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Test Code PDSU Drug Screen, Prescription/OTC, Urine

Additional Codes


Powerchart: Drug Screen Urine

Epic: LAB2899 Urine Drug Screen W/Thin Layer Chromatography

Reporting Name

Drug Screen, Prescription/OTC, U

Useful For

The qualitative detection and identification of prescription or over-the-counter drugs frequently found in drug overdose or used with a suicidal intent


This test is designed to provide, when possible, the identification of all drugs present.

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type


Specimen Required

Supplies: Plastic, 60-mL urine bottle (T313)

Container/Tube: Plastic, 60-mL urine bottle

Specimen Volume: 30 mL

Collection Instructions:

1. Collect a random urine specimen.

2. No preservative.

Additional Information:

1. See Prescription and Over-the-Counter (OTC) Drug Screens in Special Instructions.

2. For chain-of-custody testing, order PDSUX /  Drug Screen, Prescription/OTC, Chain of Custody, Urine. For situations where chain of custody is required, a Chain-of-Custody Kit (T282) is available.

3. Not intended for use in employment-related testing.

4. Submitting less than 30 mL will compromise our ability to perform all necessary testing.

Specimen Minimum Volume

1.1 mL

Specimen Stability Information

Specimen Type Temperature Time
Urine Refrigerated (preferred) 14 days
  Frozen  14 days
  Ambient  3 hours

Reference Values

Drugs detected are presumptive. Additional testing may be required to confirm the presence of any drugs detected.

Day(s) and Time(s) Performed

Monday through Sunday; Varies

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
PDSU Drug Screen, Prescription/OTC, U In Process


Result ID Test Result Name Result LOINC Value
31260 Drugs detected: 12286-1
45529 Suspect Drug No LOINC Needed
31262 Chain of Custody No LOINC Needed

Reject Due To









Method Name

Gas Chromatography-Mass Spectrometry (GC-MS)

Secondary ID