LOINCActiveBoth

LOINC Code 91665-0: Ascorbate oxidase IgE Qn (S)

91665-0 is a LOINC code used to identify Ascorbate oxidase 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 Ascorbate oxidase 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 Ascorbate oxidase 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

  • Ascorbate oxidase IgE Ab [Units/volume] in Serum
  • Ascorbate oxidase Ab.IgE
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Ascorbate oxidase IgE; Ascorbic acid; Autoantibodies; Autoantibody; c702; Immune globulin E; Immunoglobulin E; k226; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; Vit C; Vitamin C

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

Ascorbate oxidase IgE Qn (S)Ascorbate oxidase IgE Ab [Units/volume] in SerumAscorbate oxidase IgE QnAscorbate oxidase Ab.IgEALLERGYAscorbate oxidase allergy testACnc

Frequently asked questions

Code details

Code91665-0
SystemLOINC
Display nameAscorbate oxidase IgE Qn (S)
DescriptionAscorbate oxidase Ab.IgE
Short nameAscorbate oxidase IgE Qn
ComponentAscorbate oxidase Ab.IgE
PropertyACnc
TimingPt
System (specimen)Ser
ScaleQn
ClassALLERGY
Example unitskIU/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.66
Last changed2.66

Consumer names

Ascorbate oxidase allergy test

Part names

Ascorbate oxidase Ab.IgEACncPtSerQnAscorbate oxidase 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 91665-0 | HealthAssure