LOINCActiveBoth

LOINC Code 16898-9: G. lamblia 65 Ag Ql (Stl)

16898-9 is a LOINC code used to identify G. lamblia 65 Ag 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 Giardia lamblia 65 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 Giardia lamblia 65 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

What it does not mean

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

Key facts

  • Giardia lamblia 65 Ag [Presence] in Stool
  • Giardia lamblia 65 Ag
  • Antigen; Antigens; Beaver fever; Bowel movement; Faecal; Faeces; Fecal; Feces; G duodenalis; G intestinalis; G lamblia; G lamblia65; Giardiasis; ID; Infectious Disease; InfectiousDisease; Lamblia intestinalis; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Stl; Stool = Fecal

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

G. lamblia 65 Ag Ql (Stl)Giardia lamblia 65 Ag [Presence] in StoolG lamblia65 Ag Stl QlGiardia lamblia 65 AgMICROGiardia lamblia 65 antigen, StoolPrThr

Frequently asked questions

Code details

Code16898-9
SystemLOINC
Display nameG. lamblia 65 Ag Ql (Stl)
DescriptionGiardia lamblia 65 Ag
Short nameG lamblia65 Ag Stl Ql
ComponentGiardia lamblia 65 Ag
PropertyPrThr
TimingPt
System (specimen)Stool
ScaleOrd
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.73

Consumer names

Giardia lamblia 65 antigen, Stool

Part names

Giardia lamblia 65 AgPrThrPtStoolOrdPresence or ThresholdPoint in time (spot)

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 16898-9 | HealthAssure