CH EMS (R4)
1.9.0 - CI build

CH EMS (R4), published by IVR Interverband für Rettungswesen. This is not an authorized publication; it is the continuous build for version 1.9.0). This version is based on the current content of https://github.com/hl7ch/ch-ems/ and changes regularly. See the Directory of published versions

StructureDefinition: CHEmsServiceRequest

Definition of the service request

The official URL for this profile is:

http://fhir.ch/ig/ch-ems/StructureDefinition/ch-ems-servicerequest

Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

This structure is derived from ServiceRequest

NameFlagsCard.TypeDescription & Constraintsdoco
.. ServiceRequest 0..*ServiceRequestCH EMS ServiceRequest
... contained 0..*ResourceInline Resources for requester
... status 1..1codedraft | active | on-hold | revoked | completed | entered-in-error | unknown
... intent 1..1codeproposal | plan | directive | order | original-order | reflex-order | filler-order | instance-order | option
.... reference 1..1stringLiteral reference, Relative, internal or absolute URL
... encounter 0..1Reference(CH EMS Encounter Profile)Encounter in which the request was created
.... reference 1..1stringLiteral reference, Relative, internal or absolute URL
... requester 1..1Reference(CH EMS Organization Profile) {c}Informant organisation (IMC)
.... reference 1..1stringLiteral reference, Relative, internal or absolute URL
... insurance 0..*Reference(CH EMS Coverage Profile)Insurance coverage
.... reference 1..1stringLiteral reference, Relative, internal or absolute URL

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraintsdoco
.. ServiceRequest I0..*ServiceRequestCH EMS ServiceRequest
... id Σ0..1stringLogical id of this artifact
... meta ΣI0..1MetaMetadata about the resource
... implicitRules ?!ΣI0..1uriA set of rules under which this content was created
... language I0..1codeLanguage of the resource content
Binding: CommonLanguages (preferred)
Max Binding: AllLanguages
... text I0..1NarrativeText summary of the resource, for human interpretation
... contained 0..*ResourceInline Resources for requester
... extension I0..*ExtensionAdditional content defined by implementations
... modifierExtension ?!I0..*ExtensionExtensions that cannot be ignored
... identifier ΣI0..*IdentifierIdentifiers assigned to this order
... instantiatesCanonical ΣI0..*canonical(ActivityDefinition | PlanDefinition)Instantiates FHIR protocol or definition
... instantiatesUri ΣI0..*uriInstantiates external protocol or definition
... basedOn ΣI0..*Reference(CarePlan | ServiceRequest | MedicationRequest)What request fulfills
... replaces ΣI0..*Reference(ServiceRequest)What request replaces
... requisition ΣI0..1IdentifierComposite Request ID
... status ?!ΣI1..1codedraft | active | on-hold | revoked | completed | entered-in-error | unknown
Binding: RequestStatus (required)
... intent ?!ΣI1..1codeproposal | plan | directive | order | original-order | reflex-order | filler-order | instance-order | option
Binding: RequestIntent (required)
... category ΣI0..*CodeableConceptClassification of service
Binding: ServiceRequestCategoryCodes (example)
... priority ΣI0..1coderoutine | urgent | asap | stat
Binding: RequestPriority (required)
... doNotPerform ?!ΣI0..1booleanTrue if service/procedure should not be performed
... code ΣI0..1CodeableConceptWhat is being requested/ordered
Binding: ProcedureCodes(SNOMEDCT) (example)
... orderDetail ΣI0..*CodeableConceptAdditional order information
Binding: ServiceRequestOrderDetailsCodes (example)
... quantity[x] ΣI0..1Service amount
.... quantityQuantityQuantity
.... quantityRatioRatio
