Summary & Overview
CPT 78808: Intravenous Radiotracer Injection for Gamma-Probe Localization
CPT code 78808 represents an intravenous injection of a gamma-emitting radioactive tracer for intraoperative or preoperative localization of a targeted structure using a handheld gamma probe. This nuclear medicine procedure is used to identify lesions or sentinel nodes that concentrate radiotracer, supporting surgical localization and targeted intervention. Nationally, CPT code 78808 matters for hospitals, imaging centers, and surgical practices that perform sentinel node mapping or other radioguided localization procedures because it captures a specialized diagnostic/ localization service integral to certain oncologic and surgical workflows.
Key payers addressed in standard coverage discussions include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise briefing on the clinical role of the procedure, typical sites of service, common billing considerations, and which payers commonly cover this service. The publication outlines benchmarks and policy-relevant issues that affect coverage and utilization, plus clinical context explaining when radiotracer-guided localization is applied. Data not available in the input will be noted where applicable.
Billing Code Overview
CPT code 78808 describes an intravenous injection of a gamma-emitting radioactive tracer used to localize a structure with a handheld gamma probe. The procedure involves administering the tracer intravenously and then using the probe to detect tracer radioactivity to guide localization.
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Service type: Image-guided localization using radiotracer injection
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Typical site of service: Hospital outpatient department, outpatient imaging center, or specialized nuclear medicine clinic
Clinical & Coding Specifications
Clinical Context
A typical patient is a 55-year-old woman with early-stage breast cancer scheduled for lumpectomy with sentinel lymph node mapping. On the morning of surgery, the nuclear medicine team injects a gamma–emitting radiotracer intravenously, and the surgeon uses a handheld gamma probe intraoperatively to localize sentinel lymph nodes for removal. The clinical workflow begins with preoperative planning and informed consent, radiotracer preparation and administration by nuclear medicine or radiology staff, and timing coordinated so tracer uptake is optimal at the time of surgery. In the operating room, the surgeon uses the gamma probe to identify radioactive hotspots corresponding to sentinel nodes; the nodes are excised and sent to pathology. Post-procedure documentation includes the injected radiotracer, dose, injection site, time of injection, probe findings, nodes removed, and any immediate complications. Typical sites of service are hospital operating rooms and ambulatory surgery centers.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the physician’s interpretation or intraoperative localization service separate from technical services |
50 | Bilateral procedure |