LOINCActiveBoth

LOINC Code 105703-3: Isotonitazene Confirm Ql (U)

105703-3 is a LOINC code used to identify Isotonitazene Confirm Ql (U) 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 Isotonitazene. 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 Isotonitazene. 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: Both
  • Method: Confirm

What it does not mean

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

Key facts

  • Isotonitazene [Presence] in Urine by Confirmatory method
  • Isotonitazene
  • This term is to test for Isotonitazene (aka nitazene or "ISO") is a particular synthetic opioid as dangerous and deadly as fentany. Isotonitazene was involved in a substantial minority of synthetic opioid overdose.
  • C23H30N4O3; Cfm; CNFR; CNFRM; Conf; Confirmation; Confirmatory; DRUG/TOXICOLOGY; Drugs; GCMS; LC/MS/MS; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; 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

Isotonitazene Confirm Ql (U)Isotonitazene [Presence] in Urine by Confirmatory methodIsotonitazene Ur Ql CfmIsotonitazeneDRUG/TOXIsotonitazene, UrinePrThr

Frequently asked questions

Code details

Code105703-3
SystemLOINC
Display nameIsotonitazene Confirm Ql (U)
DescriptionIsotonitazene
Short nameIsotonitazene Ur Ql Cfm
ComponentIsotonitazene
PropertyPrThr
TimingPt
System (specimen)Urine
ScaleOrd
MethodConfirm
ClassDRUG/TOX
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.78
Last changed2.78

Consumer names

Isotonitazene, Urine

Part names

IsotonitazenePrThrPtUrineOrdConfirmPresence or ThresholdPoint 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.

LOINC Code 105703-3 | HealthAssure