78740 Ureteral reflux study
Also known as: reflux study, voiding cystography
Nuclear medicine study to detect and quantify ureteral reflux (backflow of urine from bladder to ureters).
In Plain Language
urine backup test; reflux imaging
Clinical Context
Evaluates for vesicoureteral reflux, particularly in children with recurrent urinary tract infections or abnormal bladder-ureteral anatomy; assesses severity and laterality of reflux.
RVU Breakdown
| Work RVU | 0.56 |
| Total RVU | 0.56 |
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 0.56, this code ranks in the 34th percentile among Radiology codes — 1.4x below the median (0.81). The highest wRVU in this category is 11.57.
Specialties
Frequently Asked Questions
What is CPT code 78740?
CPT 78740 (Ureteral reflux study) is a Radiology code. Nuclear medicine study to detect and quantify ureteral reflux (backflow of urine from bladder to ureters).
Who uses CPT code 78740?
CPT 78740 is used by Nuclear Medicine, Urology, Pediatrics. Evaluates for vesicoureteral reflux, particularly in children with recurrent urinary tract infections or abnormal bladder-ureteral anatomy; assesses severity and laterality of reflux.
When is CPT 78740 used?
Evaluates for vesicoureteral reflux, particularly in children with recurrent urinary tract infections or abnormal bladder-ureteral anatomy; assesses severity and laterality of reflux.
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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.