LOINCActiveBoth

LOINC Code 20727-4: B. abortus Ab Acidified buffered plate agglutination Ql (S)

20727-4 is a LOINC code used to identify B. abortus Ab Acidified buffered plate agglutination 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 Brucella abortus Ab. 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 Brucella abortus Ab. 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: Aggl.plate.buffered acidified

What it does not mean

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

Key facts

  • Brucella abortus Ab [Presence] in Serum by Acidified buffered plate agglutination
  • Brucella abortus Ab
  • Federally mandated regulatory veterinary test method (US)
  • Abort; ABS; Aby; Agg; Agglut; Agglutination; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; B abortus; Bangs disease; BAPA; Bovine brucellosis; Bruc; Brucellosis; Buff plate aggl; Contagious abortion; ID; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Plate aggl; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serum; SR; Undulant fever; Vet; Veterinary

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

B. abortus Ab Acidified buffered plate agglutination Ql (S)Brucella abortus Ab [Presence] in Serum by Acidified buffered plate agglutinationB abortus Ab Ser Ql Buff plate agglBrucella abortus AbMICROBrucella abortus antibody, BloodPrThr

Frequently asked questions

Code details

Code20727-4
SystemLOINC
Display nameB. abortus Ab Acidified buffered plate agglutination Ql (S)
DescriptionBrucella abortus Ab
Short nameB abortus Ab Ser Ql Buff plate aggl
ComponentBrucella abortus Ab
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
MethodAggl.plate.buffered acidified
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0m
Last changed2.67

Consumer names

Brucella abortus antibody, Blood

Part names

Brucella abortus AbPrThrPtSerOrdAggl.plate.buffered acidifiedPresence or ThresholdPoint in time (spot)SerumAcidified buffered plate 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.