LOINCActiveBoth

LOINC Code 24136-4: Black Walnut IgG Qn (S)

24136-4 is a LOINC code used to identify Black Walnut IgG 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 Juglans nigra Ab.IgG. 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 Juglans nigra Ab.IgG. 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

  • Black Walnut IgG Ab [Units/volume] in Serum
  • Juglans nigra Ab.IgG
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; American black walnut; American walnut; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Black walnut; Eastern black walnut; Immune globulin G; Immunoglobulin G; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; t90; Virginia walnut

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

Black Walnut IgG Qn (S)Black Walnut IgG Ab [Units/volume] in SerumBlack Walnut IgG QnJuglans nigra Ab.IgGALLERGYBlack walnut IgG antibodyACnc

Frequently asked questions

Code details

Code24136-4
SystemLOINC
Display nameBlack Walnut IgG Qn (S)
DescriptionJuglans nigra Ab.IgG
Short nameBlack Walnut IgG Qn
ComponentJuglans nigra Ab.IgG
PropertyACnc
TimingPt
System (specimen)Ser
ScaleQn
ClassALLERGY
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0o
Last changed2.73

Consumer names

Black walnut IgG antibody

Part names

Juglans nigra Ab.IgGACncPtSerQnBlack Walnut (Juglans nigra) IgGArbitrary 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 24136-4 | HealthAssure