LOINCActiveObservation

LOINC Code 112128-4: European house dust mite IgE IA Qn

112128-4 is a LOINC code used to identify European house dust mite IgE IA Qn 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 Dermatophagoides pteronyssinus Ab.IgE. It is commonly used with the system or sample type Ser/Plas.

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 Dermatophagoides pteronyssinus Ab.IgE. It is commonly used with the system or sample type Ser/Plas.

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: IA

What it does not mean

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

Key facts

  • European house dust mite IgE Ab [Units/volume] in Serum or Plasma by Immunoassay
  • Dermatophagoides pteronyssinus Ab.IgE
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; D pteronyss; D pteronyssinus; d001; d1; EIA; ELFA; ELISA; Enzyme immunoassay; European house dust mite; HDM; House dust mite; IAA; Immune globulin E; Immunoglobulin E; MEIA; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; SUDS

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

European house dust mite IgE IA QnEuropean house dust mite IgE Ab [Units/volume] in Serum or Plasma by ImmunoassayD pteronyss IgE Qn IADermatophagoides pteronyssinus Ab.IgEALLERGYEuropean house dust mite allergy test, BloodACnc

Frequently asked questions

Code details

Code112128-4
SystemLOINC
Display nameEuropean house dust mite IgE IA Qn
DescriptionDermatophagoides pteronyssinus Ab.IgE
Short nameD pteronyss IgE Qn IA
ComponentDermatophagoides pteronyssinus Ab.IgE
PropertyACnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
MethodIA
ClassALLERGY
Example unitskUA/L
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

European house dust mite allergy test, Blood

Part names

Dermatophagoides pteronyssinus Ab.IgEACncPtSer/PlasQnIADermatophagoides pteronyssinus IgEArbitrary ConcentrationPoint in time (spot)Serum or PlasmaImmunoassay

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.