LOINC

LOINC Code 6423-8: HSV Ag EIA Ql (Genital specimen)

6423-8 is a LOINC code used to identify HSV Ag EIA Ql (Genital specimen) 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 Ag. It is commonly used with the system or sample type Genital.

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 Herpes simplex virus Ag. It is commonly used with the system or sample type Genital.

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: DEPRECATED
  • Method: EIA

What it does not mean

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

Key facts

  • Deprecated Herpes simplex virus Ag [Presence] in Genital specimen by Immunoassay
  • Herpes simplex virus Ag
  • Antigen; Antigens; Arbitrary concentration; ELFA; ELISA; Enzyme immunoassay; Gen; Genital tract; Herp splx; HSV; IAA; ID; Infectious Disease; InfectiousDisease; MEIA; Microbiology; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen; SUDS; Urogenit; Urogenital

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 Ag EIA Ql (Genital specimen)Deprecated Herpes simplex virus Ag [Presence] in Genital specimen by ImmunoassayDeprecated HSV Ag Genital Ql EIAHerpes simplex virus AgMICROHerpes simplex virus (HSV) antigen, Genital specimenACnc

Frequently asked questions

Code details

Code6423-8
SystemLOINC
Display nameHSV Ag EIA Ql (Genital specimen)
DescriptionHerpes simplex virus Ag
Short nameDeprecated HSV Ag Genital Ql EIA
ComponentHerpes simplex virus Ag
PropertyACnc
TimingPt
System (specimen)Genital
ScaleOrd
MethodEIA
ClassMICRO
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0f
Last changed2.36

Consumer names

Herpes simplex virus (HSV) antigen, Genital specimen

Part names

Herpes simplex virus AgACncPtGenitalOrdEIAArbitrary ConcentrationPoint in time (spot)Immunoassay (EIA)

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 6423-8 | HealthAssure