LOINCActiveBoth

LOINC Code 56340-3: Oregano IgG4 (S) [Mass/Vol]

56340-3 is a LOINC code used to identify Oregano 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 Origanum vulgare 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 Origanum vulgare 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

  • Oregano IgG4 Ab [Mass/volume] in Serum
  • Origanum vulgare Ab.IgG4
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; f283; Level; Mass concentration; Oregano; Oreganum; Point in time; QNT; Quan; Quant; Quantitative; Random; Rf283; 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

Oregano IgG4 (S) [Mass/Vol]Oregano IgG4 Ab [Mass/volume] in SerumOregano IgG4-mCncOriganum vulgare Ab.IgG4ALLERGYOregano IgG4 antibodyMCnc

Frequently asked questions

Code details

Code56340-3
SystemLOINC
Display nameOregano IgG4 (S) [Mass/Vol]
DescriptionOriganum vulgare Ab.IgG4
Short nameOregano IgG4-mCnc
ComponentOriganum vulgare 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

Oregano IgG4 antibody

Part names

Origanum vulgare Ab.IgG4MCncPtSerQnOregano (Origanum vulgare) 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 56340-3 | HealthAssure