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.

LOINCBoth

LOINC Code 23748-7: Histoplasma sp Ab Immune diff Ql (S)

Name: LOINC Code 23748-7: Histoplasma sp Ab Immune diff Ql (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:12.417Z

23748-7 is a LOINC code used to identify Histoplasma sp Ab Immune diff Ql (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 Histoplasma sp Ab. 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 Histoplasma sp Ab. 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: DEPRECATED
Order vs observation: Both
Method: Immune diffusion

What it does not mean

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

Key facts

Deprecated Histoplasma capsulatum Ab [Presence] in Serum by Immune diffusion (ID)
Histoplasma sp Ab
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Histo; Histopl; Histoplasmos; Histoplasmosis; ID; Imm; Immunodiff; Immunodiffusion; Imun; Imune; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen; Serum; species; spp; SR

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

Histoplasma sp Ab Immune diff Ql (S)Deprecated Histoplasma capsulatum Ab [Presence] in Serum by Immune diffusion (ID)Deprecated Histoplasma Ab Ser Ql IDHistoplasma sp AbMICROHistoplasma sp antibody, BloodACnc

Frequently asked questions

Code details

Code23748-7

SystemLOINC

Display nameHistoplasma sp Ab Immune diff Ql (S)

DescriptionHistoplasma sp Ab

Short nameDeprecated Histoplasma Ab Ser Ql ID

ComponentHistoplasma sp Ab

PropertyACnc

TimingPt

System (specimen)Ser

ScaleOrd

MethodImmune diffusion

ClassMICRO

StatusDEPRECATED

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0n

Last changed2.36

Consumer names

Histoplasma sp antibody, Blood

Part names

Histoplasma sp AbACncPtSerOrdImmune diffusionArbitrary ConcentrationPoint in time (spot)SerumImmune diffusion (ID)

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.