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This is the API documentation for the OpenMRS FHIR Module ,Encounter Resource.
Encounter Resource represents an interaction between a patient and healthcare provider(s) for the purpose of providing healthcare service(s) or assessing the health status of a patient. For more information please refer http://hl7-fhir.github.io/encounter.html
Shown below is an example of how an OpenMRS Encounter objects would map to FHIR Encounter resource, as proposed by Grahame Grieve.
The left side of the relationship indicates the OpenMRS attribute, while the right indicated the FHIR resource mapping.
Encounter
Integer uuid :: n/a - goes in the URL e.g. [base]/Encounter/[encounterId] Date encounterDatetime :: Encounter.period Patient patient :: Encounter.subject Integer patientId :: not mapped Set<EncounterProvider> encounterProviders :: Encounter.participant Location location :: Encounter.location EncounterType encounterType : not mapped Set<Order> orders :: not mapped Visit visit :: Encounter.partOf
Shown below is a sample FHIR Encounter Resource.
FHIR Encounter Resource
{
resourceType: "Encounter",
status: "finished",
class: "inpatient",
subject: {
reference: "Patient/dd738d54-1691-11df-97a5-7038c432aabf",
display: "Daisylene Ekeno(Identifier:1865TU-8)"
},
participant: [1]
0: {
individual: {
reference: "Practitioner/bf218490-1691-11df-97a5-7038c432aabf",
display: "Super User(Identifier:admin)"
}
}
period: {
start: "2006-02-07T00:00:00",
end: "2006-02-07T00:00:00"
},
location: [1]
0: {
location: {
reference: "Location/8d6c993e-c2cc-11de-8d13-0010c6dffd0f",
display: "Inpatient Ward"
},
period: {
start: "2006-02-07T00:00:00",
end: "2006-02-07T00:00:00"
}
}
}
Available RESTful web services for the Encounter Resource supported by the API
GET Requests
| Search | |
|---|---|
| /ws/fhir/Encounter/{id} | This request will fetch the Encounter for the given unique uuid. Here id represents, the logical resource id associated with the resource. |
| /ws/fhir/Encounter?_id={id} | This request will fetch all Encounter using the given uuid value. This will return a List of Encounter as the response.Here _id parameter represents, the logical resource id associated with the resource. |
| /ws/fhir/Encounter?patient.identifier={identifier} | This request will fetch Encounters per patient, identified by the given patient's identifier. This will return a List of Encounter ( 0..* Encounter ) as the response. Here the identifier parameter represents, patient identifier. |
| /ws/fhir/Encounter?patient.identifier={identifier}&part-of={uuid} | Search encounters belongs to a patient specified in given identifier. If part-of= none then it will return all visits and encounters which doesn't have parent visit. If part-of specified it will return encounters of patient with matching visit uuid value specified in part-of field. |
| /ws/fhir/Encounter?_id={id}&part-of={uuid} | Search encounters belongs to a of given id. If part-of= none then it will return only encounter. Otherwise it will return encounter both match id and the visit uuid. |
POST Requests
| Operations | |
|---|---|
/ws/fhir/Encounter/$everything With body : <Parameters xmlns="http://hl7.org/fhir"/> | This request will return bundle resource with resources that associate with encounter which associate with given encounter Id |
| /ws/fhir/Encounter | If the request body has a partOf attribute, an OpenMRS Encounter will be created with associated to the given Visit. If the partOf attribute is not present , we will close all active Visits for that patient and create an new OpenMRS Visit. |
DELETE Requests
| Operations | |
|---|---|
| /ws/fhir/Encounter/{id} | This request will retire the Encounter with the given uuid. If the resource does not exist, a 404 is returned. If the OpenMRS API refuses to retire the encounter, the status code 405 is returned. |
OpenMRS specific constrains
- To implement FHIR Encounter we have used both OpenMRS Visit and OpenMRS Encounter resources. For every Encounter an OpenMRS Visit resource will be created. In a case where the patient is trasfered between different sections, a new OpenMRS Encounter will be created and that will be attached to the relevant OpenMRS Visit.
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