LOINCActiveBoth

LOINC Code 5173-0: S. pyogenes enzyme Ab LA (S) [Titer]

5173-0 is a LOINC code used to identify S. pyogenes enzyme Ab LA (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 Streptococcus pyogenes enzyme 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 Streptococcus pyogenes enzyme 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: LA

What it does not mean

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

Key facts

  • Streptococcus pyogenes enzyme Ab [Titer] in Serum by Latex agglutination
  • Streptococcus pyogenes enzyme Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Dilution factor; Dilution Factor (Titer); Enz; Enzymes; GAS; Group A Strep; ID; Infectious Disease; InfectiousDisease; LAT; Latex agglutination; Microbiology; Point in time; Random; S pyog.enz; S pyogenes; Serum; SmQn; SR; Steptococcus Group A; Strep; Strept; Streptococci group A; Streptococcus group A; Streptozyme; 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

S. pyogenes enzyme Ab LA (S) [Titer]Streptococcus pyogenes enzyme Ab [Titer] in Serum by Latex agglutinationS pyog.enz Ab Titr Ser LAStreptococcus pyogenes enzyme AbMICROStreptococcus pyogenes enzyme antibody, BloodTitr

Frequently asked questions

Code details

Code5173-0
SystemLOINC
Display nameS. pyogenes enzyme Ab LA (S) [Titer]
DescriptionStreptococcus pyogenes enzyme Ab
Short nameS pyog.enz Ab Titr Ser LA
ComponentStreptococcus pyogenes enzyme Ab
PropertyTitr
TimingPt
System (specimen)Ser
ScaleSemiQn
MethodLA
ClassMICRO
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.75

Consumer names

Streptococcus pyogenes enzyme antibody, Blood

Part names

Streptococcus pyogenes enzyme AbTitrPtSerSemiQnLATiterPoint in time (spot)SerumLatex agglutination

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 5173-0 | HealthAssure