LOINCActiveBoth

LOINC Code 14231-5: H2a-H2b DNA IgG Qn (S)

14231-5 is a LOINC code used to identify H2a-H2b DNA IgG Qn (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 H2a-H2b DNA Ab.IgG. 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 H2a-H2b DNA Ab.IgG. 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

What it does not mean

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

Key facts

  • H2a-H2b DNA IgG Ab [Units/volume] in Serum
  • H2a-H2b DNA Ab.IgG
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Deoxyribonucleic acid; Drug induced systemic lupus erythematosus; Histone DNA complex ab IgG; Immune globulin G; Immunoglobulin G; Point in time; QNT; Quan; Quant; Quantitative; Random; Serology; Serum; 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

H2a-H2b DNA IgG Qn (S)H2a-H2b DNA IgG Ab [Units/volume] in SerumH2a-H2b DNA IgG Ser-aCncH2a-H2b DNA Ab.IgGSEROIgG antibody, BloodACnc

Frequently asked questions

Code details

Code14231-5
SystemLOINC
Display nameH2a-H2b DNA IgG Qn (S)
DescriptionH2a-H2b DNA Ab.IgG
Short nameH2a-H2b DNA IgG Ser-aCnc
ComponentH2a-H2b DNA Ab.IgG
PropertyACnc
TimingPt
System (specimen)Ser
ScaleQn
ClassSERO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0k
Last changed2.69

Consumer names

IgG antibody, Blood

Part names

H2a-H2b DNA Ab.IgGACncPtSerQnH2a-H2b DNA IgGArbitrary ConcentrationPoint in time (spot)Serum

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 14231-5 | HealthAssure