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Specimen Collection Manual and Test Catalog

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CHLORDIAZEPOXIDE AND METABOLITES

Geisinger Epic Procedure Code:  LAB1320    Geisinger Epic ID:  53205

SPECIMEN COLLECTION
Specimen type: 

Serum


Preferred collection container: 
Specimen required: 

2 mL serum collected in a red top tube (no gel); Minimum: 1 mL.


Special notes: 

Serum separator tubes are not acceptable; use polypropylene tubes and ship on cold packs by overnight courier.


Patient preparation: 

Collect at trough concentration, i.e., just before the administration of the next dose.



SPECIMEN PROCESSING
Processing instructions: 

Centrifuge and aliquot.


Transport temperature: 

Refrigerated (cold packs).


Specimen stability: 

Room temperature: Unacceptable. Refrigerated: 5 days. Frozen: 14 days.


Rejection criteria: 

Received room temperature • Serum Separator Tube (SST®)



TEST DETAILS
CPT code(s):  80299 (Unspecified quantitative therapeutic drug) or 80346 (Definitive drug)
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.

Test includes: 

Chlordiazepoxide, Norchlordiazepoxide, Nordiazepam


Methodology: 
Chromatography/Mass Spectrometry
Synonyms: 

Quest test code 91123, Chlordiazepo


Review Date:  12/11/2024

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