LOINCActiveObservation

LOINC Code 66718-8: R. typhi and R. spotted fever group IgG and IgM (Specimen) [Interp]

66718-8 is a LOINC code used to identify R. typhi and R. spotted fever group IgG and IgM (Specimen) [Interp] 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 typhi & Rickettsia spotted fever group Ab.IgG & IgM. It is commonly used with the system or sample type XXX.

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 typhi & Rickettsia spotted fever group Ab.IgG & IgM. It is commonly used with the system or sample type XXX.

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: Observation

What it does not mean

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

Key facts

  • Rickettsia typhi and Rickettsia spotted fever group IgG and IgM [Interpretation] in Specimen
  • Rickettsia typhi & Rickettsia spotted fever group Ab.IgG & IgM
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Endemic typhus; ID; IgG+IgM; Immune globulin G; Immune globulin M; Immunoglobulin G; Immunoglobulin M; Impression; Impression/interpretation of study; Impressions; Infectious Disease; InfectiousDisease; Interp; Interpretation; Microbiology; Misc; Miscellaneous; Murine typhus; Nominal; Other; Point in time; R typhi; R typhi and SF; Random; Rick SF; Ricket; Rickettsial; Spec; To be specified in another part of the message; Typh; Typhus; Unspecified

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. typhi and R. spotted fever group IgG and IgM (Specimen) [Interp]Rickettsia typhi and Rickettsia spotted fever group IgG and IgM [Interpretation] in SpecimenR typhi and SF IgG+IgM Spec-ImpRickettsia typhi & Rickettsia spotted fever group Ab.IgG & IgMMICRORickettsia typhi & rickettsia spotted fever group IgG and IgM antibodies, SpecimenImp

Frequently asked questions

Code details

Code66718-8
SystemLOINC
Display nameR. typhi and R. spotted fever group IgG and IgM (Specimen) [Interp]
DescriptionRickettsia typhi & Rickettsia spotted fever group Ab.IgG & IgM
Short nameR typhi and SF IgG+IgM Spec-Imp
ComponentRickettsia typhi & Rickettsia spotted fever group Ab.IgG & IgM
PropertyImp
TimingPt
System (specimen)XXX
ScaleNom
ClassMICRO
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.38
Last changed2.69

Consumer names

Rickettsia typhi & rickettsia spotted fever group IgG and IgM antibodies, Specimen

Part names

Rickettsia typhi & Rickettsia spotted fever group Ab.IgG & IgMImpPtXXXNomRickettsia typhi and Rickettsia spotted fever group IgG and IgMImpression/interpretation of studyPoint in time (spot)

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.