.... quantityRangeRange
... subject ΣI1..1Reference(CH EMS Patient Profile)Patient
.... id 0..1stringUnique id for inter-element referencing
.... extension I0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... reference ΣI1..1stringLiteral reference, Relative, internal or absolute URL
.... type ΣI0..1uriType the reference refers to (e.g. "Patient")
Binding: ResourceType (extensible)
.... identifier ΣI0..1IdentifierLogical reference, when literal reference is not known
.... display ΣI0..1stringText alternative for the resource
... encounter ΣI0..1Reference(CH EMS Encounter Profile)Encounter in which the request was created
.... id 0..1stringUnique id for inter-element referencing
.... extension I0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... reference ΣI1..1stringLiteral reference, Relative, internal or absolute URL
.... type ΣI0..1uriType the reference refers to (e.g. "Patient")
Binding: ResourceType (extensible)
.... identifier ΣI0..1IdentifierLogical reference, when literal reference is not known
.... display ΣI0..1stringText alternative for the resource
... occurrence[x] ΣI0..1When service should occur
.... occurrenceDateTimedateTime
.... occurrencePeriodPeriod
.... occurrenceTimingTiming
... asNeeded[x] ΣI0..1Preconditions for service
Binding: SNOMEDCTMedicationAsNeededReasonCodes (example)
.... asNeededBooleanboolean
.... asNeededCodeableConceptCodeableConcept
... authoredOn ΣI0..1dateTimeDate request signed
... requester ΣI1..1Reference(CH EMS Organization Profile) {c}Informant organisation (IMC)
.... id 0..1stringUnique id for inter-element referencing
.... extension I0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... reference ΣI1..1stringLiteral reference, Relative, internal or absolute URL
.... type ΣI0..1uriType the reference refers to (e.g. "Patient")
Binding: ResourceType (extensible)
.... identifier ΣI0..1IdentifierLogical reference, when literal reference is not known
.... display ΣI0..1stringText alternative for the resource
... performerType ΣI0..1CodeableConceptPerformer role
Binding: ParticipantRoles (example)
... performer ΣI0..*Reference(Practitioner | PractitionerRole | Organization | CareTeam | HealthcareService | Patient | Device | RelatedPerson)Requested performer
... locationCode ΣI0..*CodeableConceptRequested location
Binding: ServiceDeliveryLocationRoleType (example)
... locationReference ΣI0..*Reference(Location)Requested location
... reasonCode ΣI0..*CodeableConceptExplanation/Justification for procedure or service
Binding: ProcedureReasonCodes (example)
... reasonReference ΣI0..*Reference(Condition | Observation | DiagnosticReport | DocumentReference)Explanation/Justification for service or service
... insurance I0..*Reference(CH EMS Coverage Profile)Insurance coverage
.... id 0..1stringUnique id for inter-element referencing
.... extension I0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... reference ΣI1..1stringLiteral reference, Relative, internal or absolute URL
.... type ΣI0..1uriType the reference refers to (e.g. "Patient")
Binding: ResourceType (extensible)
.... identifier ΣI0..1IdentifierLogical reference, when literal reference is not known
.... display ΣI0..1stringText alternative for the resource
... supportingInfo I0..*Reference(Resource)Additional clinical information
... specimen ΣI0..*Reference(Specimen)Procedure Samples
... bodySite ΣI0..*CodeableConceptLocation on Body
Binding: SNOMEDCTBodyStructures (example)
... note I0..*AnnotationComments
... patientInstruction ΣI0..1stringPatient or consumer-oriented instructions
... relevantHistory I0..*Reference(Provenance)Request provenance

