LOINCObservation

LOINC Code 16074-7: Walnut IgE RAST class (S)

16074-7 is a LOINC code used to identify Walnut 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 Juglans spp 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 Juglans spp 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 Walnut IgE Ab RAST class [Presence] in Serum
  • Juglans spp Ab.IgE.RAST class
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; f256; IgE RAST; Immune globulin E; Immunoglobulin E; Juglans sp; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serum; SR; Walnut; Walnuts

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

Walnut IgE RAST class (S)Deprecated Walnut IgE Ab RAST class [Presence] in SerumDeprecated Walnut IgE RAST QlJuglans spp Ab.IgE.RAST classALLERGYWalnut allergy testPrThr

Frequently asked questions

Code details

Code16074-7
SystemLOINC
Display nameWalnut IgE RAST class (S)
DescriptionJuglans spp Ab.IgE.RAST class
Short nameDeprecated Walnut IgE RAST Ql
ComponentJuglans spp Ab.IgE.RAST class
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
ClassALLERGY
StatusDEPRECATED
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.75

Consumer names

Walnut allergy test

Part names

Juglans spp Ab.IgE.RAST classPrThrPtSerOrdPresence or ThresholdPoint 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 16074-7 | HealthAssure