What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 16716-3: CMV IgG spec 2 IA Qn

Name: LOINC Code 16716-3: CMV IgG spec 2 IA Qn
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:26.380Z

16716-3 is a LOINC code used to identify CMV IgG spec 2 IA Qn 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 Cytomegalovirus Ab.IgG^2nd specimen. 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 Cytomegalovirus Ab.IgG^2nd specimen. 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: Both
Method: IA

What it does not mean

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

Key facts

Cytomegalovirus IgG Ab [Units/volume] in Serum or Plasma by Immunoassay --2nd specimen
Cytomegalovirus Ab.IgG^2nd specimen
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; CMV; Convalescent; Cytomegalo virus; Cytomgal; EIA; ELFA; ELISA; Enzyme immunoassay; HHV-5; Human Herpesvirus-5; IAA; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; MEIA; Microbiology; Pl; Plasma; Plsm; Point in time; Post immunization; QNT; Quan; Quant; Quantitative; Random; Second; SerP; SerPl; SerPlas; Serum; Serum or plasma; sp2; Spec; SR; SUDS

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

CMV IgG spec 2 IA QnCytomegalovirus IgG Ab [Units/volume] in Serum or Plasma by Immunoassay --2nd specimenCMV IgG sp2 SerPl IA-aCncCytomegalovirus Ab.IgG^2nd specimenMICROCytomegalovirus (CMV) IgG antibody specimen 2, BloodACnc

Frequently asked questions

Code details

Code16716-3

SystemLOINC

Display nameCMV IgG spec 2 IA Qn

DescriptionCytomegalovirus Ab.IgG^2nd specimen

Short nameCMV IgG sp2 SerPl IA-aCnc

ComponentCytomegalovirus Ab.IgG^2nd specimen

PropertyACnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

MethodIA

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0l

Last changed2.73

Consumer names

Cytomegalovirus (CMV) IgG antibody specimen 2, Blood

Part names

Cytomegalovirus Ab.IgG^2nd specimenACncPtSer/PlasQnIAArbitrary ConcentrationPoint in time (spot)Serum or PlasmaImmunoassay

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.