LOINCActiveBoth

LOINC Code 5840-4: Enterovirus identified IF Nom (Isol)

5840-4 is a LOINC code used to identify Enterovirus identified IF Nom (Isol) 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 Enterovirus. It is commonly used with the system or sample type Isolate.

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 Enterovirus. It is commonly used with the system or sample type Isolate.

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: IF

What it does not mean

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

Key facts

  • Enterovirus identified in Isolate by Immunofluorescence
  • Enterovirus
  • ACIF; Anticomplement Immunofluorescence; Entero virus; EV; FA; Fluorescent antibody; Fluoresent; ID; Identity or presence; IFA; Immune fluorescence; Immunoflour; Immunofluor; Immunofluorescence; Infectious Disease; InfectiousDisease; Islt; Isol; Microbiology; Nominal; Point in time; Random; Time Resolved Fluorescence; TRF

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

Enterovirus identified IF Nom (Isol)Enterovirus identified in Isolate by ImmunofluorescenceEV Islt IFEnterovirusMICROEnterovirus testPrid

Frequently asked questions

Code details

Code5840-4
SystemLOINC
Display nameEnterovirus identified IF Nom (Isol)
DescriptionEnterovirus
Short nameEV Islt IF
ComponentEnterovirus
PropertyPrid
TimingPt
System (specimen)Isolate
ScaleNom
MethodIF
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.79

Consumer names

Enterovirus test

Part names

EnterovirusPridPtIsolateNomIFPresence or IdentityPoint in time (spot)Immunofluorescence (IF)

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 5840-4 | HealthAssure