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CPT code 77061: Breast tomosynthesis, unilateral diagnostic2026 Medicare rate & RVUs

Unilateral diagnostic breast tomosynthesis creates layered mammographic views to evaluate a symptom or an abnormal screening finding in one breast.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare rate · 77061

Breast tomosynthesis, unilateral diagnostic

Office or facility?

Work RVUs
0
Total RVUs
0.00
Global days
XXX

National rate · 2026

—

Not priced in the facility setting.

See every locality for 77061 →Billed by an NP, PA or therapist? →

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

Your location

Medicare pays by the payment locality where the service is performed.

On this page 10 sections
  1. Medicare rate
  2. What 77061 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 77061 covers

This service uses mammographic X-ray images taken from multiple angles to create layered views of one breast for diagnostic evaluation. Breast imaging centers and radiology practices use it when assessing a symptom, such as a palpable finding, or further evaluating an abnormal screening result. It is the unilateral diagnostic code; bilateral diagnostic tomosynthesis and bilateral screening tomosynthesis have separate codes.

Medicare assigns CPT 77061 status I: it is not valid for Medicare reporting, and Medicare uses HCPCS G0279 to report and pay for diagnostic breast tomosynthesis. The CPT code denotes unilateral imaging, not a count of views or reconstructed slices. When conventional diagnostic mammography is also performed, the mammography service has its own code; unilateral diagnostic mammography is represented by 77065.

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.

Where 77061 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

77061 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailableUnavailable
AlaskaUnavailableUnavailable
ArizonaUnavailableUnavailable
ArkansasUnavailableUnavailable
Atlanta, GAUnavailableUnavailable
Austin, TXUnavailableUnavailable
Bakersfield, CAUnavailableUnavailable
Baltimore area, MDUnavailableUnavailable
Beaumont, TXUnavailableUnavailable
Brazoria, TXUnavailableUnavailable

77061 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.

View every state and territory as a table
77061 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

How the 77061 rate is calculated

Each of 77061’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 · 77061

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.00

0.00 RVUs× 1.000 GPCI

Practice expense0.00

0.00 RVUs× 1.000 GPCI

Malpractice0.00

0.00 RVUs× 1.000 GPCI

Adjusted RVUs

0.0000

Conversion factor

$33.4009

Medicare rate

$0.00

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

Payment rules and modifiers for 77061

The CMS indicators that decide how 77061 is paid alongside other services.

CMS payment indicators · 77061

Breast tomosynthesis, unilateral diagnostic

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)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

77061 without 26 · national facility

$0.00

Breast tomosynthesis, unilateral diagnostic

77061-26 · Professional component

$0.00

Pays only the interpretation and report.

When to use modifier 26

77061 compared with similar codes

Compare codes · National

5 codes, side by side

Office or facility?

  • 77061

    Breast tomosynthesis, unilateral diagnostic0 wRVU

    Not priced

  • 77062

    Breast tomosynthesis, diagnostic, bilateral0 wRVU

    Not priced

  • 77063

    Screening breast tomosynthesis, bilateral screening add-on0.59 wRVU

    $51.10

  • 77065

    Diagnostic mammogram, one breast, CAD included0.79 wRVU

    $123.92

  • G0279

    Diagnostic breast tomosynthesis, add-on to diagnostic mammography0.59 wRVU

    $40.42

How to choose

77062Breast tomosynthesisDiagnostic, bilateral
Both codes describe diagnostic breast tomosynthesis; 77061 is unilateral, while 77062 is bilateral.
77063Screening breast tomosynthesisBilateral screening add-on
77063 is for bilateral screening tomosynthesis. Use 77061 for diagnostic tomosynthesis of one breast.
77065Diagnostic mammogramOne breast, CAD included
77065 represents unilateral diagnostic mammography, not tomosynthesis. It may be reported separately when conventional diagnostic mammography is also performed.
G0279Diagnostic breast tomosynthesisAdd-on to diagnostic mammography
Medicare uses G0279 instead of CPT 77061 to report and pay for diagnostic breast tomosynthesis.

Codes related to 77061

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

Codes related to 77061
CodeHow it relatesNational office range
Same family
77062Breast tomosynthesis, diagnostic, bilateralBilateral diagnostic breast tomosynthesis, rather than unilateral.No office rate
Often billed with
77065Diagnostic mammogram, one breast, CAD includedUnilateral diagnostic mammography may accompany the same diagnostic examination.$109.48–$168.11
Used instead
G0279Diagnostic breast tomosynthesis, add-on to diagnostic mammographyMedicare uses this code instead of CPT 77061 for the service.$37.15–$51.10

77061 billing questions

When is 77061 used instead of 77062?

77061 represents diagnostic tomosynthesis of one breast. 77062 is the bilateral diagnostic tomosynthesis code.

Is 77061 for screening mammography?

No. It is for diagnostic evaluation of one breast. Bilateral screening tomosynthesis is represented by 77063.

What code does Medicare use instead?

Medicare does not accept CPT 77061; it uses HCPCS code G0279 to report and pay for the service.

Which code represents unilateral diagnostic mammography?

77065 represents unilateral diagnostic mammography, which is distinct from tomosynthesis.

Does 77061 represent one image or one breast?

It distinguishes tomosynthesis of one breast; it is not a count of individual views or reconstructed image slices.

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

Open CMS sourceHow we calculate rates

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