LOINCActiveBoth

LOINC Code 23828-7: B. pertussis filamentous hemagglutinin IgG Qn (S)

23828-7 is a LOINC code used to identify B. pertussis filamentous hemagglutinin 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 Bordetella pertussis.filamentous hemagglutinin 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 Bordetella pertussis.filamentous hemagglutinin 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

  • Bordetella pertussis filamentous hemagglutinin IgG Ab [Units/volume] in Serum
  • Bordetella pertussis.filamentous hemagglutinin Ab.IgG
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; B pert; B pert FHA; B pertussis; FHA; Filament; HA; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; Microbiology; Pertussis; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; 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 filamentous hemagglutinin IgG Qn (S)Bordetella pertussis filamentous hemagglutinin IgG Ab [Units/volume] in SerumB pert FHA IgG Ser-aCncBordetella pertussis.filamentous hemagglutinin Ab.IgGMICROBordetella pertussis.filamentous hemagglutinin IgG antibody, BloodACnc

Frequently asked questions

Code details

Code23828-7
SystemLOINC
Display nameB. pertussis filamentous hemagglutinin IgG Qn (S)
DescriptionBordetella pertussis.filamentous hemagglutinin Ab.IgG
Short nameB pert FHA IgG Ser-aCnc
ComponentBordetella pertussis.filamentous hemagglutinin Ab.IgG
PropertyACnc
TimingPt
System (specimen)Ser
ScaleQn
ClassMICRO
Example unitsarb U/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Bordetella pertussis.filamentous hemagglutinin IgG antibody, Blood

Part names

Bordetella pertussis.filamentous hemagglutinin Ab.IgGACncPtSerQnBordetella pertussis filamentous hemagglutinin 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.