LOINC Code 20459-4: S. agalactiae Ag LA Ql (Specimen)

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 XXX.

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 agalactiae Ag [Presence] in Specimen by Latex agglutination
• Streptococcus agalactiae Ag
• Antigen; Antigens; GBS; Gp B Strep; Group B; Group B Strep; ID; Infectious Disease; InfectiousDisease; LAT; Latex agglutination; Microbiology; Misc; Miscellaneous; Ordinal; Other; Point in time; PR; QL; Qual; Qualitative; Random; S agalactiae; Screen; Spec; Steptococcus Group B; Strep; Strep B; Strep group B; Strept; Streptococci group B; To be specified in another part of the message; Unspecified

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

Frequently asked questions