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.

LOINCActiveBoth

LOINC Code 20733-2: B. ovis Ab CF Ql (S)

Name: LOINC Code 20733-2: B. ovis Ab CF Ql (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

20733-2 is a LOINC code used to identify B. ovis Ab CF 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 ovis Ab. 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 Brucella ovis 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: Comp fix

What it does not mean

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

Key facts

Brucella ovis Ab [Presence] in Serum by Complement fixation
Brucella ovis Ab
ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; B ovis; Bruc; Brucellosis; CF; Comp fixation; Compfix; Complement fixation; ID; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Ovine epididymitis; Point in time; PR; QL; Qual; Qualitative; Ram epididymitis; Random; Screen; Serum; SR; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for B. ovis Ab CF Ql (S) (20733-2)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

B. ovis Ab CF Ql (S)Brucella ovis Ab [Presence] in Serum by Complement fixationB ovis Ab Ser Ql CFBrucella ovis AbMICROBrucella ovis antibody, BloodPrThr

Frequently asked questions

Code details

Code20733-2

SystemLOINC

Display nameB. ovis Ab CF Ql (S)

DescriptionBrucella ovis Ab

Short nameB ovis Ab Ser Ql CF

ComponentBrucella ovis Ab

PropertyPrThr

TimingPt

System (specimen)Ser

ScaleOrd

MethodComp fix

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0m

Last changed2.67

Consumer names

Brucella ovis antibody, Blood

Part names

Brucella ovis AbPrThrPtSerOrdComp fixPresence or ThresholdPoint in time (spot)SerumComplement fixation

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.