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LOINC Code 22476-6: R. spotted fever group IgG (CSF) [Titer]

22476-6 is a LOINC code used to identify R. spotted fever group IgG (CSF) [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 Rickettsia spotted fever group Ab.IgG. It is commonly used with the system or sample type CSF.

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 Rickettsia spotted fever group Ab.IgG. It is commonly used with the system or sample type CSF.

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

  • Rickettsia spotted fever group IgG Ab [Titer] in Cerebral spinal fluid
  • Rickettsia spotted fever group Ab.IgG
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Cerebral spinal fluid; Cerebrospinal Fl; Dilution factor; Dilution Factor (Titer); ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; Microbiology; Neuro; Neurology; Point in time; Random; Rick SF; Ricket; Rickettsial; SmQn; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; Titer; Titered; Titre; Ttr

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

R. spotted fever group IgG (CSF) [Titer]Rickettsia spotted fever group IgG Ab [Titer] in Cerebral spinal fluidRick SF IgG Titr CSFRickettsia spotted fever group Ab.IgGMICRORickettsia spotted fever group IgG antibody, Spinal fluidTitr

Frequently asked questions

Code details

Code22476-6
SystemLOINC
Display nameR. spotted fever group IgG (CSF) [Titer]
DescriptionRickettsia spotted fever group Ab.IgG
Short nameRick SF IgG Titr CSF
ComponentRickettsia spotted fever group Ab.IgG
PropertyTitr
TimingPt
System (specimen)CSF
ScaleSemiQn
ClassMICRO
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0n
Last changed2.75

Consumer names

Rickettsia spotted fever group IgG antibody, Spinal fluid

Part names

Rickettsia spotted fever group Ab.IgGTitrPtCSFSemiQnRickettsia spotted fever group IgGTiterPoint in time (spot)Cerebral spinal fluid

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.