T4 FREE
Test CodeLAB127
CPT Codes 84439
Preferred SpecimenGREEN TOP GEL W/LI HEPARIN
Minimum Volume1ml
Transport TemperatureRefrigerated
Reference Range2.00-5.00
Performing Laboratory
ME CHEMISTRY
The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only.
CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.
Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.