LOINCActiveObservation

LOINC Code 102254-0: Cotton western IgE RAST (S) [Presence]

102254-0 is a LOINC code used to identify Cotton western IgE RAST (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 Cotton western Ab.IgE. 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 Cotton western Ab.IgE. 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: RAST

What it does not mean

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

Key facts

  • Cotton western IgE Ab [Presence] in Serum by Radioallergosorbent test (RAST)
  • Cotton western Ab.IgE
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Immune globulin E; Immunoglobulin E; Point in time; PR; Radioallergosorbent test; Random; Serum; SmQn; SR; West; West Cotton

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

Cotton western IgE RAST (S) [Presence]Cotton western IgE Ab [Presence] in Serum by Radioallergosorbent test (RAST)West Cotton IgE RASTCotton western Ab.IgEALLERGYCotton western allergy testPrThr

Frequently asked questions

Code details

Code102254-0
SystemLOINC
Display nameCotton western IgE RAST (S) [Presence]
DescriptionCotton western Ab.IgE
Short nameWest Cotton IgE RAST
ComponentCotton western Ab.IgE
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleSemiQn
MethodRAST
ClassALLERGY
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Cotton western allergy test

Part names

Cotton western Ab.IgEPrThrPtSerSemiQnRASTPresence or ThresholdPoint in time (spot)SerumRadioallergosorbent test (RAST)

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.