$372.99
77049 is for MRI of both breasts with and without contrast; 77048 covers one breast.
On this page
CMS RVU26D · Effective 2026-10-01
77048 Breast MRI Medicare reimbursement rates in Guam
Reports MRI of one breast using images before and after contrast, including computer-aided detection when performed, for diagnostic breast evaluation. Compare 77048 office and facility rates across CMS payment localities in Guam.
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.
What does Medicare pay for 77048 in Guam?
Guam has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
$367.59
1 of 1 localities have a supported rate.
Payment area: Hawaii, Guam
One mapped payment locality.
Facility setting
No supported rate
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Radiology
About 77048: Unilateral breast MRI with and without contrast
Reports MRI of one breast using images before and after contrast, including computer-aided detection when performed, for diagnostic breast evaluation.
This service uses magnetic resonance imaging to evaluate one breast with images acquired before and after contrast administration. A radiologic technologist performs the scan, and a radiologist interprets the images. Common diagnostic situations include assessing the extent of a known breast cancer or investigating a concerning finding that needs further evaluation. Computer-aided detection is included when performed. For imaging both breasts with and without contrast, the bilateral code is used instead.
Report 77048 for one breast, not as a unilateral substitute when the documented examination covers both breasts. The order and imaging report should support the clinical reason for the MRI, the side examined, and the use of pre- and post-contrast imaging. The global service is reported without a component modifier; modifier 26 represents the interpretation, while modifier TC represents the equipment and staff. CMS applies the diagnostic imaging multiple-procedure reduction to both the professional and technical components when it applies.
CMS billing rules for 77048
- 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.
- Multiple procedures
- Diagnostic imaging multiple procedure reduction applies to the technical and professional components.
Where the value comes from
- Work RVU2.05 · 20%
- Practice expense (office) RVU7.80 · 78%
- Malpractice RVU0.15 · 2%
810
Medicare services in 2024 · #3134 by national volume
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.
77048 compared with similar codes
Office rates for Guam, from the same CMS release.
$234.16
77046 covers one breast but uses imaging without contrast. Choose 77048 when the examination includes both pre-contrast and post-contrast imaging.
$237.09
77047 is bilateral breast MRI without contrast. It differs from 77048 in both laterality and contrast protocol.
Compare 77048 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Hawaii, Guam →
Office / nonfacility
$367.59
Facility
Unavailable
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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 77048 in Hawaii, Guam.
PPRRVU2026_Oct_nonQPP.csv
8,955
- Code
- 77048
- Physician work
- 2.05
- Practice expense
- 7.80
- Malpractice
- 0.15
GPCI2026.csv
46
- Locality
- Hawaii, Guam
- Physician work
- 1.000
- Practice expense
- 1.137
- Malpractice
- 0.579
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 2.05 | × 1.000 | 2.0500 |
| Practice expense | 7.80 | × 1.137 | 8.8686 |
| Malpractice | 0.15 | × 0.579 | 0.0868 |
| Total RVUs | 11.0055 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Hawaii, Guam$367.59
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 2.05 | 1 |
| Practice expense | 7.8 | 1.137 |
| Malpractice | 0.15 | 0.579 |
(2.05 × 1 + 7.8 × 1.137 + 0.15 × 0.579) × $33.4009 = $367.59
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.
77048 billing questions
When should 77048 be chosen instead of 77049?
Use 77048 when the MRI covers one breast with and without contrast. Use 77049 when the documented examination covers both breasts with and without contrast.
How does 77048 differ from 77046?
Both are unilateral breast MRI codes, but 77048 describes imaging with and without contrast; 77046 is for imaging without contrast.
Is CAD separately reported with 77048?
No. Computer-aided detection is included in 77048 when performed.
How are the professional and technical services billed?
Report modifier 26 for the professional interpretation or modifier TC for the technical service. Without either modifier, the claim represents the global service.
Does a multiple-procedure reduction affect 77048?
CMS applies the diagnostic imaging multiple-procedure reduction to the professional and technical components when the reduction applies.
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.
8,95277047,,Mri breast c- bilateral,A,,1.56,4.82,,4.82,NA,0.10,6.48,6.48,1,XXX,0.00,0.00,0.00,4,2,0,0,0,9,,33.4009,09,0,88,7.81,7.81,0.11
8,95377047,26,Mri breast c- bilateral,A,,1.56,0.55,,0.55,,0.08,2.19,2.19,1,XXX,0.00,0.00,0.00,4,2,0,0,0,9,,33.4009,09,0,88,0.00,0.00,0.00
8,95477047,TC,Mri breast c- bilateral,A,,0.00,4.27,,4.27,NA,0.02,4.29,4.29,1,XXX,0.00,0.00,0.00,4,2,0,0,0,9,,33.4009,02,0,88,7.26,7.26,0.03
8,95577048,,Mri breast c-+ w/cad uni,A,,2.05,7.80,,7.80,NA,0.15,10.00,10.00,1,XXX,0.00,0.00,0.00,4,0,0,0,0,9,,33.4009,09,0,88,0.00,0.00,0.00
8,95677048,26,Mri breast c-+ w/cad uni,A,,2.05,0.73,,0.73,,0.12,2.90,2.90,1,XXX,0.00,0.00,0.00,4,0,0,0,0,9,,33.4009,09,0,88,0.00,0.00,0.00
8,95777048,TC,Mri breast c-+ w/cad uni,A,,0.00,7.07,,7.07,NA,0.03,7.10,7.10,1,XXX,0.00,0.00,0.00,4,0,0,0,0,9,,33.4009,02,0,88,0.00,0.00,0.00
8,95877049,,Mri breast c-+ w/cad bi,A,,2.24,7.77,,7.77,NA,0.16,10.17,10.17,1,XXX,0.00,0.00,0.00,4,2,0,0,0,9,,33.4009,09,0,88,0.00,0.00,0.00
4309102,FL,99,REST OF FLORIDA,1.000,0.956,1.503
4410212,GA,01,ATLANTA,1.003,1.016,1.201
4510212,GA,99,REST OF GEORGIA,1.000,0.892,1.192
4601212,HI,01,"HAWAII, GUAM",1.000,1.137,0.579
4702202,ID,00,IDAHO,1.000,0.920,0.473
4806102,IL,16,CHICAGO,1.007,1.005,2.295
4906102,IL,12,EAST ST. LOUIS,1.000,0.920,2.014