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GAMMA GT

Test Code
GGT


Alias/See Also
GT


CPT Codes
82977

Preferred Specimen
1.0 mL plasma collected in a PST (LiHeparin tube)


Minimum Volume
0.5 mL


Other Acceptable Specimens
Plasma – EDTA (Lavender)
Tiger top (SST)
Gold top (SST)
​Red top


Specimen Stability
Room Temperature: 7 days at 15-25°C
Refrigerated: Plasma 7 days at 2-8°C
Frozen: 1 year at -15 - -25°C



Last Updated: October 24, 2024


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.