LOINCActiveBoth

LOINC Code 25420-1: Rubella virus IgM LA Ql (S)

25420-1 is a LOINC code used to identify Rubella virus IgM LA Ql (S) 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 Rubella virus Ab.IgM. It is commonly used with the system or sample type Ser.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Rubella virus Ab.IgM. 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: Both
  • Method: LA

What it does not mean

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

Key facts

  • Rubella virus IgM Ab [Presence] in Serum by Latex agglutination
  • Rubella virus Ab.IgM
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Congenital rubella syndrome; German measles; ID; Immune globulin M; Immunoglobulin M; Infectious Disease; InfectiousDisease; LAT; Latex agglutination; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; RUBV; Screen; Serum; 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

Rubella virus IgM LA Ql (S)Rubella virus IgM Ab [Presence] in Serum by Latex agglutinationRUBV IgM Ser Ql LARubella virus Ab.IgMMICRORubella virus IgM antibody, BloodPrThr

Frequently asked questions

Code details

Code25420-1
SystemLOINC
Display nameRubella virus IgM LA Ql (S)
DescriptionRubella virus Ab.IgM
Short nameRUBV IgM Ser Ql LA
ComponentRubella virus Ab.IgM
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
MethodLA
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.56

Consumer names

Rubella virus IgM antibody, Blood

Part names

Rubella virus Ab.IgMPrThrPtSerOrdLARubella virus IgMPresence or ThresholdPoint in time (spot)SerumLatex agglutination

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 25420-1 | HealthAssure