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 16488-9: B. abortus IgG CF Qn (S)

Name: LOINC Code 16488-9: B. abortus IgG CF Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

16488-9 is a LOINC code used to identify B. abortus IgG CF Qn (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.IgG. 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 abortus 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: Both
Method: Comp fix

What it does not mean

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

Key facts

Brucella abortus IgG Ab [Units/volume] in Serum by Complement fixation
Brucella abortus Ab.IgG
Abort; ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; B abortus; Bangs disease; Bovine brucellosis; Bruc; Brucellosis; CF; Comp fixation; Compfix; Complement fixation; Contagious abortion; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; Microbiology; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; Undulant fever

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. abortus IgG CF Qn (S) (16488-9)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

B. abortus IgG CF Qn (S)Brucella abortus IgG Ab [Units/volume] in Serum by Complement fixationB abortus IgG Ser CF-aCncBrucella abortus Ab.IgGMICROBrucella abortus IgG antibody, BloodACnc

Frequently asked questions

Code details

Code16488-9

SystemLOINC

Display nameB. abortus IgG CF Qn (S)

DescriptionBrucella abortus Ab.IgG

Short nameB abortus IgG Ser CF-aCnc

ComponentBrucella abortus Ab.IgG

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

MethodComp fix

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0l

Last changed2.69

Consumer names

Brucella abortus IgG antibody, Blood

Part names

Brucella abortus Ab.IgGACncPtSerQnComp fixBrucella abortus IgGArbitrary ConcentrationPoint 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.