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Test Code DIAZP / 007989-LC DIAZEPAM AND NORDIAZEPAM, SERUM

Additional Codes

Software Test Code
SoftID DIAZP
EPIC LAB10227
LabCorp 007989

Performing Laboratory

Laboratory Corporation of America (LabCorp)

Useful For

Effective management of generalized anxiety disorder and panic disorder in appropriately selected patients.

Method Name

Liquid Chromatography-Tandem Mass Spectrometry (LC-MC/MS)

Reference Values

Therapeutic: diazepam + nordiazepam: 0.2-2.5 ug/mL

Potentially toxic: >5.0 ug/mL

Days and Times Test Performed

Tuesday through Friday

Report Available

1 Day

Specimen Type

Serum

Preferred Container

Red Top Tube – Do not use a gel-barrier tube. The use of gel-barrier tubes is not recommended due to slow absorption of the drug by the gel. Depending on the specimen volume and storage time, the decrease in drug level due to absorption may be clinically significant.

Preferred Volume

Serum: 1 mL (Red Top Tube)

Minimum Volume

Serum: 0.4 mL (Red Top Tube)

Specimen Collection and Handling

Oral: Draw peak sample one hour after dose.

IV: Draw peak sample 15 minutes after dose.

To Process: Spin specimen, separate from clot and send refrigerated.

Rejection Information

Gel-barrier tube is unacceptable.

Add On Capable

Contact Reference Lab – If add-on can never be done, report the test to the Administrative Analyst

Advance Beneficiary Notice Requirements

No ABN Required

CPT Code Information

CPT Code

CPT Description

CPT Disclaimer

80346 Benzodiazepines, 1-12 (Definitive), Quantitative if Indicated
G0480 Drug Test (Definitive), 1-7 Classes Government Payers, if Applicable
G0481 Drug Test (Definitive), 8-14 Classes Government Payers, if Applicable
G0482 Drug Test (Definitive), 15-21 Classes Government Payers, if Applicable
G0483 Drug Test (Definitive), 22+ Classes Government Payers, if Applicable

Keywords

BENZODIAZEPINES

CLORAZEPATE (TRANXENE®)

DIAZEPAM (VALIUM®)

NORDIAZEPAM (TRANXENE®)

TRANXENE® (CLORAZEPATE)

VALIUM® (DIAZEPAM)

Performing Laboratory Location

Laboratory Corporation of America (LabCorp)