LOINCActiveObservation

LOINC Code 75189-1: First reactive non-treponemal test titer

75189-1 is a LOINC code used to identify First reactive non-treponemal test 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 First reactive non-treponemal test titer. It is commonly used with the system or sample type ^Patient.

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 First reactive non-treponemal test titer. It is commonly used with the system or sample type ^Patient.

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

  • First reactive non-treponemal test titer
  • Dilution factor; Dilution Factor (Titer); Point in time; QNT; Quan; Quant; Quantitative; Random; Reac; React; Survey; SURVEY.CDC; 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

First reactive non-treponemal test titerSURVEY.CDCTitrPt^PatientQnTiter

Frequently asked questions

Code details

Code75189-1
SystemLOINC
Display nameFirst reactive non-treponemal test titer
ComponentFirst reactive non-treponemal test titer
PropertyTitr
TimingPt
System (specimen)^Patient
ScaleQn
ClassSURVEY.CDC
Example unitstiter
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.48
Last changed2.48

Part names

First reactive non-treponemal test titerTitrPt^PatientQnTiterPoint 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.

LOINC Code 75189-1 | HealthAssure