LOINC Code 20685-4: A. marginale Ab Aggl.card Ql (S)

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 Anaplasma marginale 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: Aggl.card

What it does not mean

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

Key facts

• Anaplasma marginale Ab [Presence] in Serum by Card agglutination
• Anaplasma marginale Ab
• Federally mandated regulatory veterinary test method (US)
• A marginale; ABS; Aby; Agg; Agglut; Agglutination; Anaplasmosis; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Bovine anaplasmosis; Card aggl; ID; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serum; SR; Vet; Veterinary

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