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 19528-9: Lysergate diethylamide Screen Ql (U)

Name: LOINC Code 19528-9: Lysergate diethylamide Screen Ql (U)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

19528-9 is a LOINC code used to identify Lysergate diethylamide 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 Lysergate diethylamide. 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 Lysergate diethylamide. 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

Lysergate diethylamide [Presence] in Urine by Screen method
Lysergate diethylamide
Addiction; DRUG/TOXICOLOGY; Drugs; Drugs of abuse; Illicit; LSD; Lysergic acid; Lysergic acid diethylamide; Ordinal; Point in time; PotentialForAbuse; PR; QL; Qual; Qualitative; Random; Scn; Scr; Screen; Scrn; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Lysergate diethylamide Screen Ql (U) (19528-9)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Lysergate diethylamide Screen Ql (U)Lysergate diethylamide [Presence] in Urine by Screen methodLSD Ur Ql ScnLysergate diethylamideDRUG/TOXLysergate diethylamide, UrinePrThr

Frequently asked questions

Code details

Code19528-9

SystemLOINC

Display nameLysergate diethylamide Screen Ql (U)

DescriptionLysergate diethylamide

Short nameLSD Ur Ql Scn

ComponentLysergate diethylamide

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 changed2.73

Consumer names

Lysergate diethylamide, Urine

Part names

Lysergate diethylamidePrThrPtUrineOrdScreenPresence 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.