What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 91814-4: Bordetella sp Ag IF Ql (Upper resp)

Name: LOINC Code 91814-4: Bordetella sp Ag IF Ql (Upper resp)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:21.442Z

91814-4 is a LOINC code used to identify Bordetella sp Ag IF Ql (Upper resp) 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 sp Ag. It is commonly used with the system or sample type Respiratory system specimen.upper.

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 sp Ag. It is commonly used with the system or sample type Respiratory system specimen.upper.

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
Method: IF

What it does not mean

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

Key facts

Bordetella sp Ag [Presence] in Upper respiratory specimen by Immunofluorescence
Bordetella sp Ag
ACIF; Anticomplement Immunofluorescence; Antigen; Antigens; Breathing; DFA; FA; Fluorescent antibody; Fluoresent; IFA; Immune fluorescence; Immunoflour; Immunofluor; Immunofluorescence; Lungs; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; RS; Screen; Spec; species; spp; Time Resolved Fluorescence; TRF; Up; Upper resp

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

Bordetella sp Ag IF Ql (Upper resp)Bordetella sp Ag [Presence] in Upper respiratory specimen by ImmunofluorescenceBordetella Ag Upper resp Ql IFBordetella sp AgMICROBordetella sp antigen, Upper respiratoryPrThr

Frequently asked questions

Code details

Code91814-4

SystemLOINC

Display nameBordetella sp Ag IF Ql (Upper resp)

DescriptionBordetella sp Ag

Short nameBordetella Ag Upper resp Ql IF

ComponentBordetella sp Ag

PropertyPrThr

TimingPt

System (specimen)Respiratory system specimen.upper

ScaleOrd

MethodIF

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.66

Last changed2.77

Consumer names

Bordetella sp antigen, Upper respiratory

Part names

Bordetella sp AgPrThrPtRespiratory system specimen.upperOrdIFPresence or ThresholdPoint in time (spot)Upper respiratory specimenImmunofluorescence (IF)

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.