LOINCActiveBoth

LOINC Code 87361-2: T. gondii Ab/Negative control IA [Relative ratio]

87361-2 is a LOINC code used to identify T. gondii Ab/Negative control IA [Relative ratio] 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 Toxoplasma gondii Ab/Negative control. It is commonly used with the system or sample type Ser/Plas.

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 Toxoplasma gondii Ab/Negative control. It is commonly used with the system or sample type Ser/Plas.

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
  • Method: IA

What it does not mean

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

Key facts

  • Toxoplasma gondii Ab/Negative control in Serum or Plasma by Immunoassay
  • Toxoplasma gondii Ab/Negative control
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; EIA; ELFA; ELISA; Enzyme immunoassay; IAA; ID; Infectious Disease; InfectiousDisease; MEIA; Microbiology; NEG; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; Relative ratio; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; SUDS; T gondii; Toxo; Toxoplasmosis

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

T. gondii Ab/Negative control IA [Relative ratio]Toxoplasma gondii Ab/Negative control in Serum or Plasma by ImmunoassayT gondii Ab SerPl IAToxoplasma gondii Ab/Negative controlMICROToxoplasma gondii/Negative Control, BloodRelRto

Frequently asked questions

Code details

Code87361-2
SystemLOINC
Display nameT. gondii Ab/Negative control IA [Relative ratio]
DescriptionToxoplasma gondii Ab/Negative control
Short nameT gondii Ab SerPl IA
ComponentToxoplasma gondii Ab/Negative control
PropertyRelRto
TimingPt
System (specimen)Ser/Plas
ScaleQn
MethodIA
ClassMICRO
Example unitsratio
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.63
Last changed2.63

Consumer names

Toxoplasma gondii/Negative Control, Blood

Part names

Toxoplasma gondii Ab/Negative controlRelRtoPtSer/PlasQnIARelative RatioPoint in time (spot)Serum or PlasmaImmunoassay

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.

LOINC Code 87361-2 | HealthAssure