FHIR to OMOP FHIR IG
1.0.0 - INFORMATIVE 1 International flag

FHIR to OMOP FHIR IG, published by HL7 International / Biomedical Research and Regulation. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-omop-ig/ and changes regularly. See the Directory of published versions

Logical Model: Visit Occurrence OMOP Table

Official URL: http://hl7.org/fhir/uv/omop/StructureDefinition/VisitOccurrence Version: 1.0.0
Standards status: Informative Active as of 2026-02-12 Maturity Level: 1 Computable Name: VisitOccurrence

This table contains Events where Persons engage with the healthcare system for a duration of time. They are often also called "Encounters". Visits are defined by a configuration of circumstances under which they occur, such as (i) whether the patient comes to a healthcare institution, the other way around, or the interaction is remote, (ii) whether and what kind of trained medical staff is delivering the service during the Visit, and (iii) whether the Visit is transient or for a longer period involving a stay in bed.

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Profile Content

Description Differentials, Snapshots, and other representations.

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. VisitOccurrence 0..* Base Visit Occurrence OMOP Table
Instances of this logical model can be the target of a Reference
... visit_occurrence_id 1..1 integer Visit Occurrence Identifier
... person_id 1..1 Reference(Person OMOP Table) Person
... visit_concept_id 1..1 code Visit
... visit_start_datetime 0..1 dateTime Start Datetime
... visit_end_date 1..1 date End Date
... visit_end_datetime 0..1 dateTime End Datetime
... visit_type_concept_id 1..1 code Visit Type
... provider_id 0..1 Reference(Provider OMOP Table) Provider
... care_site_id 0..1 Reference(CareSite OMOP Table) Care Site
... visit_source_value 0..1 string Visit Source Value
... visit_source_concept_id 0..1 code Visit Source Concept
... admitted_from_concept_id 0..1 code Admitted From Concept
... admitted_from_source_value 0..1 string Admitted From Source Value
... discharged_to_concept_id 0..1 code Discharged To Concept
... discharged_to_source_value 0..1 string Discharged To Source Value
... preceding_visit_occurrence_id 0..1 Reference(Visit Occurrence OMOP Table) Preceding Visit Occurrence

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. VisitOccurrence 0..* Base Visit Occurrence OMOP Table
Instances of this logical model can be the target of a Reference
... visit_occurrence_id 1..1 integer Visit Occurrence Identifier
... person_id 1..1 Reference(Person OMOP Table) Person
... visit_concept_id 1..1 code Visit
... visit_start_datetime 0..1 dateTime Start Datetime
... visit_end_date 1..1 date End Date
... visit_end_datetime 0..1 dateTime End Datetime
... visit_type_concept_id 1..1 code Visit Type
... provider_id 0..1 Reference(Provider OMOP Table) Provider
... care_site_id 0..1 Reference(CareSite OMOP Table) Care Site
... visit_source_value 0..1 string Visit Source Value
... visit_source_concept_id 0..1 code Visit Source Concept
... admitted_from_concept_id 0..1 code Admitted From Concept
... admitted_from_source_value 0..1 string Admitted From Source Value
... discharged_to_concept_id 0..1 code Discharged To Concept
... discharged_to_source_value 0..1 string Discharged To Source Value
... preceding_visit_occurrence_id 0..1 Reference(Visit Occurrence OMOP Table) Preceding Visit Occurrence

doco Documentation for this format

Differential View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. VisitOccurrence 0..* Base Visit Occurrence OMOP Table
Instances of this logical model can be the target of a Reference
... visit_occurrence_id 1..1 integer Visit Occurrence Identifier
... person_id 1..1 Reference(Person OMOP Table) Person
... visit_concept_id 1..1 code Visit
... visit_start_datetime 0..1 dateTime Start Datetime
... visit_end_date 1..1 date End Date
... visit_end_datetime 0..1 dateTime End Datetime
... visit_type_concept_id 1..1 code Visit Type
... provider_id 0..1 Reference(Provider OMOP Table) Provider
... care_site_id 0..1 Reference(CareSite OMOP Table) Care Site
... visit_source_value 0..1 string Visit Source Value
... visit_source_concept_id 0..1 code Visit Source Concept
... admitted_from_concept_id 0..1 code Admitted From Concept
... admitted_from_source_value 0..1 string Admitted From Source Value
... discharged_to_concept_id 0..1 code Discharged To Concept
... discharged_to_source_value 0..1 string Discharged To Source Value
... preceding_visit_occurrence_id 0..1 Reference(Visit Occurrence OMOP Table) Preceding Visit Occurrence

doco Documentation for this format

Snapshot ViewView

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. VisitOccurrence 0..* Base Visit Occurrence OMOP Table
Instances of this logical model can be the target of a Reference
... visit_occurrence_id 1..1 integer Visit Occurrence Identifier
... person_id 1..1 Reference(Person OMOP Table) Person
... visit_concept_id 1..1 code Visit
... visit_start_datetime 0..1 dateTime Start Datetime
... visit_end_date 1..1 date End Date
... visit_end_datetime 0..1 dateTime End Datetime
... visit_type_concept_id 1..1 code Visit Type
... provider_id 0..1 Reference(Provider OMOP Table) Provider
... care_site_id 0..1 Reference(CareSite OMOP Table) Care Site
... visit_source_value 0..1 string Visit Source Value
... visit_source_concept_id 0..1 code Visit Source Concept
... admitted_from_concept_id 0..1 code Admitted From Concept
... admitted_from_source_value 0..1 string Admitted From Source Value
... discharged_to_concept_id 0..1 code Discharged To Concept
... discharged_to_source_value 0..1 string Discharged To Source Value
... preceding_visit_occurrence_id 0..1 Reference(Visit Occurrence OMOP Table) Preceding Visit Occurrence

doco Documentation for this format

 

Other representations of profile: CSV, Excel