$232.14
Use 78707 for renal flow and function imaging without pharmacologic intervention. Use 78725 when the service quantifies kidney function through a clearance study.
On this page
CMS RVU26D · Effective 2026-10-01
78725 Kidney function study Medicare reimbursement rates in Guam
Reports a quantitative kidney-function study, such as renal clearance measurement, when the clinical question requires a measured functional result. Compare 78725 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 78725 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
$110.36
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.
Nuclear medicine
About 78725: Quantitative kidney clearance study
Reports a quantitative kidney-function study, such as renal clearance measurement, when the clinical question requires a measured functional result.
This service quantifies kidney function, commonly by measuring renal clearance rather than primarily depicting kidney anatomy or perfusion. A protocol may involve tracer administration and timed blood or urine measurements; the clearance calculation provides a functional result such as filtration. Nuclear medicine or radiology teams perform and interpret the study when the clinical question calls for a quantitative renal-function result rather than a visual renal scan.
Report 78725 when the documented procedure is a quantitative kidney-function or clearance study. The record should identify the indication, method, measurements, and physician interpretation of the calculated result. CMS recognizes professional and technical portions: report modifier 26 for the physician’s interpretation, modifier TC for equipment and staff, or no component modifier for the global service. The interpretation should support the professional portion, and the technical record should support performance of the protocol and measurements.
CMS billing rules for 78725
- 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.
Where the value comes from
- Work RVU0.37 · 12%
- Practice expense (office) RVU2.55 · 86%
- Malpractice RVU0.06 · 2%
183
Medicare services in 2024 · #4406 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.
78725 compared with similar codes
Office rates for Guam, from the same CMS release.
$188.51
78708 describes renal flow and function imaging with pharmacologic intervention; 78725 describes quantitative kidney-function or clearance measurement.
$171.18
78700 is for imaging kidney morphology. Choose 78725 for a quantitative functional measurement such as renal clearance.
Compare 78725 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
$110.36
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 78725 in Hawaii, Guam.
PPRRVU2026_Oct_nonQPP.csv
9,497
- Code
- 78725
- Physician work
- 0.37
- Practice expense
- 2.55
- Malpractice
- 0.06
GPCI2026.csv
46
- Locality
- Hawaii, Guam
- Physician work
- 1.000
- Practice expense
- 1.137
- Malpractice
- 0.579
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.37 | × 1.000 | 0.3700 |
| Practice expense | 2.55 | × 1.137 | 2.8993 |
| Malpractice | 0.06 | × 0.579 | 0.0347 |
| Total RVUs | 3.3041 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Hawaii, Guam$110.36
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0.37 | 1 |
| Practice expense | 2.55 | 1.137 |
| Malpractice | 0.06 | 0.579 |
(0.37 × 1 + 2.55 × 1.137 + 0.06 × 0.579) × $33.4009 = $110.36
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.
78725 billing questions
How is 78725 different from renal flow and function imaging?
78725 is for a quantitative kidney-function or clearance study. Codes 78707–78709 describe renal flow and function imaging, with the applicable code depending on the study performed.
When should modifier 26 or TC be used?
Use modifier 26 for the physician’s interpretation and modifier TC for the technical service, including equipment and staff. Submit the global service without either component modifier when billing both portions together.
What documentation supports 78725?
Document the clinical indication, clearance method and measurements, and the resulting physician interpretation. The technical record should show that the study protocol and measurements were performed.
Can 78725 be reported with renal imaging on the same date?
Choose the code for the service actually performed: quantitative clearance for 78725, or the applicable renal imaging code for an imaging study. Documentation should establish the services performed rather than relying only on the shared renal-function indication.
Does 78725 describe an anatomic kidney scan?
No. It describes quantitative assessment of kidney function, such as renal clearance; codes 78700 and 78701 describe renal imaging services.
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.
9,49478709,,K flow/funct image multiple,A,,1.37,8.27,,8.27,NA,0.13,9.77,9.77,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,16.93,16.93,0.20
9,49578709,26,K flow/funct image multiple,A,,1.37,0.45,,0.45,,0.07,1.89,1.89,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,49678709,TC,K flow/funct image multiple,A,,0.00,7.82,,7.82,NA,0.06,7.88,7.88,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,01,0,99,16.48,16.48,0.13
9,49778725,,Kidney function study,A,,0.37,2.55,,2.55,NA,0.06,2.98,2.98,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,49878725,26,Kidney function study,A,,0.37,0.12,,0.12,,0.02,0.51,0.51,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
9,49978725,TC,Kidney function study,A,,0.00,2.43,,2.43,NA,0.04,2.47,2.47,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,01,0,99,0.00,0.00,0.00
9,50078730,,Urinary bladder retention,A,,0.15,2.03,,2.03,NA,0.01,2.19,2.19,1,ZZZ,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
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