70473 CT cere prfu aly c+wo CT/cta
Also known as: CT perfusion, CTP, perfusion-only CT, brain perfusion imaging
Computed tomographic perfusion analysis of the cerebrum with intravenous contrast without concurrent computed tomographic angiography. Evaluates cerebral hemodynamics including blood flow, blood volume, and transit times.
In Plain Language
blood flow measurement in brain; tissue perfusion study
Clinical Context
Used when perfusion assessment is needed without angiographic detail, such as in selected stroke patients or brain tumor characterization. Provides hemodynamic data without additional radiation from separate angiographic acquisition.
RVU Breakdown
| Work RVU | 1.00 |
| Total RVU | 1.00 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
Radiology codes require a written order, clinical indication, and a formal interpretation report. The professional component (modifier -26) and technical component (modifier -TC) may be billed separately.
How This Code Compares
With a work RVU of 1.00, this code ranks in the 58th percentile among Radiology codes — 1.2x the median (0.81). The highest wRVU in this category is 11.57.
Specialties
Frequently Asked Questions
What is CPT code 70473?
CPT 70473 (CT cere prfu aly c+wo CT/cta) is a Radiology code. Computed tomographic perfusion analysis of the cerebrum with intravenous contrast without concurrent computed tomographic angiography. Evaluates cerebral hemodynamics including blood flow, blood volume, and transit times.
Who uses CPT code 70473?
CPT 70473 is used by Neuroradiology, Neurology, Oncology. Used when perfusion assessment is needed without angiographic detail, such as in selected stroke patients or brain tumor characterization. Provides hemodynamic data without additional radiation from separate angiographic acquisition.
When is CPT 70473 used?
Used when perfusion assessment is needed without angiographic detail, such as in selected stroke patients or brain tumor characterization. Provides hemodynamic data without additional radiation from separate angiographic acquisition.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.