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.

LOINC

LOINC Code 27940-6: Insulin 1.5 Hr post 75 g glucose PO Qn

Name: LOINC Code 27940-6: Insulin 1.5 Hr post 75 g glucose PO Qn
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:14.572Z

27940-6 is a LOINC code used to identify Insulin 1.5 Hr post 75 g glucose PO Qn 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 Insulin^1.5H post 75 g glucose PO. 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 Insulin^1.5H post 75 g glucose PO. 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: DEPRECATED

What it does not mean

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

Key facts

Deprecated Insulin [Units/volume] in Serum or Plasma --1.5 hours post 75 g glucose PO
Insulin^1.5H post 75 g glucose PO
1 1/2 hours; 1 1/2 HR; 1.5h p 75 g Glc PO; 1.5Hr; 75Gm; 90 min; 90 minutes; 90M; 90min; After; Arbitrary concentration; CHEMISTRY.CHALLENGE TESTING; Glu; Glu tol; Gluc; Glucose tolerance; Glucoseur; GTT; HUM; Humulin; IH7; Insul; Lente; NPH; p 75 g Glc PO; Pl; Plasma; Plsm; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; Semilente; SerP; SerPl; SerPlas; Serum; Serum or plasma; Sliding; SR; Ultralente

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

Insulin 1.5 Hr post 75 g glucose PO QnDeprecated Insulin [Units/volume] in Serum or Plasma --1.5 hours post 75 g glucose PODeprecated Insulin 1.5H p 75 g Glc PO SeInsulin^1.5H post 75 g glucose POCHALInsulin 1.5 hr after 75 g glucose by mouth, BloodACnc

Frequently asked questions

Code details

Code27940-6

SystemLOINC

Display nameInsulin 1.5 Hr post 75 g glucose PO Qn

DescriptionInsulin^1.5H post 75 g glucose PO

Short nameDeprecated Insulin 1.5H p 75 g Glc PO Se

ComponentInsulin^1.5H post 75 g glucose PO

PropertyACnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHAL

Example unitsmU/mL;mcU/mL

StatusDEPRECATED

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.00

Last changed2.40

Consumer names

Insulin 1.5 hr after 75 g glucose by mouth, Blood

Part names

Insulin^1.5H post 75 g glucose POACncPtSer/PlasQnArbitrary 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.