LOINCActiveObservation

LOINC Code 77984-3: Country of exposure to illness [Location]

77984-3 is a LOINC code used to identify Country of exposure to illness [Location] 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 Country of exposure to illness. It is commonly used with the system or sample type ^Patient.

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 Country of exposure to illness. It is commonly used with the system or sample type ^Patient.

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: Observation

What it does not mean

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

Key facts

  • Country of exposure to illness [Location]
  • Country of exposure to illness
  • The country in which the disease was likely acquired.
  • Country exp to illness; Exp; H+P; H+P.HX; Location; Nominal; P prime; PH; Point in time; Public Health; PublicHealth; 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

Country of exposure to illness [Location]Country exp to illnessCountry of exposure to illnessH&P.HXLocPt^Patient

Frequently asked questions

Code details

Code77984-3
SystemLOINC
Display nameCountry of exposure to illness [Location]
DescriptionCountry of exposure to illness
Short nameCountry exp to illness
ComponentCountry of exposure to illness
PropertyLoc
TimingPt
System (specimen)^Patient
ScaleNom
ClassH&P.HX
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.52
Last changed2.54

Part names

Country of exposure to illnessLocPt^PatientNomLocationPoint 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.