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.

LOINCBoth

LOINC Code 91123-0: Celery recombinant (rApi g) 1 IgE RAST class (S)

Name: LOINC Code 91123-0: Celery recombinant (rApi g) 1 IgE RAST class (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:20.876Z

91123-0 is a LOINC code used to identify Celery recombinant (rApi g) 1 IgE RAST class (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 Apium graveolens recombinant (rApi g) 1 Ab.IgE.RAST class. 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 Apium graveolens recombinant (rApi g) 1 Ab.IgE.RAST class. 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: DEPRECATED
Order vs observation: Both

What it does not mean

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

Key facts

Deprecated Celery recombinant (rApi g) 1 IgE Ab RAST class [Presence] in Serum
Apium graveolens recombinant (rApi g) 1 Ab.IgE.RAST class
ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Apium graveolens recombinant (rApi g) 1.01; Apium graveolens recombinant (rApi g) 1.0101; Autoantibodies; Autoantibody; Celery; Celery (rApi g) 1; f085; f417; f85; i; IgE RAST; Immune globulin E; Immunoglobulin E; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; 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

Celery recombinant (rApi g) 1 IgE RAST class (S)Deprecated Celery recombinant (rApi g) 1 IgE Ab RAST class [Presence] in SerumDeprecated Celery (rApi g) 1 IgE RAST QlApium graveolens recombinant (rApi g) 1 Ab.IgE.RAST classALLERGYCelery recombinant (rApi g) 1 allergy testPrThr

Frequently asked questions

Code details

Code91123-0

SystemLOINC

Display nameCelery recombinant (rApi g) 1 IgE RAST class (S)

DescriptionApium graveolens recombinant (rApi g) 1 Ab.IgE.RAST class

Short nameDeprecated Celery (rApi g) 1 IgE RAST Ql

ComponentApium graveolens recombinant (rApi g) 1 Ab.IgE.RAST class

PropertyPrThr

TimingPt

System (specimen)Ser

ScaleOrd

ClassALLERGY

StatusDEPRECATED

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.65

Last changed2.75

Consumer names

Celery recombinant (rApi g) 1 allergy test

Part names

Apium graveolens recombinant (rApi g) 1 Ab.IgE.RAST classPrThrPtSerOrdApium graveolens recombinant (rApi g) 1 IgE RAST classPresence or ThresholdPoint 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.