84449 Assay of transcortin
Also known as: transcortin, cortisol-binding globulin, CBG
Quantitative assay of serum transcortin (cortisol-binding globulin), the carrier protein for corticosteroids.
In Plain Language
hormone carrier protein test
Clinical Context
Measures cortisol-binding capacity; altered by estrogen, pregnancy, and liver disease; affects free cortisol interpretation.
RVU Information
CPT 84449 does not have a physician work RVU assigned by CMS. Reimbursement for this code is determined by payer-specific fee schedules.
Billing & Documentation
Lab and pathology codes require an order from the treating provider with clinical indication. For molecular pathology and genetic testing, document the specific analytes tested and clinical rationale.
How This Code Compares
This code has a work RVU of 0.00, meaning it does not have a physician work component assigned by CMS. In the Pathology & Lab category, 94% of codes share this characteristic.
Specialties
Frequently Asked Questions
What is CPT code 84449?
CPT 84449 (Assay of transcortin) is a Pathology & Lab code. Quantitative assay of serum transcortin (cortisol-binding globulin), the carrier protein for corticosteroids.
Who uses CPT code 84449?
CPT 84449 is used by Clinical Chemistry, Endocrinology, Laboratory Medicine. Measures cortisol-binding capacity; altered by estrogen, pregnancy, and liver disease; affects free cortisol interpretation.
When is CPT 84449 used?
Measures cortisol-binding capacity; altered by estrogen, pregnancy, and liver disease; affects free cortisol interpretation.
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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.