LOINCActiveBoth

LOINC Code 41007-6: HCoV OC43 Ag IF Ql (Specimen)

41007-6 is a LOINC code used to identify HCoV OC43 Ag IF Ql (Specimen) 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 Human coronavirus OC43 Ag. It is commonly used with the system or sample type XXX.

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 Human coronavirus OC43 Ag. It is commonly used with the system or sample type XXX.

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

  • Human coronavirus OC43 Ag [Presence] in Specimen by Immunofluorescence
  • Human coronavirus OC43 Ag
  • ACIF; Anticomplement Immunofluorescence; Antigen; Antigens; Corona virus; DFA; FA; Fluorescent antibody; Fluoresent; HCoV; HCoV OC43; ID; IFA; Immune fluorescence; Immunoflour; Immunofluor; Immunofluorescence; Infectious Disease; InfectiousDisease; Microbiology; Misc; Miscellaneous; Ordinal; Other; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Spec; Time Resolved Fluorescence; To be specified in another part of the message; TRF; Unspecified

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

HCoV OC43 Ag IF Ql (Specimen)Human coronavirus OC43 Ag [Presence] in Specimen by ImmunofluorescenceHCoV OC43 Ag Spec Ql IFHuman coronavirus OC43 AgMICROHuman coronavirus OC43 antigen, SpecimenPrThr

Frequently asked questions

Code details

Code41007-6
SystemLOINC
Display nameHCoV OC43 Ag IF Ql (Specimen)
DescriptionHuman coronavirus OC43 Ag
Short nameHCoV OC43 Ag Spec Ql IF
ComponentHuman coronavirus OC43 Ag
PropertyPrThr
TimingPt
System (specimen)XXX
ScaleOrd
MethodIF
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.15
Last changed2.69

Consumer names

Human coronavirus OC43 antigen, Specimen

Part names

Human coronavirus OC43 AgPrThrPtXXXOrdIFPresence or ThresholdPoint 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 41007-6 | HealthAssure