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Tryptophan (GREENWOOD GENETICS)

Test Code
1230400561


Alias/See Also
LAB7707: Tryptophan | TRYPTOPHAN


CPT Codes
82131x1

Preferred Specimen
GREENWOOD GENETICS LAB: GREEN TOP- NAHEP (Frozen) Min Vol: 1


Instructions
Adult: 5-10 mL EDTA (Lavender or Pink ) tube *Pediatric minimum: 3 mL EDTA (Lavender or Pink ) tube*


Transport Temperature
Specimen Requirement: 5-10 mL blood in lavender top tube. Minimum: 3 mL. Ship at Room Temperature.



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.