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CPT 70553: MRI Brain Including Brain Stem, Without and With Contrast
CPT code 70553 represents a diagnostic magnetic resonance imaging (MRI) study of the brain, including the brain stem, performed first without contrast and then repeated with contrast. This two-part MRI study is commonly used to evaluate a range of neurologic conditions—such as unexplained headache, suspected neoplasm, seizure disorders, cerebrovascular disease, and vestibular complaints—because combining non-contrast and contrast-enhanced sequences improves detection and characterization of lesions. Nationally, 70553 is a widely utilized neuroimaging code with implications for utilization management, prior authorization workflows, and payer coverage policies.
Key payers included in this review are Aetna, Blue Cross Blue Shield, Cigna Health, United Healthcare, and Medicare. The analysis addresses coverage considerations and typical site-of-service patterns relevant to outpatient imaging centers and hospital radiology departments.
Readers will learn the clinical context for ordering an MRI brain with and without contrast, how 70553 relates to adjacent brain MRI codes, common imaging indications tied to relevant ICD-10 diagnoses, and the operational factors that affect billing and claims processing. The content also outlines benchmark topics and policy elements that affect reimbursement and utilization oversight at a national level. Data not available in the input will be noted where applicable.
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Billing Code Overview
CPT code 70553 describes a magnetic resonance imaging (MRI) study of the brain including the brain stem performed first without contrast and then with contrast during the same encounter. This sequence captures both non-contrast and contrast-enhanced images to evaluate intracranial structures and pathology.
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Service type: Diagnostic MRI of the brain with and without contrast
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Typical site of service: Outpatient imaging center, hospital radiology department, or ambulatory surgical center
National Reimbursement Benchmarks
Medicare’s mean rate of $219.8 for CPT 70553 sits well below BUCA’s average commercial mean of $843.8, indicating a substantial gap between public and the BUCA commercial benchmark. That gap of $624.0 highlights how much higher commercial reimbursements can be versus Medicare for this service, with Medicare also showing a median local payment of $216 which is close to its mean, suggesting national Medicare locality payments cluster near that level. Rate dispersion (P75 minus P25) varies notably across payers. Blue Cross Blue Shield shows a tight spread of $396.1 (P75 $1,377.20 minus P25 $981.10) relative to its higher central tendency, while Aetna’s spread is $177.3 and Cigna’s is $384.8. UnitedHealth Group’s dispersion is $428.0. BUCA’s interquartile spread is $365.0. The widest IQR among listed payers is UnitedHealth Group at $428.0 and the tightest is Aetna at $177.3, reflecting meaningful differences in within-payer variability.