LOINCActiveBoth

LOINC Code 51654-2: HDV Ab Ql (Body fld)

51654-2 is a LOINC code used to identify HDV Ab Ql (Body fld) 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 Hepatitis D virus Ab. It is commonly used with the system or sample type Body fld.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Hepatitis D virus Ab. It is commonly used with the system or sample type Body fld.

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

  • Hepatitis D virus Ab [Presence] in Body fluid
  • Hepatitis D virus Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Delta hepatitis; Dextro; Fl; Fld; FLU; Fluid; HDV; HDVAB; Hep; Hep D; Hep Delta; Hepatis; Hepatit; Hepatitis delta virus; ID; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen

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

HDV Ab Ql (Body fld)Hepatitis D virus Ab [Presence] in Body fluidHDV Ab Fld QlHepatitis D virus AbMICROHDV antibody, Body fluidPrThr

Frequently asked questions

Code details

Code51654-2
SystemLOINC
Display nameHDV Ab Ql (Body fld)
DescriptionHepatitis D virus Ab
Short nameHDV Ab Fld Ql
ComponentHepatitis D virus Ab
PropertyPrThr
TimingPt
System (specimen)Body fld
ScaleOrd
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.24
Last changed2.56

Consumer names

HDV antibody, Body fluid

Part names

Hepatitis D virus AbPrThrPtBody fldOrdPresence or ThresholdPoint in time (spot)Body fluid

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 51654-2 | HealthAssure