LOINCActiveBoth

LOINC Code 79182-2: RNA polymerase III IgG IA Qn

79182-2 is a LOINC code used to identify RNA polymerase III IgG 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 RNA polymerase III Ab.IgG. 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 RNA polymerase III Ab.IgG. 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

  • RNA polymerase III IgG Ab [Units/volume] in Serum or Plasma by Immunoassay
  • RNA polymerase III Ab.IgG
  • A semi-quantitative measurement of IgG RNA polymerase III antibodies in serum by immunoassay methods. In conjunction with other laboratory and clinical findings, the test aids in the diagnosis of systemic sclerosis (SSc, scleroderma) with an increased incidence of skin involvement and renal crisis. This term was created for, but not limited in use to, the QUANTA Lite(R) RNA Pol III ELISA.
  • 3; ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; EIA; ELFA; ELISA; Enzyme immunoassay; IAA; Immune globulin G; Immunoglobulin G; MEIA; Pl; Plasma; Plsm; Point in time; Pol III; QNT; Quan; Quant; Quantitative; Random; Ribonucleic acid; RNAp III; Serology; SerP; SerPl; SerPlas; Serum; Serum or plasma; 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

RNA polymerase III IgG IA QnRNA polymerase III IgG Ab [Units/volume] in Serum or Plasma by ImmunoassayRNAp III IgG SerPl IA-aCncRNA polymerase III Ab.IgGSERORNA Polymerase III IgG antibody, BloodACnc

Frequently asked questions

Code details

Code79182-2
SystemLOINC
Display nameRNA polymerase III IgG IA Qn
DescriptionRNA polymerase III Ab.IgG
Short nameRNAp III IgG SerPl IA-aCnc
ComponentRNA polymerase III Ab.IgG
PropertyACnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
MethodIA
ClassSERO
Example unitsELISA units
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.54
Last changed2.73

Consumer names

RNA Polymerase III IgG antibody, Blood

Part names

RNA polymerase III Ab.IgGACncPtSer/PlasQnIARNA polymerase III IgGArbitrary 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.

LOINC Code 79182-2 | HealthAssure