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 43229-4: Cryptococcus sp Ag LA (Specimen) [Titer]

Name: LOINC Code 43229-4: Cryptococcus sp Ag LA (Specimen) [Titer]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

43229-4 is a LOINC code used to identify Cryptococcus sp Ag LA (Specimen) [Titer] 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 Cryptococcus sp Ag. It is commonly used with the system or sample type XXX.

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 Cryptococcus sp Ag. It is commonly used with the system or sample type XXX.

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: LA

What it does not mean

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

Key facts

Cryptococcus sp Ag [Titer] in Specimen by Latex agglutination
Cryptococcus sp Ag
Antigen; Antigens; Crypt; Crypto; Cryptococcal; Cryptococcosis; Cryptococcosus; Dilution factor; Dilution Factor (Titer); ID; Infectious Disease; InfectiousDisease; LAT; Latex agglutination; Microbiology; Misc; Miscellaneous; Other; Point in time; Random; SmQn; Spec; species; spp; Titer; Titered; Titre; To be specified in another part of the message; Ttr; Unspecified

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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Cryptococcus sp Ag LA (Specimen) [Titer] (43229-4)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Cryptococcus sp Ag LA (Specimen) [Titer]Cryptococcus sp Ag [Titer] in Specimen by Latex agglutinationCryptoc Ag Titr Spec LACryptococcus sp AgMICROCryptococcus sp antigen, SpecimenTitr

Frequently asked questions

Code details

Code43229-4

SystemLOINC

Display nameCryptococcus sp Ag LA (Specimen) [Titer]

DescriptionCryptococcus sp Ag

Short nameCryptoc Ag Titr Spec LA

ComponentCryptococcus sp Ag

PropertyTitr

TimingPt

System (specimen)XXX

ScaleSemiQn

MethodLA

ClassMICRO

Example unitstiter

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.17

Last changed2.75

Consumer names

Cryptococcus sp antigen, Specimen

Part names

Cryptococcus sp AgTitrPtXXXSemiQnLATiterPoint in time (spot)Latex agglutination

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.