LOINC Code 31820-4: Equine infectious anemia virus Ag 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 Equine infectious anemia virus 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

What it does not mean

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

Key facts

• Equine infectious anemia virus Ag [Presence] in Specimen
• Equine infectious anemia virus Ag
• Antigen; Antigens; EIAV; Equin; Equine infectious anemia; ID; Infectious Disease; InfectiousDisease; Lentivirus; Microbiology; Misc; Miscellaneous; Ordinal; Other; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Spec; Swamp fever; To be specified in another part of the message; Unspecified; 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