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 70911-3: Cryptococcus sp Ag IA.rapid Ql (CSF)

Name: LOINC Code 70911-3: Cryptococcus sp Ag IA.rapid Ql (CSF)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:49.466Z

70911-3 is a LOINC code used to identify Cryptococcus sp Ag IA.rapid Ql (CSF) 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 CSF.

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

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: IA.rapid

What it does not mean

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

Key facts

Cryptococcus sp Ag [Presence] in Cerebral spinal fluid by Rapid immunoassay
Cryptococcus sp Ag
Based on, but not limited to, Immuno-Mycologics (IMMY) CrAg Lateral Flow Assay test.
Antigen; Antigens; Cerebral spinal fluid; Cerebrospinal Fl; Crypt; Crypto; Cryptococcal; Cryptococcosis; Cryptococcosus; EIA; ELFA; ELISA; Enzyme immunoassay; IAA; ID; Infectious Disease; InfectiousDisease; MEIA; Microbiology; Neuro; Neurology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; species; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; spp; SUDS

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

Cryptococcus sp Ag IA.rapid Ql (CSF)Cryptococcus sp Ag [Presence] in Cerebral spinal fluid by Rapid immunoassayCryptoc Ag CSF Ql IA.rapidCryptococcus sp AgMICROCryptococcus sp antigen, Spinal fluidPrThr

Frequently asked questions

Code details

Code70911-3

SystemLOINC

Display nameCryptococcus sp Ag IA.rapid Ql (CSF)

DescriptionCryptococcus sp Ag

Short nameCryptoc Ag CSF Ql IA.rapid

ComponentCryptococcus sp Ag

PropertyPrThr

TimingPt

System (specimen)CSF

ScaleOrd

MethodIA.rapid

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.40

Last changed2.73

Consumer names

Cryptococcus sp antigen, Spinal fluid

Part names

Cryptococcus sp AgPrThrPtCSFOrdIA.rapidPresence or ThresholdPoint in time (spot)Cerebral spinal fluidRapid immunoassay

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.