Summary & Overview
CPT 78832: SPECT/CT Multi-Site Single-Day Nuclear Imaging
CPT code 78832 represents a single-day SPECT study performed with concurrent CT imaging to localize tumors, inflammatory processes, or radioactive tracer distribution across multiple anatomic sites or separate acquisitions. This hybrid nuclear medicine service can include vascular flow and blood pool imaging when performed and is used when imaging at least two areas or conducting distinct acquisitions on the same day. Nationally, the code is significant because it captures combined functional and anatomic imaging that supports diagnostic localization and treatment planning across oncology, infection/inflammation assessment, and certain pulmonary evaluations.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for the code, typical sites of service, and what the code denotes in terms of study scope. The publication provides benchmarks and policy-relevant information where available, clarifies service definitions for billing and coding clarity, and outlines common operational considerations for facilities that perform multi-site SPECT/CT imaging. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 78832 describes a single-day SPECT (single photon emission computed tomography) study with concurrent CT imaging performed to localize a tumor, inflammatory process, or radioactive tracer distribution. The code includes vascular flow and blood pool imaging when performed and applies when imaging covers at least two anatomic areas or separate acquisitions (for example, pelvis and knees or lung ventilation and perfusion) on the same day.
Service type: Nuclear medicine imaging with hybrid SPECT/CT, multi-site or multi-acquisition, single-day
Typical site of service: Outpatient imaging centers, hospital outpatient departments, and freestanding nuclear medicine facilities
Clinical & Coding Specifications
Clinical Context
A 62-year-old patient with a history of prostate cancer presents with rising prostate-specific antigen (PSA) and focal bone pain in the pelvis and left hip. The referring oncologist requests localization of suspected metastatic disease and assessment of tracer uptake to guide therapy. The nuclear medicine department schedules a same-day single-session SPECT with concurrent CT imaging to evaluate multiple sites (pelvis and hips) and to correlate functional radiotracer distribution with anatomic CT localization. The patient arrives after tracer administration; technologists perform vascular flow and blood pool imaging if indicated, then acquire SPECT images of the pelvis and hips with low-dose CT for attenuation correction and anatomic correlation. A nuclear medicine physician reviews and interprets the fused SPECT/CT images, documents radiopharmaceutical administered, sites imaged, findings, and impression, and signs the report. Results are communicated to the referring oncologist for staging and treatment planning.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the interpreting physician's portion of the study separate from technical services. |
TC | Technical component |