TSH+Free T4 (LABCORP)

Test Code
99901000687


Alias/See Also
LAB100219: TSH + Free T4 | LABCORP EAP: 224576


CPT Codes
84439x1, 84443x1

Preferred Specimen
LABCORP LAB: Serum Separator Tube (Refrigerated) Min Vol: .7


Other Acceptable Specimens
LABCORP LAB: YELLOW TOP: (Refrigerated) Min Vol: .7
LABCORP LAB: LIME TOP- LIHEP: (Refrigerated) Min Vol: .7
LABCORP LAB: MICRO YELLOW: (Refrigerated) Min Vol: .7
LABCORP LAB: RED TOP - PLAIN: (Refrigerated) Min Vol: .7


Transport Temperature
Test Includes: Evaluation of protein electrophoretic bands; protein electrophoresis, serum; quantitation of M-spike if present Specimen: Serum Volume: 2 mL Minimum Volume: 1 mL Container: Red-top tube or gel-barrier tube Storage Instructions: Refrigerate at 2°C to 8°C


Report Available
LABCORP LAB
STAT: 5760 min
Routine: 5760 min
Extended TAT: No TAT min
Timed: 5760 min
Life or Death: 5760 min



Last Updated: March 6, 2023


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.