LOINCActiveBoth

LOINC Code 19106-4: HSV IgG Ql (S)

19106-4 is a LOINC code used to identify HSV IgG 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 Herpes simplex virus Ab.IgG. It is commonly used with the system or sample type Ser.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Herpes simplex virus Ab.IgG. 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

  • Herpes simplex virus IgG Ab [Presence] in Serum
  • Herpes simplex virus Ab.IgG
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Herp splx; HSV; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serum; SR

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

HSV IgG Ql (S)Herpes simplex virus IgG Ab [Presence] in SerumHSV IgG Ser QlHerpes simplex virus Ab.IgGMICROHerpes simplex virus (HSV) IgG antibody, BloodPrThr

Frequently asked questions

Code details

Code19106-4
SystemLOINC
Display nameHSV IgG Ql (S)
DescriptionHerpes simplex virus Ab.IgG
Short nameHSV IgG Ser Ql
ComponentHerpes simplex virus Ab.IgG
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.70

Consumer names

Herpes simplex virus (HSV) IgG antibody, Blood

Part names

Herpes simplex virus Ab.IgGPrThrPtSerOrdHerpes simplex virus IgGPresence or ThresholdPoint 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 19106-4 | HealthAssure