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 100390-4: Sunflower Seed IgG Qn (S)

Name: LOINC Code 100390-4: Sunflower Seed IgG Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:16.532Z

100390-4 is a LOINC code used to identify Sunflower Seed 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 Helianthus annuus seed 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 Helianthus annuus seed 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

Sunflower Seed IgG Ab [Units/volume] in Serum
Helianthus annuus seed Ab.IgG
ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; f183; Immune globulin G; Immunoglobulin G; k84; Point in time; QNT; Quan; Quant; Quantitative; Random; Seeds; Serum; SR; Sunflower; Sunflower pip; Sunflower Seed

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

Sunflower Seed IgG Qn (S)Sunflower Seed IgG Ab [Units/volume] in SerumSunflower Seed IgG QnHelianthus annuus seed Ab.IgGALLERGYSunflower seed IgG antibodyACnc

Frequently asked questions

Code details

Code100390-4

SystemLOINC

Display nameSunflower Seed IgG Qn (S)

DescriptionHelianthus annuus seed Ab.IgG

Short nameSunflower Seed IgG Qn

ComponentHelianthus annuus seed Ab.IgG

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

ClassALLERGY

Example unitskIU/l

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.73

Last changed2.73

Consumer names

Sunflower seed IgG antibody

Part names

Helianthus annuus seed Ab.IgGACncPtSerQnSunflower (Helianthus annuus) Seed 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.