Billing code 77063: Screening breast tomosynthesisMedicare rate & RVUs in Washington
Report bilateral screening breast tomosynthesis as an add-on when three-dimensional images of both breasts are acquired and interpreted with a screening mammogram.
Medicare pays $52.73–$58.80 for 77063 in the office in Washington, from Rest Of Washington to Seattle (King Cnty). Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 77063 covers
This service adds tomosynthesis images of both breasts to a screening mammogram. An x-ray tube moves across each compressed breast, and the acquired images are reconstructed into thin slices that help the radiologist assess overlapping tissue. A mammography technologist obtains the images in a hospital outpatient department, freestanding imaging center, or mobile mammography unit. The radiologist interprets the tomosynthesis images alongside the screening mammogram’s standard or synthesized two-dimensional images.
Report 77063 once with bilateral screening mammography code 77067 when tomosynthesis of both breasts is performed and interpreted; it cannot be reported alone. The report should document bilateral tomosynthesis and its interpretation. As an add-on, 77063 is paid within the primary procedure’s global period. Its price already accounts for both breasts, so modifier 50 does not increase payment. Modifier 26 identifies the radiologist’s interpretation, modifier TC identifies the equipment and staff portion, and an unmodified claim represents the global service. For Medicare diagnostic tomosynthesis, use G0279 with the applicable diagnostic mammography code instead.
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 77063 pays more and less in Washington
| Payment locality | Office | Facility |
|---|---|---|
| Rest Of Washington | $52.73 | Unavailable |
| Seattle (King Cnty) | $58.80 | Unavailable |
How the 77063 rate is calculated
Each of 77063’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 · 77063
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 0.59Practice expense 0.91Malpractice 0.03
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 77063
The CMS indicators that decide how 77063 is paid alongside other services.
CMS payment indicators · 77063
Screening breast tomosynthesis
| Rule | CMS value | What it means |
|---|---|---|
| Global period | ZZZ | Add-on code: falls within the primary procedure’s global period. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 2 | Already bilateral by definition: paid once at 100%. |
| Assistant at surgery (80/81/82/AS) | 9 | The concept doesn’t apply. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
77063 without 26 · national office
$51.10
Screening breast tomosynthesis
77063-26 · Professional component
$27.72
Pays only the interpretation and report.
77063 compared with similar codes
Compare codes
77063 vs 77062 vs G0279 vs 77067 vs 77061: national Medicare rates
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How to choose
- 77062Breast tomosynthesis bi
- 77062 is bilateral diagnostic tomosynthesis. 77063 is limited to screening and is paired with 77067. For Medicare diagnostic tomosynthesis, report G0279 instead.
- G0279Diagnostic breast tomosynthesis
- G0279 is Medicare’s tomosynthesis add-on for diagnostic mammograms reported with 77065 or 77066. Use 77063 when bilateral tomosynthesis accompanies a screening mammogram.
- 77067Screening mammogram
- 77067 reports bilateral screening mammography and is the required primary code. Add 77063 when bilateral screening tomosynthesis images are also acquired and interpreted.
- 77061Breast tomosynthesis uni
- 77061 describes diagnostic tomosynthesis of one breast. 77063 covers tomosynthesis of both breasts with a screening mammogram.
77063 billing questions
Can 77063 be billed without a screening mammogram?
No. It is an add-on to bilateral screening mammography code 77067 and is reported when bilateral screening tomosynthesis is also performed.
Which code is used for tomosynthesis during a diagnostic mammogram for Medicare?
Medicare uses add-on code G0279 with diagnostic mammography code 77065 or 77066. Do not use 77063 for diagnostic tomosynthesis.
Should modifier 50 or two units be reported?
No. Report one unit for tomosynthesis of both breasts. The code is already priced as bilateral, so modifier 50 does not increase payment.
How is billing split between a hospital and a reading radiologist?
The radiologist reports 77063-26 for the interpretation, while the hospital bills for the technical service. A freestanding imaging center may report 77063-TC for its technical portion or the unmodified global code when it furnishes both portions.
What if screening leads to a diagnostic workup the same day?
Report the diagnostic mammogram when performed, adding G0279 if diagnostic tomosynthesis is performed. Medicare requires modifier GG on the diagnostic mammography code when screening and diagnostic mammograms are performed for the same patient on the same day.
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
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