What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 7580-4: Pecan or Hickory Nut IgG Qn (S)

Name: LOINC Code 7580-4: Pecan or Hickory Nut IgG Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:56.383Z

7580-4 is a LOINC code used to identify Pecan or Hickory Nut 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 Carya illinoinensis nut 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 Carya illinoinensis nut 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

Pecan or Hickory Nut IgG Ab [Units/volume] in Serum
Carya illinoinensis nut Ab.IgG
ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Carya pecan; f201; Hickory; Immune globulin G; Immunoglobulin G; Nuts; Pecan; Pecan/Hick; Pecan/Hick Nut; 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

Pecan or Hickory Nut IgG Qn (S)Pecan or Hickory Nut IgG Ab [Units/volume] in SerumPecan/Hick Nut IgG QnCarya illinoinensis nut Ab.IgGALLERGYPecan or hickory nut IgG antibodyACnc

Frequently asked questions

Code details

Code7580-4

SystemLOINC

Display namePecan or Hickory Nut IgG Qn (S)

DescriptionCarya illinoinensis nut Ab.IgG

Short namePecan/Hick Nut IgG Qn

ComponentCarya illinoinensis nut Ab.IgG

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

ClassALLERGY

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0h(2)

Last changed2.73

Consumer names

Pecan or hickory nut IgG antibody

Part names

Carya illinoinensis nut Ab.IgGACncPtSerQnPecan or Hickory Nut (Carya illinoinensis nut) 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.