LOINCObservation

LOINC Code 25713-9: Flax IgE RAST class (S)

25713-9 is a LOINC code used to identify Flax IgE RAST class (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 Linum usitatissimum Ab.IgE.RAST class. 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 Linum usitatissimum Ab.IgE.RAST class. 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: DEPRECATED
  • Order vs observation: Observation

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Deprecated Flax IgE Ab RAST class in Serum
  • Linum usitatissimum Ab.IgE.RAST class
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; f198; f333; Flax; Flaxseed; IgE RAST; Immune globulin E; Immunoglobulin E; Linseed; Ordinal; Point in time; QL; Qual; Qualitative; Random; Rf333; Screen; 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

Flax IgE RAST class (S)Deprecated Flax IgE Ab RAST class in SerumDeprecated Flax IgE RAST QlLinum usitatissimum Ab.IgE.RAST classALLERGYFlax allergy testACnc

Frequently asked questions

Code details

Code25713-9
SystemLOINC
Display nameFlax IgE RAST class (S)
DescriptionLinum usitatissimum Ab.IgE.RAST class
Short nameDeprecated Flax IgE RAST Ql
ComponentLinum usitatissimum Ab.IgE.RAST class
PropertyACnc
TimingPt
System (specimen)Ser
ScaleOrd
ClassALLERGY
StatusDEPRECATED
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.36

Consumer names

Flax allergy test

Part names

Linum usitatissimum Ab.IgE.RAST classACncPtSerOrdArbitrary 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 25713-9 | HealthAssure