description: Provides guidance as to which `DiagnosticReport` attributes should be present and considerations as to how each attribute should be valued in [`DiagnosticReport-update`](3-6-3-DiagnosticReport-update.html) events.\n\nThe `DiagnosticReport` in [`DiagnosticReport-update`](3-6-3-DiagnosticReport-update.html) events serves two purposes.  First its presence enables verification that the content in the [`DiagnosticReport-update`](3-6-3-DiagnosticReport-update.html) event's Bundle attribute belongs to the DiagnosticReport which is the current anchor context.  Additionally, attributes of the DiagnosticReport which is the current anchor context may be updated in a [`DiagnosticReport-update`](3-6-3-DiagnosticReport-update.html) event.\n\nHence, the only required attributes of `DiagnosticReport` in the [`DiagnosticReport-update`](3-6-3-DiagnosticReport-update.html) event is the resources' `id`, as well as its `status` since this attribute is required by FHIR.  Other attributes of the `DiagnosticReport` MAY be valued if they have changed from their original values or no value had been provided in the [`DiagnosticReport-open`](3-6-1-DiagnosticReport-open.html) event.\n
package_name: hl7.fhir.uv.fhircast
derivation: constraint
name: FHIRcastDiagnosticReportUpdate
type: DiagnosticReport
elements:
  id: {short: A logical id of the resource SHALL be provided., index: 0}
  status: {short: 'Status of the DiagnosticReport, note this may not be known and hence have a value of `unknown`; however, is included since it is required by FHIR', index: 1}
package_version: 3.0.0-ballot
class: profile
kind: resource
url: http://hl7.org/fhir/uv/fhircast/StructureDefinition/fhircast-diagnostic-report-update
base: http://hl7.org/fhir/StructureDefinition/DiagnosticReport
version: 3.0.0-ballot
required: [id]