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ToxAssure® Flex 23, Urine

CPT: Call client services.

Test Includes

Definitive testing for benzodiazepines, buprenorphine, dextromethorphan, fentanyl, ketamine, sedative/hypnotics; presumptive testing for acetaminophen and ethyl alcohol (EtOH); presumptive testing with reflex definitive testing for 6-acetylmorphine (heroin metabolite), amphetamines, barbiturates, carisoprodol, cocaine, ethanol biomarkers (ETG), gabapentin, methadone and metabolite, meperidine, opiates, oxycodone, phencyclidine, propoxyphene, tapentadol, tetrahydrocannabinol (THC), and tramadol

Specimen Requirements


Urine (random)


30 mL

Minimum Volume

3 mL


Plastic urine container without preservative


Provide reported medications.

Storage Instructions

Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.

Test Details


Detect the presence of prescribed, over-the-counter, and illicit drugs for the purpose of medical drug monitoring


Immunoassay (IA) and liquid chromatography/tandem mass spectreometry (LC/MS-MS)

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CPT Statement/Profile Statement

The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at Additional information regarding LOINC® codes can be found at, including the LOINC Manual, which can be downloaded at