What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCObservation

LOINC Code 102519-6: Rough Pigweed IgE RAST (S) [Presence]

Name: LOINC Code 102519-6: Rough Pigweed IgE RAST (S) [Presence]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:17.456Z

102519-6 is a LOINC code used to identify Rough Pigweed 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 Pigweed rough 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 Pigweed rough 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: DEPRECATED
Order vs observation: Observation
Method: RAST

What it does not mean

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

Key facts

Deprecated Rough Pigweed IgE Ab [Presence] in Serum by Radioallergosorbent test (RAST)
Pigweed rough Ab.IgE
ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Amaranth; Amaranthus retroflexus; Amaranthus sp; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Immune globulin E; Immunoglobulin E; Point in time; PR; Radioallergosorbent test; Random; Rough Pigweed; 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

Rough Pigweed IgE RAST (S) [Presence]Deprecated Rough Pigweed IgE Ab [Presence] in Serum by Radioallergosorbent test (RAST)Deprecated Rough Pigweed IgE RASTPigweed rough Ab.IgEALLERGYRough pigweed allergy testPrThr

Frequently asked questions

Code details

Code102519-6

SystemLOINC

Display nameRough Pigweed IgE RAST (S) [Presence]

DescriptionPigweed rough Ab.IgE

Short nameDeprecated Rough Pigweed IgE RAST

ComponentPigweed rough Ab.IgE

PropertyPrThr

TimingPt

System (specimen)Ser

ScaleSemiQn

MethodRAST

ClassALLERGY

StatusDEPRECATED

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.75

Last changed2.79

Consumer names

Rough pigweed allergy test

Part names

Pigweed rough Ab.IgEPrThrPtSerSemiQnRASTPigweed rough IgEPresence 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.