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 1513-1: Glucose 20 Min post 0.5 g/kg glucose IV [Mass/Vol]

Name: LOINC Code 1513-1: Glucose 20 Min post 0.5 g/kg glucose IV [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:25.112Z

1513-1 is a LOINC code used to identify Glucose 20 Min post 0.5 g/kg glucose IV [Mass/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^20M post 0.5 g/kg glucose IV. 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^20M post 0.5 g/kg glucose IV. 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 [Mass/volume] in Serum or Plasma --20 minutes post 0.5 g/kg glucose IV
Glucose^20M post 0.5 g/kg glucose IV
20M p .5 g/kg Glc IV; After; CHEMISTRY.CHALLENGE TESTING; Endocrine; Endocrinology; Glu; Glu tol; Gluc; Glucose tolerance; Glucoseur; GTT; Level; Mass concentration; Pl; Plasma; Plsm; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; 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

Glucose 20 Min post 0.5 g/kg glucose IV [Mass/Vol]Glucose [Mass/volume] in Serum or Plasma --20 minutes post 0.5 g/kg glucose IVGlucose 20M p .5 g/kg Glc IV SerPl-mCncGlucose^20M post 0.5 g/kg glucose IVCHALGlucose 20 min after 0.5 g/kg glucose intravenous, BloodMCnc

Frequently asked questions

Code details

Code1513-1

SystemLOINC

Display nameGlucose 20 Min post 0.5 g/kg glucose IV [Mass/Vol]

DescriptionGlucose^20M post 0.5 g/kg glucose IV

Short nameGlucose 20M p .5 g/kg Glc IV SerPl-mCnc

ComponentGlucose^20M post 0.5 g/kg glucose IV

PropertyMCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHAL

Example unitsmg/dL

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.34

Consumer names

Glucose 20 min after 0.5 g/kg glucose intravenous, Blood

Part names

Glucose^20M post 0.5 g/kg glucose IVMCncPtSer/PlasQnMass 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.