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84439 Assay of free thyroxine

Pathology & Lab

Also known as: free T4, FT4, free thyroxine

Quantitative assay of free thyroxine (free T4) concentration, measuring unbound physiologically active hormone.

Clinical Context

Gold standard for thyroid function assessment; more specific than total T4; abnormal in hyper/hypothyroidism.

RVU Breakdown

Work RVU0.00
Practice Expense RVU0.00
Malpractice RVU0.00
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Specialties

Clinical ChemistryEndocrinologyPathology

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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.