Differential/Total WBC Count (LABCORP)

Test Code
99901000274


Alias/See Also
LAB4088: WBC and Diff | LABCORP EAP: 015173


CPT Codes
85004x1, 85048x1

Preferred Specimen
LABCORP LAB: LAVENDER TOP-EDTA (Refrigerated) Min Vol: 1


Instructions
Adults: 4 mL lavender top tube *Pediatric minimum: 2 lavender top microtainers*


Transport Temperature
Specimen Plasma (preferred) Volume 1.5 mL Minimum Volume 0.7 mL (Note: This volume does not allow for repeat testing.) Container Lavender-top (EDTA) tube (preferable) Collection Transfer separated plasma into a plastic transport tube clearly labeled as ""EDTA Plasma"" and maintain at refrigerated temperature. Storage Instructions Refrigerate (preferable)


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.