LOINCActiveBoth

LOINC Code 40789-0: Japanese hop IgE Qn (S)

40789-0 is a LOINC code used to identify Japanese hop 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 Humulus japonicus 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 Humulus japonicus 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

  • Japanese hop IgE Ab [Units/volume] in Serum
  • Humulus japonicus Ab.IgE
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; H japonicus; H scandens; Immune globulin E; Immunoglobulin E; Japanese hop; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; w22

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

Japanese hop IgE Qn (S)Japanese hop IgE Ab [Units/volume] in SerumJapanese hop IgE QnHumulus japonicus Ab.IgEALLERGYJapanese hop allergy testACnc

Frequently asked questions

Code details

Code40789-0
SystemLOINC
Display nameJapanese hop IgE Qn (S)
DescriptionHumulus japonicus Ab.IgE
Short nameJapanese hop IgE Qn
ComponentHumulus japonicus 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 released2.15
Last changed2.42

Consumer names

Japanese hop allergy test

Part names

Humulus japonicus Ab.IgEACncPtSerQnJapanese hop (Humulus japonicus) 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 40789-0 | HealthAssure