LOINCActiveBoth

LOINC Code 24285-9: WEEV Ab spec 1 (S) [Titer]

24285-9 is a LOINC code used to identify WEEV Ab spec 1 (S) [Titer] 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 Western equine encephalitis virus Ab^1st specimen. It is commonly used with the system or sample type Ser.

Reviewed by HealthAssure Clinical TeamUpdated 21 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 Western equine encephalitis virus Ab^1st specimen. 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

What it does not mean

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

Key facts

  • Western equine encephalitis virus Ab [Titer] in Serum --1st specimen
  • Western equine encephalitis virus Ab^1st specimen
  • ABS; Aby; Acute specimen; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Dilution factor; Dilution Factor (Titer); Enc; Enceph; Encephalomyelitis; Equin; First; ID; Infectious Disease; InfectiousDisease; Microbiology; Point in time; Pre immunization; Random; Serum; SmQn; sp1; Spec; SR; Titer; Titered; Titre; Togavirus; Ttr; WEE virus; WEEV; West

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

WEEV Ab spec 1 (S) [Titer]Western equine encephalitis virus Ab [Titer] in Serum --1st specimenWEEV Ab sp1 Titr SerWestern equine encephalitis virus Ab^1st specimenMICROWEEV antibody specimen 1, BloodTitr

Frequently asked questions

Code details

Code24285-9
SystemLOINC
Display nameWEEV Ab spec 1 (S) [Titer]
DescriptionWestern equine encephalitis virus Ab^1st specimen
Short nameWEEV Ab sp1 Titr Ser
ComponentWestern equine encephalitis virus Ab^1st specimen
PropertyTitr
TimingPt
System (specimen)Ser
ScaleSemiQn
ClassMICRO
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0o
Last changed2.75

Consumer names

WEEV antibody specimen 1, Blood

Part names

Western equine encephalitis virus Ab^1st specimenTitrPtSerSemiQnTiterPoint in time (spot)Serum

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 24285-9 | HealthAssure