LOINCActiveBoth

LOINC Code 31967-3: S. agalactiae Ag Ql (Throat)

31967-3 is a LOINC code used to identify S. agalactiae Ag Ql (Throat) 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 agalactiae Ag. It is commonly used with the system or sample type Thrt.

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 agalactiae Ag. It is commonly used with the system or sample type Thrt.

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

  • Streptococcus agalactiae Ag [Presence] in Throat
  • Streptococcus agalactiae Ag
  • Antigen; Antigens; GBS; Gp B Strep; Group B; Group B Strep; ID; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; S agalactiae; Screen; Steptococcus Group B; Strep; Strep B; Strep group B; Strept; Streptococci group B; Throat; Upper respiratory

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. agalactiae Ag Ql (Throat)Streptococcus agalactiae Ag [Presence] in ThroatGp B Strep Ag Throat QlStreptococcus agalactiae AgMICROStreptococcus agalactiae antigen, ThroatPrThr

Frequently asked questions

Code details

Code31967-3
SystemLOINC
Display nameS. agalactiae Ag Ql (Throat)
DescriptionStreptococcus agalactiae Ag
Short nameGp B Strep Ag Throat Ql
ComponentStreptococcus agalactiae Ag
PropertyPrThr
TimingPt
System (specimen)Thrt
ScaleOrd
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.07
Last changed2.73

Consumer names

Streptococcus agalactiae antigen, Throat

Part names

Streptococcus agalactiae AgPrThrPtThrtOrdPresence or ThresholdPoint in time (spot)Throat

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 31967-3 | HealthAssure