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Opiate Confirmation, Meconium

Important Note

This is a reflex test for lab use only.

Additional Codes

Primary ID

Epic Code

Mayo Test ID

OCMEC

 Reflex order only OPATM

 

Reporting Name

Opiate Confirmation, M

Useful For

Detecting maternal prenatal opiate/opioid use up to 5 months before birth

Method Name

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

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Meconium


Ordering Guidance


For chain-of-custody testing, order OPTMX / Opiate Confirmation, Chain of Custody, Meconium.



Specimen Required


Supplies: Stool container, Small (Random), 4 oz (T288)

Container/Tube: Stool container

Specimen Volume: 1 g (approximately 1 teaspoon)

Collection Instructions: Collect entire random meconium specimen.


Specimen Minimum Volume

0.3 g (approximately 1/4 teaspoon)

Specimen Stability Information

Specimen Type Temperature Time
Meconium Frozen (preferred) 28 days
  Refrigerated  28 days
  Ambient  14 days

Reject Due To

Grossly bloody Reject; Pink OK
Stool
Diapers		 Reject

Reference Values

Negative

 

Positives are reported with a quantitative liquid chromatography tandem mass spectrometry (LC-MS/MS) result.

 

Cutoff concentrations for LC-MS/MS testing:

Codeine: 20 ng/g

Hydrocodone: 20 ng/g

Hydromorphone: 20 ng/g

Morphine: 20 ng/g

Oxycodone: 20 ng/g

Oxymorphone: 20 ng/g

Day(s) Performed

Monday through Sunday

CPT Code Information

G0480

80361 (if appropriate for select payers)

80365 (if appropriate for select payers)

Clinical Toxicology CPT Code Client Guidance

LOINC Code Information

Test ID Test Order Name Order LOINC Value
OPATM Opiate Confirmation, M 69026-3

 

Result ID Test Result Name Result LOINC Value
31848 Morphine 69027-1
31850 Oxymorphone 69028-9
31849 Hydromorphone 68541-2
31847 Codeine 68542-0
31852 Oxycodone 68543-8
31851 Hydrocodone 68544-6
31868 Interpretation 8215-6
31869 Chain of Custody 77202-0

Test Classification

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

Report Available

2 to 3 days

Specimen Retention Time

2 weeks

NY State Approved

Yes

Forms

If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.