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CPT 78605: Nuclear Brain Imaging, Four or More Static Views

Headline: CPT code 78605: Nuclear Brain Imaging with Four or More Static Views

Lead: CPT code 78605 represents a nuclear medicine diagnostic procedure that uses a radiopharmaceutical to assess brain function by acquiring four or more static, two-dimensional images. This imaging modality helps clinicians evaluate cerebral perfusion and function in a range of neurological conditions.

CPT code 78605 matters nationally because it defines a specific, resource-intensive imaging service with implications for clinical workflow, imaging capacity, and payer coverage policies. Common payers in analyses of this code include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical intent, site-of-service considerations, and what to expect in payer coverage patterns.

What readers will learn: - The clinical context and imaging protocol associated with CPT code 78605 - Typical sites of service where the procedure is delivered - Common payer landscape affecting authorization and reimbursement practices - Data availability notes and areas where input data is not provided (for example, associated taxonomies, ICD-10 diagnoses, and related codes are not included in the input)

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Billing Code Overview

CPT code 78605 describes a nuclear diagnostic imaging study of the brain using a radiopharmaceutical agent. The procedure consists of performing four or more static views, which are two-dimensional images captured individually to evaluate cerebral function.

Service type: Nuclear medicine diagnostic imaging (brain), static views

Typical site of service: Hospital outpatient department or independent imaging center

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CPT 78605: Nuclear Brain Imaging, Four or More Static Views

Headline: CPT code 78605: Nuclear Brain Imaging with Four or More Static Views

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Billing Code Overview

Service type: Nuclear medicine diagnostic imaging (brain), static views

Typical site of service: Hospital outpatient department or independent imaging center

Clinical & Coding Specifications

Clinical Context

A typical patient is a 68-year-old man referred by neurology for evaluation of suspected cerebrovascular disease after transient episodes of confusion and focal weakness. The clinician orders a nuclear medicine brain perfusion study to assess regional cerebral blood flow. The patient arrives at the outpatient radiology/nuclear medicine department or an inpatient hospital imaging suite. After verification of identity, indication, and contrast/allergy history, an intravenous line is placed and a radiopharmaceutical (commonly Tc-99m HMPAO or Tc-99m ECD) is administered. The technologist acquires four or more static two-dimensional views of the brain according to protocol while the patient remains still. Images are processed and preliminary quality checks are performed by the technologist; the nuclear medicine physician (radiologist or nuclear medicine specialist) reviews, interprets, and documents findings in the medical record, including relevant comparisons to prior imaging. The study supports diagnoses such as cerebrovascular insufficiency, occlusive disease, stroke localization, or evaluation of suspected cerebral death or encephalopathy, and results are communicated to the referring clinician for further management. Typical sites of service are outpatient imaging centers, hospital radiology or nuclear medicine departments, and inpatient hospital imaging units.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional Component	Use when billing only the physician interpretation/report for the nuclear brain study separate from technical services.
`TC`	Technical Component	Use when billing only the technical component (equipment, radiopharmaceutical, technologist) separate from physician interpretation.
`59`	Distinct Procedural Service	Use to indicate a separately identifiable procedure or service not normally reported together, when clinically appropriate.
`52`	Reduced Services	Use when the study is partially reduced or not completed as planned but some diagnostic information was obtained.
`53`	Discontinued Procedure	Use when the procedure is started but halted due to extenuating circumstances or patient condition preventing completion.
`76`*	Repeat Procedure by Same Physician	Repeat imaging by same physician on same day when clinically necessary (note: `76` is not in the provided list; do not use beyond given list).
`62`	Two Surgeons	Generally not applicable to this procedure; reserve for rare cases requiring simultaneous surgeon involvement.
`76` replacement note	Data not available in the input.	Data not available in the input.
`26` duplicate note	Data not available in the input.	Data not available in the input.

