It is planned to have, at least, two extensions for the Patient resource:
PSI Global Extension for PSI Client Country. In order to link one client/patient to one country(potential URI
https://standards.psi-mis.org/fhir/global/core/StructureDefinition/psi-client-country)PSI Global Extension for PSI Client Project. In order to store the relation between a client (patient) and a project during a period of time. (potential URI
https://standards.psi-mis.org/fhir/global/core/StructureDefinition/psi-project)