LOINCActiveObservation

LOINC Code 102878-6: Lactoglobulin IgA RAST (S) [Presence]

102878-6 is a LOINC code used to identify Lactoglobulin IgA 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 Lactoglobulin Ab.IgA. 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 Lactoglobulin Ab.IgA. 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

  • Lactoglobulin IgA Ab [Presence] in Serum by Radioallergosorbent test (RAST)
  • Lactoglobulin Ab.IgA
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Immune globulin A; Immunoglobulin A; Point in time; PR; Radioallergosorbent test; Random; Serum; SmQn; 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

Lactoglobulin IgA RAST (S) [Presence]Lactoglobulin IgA Ab [Presence] in Serum by Radioallergosorbent test (RAST)Lactoglob IgA RASTLactoglobulin Ab.IgAALLERGYLactoglobulin IgA antibodyPrThr

Frequently asked questions

Code details

Code102878-6
SystemLOINC
Display nameLactoglobulin IgA RAST (S) [Presence]
DescriptionLactoglobulin Ab.IgA
Short nameLactoglob IgA RAST
ComponentLactoglobulin Ab.IgA
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

Lactoglobulin IgA antibody

Part names

Lactoglobulin Ab.IgAPrThrPtSerSemiQnRASTLactoglobulin IgAPresence 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.

LOINC Code 102878-6 | HealthAssure