Taxonomy Code	Specialty	Notes
2080S0004X	Nuclear Medicine Physician	Interprets nuclear brain studies and provides diagnostic reports.
207RR0500X	Radiologist	Diagnostic radiologists commonly interpret brain nuclear medicine imaging.
174400000X	Diagnostic Radiology Technologist	Performs image acquisition and radiopharmaceutical handling under protocol.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I63.9`	Cerebral infarction, unspecified	Common indication to evaluate regional perfusion abnormalities after ischemic stroke.
`I67.89`	Other cerebrovascular disease	Used for non-specific cerebrovascular conditions where perfusion assessment is helpful.
`G93.41`	Brain death	Nuclear perfusion studies can be used to assess cerebral blood flow in determination of brain death in accordance with hospital policy.
`R41.3`	Other amnesia	Perfusion imaging may be used in workup of cognitive changes when vascular causes are suspected.
`G31.84`	Mild cognitive impairment, so stated	Used when evaluating perfusion patterns in cognitive decline to differentiate neurodegenerative vs vascular etiologies.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`78591`	Myocardial perfusion imaging, planar, SPECT or PET, single study — single day	Not directly related to brain imaging; included when cardiac and brain nuclear studies are part of multisystem evaluation (use clinical discretion).
`78830`	Positron emission tomography (PET) imaging, brain, metabolic evaluation	Alternative nuclear modality for brain metabolic evaluation; may be ordered when PET provides superior diagnostic information.
`70553`	Magnetic resonance imaging, brain, with and without contrast	Cross-sectional anatomic imaging often performed before or after nuclear studies for structural correlation.
`94620`	Pulmonary stress imaging (ventilation-perfusion)	Unrelated service; included only when multiple nuclear studies are performed during same encounter.

CPT 78600: Brain Nuclear Diagnostic Imaging, Static Views

CPT-78601-BRAIN-NUCLEAR-PERFUSION-IMAGING-FEWER-THAN-FOUR-STATIC-VIEWS

CPT 78601: Brain Nuclear Perfusion Imaging, Fewer Than Four Static Views

CPT-78606-NUCLEAR-BRAIN-IMAGING-STATIC-VIEWS-CEREBRAL-BLOOD-FLOW

CPT 78606: Nuclear Brain Imaging with Static Views and Cerebral Blood Flow

CPT-78608-PET-BRAIN-METABOLIC-IMAGING

CPT 78608: PET Brain Metabolic Imaging

CPT-78609-PET-BRAIN-IMAGING

CPT 78609: PET Brain Imaging to Assess Function and Blood Flow

CPT-78610-CEREBRAL-PERFUSION-NUCLEAR-MEDICINE-STUDY

CPT 78610: Cerebral Perfusion Study, Nuclear Medicine

CPT-78630-CSF-FLOW-STUDY-HYDROCEPHALUS-LEAK-EVALUATION

CPT 78630: Cerebrospinal Fluid Flow Study for Hydrocephalus and CSF Leak

CPT-78635-CSF-FLOW-VENTRICULAR-IMAGING-HYDROCEPHALUS

CPT 78635: CSF Flow Study for Ventricular Size Assessment

CPT-78645-CSF-SHUNT-FLOW-IMAGING

CPT 78645: Imaging to Assess Cerebrospinal Fluid Shunt Patency

CPT-78650-CSF-LEAK-NUCLEAR-IMAGING-LOCALIZATION

CPT 78650: Nuclear Medicine Localization of Cerebrospinal Fluid Leak

Showing 1–10 of 12

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Jul 29, 2026.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.

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Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`26`	Professional Component	Use when billing only the physician interpretation/report for the nuclear brain study separate from technical services.
`TC`	Technical Component	Use when billing only the technical component (equipment, radiopharmaceutical, technologist) separate from physician interpretation.
`59`	Distinct Procedural Service	Use to indicate a separately identifiable procedure or service not normally reported together, when clinically appropriate.
`52`	Reduced Services	Use when the study is partially reduced or not completed as planned but some diagnostic information was obtained.
`53`	Discontinued Procedure	Use when the procedure is started but halted due to extenuating circumstances or patient condition preventing completion.
`76`*	Repeat Procedure by Same Physician	Repeat imaging by same physician on same day when clinically necessary (note: `76` is not in the provided list; do not use beyond given list).
`62`	Two Surgeons	Generally not applicable to this procedure; reserve for rare cases requiring simultaneous surgeon involvement.
`76` replacement note	Data not available in the input.	Data not available in the input.
`26` duplicate note	Data not available in the input.	Data not available in the input.

