Heroin Metabolite (6-AM) Confirmation (LabCorp MedWatch®)

CPT: 80356
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Test Details


Detect and confirm the presence of heroin metabolite (6-acetylmorphine). Note: 6-Acetylmorphine [6-AM] has a short half-life and is further metabolized to morphine. It is most likely to be detected within the first 24 hours following heroin use. Consequently, specimens collected more than 24 hours post dose may test negative for 6-AM.


Mass spectrometry (MS)

Specimen Requirements




20 mL


Plastic urine container

Storage Instructions

Maintain specimen at room temperature. If arrival at lab will extend beyond seven days, refrigerate.

Causes for Rejection

Quantity not sufficient for analysis; incorrect specimen

Clinical Information

Special Instructions

This assay is intended for pain management. It is not intended for workplace testing and does not comply with state regulatory workplace testing programs.


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
737934 6-Acetylmorphine Confirm, Ur 070474 Documentation N/A
737934 6-Acetylmorphine Confirm, Ur 737911 6-Mono-Acetylmorphine Holding N/A
737934 6-Acetylmorphine Confirm, Ur 737935 6-Acetylmorphine 19322-7
737934 6-Acetylmorphine Confirm, Ur 737936 6-Acetylmorphine Confirm ng/mL 19593-3

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