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 48109-3: Glucose 15 Min pre dose glucose [Moles/Vol]

Name: LOINC Code 48109-3: Glucose 15 Min pre dose glucose [Moles/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:32.262Z

48109-3 is a LOINC code used to identify Glucose 15 Min pre dose glucose [Moles/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 Glucose^15M pre dose glucose. 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 Glucose^15M pre dose glucose. 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

Glucose [Moles/volume] in Serum or Plasma --15 minutes pre dose glucose
Glucose^15M pre dose glucose
15M pre glc; Before; CHEMISTRY.CHALLENGE TESTING; Endocrine; Endocrinology; Glu; Glu tol; Gluc; Glucose tolerance; Glucoseur; GTT; Level; Pl; Plasma; Plsm; Point in time; pre Glc; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Substance concentration

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

Glucose 15 Min pre dose glucose [Moles/Vol]Glucose [Moles/volume] in Serum or Plasma --15 minutes pre dose glucoseGlucose 15M pre glc SerPl-sCncGlucose^15M pre dose glucoseCHALGlucose 15 min before dose glucose, BloodSCnc

Frequently asked questions

Code details

Code48109-3

SystemLOINC

Display nameGlucose 15 Min pre dose glucose [Moles/Vol]

DescriptionGlucose^15M pre dose glucose

Short nameGlucose 15M pre glc SerPl-sCnc

ComponentGlucose^15M pre dose glucose

PropertySCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHAL

Example unitsmmol/L

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.21

Last changed2.70

Consumer names

Glucose 15 min before dose glucose, Blood

Part names

Glucose^15M pre dose glucoseSCncPtSer/PlasQnSubstance ConcentrationPoint 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.