LOINCObservation

LOINC Code 26433-3: Wasp venom IgG4 RAST class (S)

26433-3 is a LOINC code used to identify Wasp venom IgG4 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 Wasp venom Ab.IgG4.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 Wasp venom Ab.IgG4.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 Wasp venom IgG4 Ab RAST class [Presence] in Serum
  • Wasp venom Ab.IgG4.RAST class
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; IgG4 RAST; 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

Wasp venom IgG4 RAST class (S)Deprecated Wasp venom IgG4 Ab RAST class [Presence] in SerumDeprecated Wasp Venom IgG4 RAST QlWasp venom Ab.IgG4.RAST classALLERGYWasp venom IgG4 RAST classPrThr

Frequently asked questions

Code details

Code26433-3
SystemLOINC
Display nameWasp venom IgG4 RAST class (S)
DescriptionWasp venom Ab.IgG4.RAST class
Short nameDeprecated Wasp Venom IgG4 RAST Ql
ComponentWasp venom Ab.IgG4.RAST class
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
ClassALLERGY
StatusDEPRECATED
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.75

Consumer names

Wasp venom IgG4 RAST class

Part names

Wasp venom Ab.IgG4.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 26433-3 | HealthAssure