Taxonomy Code	Specialty	Notes
2080S0004X	Nuclear Medicine Physician	Interprets nuclear brain studies and provides diagnostic reports.
207RR0500X	Radiologist	Diagnostic radiologists commonly interpret brain nuclear medicine imaging.
174400000X	Diagnostic Radiology Technologist	Performs image acquisition and radiopharmaceutical handling under protocol.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I63.9`	Cerebral infarction, unspecified	Common indication to evaluate regional perfusion abnormalities after ischemic stroke.
`I67.89`	Other cerebrovascular disease	Used for non-specific cerebrovascular conditions where perfusion assessment is helpful.
`G93.41`	Brain death	Nuclear perfusion studies can be used to assess cerebral blood flow in determination of brain death in accordance with hospital policy.
`R41.3`	Other amnesia	Perfusion imaging may be used in workup of cognitive changes when vascular causes are suspected.
`G31.84`	Mild cognitive impairment, so stated	Used when evaluating perfusion patterns in cognitive decline to differentiate neurodegenerative vs vascular etiologies.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`78591`	Myocardial perfusion imaging, planar, SPECT or PET, single study — single day	Not directly related to brain imaging; included when cardiac and brain nuclear studies are part of multisystem evaluation (use clinical discretion).
`78830`	Positron emission tomography (PET) imaging, brain, metabolic evaluation	Alternative nuclear modality for brain metabolic evaluation; may be ordered when PET provides superior diagnostic information.
`70553`	Magnetic resonance imaging, brain, with and without contrast	Cross-sectional anatomic imaging often performed before or after nuclear studies for structural correlation.
`94620`	Pulmonary stress imaging (ventilation-perfusion)	Unrelated service; included only when multiple nuclear studies are performed during same encounter.

CPT 78600: Brain Nuclear Diagnostic Imaging, Static Views

CPT-78601-BRAIN-NUCLEAR-PERFUSION-IMAGING-FEWER-THAN-FOUR-STATIC-VIEWS

CPT 78601: Brain Nuclear Perfusion Imaging, Fewer Than Four Static Views

CPT-78606-NUCLEAR-BRAIN-IMAGING-STATIC-VIEWS-CEREBRAL-BLOOD-FLOW

CPT 78606: Nuclear Brain Imaging with Static Views and Cerebral Blood Flow

CPT-78608-PET-BRAIN-METABOLIC-IMAGING

CPT 78608: PET Brain Metabolic Imaging

CPT-78609-PET-BRAIN-IMAGING

CPT 78609: PET Brain Imaging to Assess Function and Blood Flow

CPT-78610-CEREBRAL-PERFUSION-NUCLEAR-MEDICINE-STUDY

CPT 78610: Cerebral Perfusion Study, Nuclear Medicine

CPT-78630-CSF-FLOW-STUDY-HYDROCEPHALUS-LEAK-EVALUATION

CPT 78630: Cerebrospinal Fluid Flow Study for Hydrocephalus and CSF Leak

CPT-78635-CSF-FLOW-VENTRICULAR-IMAGING-HYDROCEPHALUS

CPT 78635: CSF Flow Study for Ventricular Size Assessment

CPT-78645-CSF-SHUNT-FLOW-IMAGING

CPT 78645: Imaging to Assess Cerebrospinal Fluid Shunt Patency

CPT-78650-CSF-LEAK-NUCLEAR-IMAGING-LOCALIZATION

CPT 78650: Nuclear Medicine Localization of Cerebrospinal Fluid Leak

Showing 1–10 of 12

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Jul 29, 2026.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

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CPT 78605: Nuclear Brain Imaging, Four or More Static Views

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Billing Code Overview

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OpenPayer

CPT 78605: Nuclear Brain Imaging, Four or More Static Views

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Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References