Summary & Overview
CPT 78610: Cerebral Perfusion Study, Nuclear Medicine
CPT code 78610 denotes a diagnostic nuclear medicine study of cerebral perfusion using a gamma–emitting radioactive tracer to evaluate blood flow to the brain. This imaging procedure has national relevance for stroke evaluation, cerebrovascular disease assessment, and select neurologic diagnostic pathways where regional cerebral blood flow information informs clinical decisions. Payers commonly covering this service include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will find a concise clinical and billing overview of CPT code 78610, including the clinical context for use, typical sites of service, common modifiers, and payer coverage patterns. The publication summarizes benchmark considerations, payer policy themes, and coding nuances that affect claims submission and adjudication. It also outlines the clinical indications that most often prompt cerebral perfusion imaging and highlights areas where documentation and coding clarity are important for reimbursement and utilization oversight. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 78610 describes a diagnostic nuclear medicine procedure that assesses cerebral perfusion using a gamma–emitting radioactive tracer. The study measures how well blood flows to the brain, typically by injecting a radiotracer and obtaining scintigraphic or SPECT images to evaluate regional cerebral blood flow.
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Service type: Diagnostic nuclear medicine study
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Typical site of service: Hospital outpatient imaging center, radiology or nuclear medicine department, or specialized diagnostic imaging facility
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult referred by a neurologist or primary care physician for evaluation of cerebral perfusion using a gamma-emitting radiotracer. Common indications include evaluation of suspected cerebrovascular insufficiency after transient ischemic attack or stroke, assessment of cerebral blood flow in dementia workup, pre-surgical mapping for carotid endarterectomy or cerebrovascular bypass, or monitoring of cerebral perfusion after head trauma. The patient arrives to a nuclear medicine outpatient imaging suite or hospital radiology department. The technologist confirms patient identity, reviews contraindications and recent imaging, and establishes IV access for radiotracer injection. A radiopharmaceutical (commonly Tc-99m–labeled tracer) is administered and dynamic or static planar and/or single-photon emission computed tomography (SPECT) images of the brain are obtained per protocol. A board-certified nuclear medicine physician or radiologist interprets the images, documents findings, and issues a report. Typical site of service is an outpatient imaging center or hospital nuclear medicine department. Service type is diagnostic nuclear medicine study of cerebral perfusion. Typical modifiers used depend on professional vs technical component billing, multiple procedures, unusual procedural services, or provider circumstances.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the physician interpretation/read of the study. |