LOINCActiveObservation

LOINC Code 78865-3: Naltrexol cutoff Confirm (U) [Mass/Vol]

78865-3 is a LOINC code used to identify Naltrexol cutoff Confirm (U) [Mass/Vol] in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Naltrexol cutoff. It is commonly used with the system or sample type Urine.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Naltrexol cutoff. It is commonly used with the system or sample type Urine.

When is it used?

  • Used in lab systems, EHRs, and clinical data exchange.
  • May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
  • Status: ACTIVE
  • Order vs observation: Observation
  • Method: Confirm

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

Naltrexol cutoff [Mass/volume] in Urine for Confirmatory method
Naltrexol cutoff
Naltrexol has two forms6-beta naltrexol, which is the primary urinary metabolite of naltrexone, and 6-alpha naltrexol. This assay cannot differentiate between the alpha and beta forms.
6 alpha-hydroxynaltrexone; 6 beta-Naltrexol; Cfm; CNFR; CNFRM; Conf; Confirmation; Confirmatory; CtO; DRUG/TOXICOLOGY; Drugs; GCMS; LC/MS/MS; Level; Mass concentration; Naltrexone metabolite; Point in time; QNT; Quan; Quant; Quantitative; Random; UA; UR; Urn

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Naltrexol cutoff Confirm (U) [Mass/Vol]Naltrexol cutoff [Mass/volume] in Urine for Confirmatory methodNaltrexol CtO Ur Cfm-mCncNaltrexol cutoffDRUG/TOXNaltrexol cutoff, UrineMCnc

Frequently asked questions

Code details

Code78865-3
SystemLOINC
Display nameNaltrexol cutoff Confirm (U) [Mass/Vol]
DescriptionNaltrexol cutoff
Short nameNaltrexol CtO Ur Cfm-mCnc
ComponentNaltrexol cutoff
PropertyMCnc
TimingPt
System (specimen)Urine
ScaleQn
MethodConfirm
ClassDRUG/TOX
Example unitsng/mL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.54
Last changed2.54

Consumer names

Naltrexol cutoff, Urine

Part names

Naltrexol cutoffMCncPtUrineQnConfirmMass ConcentrationPoint in time (spot)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.