LOINCActiveBoth

LOINC Code 16742-9: European house dust mite IgG Ql (Bld)

16742-9 is a LOINC code used to identify European house dust mite IgG Ql (Bld) 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.IgG. It is commonly used with the system or sample type Bld.

Reviewed by HealthAssure Clinical TeamUpdated 25 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.IgG. It is commonly used with the system or sample type Bld.

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

  • European house dust mite IgG Ab [Presence] in Blood
  • Dermatophagoides pteronyssinus Ab.IgG
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Blood; D pteronyss; D pteronyssinus; d001; d1; European house dust mite; Gd1; HDM; House dust mite; Immune globulin G; Immunoglobulin G; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; WB; Whole blood

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 IgG Ql (Bld)European house dust mite IgG Ab [Presence] in BloodD pteronyss IgG Bld QlDermatophagoides pteronyssinus Ab.IgGALLERGYEuropean house dust mite IgG antibody, BloodPrThr

Frequently asked questions

Code details

Code16742-9
SystemLOINC
Display nameEuropean house dust mite IgG Ql (Bld)
DescriptionDermatophagoides pteronyssinus Ab.IgG
Short nameD pteronyss IgG Bld Ql
ComponentDermatophagoides pteronyssinus Ab.IgG
PropertyPrThr
TimingPt
System (specimen)Bld
ScaleOrd
ClassALLERGY
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.56

Consumer names

European house dust mite IgG antibody, Blood

Part names

Dermatophagoides pteronyssinus Ab.IgGPrThrPtBldOrdDermatophagoides pteronyssinus IgGPresence or ThresholdPoint in time (spot)Blood

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 16742-9 | HealthAssure