78725 Kidney function study
Also known as: renal function study, kidney function test, GFR scan
Nuclear medicine study to quantitatively assess overall renal function and glomerular filtration rate.
In Plain Language
kidney function measurement; kidney efficiency test
Clinical Context
Quantifies glomerular filtration rate to assess overall kidney function; particularly useful for monitoring chronic kidney disease progression or evaluating donor kidneys in transplant candidates.
RVU Breakdown
| Work RVU | 0.37 |
| Total RVU | 0.37 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
Radiology codes require a written order, clinical indication, and a formal interpretation report. The professional component (modifier -26) and technical component (modifier -TC) may be billed separately.
How This Code Compares
With a work RVU of 0.37, this code ranks in the 23rd percentile among Radiology codes — 2.2x below the median (0.81). The highest wRVU in this category is 11.57.
Specialties
Frequently Asked Questions
What is CPT code 78725?
CPT 78725 (Kidney function study) is a Radiology code. Nuclear medicine study to quantitatively assess overall renal function and glomerular filtration rate.
Who uses CPT code 78725?
CPT 78725 is used by Nuclear Medicine, Nephrology, Internal Medicine. Quantifies glomerular filtration rate to assess overall kidney function; particularly useful for monitoring chronic kidney disease progression or evaluating donor kidneys in transplant candidates.
When is CPT 78725 used?
Quantifies glomerular filtration rate to assess overall kidney function; particularly useful for monitoring chronic kidney disease progression or evaluating donor kidneys in transplant candidates.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.