LOINCActiveBoth

LOINC Code 38403-2: Cyclospora sp Ag IA Ql (Stl)

38403-2 is a LOINC code used to identify Cyclospora sp Ag IA Ql (Stl) 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 Cyclospora sp Ag. It is commonly used with the system or sample type Stool.

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 Cyclospora sp Ag. It is commonly used with the system or sample type Stool.

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

What it does not mean

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

Key facts

  • Cyclospora sp Ag [Presence] in Stool by Immunoassay
  • Cyclospora sp Ag
  • Antigen; Antigens; Bowel movement; Cyclo; Cyclosporiasis; EIA; ELFA; ELISA; Enzyme immunoassay; Faecal; Faeces; Fecal; Feces; IAA; ID; Infectious Disease; InfectiousDisease; MEIA; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; species; spp; Stl; Stool = Fecal; 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

Cyclospora sp Ag IA Ql (Stl)Cyclospora sp Ag [Presence] in Stool by ImmunoassayCyclospora Ag Stl Ql IACyclospora sp AgMICROCyclospora sp antigen, StoolPrThr

Frequently asked questions

Code details

Code38403-2
SystemLOINC
Display nameCyclospora sp Ag IA Ql (Stl)
DescriptionCyclospora sp Ag
Short nameCyclospora Ag Stl Ql IA
ComponentCyclospora sp Ag
PropertyPrThr
TimingPt
System (specimen)Stool
ScaleOrd
MethodIA
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.14
Last changed2.56

Consumer names

Cyclospora sp antigen, Stool

Part names

Cyclospora sp AgPrThrPtStoolOrdIAPresence or ThresholdPoint in time (spot)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.

LOINC Code 38403-2 | HealthAssure