LOINCActiveBoth

LOINC Code 56289-2: Horseradish IgG4 (S) [Mass/Vol]

56289-2 is a LOINC code used to identify Horseradish IgG4 (S) [Mass/Vol] 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 Armoracia rusticana Ab.IgG4. 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 Armoracia rusticana Ab.IgG4. 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

  • Horseradish IgG4 Ab [Mass/volume] in Serum
  • Armoracia rusticana Ab.IgG4
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Cochlearia armoracia; f375; Horseradish; Level; Mass concentration; 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

Horseradish IgG4 (S) [Mass/Vol]Horseradish IgG4 Ab [Mass/volume] in SerumHorseradish IgG4-mCncArmoracia rusticana Ab.IgG4ALLERGYHorseradish IgG4 antibodyMCnc

Frequently asked questions

Code details

Code56289-2
SystemLOINC
Display nameHorseradish IgG4 (S) [Mass/Vol]
DescriptionArmoracia rusticana Ab.IgG4
Short nameHorseradish IgG4-mCnc
ComponentArmoracia rusticana Ab.IgG4
PropertyMCnc
TimingPt
System (specimen)Ser
ScaleQn
ClassALLERGY
Example unitsug/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.29
Last changed2.73

Consumer names

Horseradish IgG4 antibody

Part names

Armoracia rusticana Ab.IgG4MCncPtSerQnHorseradish (Armoracia rusticana) IgG4Mass 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 56289-2 | HealthAssure