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LOINC Code 93511-4: Rickettsia rickettsii and Coxiella burnetii phase 1 and 2 IgG panel (S)

93511-4 is a LOINC code used to identify Rickettsia rickettsii and Coxiella burnetii phase 1 and 2 IgG panel (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 Rickettsia rickettsii & Coxiella burnetii phase 1 & Coxiella burnetii phase 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 Rickettsia rickettsii & Coxiella burnetii phase 1 & Coxiella burnetii phase 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

Rickettsia rickettsii and Coxiella burnetii phase 1 and Coxiella burnetii phase 2 IgG panel - Serum
Rickettsia rickettsii & Coxiella burnetii phase 1 & Coxiella burnetii phase 2 Ab.IgG panel
This panel includes terms to report the detection of IgG antibodies to Rickettsia rickettsii, the causative agent of Rocky Mountain Spotted Fever (RMSF), and Coxiella burnetii, the agent that causes Q fever. Q fever was previously classified as a rickettsial disease but no longer is based on reclassification of C. burnetti into the order of Legionellales. [https//rarediseases.org/rare-diseases/q-fever/]
C burnet; C burnet Ph1; C burnet Ph2; C burnetii; Coxiella burnetii phase I; Coxiella burnetii phase II; Coxiella burnettii; i; II; Immune globulin G; Immunoglobulin G; Microbiology; Pan; PANEL.MICROBIOLOGY; Panl; Pnl; Point in time; Q fev; Q fever; Qfever; R rickettsi; R rickettsii; R. rickettsii + C. burnetti 1 + 2 IgG Pnl; Random; Ricket; Rickettsial; RMSF; Rocky mountain spotted fever; Serum; Spotted fever; 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

Rickettsia rickettsii and Coxiella burnetii phase 1 and 2 IgG panel (S)Rickettsia rickettsii and Coxiella burnetii phase 1 and Coxiella burnetii phase 2 IgG panel - SerumR. rickettsii + C. burnetii 1 2 IgG PnlRickettsia rickettsii & Coxiella burnetii phase 1 & Coxiella burnetii phase 2 Ab.IgG panelPANEL.MICRORickettsia rickettsii and Coxiella burnetii phase 1 and 2 IgG panel, Blood-

Frequently asked questions

Code details

Code93511-4
SystemLOINC
Display nameRickettsia rickettsii and Coxiella burnetii phase 1 and 2 IgG panel (S)
DescriptionRickettsia rickettsii & Coxiella burnetii phase 1 & Coxiella burnetii phase 2 Ab.IgG panel
Short nameR. rickettsii + C. burnetii 1 2 IgG Pnl
ComponentRickettsia rickettsii & Coxiella burnetii phase 1 & Coxiella burnetii phase 2 Ab.IgG panel
Property-
TimingPt
System (specimen)Ser
Scale-
ClassPANEL.MICRO
StatusACTIVE
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.67
Last changed2.67

Consumer names

Rickettsia rickettsii and Coxiella burnetii phase 1 and 2 IgG panel, Blood

Part names

Rickettsia rickettsii & Coxiella burnetii phase 1 & Coxiella burnetii phase 2 Ab.IgG panel-PtSerRickettsia rickettsii and Coxiella burnetii phase 1 and Coxiella burnetii phase 2 IgG panelPoint 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.