LOINCBoth

LOINC Code 6849-4: White Oak IgE Qn (S)

6849-4 is a LOINC code used to identify White Oak 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 Quercus alba 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 Quercus alba 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: DEPRECATED
  • Order vs observation: Both

What it does not mean

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

Key facts

  • Deprecated White Oak IgE Ab [Units/volume] in Serum
  • Quercus alba Ab.IgE
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Immune globulin E; Immunoglobulin E; Oak; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; t007; t7; White oak

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

White Oak IgE Qn (S)Deprecated White Oak IgE Ab [Units/volume] in SerumDeprecated White Oak IgE QnQuercus alba Ab.IgEALLERGYWhite oak allergy testACnc

Frequently asked questions

Code details

Code6849-4
SystemLOINC
Display nameWhite Oak IgE Qn (S)
DescriptionQuercus alba Ab.IgE
Short nameDeprecated White Oak IgE Qn
ComponentQuercus alba Ab.IgE
PropertyACnc
TimingPt
System (specimen)Ser
ScaleQn
ClassALLERGY
StatusDEPRECATED
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0h(2)
Last changed2.69

Consumer names

White oak allergy test

Part names

Quercus alba Ab.IgEACncPtSerQnWhite Oak (Quercus alba) 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.

LOINC Code 6849-4 | HealthAssure