LOINCActiveBoth

LOINC Code 57000-2: Yellow Jacket IgG4 Qn (S)

57000-2 is a LOINC code used to identify Yellow Jacket IgG4 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 Vespula spp Ab.IgG4. 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 Vespula spp Ab.IgG4. 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

  • Yellow Jacket IgG4 Ab [Units/volume] in Serum
  • Vespula spp Ab.IgG4
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Common wasp; i003; i3; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; Vespula sp; Yellow jacket; Yellow wasp

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

Yellow Jacket IgG4 Qn (S)Yellow Jacket IgG4 Ab [Units/volume] in SerumYellow Jacket IgG4 QnVespula spp Ab.IgG4ALLERGYYellow Jacket IgG4 antibodyACnc

Frequently asked questions

Code details

Code57000-2
SystemLOINC
Display nameYellow Jacket IgG4 Qn (S)
DescriptionVespula spp Ab.IgG4
Short nameYellow Jacket IgG4 Qn
ComponentVespula spp Ab.IgG4
PropertyACnc
TimingPt
System (specimen)Ser
ScaleQn
ClassALLERGY
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.29
Last changed2.69

Consumer names

Yellow Jacket IgG4 antibody

Part names

Vespula spp Ab.IgG4ACncPtSerQnYellow Jacket (Vespula spp) IgG4Arbitrary 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.

LOINC Code 57000-2 | HealthAssure