77770 Hdr rdncl ntrstl/icav brchtx
Also known as: HDR interstitial simple, HDR intracavitary simple
High-dose-rate remote afterloading interstitial or intracavitary brachytherapy, simple complexity.
In Plain Language
High-dose radiation placed inside tissue or cavity for simple cases
Clinical Context
Simple high-dose-rate interstitial or intracavitary brachytherapy with single or basic applicator configuration.
RVU Breakdown
| Work RVU | 1.90 |
| Total RVU | 1.90 |
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 1.90, this code ranks in the 88th percentile among Radiology codes — 2.3x the median (0.81). The highest wRVU in this category is 11.57.
Specialties
Frequently Asked Questions
What is CPT code 77770?
CPT 77770 (Hdr rdncl ntrstl/icav brchtx) is a Radiology code. High-dose-rate remote afterloading interstitial or intracavitary brachytherapy, simple complexity.
Who uses CPT code 77770?
CPT 77770 is used by Radiation Oncology. Simple high-dose-rate interstitial or intracavitary brachytherapy with single or basic applicator configuration.
When is CPT 77770 used?
Simple high-dose-rate interstitial or intracavitary brachytherapy with single or basic applicator configuration.
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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.