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Cannabidiol (CBD)/Tetrahydrocannabinol (THC) Ratio, Urine

Test Code
14161


CPT Codes
80349<br>Limited Access Code

Preferred Specimen
30 mL random urine collected in a plastic urine container without preservative


Minimum Volume
3 mL


Transport Temperature
Refrigerated (cold packs)


Specimen Stability
Room temperature: 3 days
Refrigerated: 14 days
Frozen: 3 years


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Urine from preservative tube


Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

FDA Status
This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.

Setup Schedule
Set up: Varies; Report available: 4-6 days


Reference Range
See Laboratory Report


Clinical Significance
To assist in distinguishing whether a positive urine THC test is exclusively the result of CBD use.




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.