LOINC Code 23049-0: EEEV Ag CF 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 Eastern equine encephalitis 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
• Method: Comp fix

What it does not mean

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

Key facts

• Eastern equine encephalitis virus Ag [Presence] in Specimen by Complement fixation
• Eastern equine encephalitis virus Ag
• Antigen; Antigens; CF; Comp fixation; Compfix; Complement fixation; EEE virus; EEEV; Enc; Enceph; Encephalomyelitis; Equin; ID; Infectious Disease; InfectiousDisease; Microbiology; Misc; Miscellaneous; Ordinal; Other; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Spec; To be specified in another part of the message; Togavirus; 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