LOINCActiveObservation

LOINC Code 32793-2: Parvovirus B19 IgG 1st specimen/2nd specimen IA (S) [Ratio]

32793-2 is a LOINC code used to identify Parvovirus B19 IgG 1st specimen/2nd specimen IA (S) [Ratio] 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 Parvovirus B19 Ab.IgG^1st specimen/2nd specimen. 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 Parvovirus B19 Ab.IgG^1st specimen/2nd specimen. 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: Observation
  • Method: IA

What it does not mean

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

Key facts

Parvovirus B19 IgG Ab [Ratio] in Serum by Immunoassay --1st specimen/2nd specimen
Parvovirus B19 Ab.IgG^1st specimen/2nd specimen
12; ABS; Aby; Acute specimen; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; B19 virus; B19V; Convalescent; EIA; ELFA; ELISA; Enzyme immunoassay; Fifth Disease; First; IAA; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; MEIA; Microbiology; Parvo; Parvo virus; Parvov; Point in time; Post immunization; Pre immunization; QNT; Quan; Quant; Quantitative; Random; Ratios; Rto; Second; Serum; sp1; 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

Parvovirus B19 IgG 1st specimen/2nd specimen IA (S) [Ratio]Parvovirus B19 IgG Ab [Ratio] in Serum by Immunoassay --1st specimen/2nd specimenB19V IgG 1:2 Ser IA-RtoParvovirus B19 Ab.IgG^1st specimen/2nd specimenMICROParvovirus B19 IgG antibody 1st specimen/2nd specimen, BloodRatio

Frequently asked questions

Code details

Code32793-2
SystemLOINC
Display nameParvovirus B19 IgG 1st specimen/2nd specimen IA (S) [Ratio]
DescriptionParvovirus B19 Ab.IgG^1st specimen/2nd specimen
Short nameB19V IgG 1:2 Ser IA-Rto
ComponentParvovirus B19 Ab.IgG^1st specimen/2nd specimen
PropertyRatio
TimingPt
System (specimen)Ser
ScaleQn
MethodIA
ClassMICRO
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.56

Consumer names

Parvovirus B19 IgG antibody 1st specimen/2nd specimen, Blood

Part names

Parvovirus B19 Ab.IgG^1st specimen/2nd specimenRatioPtSerQnIAPoint 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.