LOINCActiveBoth

LOINC Code 20992-4: B. pertussis Ab Ql (Specimen)

20992-4 is a LOINC code used to identify B. pertussis Ab Ql (Specimen) 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 Bordetella pertussis Ab. It is commonly used with the system or sample type XXX.

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 Bordetella pertussis Ab. It is commonly used with the system or sample type XXX.

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

  • Bordetella pertussis Ab [Presence] in Specimen
  • Bordetella pertussis Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; B pert; B pertussis; ID; Infectious Disease; InfectiousDisease; Microbiology; Misc; Miscellaneous; Ordinal; Other; Pertussis; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Spec; To be specified in another part of the message; Unspecified; Whooping cough

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

B. pertussis Ab Ql (Specimen)Bordetella pertussis Ab [Presence] in SpecimenB pert Ab Spec QlBordetella pertussis AbMICROBordetella pertussis antibody, SpecimenPrThr

Frequently asked questions

Code details

Code20992-4
SystemLOINC
Display nameB. pertussis Ab Ql (Specimen)
DescriptionBordetella pertussis Ab
Short nameB pert Ab Spec Ql
ComponentBordetella pertussis Ab
PropertyPrThr
TimingPt
System (specimen)XXX
ScaleOrd
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0m
Last changed2.73

Consumer names

Bordetella pertussis antibody, Specimen

Part names

Bordetella pertussis AbPrThrPtXXXOrdPresence or ThresholdPoint in time (spot)

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 20992-4 | HealthAssure