LOINCActiveObservation

LOINC Code 24478-0: Orchard grass+Meadow Fescue+Perennial rye grass+Timothy+Kentucky blue grass IgE RAST class Multidisk (S) [Presence]

24478-0 is a LOINC code used to identify Orchard grass+Meadow Fescue+Perennial rye grass+Timothy+Kentucky blue grass 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 (Dactylis glomerata+Festuca elatior+Lolium perenne+Phleum pratense+Poa pratensis) 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 (Dactylis glomerata+Festuca elatior+Lolium perenne+Phleum pratense+Poa pratensis) 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

  • Grass Allergen Mix 1 (Orchard grass+Meadow Fescue+Perennial rye grass+Timothy+Kentucky blue grass) IgE Ab RAST class [Presence] in Serum by Multidisk
  • (Dactylis glomerata+Festuca elatior+Lolium perenne+Phleum pratense+Poa pratensis) Ab.IgE.RAST class
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Allerscan; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Cocksfoot; Festuca elator; Festuca pratensis; g003; g004; g005; g006; g008; g3; g4; g5; g6; g8; Grass Allerg Mix1; Grass mix (early flowering); gx1; IgE RAST; Immune globulin E; Immunoglobulin E; Italian Ryegrass; June blue grass; June grass; June Kentucky blue grass; Junegrass; Kent blue grass; Kentucky blue grass; Kentucky bluegrass; Meadow fescue; Meadow grass; Orchard grass; Per rye grass; Perennial ryegrass; Phleum pretense; Poa pratensis Ab.IgE.RAST class; Point in time; PR; Random; Rye grass; Ryegrass; Serum; SmQn; SR; Timothy; Timothy grass

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

Orchard grass+Meadow Fescue+Perennial rye grass+Timothy+Kentucky blue grass IgE RAST class Multidisk (S) [Presence]Grass Allergen Mix 1 (Orchard grass+Meadow Fescue+Perennial rye grass+Timothy+Kentucky blue grass) IgE Ab RAST class [Presence] in Serum by MultidiskGrass Allerg Mix1 IgE RAST(Dactylis glomerata+Festuca elatior+Lolium perenne+Phleum pratense+Poa pratensis) Ab.IgE.RAST classALLERGYGrass mix (Orchard Grass, Meadow Fescue, Perennial Rye Grass, Timothy, Kentucky Blue Grass) allergy testPrThr

Frequently asked questions

Code details

Code24478-0
SystemLOINC
Display nameOrchard grass+Meadow Fescue+Perennial rye grass+Timothy+Kentucky blue grass IgE RAST class Multidisk (S) [Presence]
Description(Dactylis glomerata+Festuca elatior+Lolium perenne+Phleum pratense+Poa pratensis) Ab.IgE.RAST class
Short nameGrass Allerg Mix1 IgE RAST
Component(Dactylis glomerata+Festuca elatior+Lolium perenne+Phleum pratense+Poa pratensis) 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 released1.0o
Last changed2.75

Consumer names

Grass mix (Orchard Grass, Meadow Fescue, Perennial Rye Grass, Timothy, Kentucky Blue Grass) allergy test

Part names

(Dactylis glomerata+Festuca elatior+Lolium perenne+Phleum pratense+Poa pratensis) 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.