LOINCActiveBoth

LOINC Code 40729-6: HSV IgM IA Ql (S)

40729-6 is a LOINC code used to identify HSV IgM 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 Herpes simplex virus Ab.IgM. 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 Herpes simplex virus Ab.IgM. 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

  • Herpes simplex virus IgM Ab [Presence] in Serum by Immunoassay
  • Herpes simplex virus Ab.IgM
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; EIA; ELFA; ELISA; Enzyme immunoassay; Herp splx; HSV; IAA; ID; Immune globulin M; Immunoglobulin M; Infectious Disease; InfectiousDisease; MEIA; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serum; SR; SUDS; UniversalLabOrders

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 IgM IA Ql (S)Herpes simplex virus IgM Ab [Presence] in Serum by ImmunoassayHSV IgM Ser Ql IAHerpes simplex virus Ab.IgMMICROHerpes simplex virus (HSV) IgM antibody, BloodPrThr

Frequently asked questions

Code details

Code40729-6
SystemLOINC
Display nameHSV IgM IA Ql (S)
DescriptionHerpes simplex virus Ab.IgM
Short nameHSV IgM Ser Ql IA
ComponentHerpes simplex virus Ab.IgM
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
MethodIA
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.15
Last changed2.73

Consumer names

Herpes simplex virus (HSV) IgM antibody, Blood

Part names

Herpes simplex virus Ab.IgMPrThrPtSerOrdIAHerpes simplex virus IgMPresence 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 40729-6 | HealthAssure