LOINCActiveObservation

LOINC Code 102431-4: Marjoram IgE RAST (S) [Presence]

102431-4 is a LOINC code used to identify Marjoram IgE RAST (S) [Presence] 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 Origanum majorana 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 Origanum majorana 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: Observation
  • Method: RAST

What it does not mean

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

Key facts

  • Marjoram IgE Ab [Presence] in Serum by Radioallergosorbent test (RAST)
  • Origanum majorana Ab.IgE
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; f274; Immune globulin E; Immunoglobulin E; Marjoram; Point in time; PR; Radioallergosorbent test; Random; Rf274; Serum; SmQn; 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

Marjoram IgE RAST (S) [Presence]Marjoram IgE Ab [Presence] in Serum by Radioallergosorbent test (RAST)Marjoram IgE RASTOriganum majorana Ab.IgEALLERGYMarjoram allergy testPrThr

Frequently asked questions

Code details

Code102431-4
SystemLOINC
Display nameMarjoram IgE RAST (S) [Presence]
DescriptionOriganum majorana Ab.IgE
Short nameMarjoram IgE RAST
ComponentOriganum majorana Ab.IgE
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleSemiQn
MethodRAST
ClassALLERGY
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.75
Last changed2.75

Consumer names

Marjoram allergy test

Part names

Origanum majorana Ab.IgEPrThrPtSerSemiQnRASTMarjoram (Origanum majorana) IgEPresence or ThresholdPoint in time (spot)SerumRadioallergosorbent test (RAST)

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 102431-4 | HealthAssure