A9591 Fluoroestradiol f 18
Also known as: F-18 FES, fluoroestradiol
Fluorine F-18 fluoroestradiol injection used as a positron emission tomography tracer for imaging estrogen receptor-positive cancers.
In Plain Language
breast cancer PET tracer; estrogen receptor imaging dye
Clinical Context
Used in PET imaging for assessment of estrogen receptor expression in breast cancer and other hormone-sensitive malignancies.
RVU Information
CPT A9591 does not have a physician work RVU assigned by CMS. This is typical for supply, drug, and equipment codes — reimbursement is based on Average Sales Price (ASP), fee schedules, or payer contracts rather than the RVU system.
Billing & Documentation
HCPCS A-codes cover medical supplies, equipment, and transport services. Documentation must establish medical necessity and include a physician order. For durable medical equipment (DME), a Certificate of Medical Necessity (CMN) or detailed written order may be required.
Specialties
Frequently Asked Questions
What is CPT code A9591?
CPT A9591 (Fluoroestradiol f 18) is a A Codes code. Fluorine F-18 fluoroestradiol injection used as a positron emission tomography tracer for imaging estrogen receptor-positive cancers.
Does Medicare cover A9591?
Medicare coverage for A9591 depends on medical necessity and applicable Local Coverage Determinations (LCDs). Used in PET imaging for assessment of estrogen receptor expression in breast cancer and other hormone-sensitive malignancies. A physician order is typically required.
When is CPT A9591 used?
Used in PET imaging for assessment of estrogen receptor expression in breast cancer and other hormone-sensitive malignancies.
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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.