Summary & Overview

CPT 70450: CT Scan of Head or Brain Without Contrast

CPT code 70450 is a widely used billing code for computed tomography (CT) scans of the head or brain performed without contrast material. This diagnostic imaging procedure is essential in evaluating patients with neurological symptoms, head trauma, or suspected brain disorders. The code is recognized nationally and is a cornerstone in radiology services, particularly in outpatient hospital settings where rapid assessment is critical.

Major payers covering this procedure include Aetna, Blue Cross Blue Shield, Cigna Health, Medicare, and UnitedHealthcare. The publication provides a comprehensive overview of payer coverage, reimbursement benchmarks, and policy updates relevant to this code. Readers will gain insights into clinical indications, typical sites of service, and the role of this procedure in diagnostic radiology. The summary also highlights related codes and modifiers commonly used in billing, offering a clear understanding of how 70450 fits within broader radiology coding practices.

This article is designed for healthcare professionals, administrators, and policy analysts seeking up-to-date information on national trends, payer policies, and clinical context for CT head scans without contrast. It serves as a resource for understanding the significance of 70450 in medical billing and its impact on patient care and healthcare operations.

AetnaBlue Cross Blue ShieldCigna HealthMedicareUnitedHealthcareCPT 70450RadiologyDiagnostic ImagingComputed TomographyHead CTOutpatient HospitalMedical BillingClinical BenchmarkPolicy UpdateNeuroradiology

CPT Code Overview

CPT code 70450 represents a computed tomography (CT) scan of the head or brain performed without contrast material. This procedure is classified under radiology and is commonly utilized to evaluate neurological conditions, trauma, or other abnormalities in the brain. The typical site of service for this procedure is an outpatient hospital setting (Place of Service 22), where advanced imaging technology is available for prompt and accurate diagnosis.

Clinical & Coding Specifications

Clinical Context

A patient presents to the outpatient hospital with symptoms such as acute headache, confusion, or loss of consciousness following a minor head injury. The clinician suspects a neurological issue, such as a traumatic subdural hemorrhage or cerebral infarction, and orders a computed tomography (CT) scan of the head or brain without contrast. The radiology department performs the procedure, and the images are interpreted by a diagnostic radiologist or neuroradiologist. The results assist in diagnosing conditions like intracranial bleeding, stroke, or other brain disorders.

Coding Specifications

Modifiers:
- Modifier 26: Used when billing for the professional component (interpretation and report) of the CT scan.
- Modifier TC: Used when billing for the technical component (equipment, supplies, and technician) of the CT scan.
Provider Taxonomies:

Taxonomy Code	Specialty Name
`2085R0202X`

National Reimbursement Benchmarks

Nationally, the mean rate for CPT code 70450 is highest among commercial payers, with Blue Cross Blue Shield, Cigna, and UnitedHealth Group all averaging above $126.00. The BUCA average (commercial composite) stands at $117.24, while Medicare's mean rate is significantly lower at $73.82. This highlights a substantial gap between commercial and government reimbursement levels for this service.

Rate dispersion, measured by the difference between the 75th and 25th percentiles, varies across payers. Cigna exhibits the widest spread at $84.17, indicating greater variability in contracted rates. In contrast, Aetna has the tightest range at $44.79, suggesting more consistent reimbursement levels. The table and chart below present the full breakdown of national benchmarks for each payer.

National Mean Rates by Payer for CPT 70450

Related CPT Codes

70460: CT, head or brain; with contrast material(s)
- Used when a CT scan of the head or brain is performed with contrast. This may be ordered if initial non-contrast imaging is inconclusive or if specific pathology requires contrast enhancement.
70470: CT, head or brain; without contrast material, followed by contrast material(s) and further sections
- Used when both non-contrast and contrast-enhanced CT scans are performed in the same session, often for comprehensive evaluation.
70551: MRI, brain (including brain stem); without contrast material
- MRI is an alternative imaging modality for brain evaluation, often used when CT findings are unclear or when more detailed imaging is needed.
70553: MRI, brain (including brain stem); without contrast material, followed by contrast material(s) and further sequences
- Used for MRI studies that include both non-contrast and contrast-enhanced sequences, providing a thorough assessment of brain pathology.
These codes are related to 70450 as alternatives or adjuncts in the diagnostic workflow for neurological conditions. 70460 and 70470 are commonly used together with 70450 when contrast imaging is required. 70551 and 70553 are MRI alternatives for further evaluation.

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Summary & Overview

CPT 70450: CT Scan of Head or Brain Without Contrast

CPT Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

National Reimbursement Benchmarks

Related Codes

Related Diagnoses

Related CPT Codes

National Reimbursement Benchmarks

Related Codes