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LOINC Code 43019-9: H. capsulatum Ab Ql (Pleur fld)

43019-9 is a LOINC code used to identify H. capsulatum Ab Ql (Pleur 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 Histoplasma capsulatum Ab. It is commonly used with the system or sample type Plr 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 Histoplasma capsulatum Ab. It is commonly used with the system or sample type Plr 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

  • Histoplasma capsulatum Ab [Presence] in Pleural fluid
  • Histoplasma capsulatum Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; H capsul; H capsulatum; H farciminosum; Histo; Histopl; Histoplasma farciminosum; Histoplasmos; Histoplasmosis; ID; Infectious Disease; InfectiousDisease; Lung; Microbiology; Ordinal; Pleural; Pleural fluid; Point in time; PR; Pulmonary; Pulmonology; Ql; Qual; Qualitative; Random; Respiratory; Screen; thoracentesis fluid

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

H. capsulatum Ab Ql (Pleur fld)Histoplasma capsulatum Ab [Presence] in Pleural fluidH capsul Ab Plr QlHistoplasma capsulatum AbMICROHistoplasma capsulatum antibody, Pleural fluidPrThr

Frequently asked questions

Code details

Code43019-9
SystemLOINC
Display nameH. capsulatum Ab Ql (Pleur fld)
DescriptionHistoplasma capsulatum Ab
Short nameH capsul Ab Plr Ql
ComponentHistoplasma capsulatum Ab
PropertyPrThr
TimingPt
System (specimen)Plr fld
ScaleOrd
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.16
Last changed2.56

Consumer names

Histoplasma capsulatum antibody, Pleural fluid

Part names

Histoplasma capsulatum AbPrThrPtPlr fldOrdPresence or ThresholdPoint in time (spot)Pleural 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 43019-9 | HealthAssure