images were acquired and interpreted, identify the breast or breasts examined, and support the accompanying diagnostic mammogram.

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 G0279PPRRVU2026_Oct_nonQPP.csv, line 15,167 (RVU26D)
Geographic factors for New MexicoGPCI2026.csv, line 77 (RVU26D)

Open CMS sourceHow we calculate rates

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