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.

LOINCActiveOrder

LOINC Code 41840-0: C. burnetii phase 1 and 2 IgG panel (S) [Titer]

Name: LOINC Code 41840-0: C. burnetii phase 1 and 2 IgG panel (S) [Titer]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:27.681Z

41840-0 is a LOINC code used to identify C. burnetii phase 1 and 2 IgG panel (S) [Titer] 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 1 & 2 Ab.IgG panel. 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 1 & 2 Ab.IgG panel. 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: Order
Panel type: Panel

What it does not mean

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

Key facts

Coxiella burnetii phase 1 and 2 IgG panel [Titer] - Serum
Coxiella burnetii phase 1 & 2 Ab.IgG panel
C burnet; C burnet Ph1; C burnet Ph1 + Ph2; C burnet Ph1+2 IgG Pnl; C burnetii; Coxiella burnetii phase I; Coxiella burnettii; Dilution factor; Dilution Factor (Titer); i; ID; II; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; Microbiology; Pan; PANEL.MICROBIOLOGY; Panl; Pnl; Point in time; Q fev; Q fever; Qfever; Random; Serum; SmQn; SR; Titer; Titered; Titre; Ttr; UniversalLabOrders

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 1 and 2 IgG panel (S) [Titer]Coxiella burnetii phase 1 and 2 IgG panel [Titer] - SerumC burnet Ph1+2 IgG Pnl Titr SerCoxiella burnetii phase 1 & 2 Ab.IgG panelPANEL.MICROCoxiella burnetii phase 1 and 2 IgG panel, BloodTitr

Frequently asked questions

Code details

Code41840-0

SystemLOINC

Display nameC. burnetii phase 1 and 2 IgG panel (S) [Titer]

DescriptionCoxiella burnetii phase 1 & 2 Ab.IgG panel

Short nameC burnet Ph1+2 IgG Pnl Titr Ser

ComponentCoxiella burnetii phase 1 & 2 Ab.IgG panel

PropertyTitr

TimingPt

System (specimen)Ser

ScaleSemiQn

ClassPANEL.MICRO

StatusACTIVE

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.16

Last changed2.75

Consumer names

Coxiella burnetii phase 1 and 2 IgG panel, Blood

Part names

Coxiella burnetii phase 1 & 2 Ab.IgG panelTitrPtSerSemiQnCoxiella burnetii phase 1 and 2 IgG panelTiterPoint 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.