Summary & Overview
CPT 78103: Nuclear Medicine Bone Scan, Whole Body/Multi-Phase
CPT code 78103 represents a diagnostic nuclear medicine bone scan performed after intravenous administration of a radiopharmaceutical that images multiple skeletal sites and may include multiple imaging phases. Bone scintigraphy is widely used nationally to detect metastatic disease, osteomyelitis, occult fractures, and other diffuse or focal skeletal abnormalities. The code matters because it captures a commonly ordered functional imaging study that influences oncology staging, infection workups, and trauma evaluation, and it drives reimbursement and utilization tracking across both commercial and public payers.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a national overview of clinical context, payer coverage considerations, common billing modifiers, and the typical sites where the service is provided. The publication outlines benchmarks for utilization and payment where available, discusses policy and coding guidance relevant to nuclear medicine bone scintigraphy, and clarifies claims documentation and service descriptions to support accurate coding and billing. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 78103 describes a nuclear medicine bone scan in which a radiopharmaceutical (radiotracer) is administered intravenously and imaging is performed as the tracer distributes and collects in bone tissue. This is a noninvasive, multi-site imaging study that may be performed in multiple phases to evaluate skeletal pathology, such as metastatic disease, infection, or occult fracture.
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Service type: Nuclear medicine diagnostic imaging (bone scintigraphy)
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Typical site of service: Outpatient imaging center or hospital radiology/nuclear medicine department
Clinical & Coding Specifications
Clinical Context
A 68-year-old male with progressive, diffuse bone pain and a history of metastatic prostate cancer is referred for a diagnostic whole-body bone scintigraphy. The nuclear medicine technologist establishes IV access, administers the technetium-99m-labeled radiopharmaceutical, and documents injection time and activity. The patient waits 2–4 hours for optimal skeletal uptake while hydration and voiding are encouraged. Multiple-phase imaging is performed: immediate flow images (if indicated for suspected osteomyelitis or fracture), blood-pool images, and delayed whole-body planar images with spot views of symptomatic regions. A nuclear medicine physician reviews the images, compares prior imaging (radiographs, CT, MRI), and issues a signed report describing radiotracer distribution, focal increased uptake suggestive of metastatic disease, fracture, infection, or degenerative change. Results are communicated to the referring oncologist or orthopedic surgeon for next-step management such as targeted radiography, MRI, biopsy, or oncologic treatment planning.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the physician interpretation/report for the study separate from technical component. |
TC |