LOINCActiveOrder

LOINC Code 81621-5: HSV 1 and 2 IgG panel

81621-5 is a LOINC code used to identify HSV 1 and 2 IgG panel 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 1 & 2 Ab.IgG panel. It is commonly used with the system or sample type Ser/Plas.

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 1 & 2 Ab.IgG panel. It is commonly used with the system or sample type Ser/Plas.

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: Order
  • Panel type: Panel

What it does not mean

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

Key facts

  • Herpes simplex virus 1 and 2 IgG panel - Serum or Plasma
  • Herpes simplex virus 1 & 2 Ab.IgG panel
  • This panel contains terms that measure HSV Type 1 (HSV-1) and HSV Type 2 (HSV-2) IgG antibodies. HSV Type 1 generally infects the mucous membrane of the eye, mouth and mucocutaneous junctions of the face, and is also one of the most common causes of severe sporadic encephalitis in adults. HSV Type 2 (HSV-2) is usually associated with mucocutaneous genital lesions.
  • Herp splx; Herpes simplex virus type 1; Herpes simplex virus type 1+2; Herpes simplex virus type I+II; HSV; HSV 1 + 2 IgG Pnl; HSV 1+2; HSV1; HSV1+2; i; ID; II; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; Microbiology; Pan; PANEL.MICROBIOLOGY; Panl; Pl; Plasma; Plsm; Pnl; Point in time; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; 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 1 and 2 IgG panelHerpes simplex virus 1 and 2 IgG panel - Serum or PlasmaHSV 1 + 2 IgG Pnl SerPlHerpes simplex virus 1 & 2 Ab.IgG panelPANEL.MICROHerpes simplex virus (HSV) 1 and 2 IgG Panel, Blood-

Frequently asked questions

Code details

Code81621-5
SystemLOINC
Display nameHSV 1 and 2 IgG panel
DescriptionHerpes simplex virus 1 & 2 Ab.IgG panel
Short nameHSV 1 + 2 IgG Pnl SerPl
ComponentHerpes simplex virus 1 & 2 Ab.IgG panel
Property-
TimingPt
System (specimen)Ser/Plas
Scale-
ClassPANEL.MICRO
StatusACTIVE
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.56
Last changed2.56

Consumer names

Herpes simplex virus (HSV) 1 and 2 IgG Panel, Blood

Part names

Herpes simplex virus 1 & 2 Ab.IgG panel-PtSer/PlasHerpes simplex virus 1 and 2 IgG panelPoint in time (spot)Serum or Plasma

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 81621-5 | HealthAssure