LOINCActiveBoth

LOINC Code 29740-8: L. interrogans sv Szwajizak Ab Ql (S)

29740-8 is a LOINC code used to identify L. interrogans sv Szwajizak Ab Ql (S) 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 Szwajizak 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 Szwajizak 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

What it does not mean

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

Key facts

  • Leptospira interrogans sv Szwajizak Ab [Presence] in Serum
  • Leptospira interrogans serovar Szwajizak Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; ID; Infectious Disease; InfectiousDisease; L inter; L inter Szwaji; L interrogans; Leptospirosis; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serum; SR

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 Szwajizak Ab Ql (S)Leptospira interrogans sv Szwajizak Ab [Presence] in SerumL inter Szwaji Ab Ser QlLeptospira interrogans serovar Szwajizak AbMICROLeptospira interrogans serovar Szwajizak antibody, BloodPrThr

Frequently asked questions

Code details

Code29740-8
SystemLOINC
Display nameL. interrogans sv Szwajizak Ab Ql (S)
DescriptionLeptospira interrogans serovar Szwajizak Ab
Short nameL inter Szwaji Ab Ser Ql
ComponentLeptospira interrogans serovar Szwajizak Ab
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.03
Last changed2.56

Consumer names

Leptospira interrogans serovar Szwajizak antibody, Blood

Part names

Leptospira interrogans serovar Szwajizak AbPrThrPtSerOrdLeptospira interrogans sv Szwajizak AbPresence or ThresholdPoint in time (spot)Serum

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 29740-8 | HealthAssure