LOINCActiveBoth

LOINC Code 10855-5: Ova and parasites identified LM Nom (Duod fld/Gast fld)

10855-5 is a LOINC code used to identify Ova and parasites identified LM Nom (Duod fld/Gast fld) 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 Ova & parasites. It is commonly used with the system or sample type Duod fld/Gast fld.

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 Ova & parasites. It is commonly used with the system or sample type Duod fld/Gast fld.

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: Microscopy.light

What it does not mean

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

Key facts

  • Ova and parasites identified in Duodenal fluid or Gastric fluid by Light microscopy
  • Ova & parasites
  • Dudf; Duod or Gastric fl; Duodenal fluid; GAST; Gastric contents; Gastric fluid; ID; Identity or presence; Infectious Disease; InfectiousDisease; LM; Micro; Microbiology; Micros; Microscopic; Nominal; O&P; O+P; Ova and parasite; Ovum; Parasite; Point in time; Random

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

Ova and parasites identified LM Nom (Duod fld/Gast fld)Ova and parasites identified in Duodenal fluid or Gastric fluid by Light microscopyO+P Duod or Gastric fl MicroOva & parasitesMICROOva and Parasites test, Stomach or Duodenal fluidPrid

Frequently asked questions

Code details

Code10855-5
SystemLOINC
Display nameOva and parasites identified LM Nom (Duod fld/Gast fld)
DescriptionOva & parasites
Short nameO+P Duod or Gastric fl Micro
ComponentOva & parasites
PropertyPrid
TimingPt
System (specimen)Duod fld/Gast fld
ScaleNom
MethodMicroscopy.light
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0j-a
Last changed2.78

Consumer names

Ova and Parasites test, Stomach or Duodenal fluid

Part names

Ova & parasitesPridPtDuod fld/Gast fldNomMicroscopy.lightOva and parasitesPresence or IdentityPoint in time (spot)Duodenal fluid or Gastric fluidLight microscopy

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.