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 69421-6: Hazelnut recombinant (rCor a) 1 IgE Qn (S)

Name: LOINC Code 69421-6: Hazelnut recombinant (rCor a) 1 IgE Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:48.863Z

69421-6 is a LOINC code used to identify Hazelnut recombinant (rCor a) 1 IgE Qn (S) 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 Corylus avellana recombinant (rCor a) 1 Ab.IgE. It is commonly used with the system or sample type Ser.

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 Corylus avellana recombinant (rCor a) 1 Ab.IgE. It is commonly used with the system or sample type Ser.

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

What it does not mean

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

Key facts

Hazelnut recombinant (rCor a) 1 IgE Ab [Units/volume] in Serum
Corylus avellana recombinant (rCor a) 1 Ab.IgE
ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Barcelona nut; Cob nut; f017; f17; f428; Filbert; Hazel nut; Hazelnut; Hazelnut (rCor a) 1; i; Immune globulin E; Immunoglobulin E; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; 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

Hazelnut recombinant (rCor a) 1 IgE Qn (S)Hazelnut recombinant (rCor a) 1 IgE Ab [Units/volume] in SerumHazelnut (rCor a) 1 IgE QnCorylus avellana recombinant (rCor a) 1 Ab.IgEALLERGYHazelnut recombinant (rCor a) 1 allergy testACnc

Frequently asked questions

Code details

Code69421-6

SystemLOINC

Display nameHazelnut recombinant (rCor a) 1 IgE Qn (S)

DescriptionCorylus avellana recombinant (rCor a) 1 Ab.IgE

Short nameHazelnut (rCor a) 1 IgE Qn

ComponentCorylus avellana recombinant (rCor a) 1 Ab.IgE

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

ClassALLERGY

Example unitskIU/L

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.40

Last changed2.73

Consumer names

Hazelnut recombinant (rCor a) 1 allergy test

Part names

Corylus avellana recombinant (rCor a) 1 Ab.IgEACncPtSerQnHazelnut (Corylus avellana) recombinant (rCor a) 1 IgEArbitrary ConcentrationPoint in time (spot)Serum

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.