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 7830-3: C. burnetii phase 2 IgG Qn (S)

Name: LOINC Code 7830-3: C. burnetii phase 2 IgG Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:58.756Z

7830-3 is a LOINC code used to identify C. burnetii phase 2 IgG 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 Coxiella burnetii phase 2 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 Coxiella burnetii phase 2 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

What it does not mean

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

Key facts

Coxiella burnetii phase 2 IgG Ab [Units/volume] in Serum
Coxiella burnetii phase 2 Ab.IgG
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; C burnet; C burnet Ph2; C burnetii; Coxiella burnetii phase II; Coxiella burnettii; ID; II; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; Microbiology; Point in time; Q fev; Q fever; Qfever; QNT; Quan; Quant; Quantitative; Random; 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

C. burnetii phase 2 IgG Qn (S)Coxiella burnetii phase 2 IgG Ab [Units/volume] in SerumC burnet Ph2 IgG Ser-aCncCoxiella burnetii phase 2 Ab.IgGMICROCoxiella burnetii phase 2 IgG antibody, BloodACnc

Frequently asked questions

Code details

Code7830-3

SystemLOINC

Display nameC. burnetii phase 2 IgG Qn (S)

DescriptionCoxiella burnetii phase 2 Ab.IgG

Short nameC burnet Ph2 IgG Ser-aCnc

ComponentCoxiella burnetii phase 2 Ab.IgG

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0h(2)

Last changed2.73

Consumer names

Coxiella burnetii phase 2 IgG antibody, Blood

Part names

Coxiella burnetii phase 2 Ab.IgGACncPtSerQnCoxiella burnetii phase 2 IgGArbitrary ConcentrationPoint in time (spot)Serum

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.