What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 19502-4: Methotrimeprazine Screen Ql (U)

Name: LOINC Code 19502-4: Methotrimeprazine Screen Ql (U)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

19502-4 is a LOINC code used to identify Methotrimeprazine Screen 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 Methotrimeprazine. It is commonly used with the system or sample type Urine.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Methotrimeprazine. 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: Screen

What it does not mean

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

Key facts

Methotrimeprazine [Presence] in Urine by Screen method
Methotrimeprazine
DRUG/TOXICOLOGY; Drugs; Hirnamin; Lepurin; Lerium; Levamin; Levohalte; Levomazine; Levomeprazine; Levomeproma; Levomepromazin; Levomepromazina; Levomepromazine; Levomezine; Levonormal; Levopromazine; Levoprome; Levotomin; Levozan; Levozin; Methotrimeprazine; Milezin; Minozinan; Neozine; Neuractil; Neurocil; Neurozil; Novo-Meprazine; Nozinan; Ordinal; Point in time; PR; Procrazine; QL; Qual; Qualitative; Random; Ronexine; Scn; Scr; Screen; Scrn; Sinogan; Sofmin; Specia 246; Tisercin; Tisercine; Tisercinetta; Tisercinettes; UA; UR; Urn; Veractil

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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Methotrimeprazine Screen Ql (U) (19502-4)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Methotrimeprazine Screen Ql (U)Methotrimeprazine [Presence] in Urine by Screen methodMethotrimeprazine Ur Ql ScnMethotrimeprazineDRUG/TOXMethotrimeprazine, UrinePrThr

Frequently asked questions

Code details

Code19502-4

SystemLOINC

Display nameMethotrimeprazine Screen Ql (U)

DescriptionMethotrimeprazine

Short nameMethotrimeprazine Ur Ql Scn

ComponentMethotrimeprazine

PropertyPrThr

TimingPt

System (specimen)Urine

ScaleOrd

MethodScreen

ClassDRUG/TOX

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0l

Last changed2.56

Consumer names

Methotrimeprazine, Urine

Part names

MethotrimeprazinePrThrPtUrineOrdScreenPresence or ThresholdPoint in time (spot)Toxicology screen

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.