LOINCActiveObservation

LOINC Code 82033-2: Grey alder+Hazelnut+White elm+Willow+Cottonwood IgE RAST class Multidisk (S) [Presence]

82033-2 is a LOINC code used to identify Grey alder+Hazelnut+White elm+Willow+Cottonwood IgE RAST class Multidisk (S) [Presence] 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 (Alnus incana+Corylus avellana+Ulmus americana+Salix caprea+Populus deltoides) 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 (Alnus incana+Corylus avellana+Ulmus americana+Salix caprea+Populus deltoides) 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: ACTIVE
  • Order vs observation: Observation
  • Method: Multidisk

What it does not mean

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

Key facts

  • Tree Allergen Mix 5 (Grey alder+Hazelnut+White elm+Willow+Cottonwood) IgE Ab RAST class [Presence] in Serum by Multidisk
  • (Alnus incana+Corylus avellana+Ulmus americana+Salix caprea+Populus deltoides) Ab.IgE.RAST class
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Allerscan; American elm; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Barcelona nut; Cob nut; Cottonwood; Elm; European alder; f017; f17; Filbert; Gray alder; Grey alder; Hazel nut; Hazelnut; IgE RAST; Immune globulin E; Immunoglobulin E; Point in time; Populus deltoides Ab.IgE.RAST class; PR; Random; Serum; SmQn; Speckled alder; SR; t008; t014; t12; t14; t2; t8; TP5; TP5M; Tree Allerg Mix5; Tree mix (early flowering); tx5; White elm; Willow

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

Grey alder+Hazelnut+White elm+Willow+Cottonwood IgE RAST class Multidisk (S) [Presence]Tree Allergen Mix 5 (Grey alder+Hazelnut+White elm+Willow+Cottonwood) IgE Ab RAST class [Presence] in Serum by MultidiskTree Allerg Mix5 IgE RAST(Alnus incana+Corylus avellana+Ulmus americana+Salix caprea+Populus deltoides) Ab.IgE.RAST classALLERGYTree mix (Grey Alder, Hazelnut, White Elm, Willow, Cottonwood) allergy testPrThr

Frequently asked questions

Code details

Code82033-2
SystemLOINC
Display nameGrey alder+Hazelnut+White elm+Willow+Cottonwood IgE RAST class Multidisk (S) [Presence]
Description(Alnus incana+Corylus avellana+Ulmus americana+Salix caprea+Populus deltoides) Ab.IgE.RAST class
Short nameTree Allerg Mix5 IgE RAST
Component(Alnus incana+Corylus avellana+Ulmus americana+Salix caprea+Populus deltoides) Ab.IgE.RAST class
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleSemiQn
MethodMultidisk
ClassALLERGY
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.56
Last changed2.75

Consumer names

Tree mix (Grey Alder, Hazelnut, White Elm, Willow, Cottonwood) allergy test

Part names

(Alnus incana+Corylus avellana+Ulmus americana+Salix caprea+Populus deltoides) Ab.IgE.RAST classPrThrPtSerSemiQnMultidiskPresence 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.