LOINCActiveBoth

LOINC Code 69949-6: EBV capsid IgG avidity IA Ql (S)

69949-6 is a LOINC code used to identify EBV capsid IgG avidity IA Ql (S) 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 Epstein Barr virus capsid Ab.IgG avidity. 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 Epstein Barr virus capsid Ab.IgG avidity. 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: IA

What it does not mean

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

Key facts

  • Epstein Barr virus capsid IgG Ab avidity [Presence] in Serum by Immunoassay
  • Epstein Barr virus capsid Ab.IgG avidity
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; CAP; EBV; EBV capsid Ab; EBV IgG Avidity; EBV VCA; EIA; ELFA; ELISA; Enzyme immunoassay; Epstn; HHV-4; human herpesvirus 4; IAA; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; MEIA; Microbiology; Mono; Mononucleosis; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serum; SR; SUDS; VCA; Viral capsid

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

EBV capsid IgG avidity IA Ql (S)Epstein Barr virus capsid IgG Ab avidity [Presence] in Serum by ImmunoassayEBV VCA IgG Avidity Ser Ql IAEpstein Barr virus capsid Ab.IgG avidityMICROEpstein Barr virus (EBV) Capsid IgG avidity, BloodPrThr

Frequently asked questions

Code details

Code69949-6
SystemLOINC
Display nameEBV capsid IgG avidity IA Ql (S)
DescriptionEpstein Barr virus capsid Ab.IgG avidity
Short nameEBV VCA IgG Avidity Ser Ql IA
ComponentEpstein Barr virus capsid Ab.IgG avidity
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
MethodIA
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.40
Last changed2.68

Consumer names

Epstein Barr virus (EBV) Capsid IgG avidity, Blood

Part names

Epstein Barr virus capsid Ab.IgG avidityPrThrPtSerOrdIAEpstein Barr virus capsid IgG avidityPresence or ThresholdPoint in time (spot)SerumImmunoassay

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 69949-6 | HealthAssure