doco Documentation for this format

Differential View

This structure is derived from ServiceRequest

NameFlagsCard.TypeDescription & Constraintsdoco
.. ServiceRequest 0..*ServiceRequestCH EMS ServiceRequest
... contained 0..*ResourceInline Resources for requester
... status 1..1codedraft | active | on-hold | revoked | completed | entered-in-error | unknown
... intent 1..1codeproposal | plan | directive | order | original-order | reflex-order | filler-order | instance-order | option
.... reference 1..1stringLiteral reference, Relative, internal or absolute URL
... encounter 0..1Reference(CH EMS Encounter Profile)Encounter in which the request was created
.... reference 1..1stringLiteral reference, Relative, internal or absolute URL
... requester 1..1Reference(CH EMS Organization Profile) {c}Informant organisation (IMC)
.... reference 1..1stringLiteral reference, Relative, internal or absolute URL
... insurance 0..*Reference(CH EMS Coverage Profile)Insurance coverage
.... reference 1..1stringLiteral reference, Relative, internal or absolute URL

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraintsdoco
.. ServiceRequest I0..*ServiceRequestCH EMS ServiceRequest
... id Σ0..1stringLogical id of this artifact
... meta ΣI0..1MetaMetadata about the resource
... implicitRules ?!ΣI0..1uriA set of rules under which this content was created
... language I0..1codeLanguage of the resource content
Binding: CommonLanguages (preferred)
Max Binding: AllLanguages
... text I0..1NarrativeText summary of the resource, for human interpretation
... contained 0..*ResourceInline Resources for requester
... extension I0..*ExtensionAdditional content defined by implementations
... modifierExtension ?!I0..*ExtensionExtensions that cannot be ignored
... identifier ΣI0..*IdentifierIdentifiers assigned to this order
... instantiatesCanonical ΣI0..*canonical(ActivityDefinition | PlanDefinition)Instantiates FHIR protocol or definition
... instantiatesUri ΣI0..*uriInstantiates external protocol or definition
... basedOn ΣI0..*Reference(CarePlan | ServiceRequest | MedicationRequest)What request fulfills
... replaces ΣI0..*Reference(ServiceRequest)What request replaces
... requisition ΣI0..1IdentifierComposite Request ID
... status ?!ΣI1..1codedraft | active | on-hold | revoked | completed | entered-in-error | unknown
Binding: RequestStatus (required)
... intent ?!ΣI1..1codeproposal | plan | directive | order | original-order | reflex-order | filler-order | instance-order | option
Binding: RequestIntent (required)
... category ΣI0..*CodeableConceptClassification of service
Binding: ServiceRequestCategoryCodes (example)
... priority ΣI0..1coderoutine | urgent | asap | stat
Binding: RequestPriority (required)
... doNotPerform ?!ΣI0..1booleanTrue if service/procedure should not be performed
... code ΣI0..1CodeableConceptWhat is being requested/ordered
Binding: ProcedureCodes(SNOMEDCT) (example)
... orderDetail ΣI0..*CodeableConceptAdditional order information
Binding: ServiceRequestOrderDetailsCodes (example)
... quantity[x] ΣI0..1Service amount
.... quantityQuantityQuantity
.... quantityRatioRatio
.... quantityRangeRange
... subject ΣI1..1Reference(CH EMS Patient Profile)Patient
.... id 0..1stringUnique id for inter-element referencing
.... extension I0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... reference ΣI1..1stringLiteral reference, Relative, internal or absolute URL
.... type ΣI0..1uriType the reference refers to (e.g. "Patient")
Binding: ResourceType (extensible)
.... identifier ΣI0..1IdentifierLogical reference, when literal reference is not known
.... display ΣI0..1stringText alternative for the resource
... encounter ΣI0..1Reference(CH EMS Encounter Profile)Encounter in which the request was created
.... id 0..1stringUnique id for inter-element referencing
.... extension I0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... reference ΣI1..1stringLiteral reference, Relative, internal or absolute URL
.... type ΣI0..1uriType the reference refers to (e.g. "Patient")
Binding: ResourceType (extensible)
.... identifier ΣI0..1IdentifierLogical reference, when literal reference is not known
.... display ΣI0..1stringText alternative for the resource
... occurrence[x] ΣI0..1When service should occur
.... occurrenceDateTimedateTime
.... occurrencePeriodPeriod
.... occurrenceTimingTiming
... asNeeded[x] ΣI0..1Preconditions for service
Binding: SNOMEDCTMedicationAsNeededReasonCodes (example)
.... asNeededBooleanboolean
.... asNeededCodeableConceptCodeableConcept
... authoredOn ΣI0..1dateTimeDate request signed
... requester ΣI1..1Reference(CH EMS Organization Profile) {c}Informant organisation (IMC)
.... id 0..1stringUnique id for inter-element referencing
.... extension I0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... reference ΣI1..1stringLiteral reference, Relative, internal or absolute URL
.... type ΣI0..1uriType the reference refers to (e.g. "Patient")
Binding: ResourceType (extensible)
.... identifier ΣI0..1IdentifierLogical reference, when literal reference is not known
.... display ΣI0..1stringText alternative for the resource
... performerType ΣI0..1CodeableConceptPerformer role
Binding: ParticipantRoles (example)
... performer ΣI0..*Reference(Practitioner | PractitionerRole | Organization | CareTeam | HealthcareService | Patient | Device | RelatedPerson)Requested performer
... locationCode ΣI0..*CodeableConceptRequested location
Binding: ServiceDeliveryLocationRoleType (example)
... locationReference ΣI0..*Reference(Location)Requested location
... reasonCode ΣI0..*CodeableConceptExplanation/Justification for procedure or service
Binding: ProcedureReasonCodes (example)
... reasonReference ΣI0..*Reference(Condition | Observation | DiagnosticReport | DocumentReference)Explanation/Justification for service or service
... insurance I0..*Reference(CH EMS Coverage Profile)Insurance coverage
.... id 0..1stringUnique id for inter-element referencing
.... extension I0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... reference ΣI1..1stringLiteral reference, Relative, internal or absolute URL
.... type ΣI0..1uriType the reference refers to (e.g. "Patient")
Binding: ResourceType (extensible)
.... identifier ΣI0..1IdentifierLogical reference, when literal reference is not known
.... display ΣI0..1stringText alternative for the resource
... supportingInfo I0..*Reference(Resource)Additional clinical information
... specimen ΣI0..*Reference(Specimen)Procedure Samples
... bodySite ΣI0..*CodeableConceptLocation on Body
Binding: SNOMEDCTBodyStructures (example)
... note I0..*AnnotationComments
... patientInstruction ΣI0..1stringPatient or consumer-oriented instructions
... relevantHistory I0..*Reference(Provenance)Request provenance

doco Documentation for this format

 

