Hemoglobin A1C (LABCORP)

Test Code
99901000814


Alias/See Also
LAB90: Hgb A1C (Glycohemoglobin)
LAB100163: Hemoglobin A1C
LAB100221: Hemoglobin A1C | LABCORP EAP: 102525


CPT Codes
83036x1

Preferred Specimen

FULL TUBE IS REQUIRED IF ORDERED WITH A PRENATAL PANEL
 
Specimen: Whole blood


Minimum Volume
Minimum Volume: 1.0 mL (Note: This volume does not allow for repeat testing.)  Pediatric EDTA whole blood tubes may be used. Please place original labeled capillary tube in a labeled transport tube for shipment to the laboratory.


Other Acceptable Specimens
LABCORP LAB: LAVENDER TOP-EDTA: (Refrigerated) Min Vol: 1


Instructions
Adults: collect 4 mL blood into chilled lavender-top (EDTA) tube. Plasma must be separated within 15 minutes. *Pediatric minimum: 2 chilled lavender microtainers*


Transport Temperature
Specimen Plasma, frozen; plasma with aprotinin (Trasylol®), (Trasylol® acceptable, not required) Volume 1 mL Minimum Volume 0.5 mL (Note: This volume does not allow for repeat testing.) Container Lavender-top (EDTA) tube Collection Collect into chilled or prefrozen plastic lavender-top (EDTA) tube, noting the time of collection. After venipuncture, immediately invert tube several times to ensure complete mixture. Separate plasma from cells by centrifugation. Separate plasma into a plastic vial, and freeze within 15 minutes of collection. To avoid delays in turnaround time when requesting multiple test on frozen sample, please submit separate frozen specimens for each test requested. Storage Instructions Freeze


Specimen Stability
Temperature                                   Period
Room temperature                      3 days (stability determined by manufacturer)
Refrigerated                                 7 days (stability determined by manufacturer)
Frozen                                          6 months (stability determined by manufacturer)
Freeze/thaw cycles                     Stable x1 (stability determined by manufacturer)


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Clotted specimen


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: November 4, 2026


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.