LOINCActiveBoth

LOINC Code 31424-5: Histone H2a+H2b Ab Ql (S)

31424-5 is a LOINC code used to identify Histone H2a+H2b Ab 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 Histone H2a+H2b Ab. 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 Histone H2a+H2b Ab. 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

  • Histone H2a+H2b Ab [Presence] in Serum
  • Histone H2a+H2b Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Drug induced systemic lupus erythematosus; H2a-H2b; Histone DNA complex ab IgG; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; 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

Histone H2a+H2b Ab Ql (S)Histone H2a+H2b Ab [Presence] in SerumHistone H2a+H2b Ab Ser QlHistone H2a+H2b AbSEROHistone H2a+H2b antibody, BloodPrThr

Frequently asked questions

Code details

Code31424-5
SystemLOINC
Display nameHistone H2a+H2b Ab Ql (S)
DescriptionHistone H2a+H2b Ab
Short nameHistone H2a+H2b Ab Ser Ql
ComponentHistone H2a+H2b Ab
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
ClassSERO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.07
Last changed2.56

Consumer names

Histone H2a+H2b antibody, Blood

Part names

Histone H2a+H2b AbPrThrPtSerOrdPresence or ThresholdPoint 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 31424-5 | HealthAssure