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.

LOINCActiveObservation

LOINC Code 104105-2: Ethyl glucuronide Ql

Name: LOINC Code 104105-2: Ethyl glucuronide Ql
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:18.502Z

104105-2 is a LOINC code used to identify Ethyl glucuronide Ql 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 Ethyl glucuronide. It is commonly used with the system or sample type Ser/Plas.

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 Ethyl glucuronide. It is commonly used with the system or sample type Ser/Plas.

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

What it does not mean

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

Key facts

Ethyl glucuronide [Presence] in Serum or Plasma
Ethyl glucuronide
DRUG/TOXICOLOGY; Drugs; EtG; Ethanol metabolite; Gluc; Glucouronide; Ordinal; Pl; Plasma; Plsm; Point in time; PR; QL; Qual; Qualitative; Random; Screen; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

Ethyl glucuronide QlEthyl glucuronide [Presence] in Serum or PlasmaEthyl glucuronide SerPl QlEthyl glucuronideDRUG/TOXEthyl glucuronide, BloodPrThr

Frequently asked questions

Code details

Code104105-2

SystemLOINC

Display nameEthyl glucuronide Ql

DescriptionEthyl glucuronide

Short nameEthyl glucuronide SerPl Ql

ComponentEthyl glucuronide

PropertyPrThr

TimingPt

System (specimen)Ser/Plas

ScaleOrd

ClassDRUG/TOX

Example unitspos/neg

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.77

Last changed2.77

Consumer names

Ethyl glucuronide, Blood

Part names

Ethyl glucuronidePrThrPtSer/PlasOrdPresence or ThresholdPoint in time (spot)Serum or Plasma

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.