LOINCActiveBoth

LOINC Code 25711-3: L. interrogans sv Icterohaemorrhagiae Ab CF (S) [Titer]

25711-3 is a LOINC code used to identify L. interrogans sv Icterohaemorrhagiae Ab CF (S) [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 Leptospira interrogans serovar Icterohaemorrhagiae Ab. It is commonly used with the system or sample type Ser.

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 Leptospira interrogans serovar Icterohaemorrhagiae Ab. 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: Both
  • Method: Comp fix

What it does not mean

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

Key facts

  • Leptospira interrogans sv Icterohaemorrhagiae Ab [Titer] in Serum by Complement fixation
  • Leptospira interrogans serovar Icterohaemorrhagiae Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; CF; Comp fixation; Compfix; Complement fixation; Dilution factor; Dilution Factor (Titer); ID; Infectious Disease; InfectiousDisease; L inter; L inter Icter; L interrogans; Leptospirosis; Microbiology; Point in time; Random; Serum; SmQn; SR; 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

L. interrogans sv Icterohaemorrhagiae Ab CF (S) [Titer]Leptospira interrogans sv Icterohaemorrhagiae Ab [Titer] in Serum by Complement fixationL inter Icter Ab Titr Ser CFLeptospira interrogans serovar Icterohaemorrhagiae AbMICROLeptospira interrogans serovar icterohaemorrhagiae antibody, BloodTitr

Frequently asked questions

Code details

Code25711-3
SystemLOINC
Display nameL. interrogans sv Icterohaemorrhagiae Ab CF (S) [Titer]
DescriptionLeptospira interrogans serovar Icterohaemorrhagiae Ab
Short nameL inter Icter Ab Titr Ser CF
ComponentLeptospira interrogans serovar Icterohaemorrhagiae Ab
PropertyTitr
TimingPt
System (specimen)Ser
ScaleSemiQn
MethodComp fix
ClassMICRO
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.75

Consumer names

Leptospira interrogans serovar icterohaemorrhagiae antibody, Blood

Part names

Leptospira interrogans serovar Icterohaemorrhagiae AbTitrPtSerSemiQnComp fixLeptospira interrogans sv Icterohaemorrhagiae AbTiterPoint in time (spot)SerumComplement fixation

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 25711-3 | HealthAssure