LOINCActiveBoth

LOINC Code 64980-6: American house dust mite recombinant (rDer f) 2 IgE Qn (S)

64980-6 is a LOINC code used to identify American house dust mite recombinant (rDer f) 2 IgE 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 Dermatophagoides farinae recombinant (rDer f) 2 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 Dermatophagoides farinae recombinant (rDer f) 2 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: Both

What it does not mean

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

Key facts

  • American house dust mite recombinant (rDer f) 2 IgE Ab [Units/volume] in Serum
  • Dermatophagoides farinae recombinant (rDer f) 2 Ab.IgE
  • a302; ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Am house dust mite (rDer f) 2; American house dust mite; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; D farinae; d002; d2; d204; Dermatophagoides farianae; HDM; House dust mite; II; Immune globulin E; Immunoglobulin E; Point in time; QNT; Quan; Quant; Quantitative; Random; 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

American house dust mite recombinant (rDer f) 2 IgE Qn (S)American house dust mite recombinant (rDer f) 2 IgE Ab [Units/volume] in SerumAm house dust mite (rDer f) 2 IgE QnDermatophagoides farinae recombinant (rDer f) 2 Ab.IgEALLERGYAmerican house dust mite recombinant (rDer f) 2 allergy testACnc

Frequently asked questions

Code details

Code64980-6
SystemLOINC
Display nameAmerican house dust mite recombinant (rDer f) 2 IgE Qn (S)
DescriptionDermatophagoides farinae recombinant (rDer f) 2 Ab.IgE
Short nameAm house dust mite (rDer f) 2 IgE Qn
ComponentDermatophagoides farinae recombinant (rDer f) 2 Ab.IgE
PropertyACnc
TimingPt
System (specimen)Ser
ScaleQn
ClassALLERGY
Example unitsIU/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.36
Last changed2.70

Consumer names

American house dust mite recombinant (rDer f) 2 allergy test

Part names

Dermatophagoides farinae recombinant (rDer f) 2 Ab.IgEACncPtSerQnAmerican house dust mite (Dermatophagoides farinae) recombinant (rDer f) 2 IgEArbitrary 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.