LOINCObservation

LOINC Code 15690-1: Whole Egg IgE RAST class (S)

15690-1 is a LOINC code used to identify Whole Egg 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 Egg whole 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 Egg whole 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: Observation

What it does not mean

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

Key facts

  • Deprecated Whole Egg IgE Ab RAST class [Presence] in Serum
  • Egg whole Ab.IgE.RAST class
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; f245; IgE RAST; Immune globulin E; Immunoglobulin E; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serum; SR; Whole Egg; Yolk+White

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

Whole Egg IgE RAST class (S)Deprecated Whole Egg IgE Ab RAST class [Presence] in SerumDeprecated Whole Egg IgE RAST QlEgg whole Ab.IgE.RAST classALLERGYWhole egg allergy testPrThr

Frequently asked questions

Code details

Code15690-1
SystemLOINC
Display nameWhole Egg IgE RAST class (S)
DescriptionEgg whole Ab.IgE.RAST class
Short nameDeprecated Whole Egg IgE RAST Ql
ComponentEgg whole Ab.IgE.RAST class
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
ClassALLERGY
StatusDEPRECATED
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.75

Consumer names

Whole egg allergy test

Part names

Egg whole Ab.IgE.RAST classPrThrPtSerOrdPresence 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.

LOINC Code 15690-1 | HealthAssure