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.

LOINCActiveObservation

LOINC Code 102890-1: T. vulgaris IgG RAST (S) [Presence]

Name: LOINC Code 102890-1: T. vulgaris IgG RAST (S) [Presence]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:17.902Z

102890-1 is a LOINC code used to identify T. vulgaris IgG 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 Thermoactinomyces vulgaris Ab.IgG. 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 Thermoactinomyces vulgaris Ab.IgG. 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

Thermoactinomyces vulgaris IgG Ab [Presence] in Serum by Radioallergosorbent test (RAST)
Thermoactinomyces vulgaris Ab.IgG
ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Farmers lung; Gm23; Immune globulin G; Immunoglobulin G; m23; m51; Point in time; PR; Radioallergosorbent test; Random; RGm23; Rm213; Serum; SmQn; SR; T vulgaris; Thermoactnom

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

T. vulgaris IgG RAST (S) [Presence]Thermoactinomyces vulgaris IgG Ab [Presence] in Serum by Radioallergosorbent test (RAST)T vulgaris IgG RASTThermoactinomyces vulgaris Ab.IgGALLERGYThermoactinomyces vulgaris IgG antibodyPrThr

Frequently asked questions

Code details

Code102890-1

SystemLOINC

Display nameT. vulgaris IgG RAST (S) [Presence]

DescriptionThermoactinomyces vulgaris Ab.IgG

Short nameT vulgaris IgG RAST

ComponentThermoactinomyces vulgaris Ab.IgG

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

Thermoactinomyces vulgaris IgG antibody

Part names

Thermoactinomyces vulgaris Ab.IgGPrThrPtSerSemiQnRASTThermoactinomyces vulgaris IgGPresence 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.