Other representations of profile: Schematron

Terminology Bindings

Terminology Bindings

PathConformanceValueSet
ServiceRequest.languagepreferredCommonLanguages
Max Binding: AllLanguages
ServiceRequest.statusrequiredRequestStatus
ServiceRequest.intentrequiredRequestIntent
ServiceRequest.categoryexampleServiceRequestCategoryCodes
ServiceRequest.priorityrequiredRequestPriority
ServiceRequest.codeexampleProcedureCodes(SNOMEDCT)
ServiceRequest.orderDetailexampleServiceRequestOrderDetailsCodes
ServiceRequest.subject.typeextensibleResourceType
ServiceRequest.encounter.typeextensibleResourceType
ServiceRequest.asNeeded[x]exampleSNOMEDCTMedicationAsNeededReasonCodes
ServiceRequest.requester.typeextensibleResourceType
ServiceRequest.performerTypeexampleParticipantRoles
ServiceRequest.locationCodeexampleServiceDeliveryLocationRoleType
ServiceRequest.reasonCodeexampleProcedureReasonCodes
ServiceRequest.insurance.typeextensibleResourceType
ServiceRequest.bodySiteexampleSNOMEDCTBodyStructures

Constraints

Constraints

IdPathDetailsRequirements
dom-2ServiceRequestIf the resource is contained in another resource, it SHALL NOT contain nested Resources
: contained.contained.empty()
dom-3ServiceRequestIf the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource
: contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4ServiceRequestIf a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated
: contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5ServiceRequestIf a resource is contained in another resource, it SHALL NOT have a security label
: contained.meta.security.empty()
dom-6ServiceRequestA resource should have narrative for robust management
: text.`div`.exists()
prr-1ServiceRequestorderDetail SHALL only be present if code is present
: orderDetail.empty() or code.exists()
ele-1ServiceRequest.metaAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.implicitRulesAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.languageAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.textAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.extensionAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1ServiceRequest.extensionMust have either extensions or value[x], not both
: extension.exists() != value.exists()
ele-1ServiceRequest.modifierExtensionAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1ServiceRequest.modifierExtensionMust have either extensions or value[x], not both
: extension.exists() != value.exists()
ele-1ServiceRequest.identifierAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.instantiatesCanonicalAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.instantiatesUriAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.basedOnAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.replacesAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.requisitionAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.statusAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.intentAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.categoryAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.priorityAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.doNotPerformAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.codeAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.orderDetailAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.quantity[x]All FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.subjectAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.subject.extensionAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1ServiceRequest.subject.extensionMust have either extensions or value[x], not both
: extension.exists() != value.exists()
ele-1ServiceRequest.subject.referenceAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.subject.typeAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.subject.identifierAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.subject.displayAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.encounterAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.encounter.extensionAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1ServiceRequest.encounter.extensionMust have either extensions or value[x], not both
: extension.exists() != value.exists()
ele-1ServiceRequest.encounter.referenceAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.encounter.typeAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.encounter.identifierAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.encounter.displayAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.occurrence[x]All FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.asNeeded[x]All FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.authoredOnAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.requesterAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.requester.extensionAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1ServiceRequest.requester.extensionMust have either extensions or value[x], not both
: extension.exists() != value.exists()
ele-1ServiceRequest.requester.referenceAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.requester.typeAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.requester.identifierAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.requester.displayAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.performerTypeAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.performerAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.locationCodeAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.locationReferenceAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.reasonCodeAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.reasonReferenceAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.insuranceAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.insurance.extensionAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1ServiceRequest.insurance.extensionMust have either extensions or value[x], not both
: extension.exists() != value.exists()
ele-1ServiceRequest.insurance.referenceAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.insurance.typeAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.insurance.identifierAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.insurance.displayAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.supportingInfoAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.specimenAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.bodySiteAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.noteAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.patientInstructionAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ele-1ServiceRequest.relevantHistoryAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())