// Profile: SDHRObservationVapingStatus
// Parent: https://standards.digital.health.nz/fhir/StructureDefinition/nzps-observation-vaping-status
// Description: "This profile constrains the Observation resource to represent Vaping use"
// * ^version = "0.1.0"
// * ^status = #active

// * identifier ^slicing.discriminator.type = #value
// * identifier ^slicing.discriminator.path = "system"
// * identifier ^slicing.rules = #open
// * identifier ^slicing.description = "Health Record Key - unique persistent identifier for this clinical FHIR resource"

// * identifier contains HealthRecordKey 0..1 MS

// * identifier[HealthRecordKey].system = "https://standards.digital.health.nz/ns/health-record-key-id" (exactly)
// * identifier[HealthRecordKey].use = #offical (exactly)
// * identifier[HealthRecordKey].use ^short = "fixed to official"
// * identifier[HealthRecordKey] ^short = "Health Record Key - unique persistent identifier for this clinical FHIR resource"
// * identifier[HealthRecordKey] ^definition = "This identifier should be created for each resource at the time of sending to the central repository and persisted by source systems against their view of the information. This allows a unique identifier for updates and tracking of the resource independent of the resource id and between systems"

// * subject.reference 1..1 
// * subject.reference ^short = "Must be an absolute URL reference to the patient on the NHI system. E.g. https://api.hip.digital.health.nz/fhir/Patient/ZZZ0008"
// * subject.type = "Patient"

// * performer 1..1
// * performer only Reference(Practitioner)
// * performer.reference 1..1
// * performer.reference ^short = "Must be an absolute URL reference to the practitioner on the HPI system E.g. https://api.hip.digital.health.nz/fhir/Practitioner/99ZZZZ"