LOINCActiveBoth

LOINC Code 33697-4: B. anthracis Ag IF Ql (Isol)

33697-4 is a LOINC code used to identify B. anthracis Ag IF Ql (Isol) 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 Bacillus anthracis Ag. It is commonly used with the system or sample type Isolate.

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 Bacillus anthracis Ag. It is commonly used with the system or sample type Isolate.

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

  • Bacillus anthracis Ag [Presence] in Isolate by Immunofluorescence
  • Bacillus anthracis Ag
  • ACIF; Anthrax; Anticomplement Immunofluorescence; Antigen; Antigens; B anthracis; Charbon; DFA; FA; Fluorescent antibody; Fluoresent; ID; IFA; Immune fluorescence; Immunoflour; Immunofluor; Immunofluorescence; Infectious Disease; InfectiousDisease; Islt; Isol; Malignant carbuncle; Malignant pustule; Microbiology; Milzbrand; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Splenic fever; Time Resolved Fluorescence; TRF; Woolsorters disease

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. anthracis Ag IF Ql (Isol)Bacillus anthracis Ag [Presence] in Isolate by ImmunofluorescenceB anthracis Ag Islt Ql IFBacillus anthracis AgMICROBacillus anthracis antigenPrThr

Frequently asked questions

Code details

Code33697-4
SystemLOINC
Display nameB. anthracis Ag IF Ql (Isol)
DescriptionBacillus anthracis Ag
Short nameB anthracis Ag Islt Ql IF
ComponentBacillus anthracis Ag
PropertyPrThr
TimingPt
System (specimen)Isolate
ScaleOrd
MethodIF
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.65

Consumer names

Bacillus anthracis antigen

Part names

Bacillus anthracis AgPrThrPtIsolateOrdIFPresence or ThresholdPoint in time (spot)Immunofluorescence (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.

LOINC Code 33697-4 | HealthAssure