Canonical Resource Management Infrastructure Implementation Guide
1.0.0-snapshot - Snapshot International flag

Canonical Resource Management Infrastructure Implementation Guide, published by HL7 International / Clinical Decision Support. This guide is not an authorized publication; it is the continuous build for version 1.0.0-snapshot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/crmi-ig/ and changes regularly. See the Directory of published versions

Resource Profile: CRMI Shareable StructureDefinition

Official URL: http://hl7.org/fhir/uv/crmi/StructureDefinition/crmi-shareablestructuredefinition Version: 1.0.0-snapshot
Standards status: Trial-use Maturity Level: 3 Computable Name: CRMIShareableStructureDefinition
Other Identifiers: OID:2.16.840.1.113883.4.642.40.38.42.58

Enforces the minimum information set for the structure definition metadata required by HL7 and other organizations that share and publish structure definitions

Usage:

Formal Views of Profile Content

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

This structure is derived from StructureDefinition

NameFlagsCard.TypeDescription & Constraintsdoco
.. StructureDefinition 1..1 StructureDefinition Structural Definition
... knowledgeCapability S 0..* code shareable | computable | publishable | executable
URL: http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability
Binding: KnowledgeCapability (required)
... knowledgeRepresentationLevel S 0..* code narrative | semi-structured | structured | executable
URL: http://hl7.org/fhir/StructureDefinition/cqf-knowledgeRepresentationLevel
Binding: KnowledgeRepresentationLevelValues (required)
... artifactComment S 0..* (Complex) Additional documentation, review, or usage guidance
URL: http://hl7.org/fhir/StructureDefinition/cqf-artifactComment
... versionPolicy S 0..1 CodeableConcept metadata | strict
URL: http://hl7.org/fhir/StructureDefinition/artifact-versionPolicy
Binding: Artifact Version Policy (extensible): The versioning policy of the artifact

... url S 1..1 uri Canonical identifier for this structure definition, represented as a URI (globally unique)
... version S 1..1 string Business version of the structure definition
... name S 1..1 string Name for this structure definition (computer friendly)
... title S 1..1 string Name for this structure definition (human friendly)
... status S 1..1 code draft | active | retired | unknown
... experimental S 1..1 boolean For testing purposes, not real usage
... publisher S 0..1 string Name of the publisher (organization or individual)
... description S 1..1 markdown Natural language description of the structure definition

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraintsdoco
.. StructureDefinition C 1..1 StructureDefinition Structural Definition
sdf-0: Name should be usable as an identifier for the module by machine processing applications such as code generation
sdf-1: Element paths must be unique unless the structure is a constraint
sdf-15a: If the first element in a differential has no "." in the path and it's not a logical model, it has no type
sdf-4: If the structure is not abstract, then there SHALL be a baseDefinition
sdf-5: If the structure defines an extension then the structure must have context information
sdf-6: A structure must have either a differential, or a snapshot (or both)
sdf-9: In any snapshot or differential, no label, code or requirements on an element without a "." in the path (e.g. the first element)
sdf-11: If there's a type, its content must match the path name in the first element of a snapshot
sdf-14: All element definitions must have an id
sdf-15: The first element in a snapshot has no type unless model is a logical model.
sdf-16: All element definitions must have unique ids (snapshot)
sdf-17: All element definitions must have unique ids (diff)
sdf-18: Context Invariants can only be used for extensions
sdf-19: FHIR Specification models only use FHIR defined types
sdf-21: Default values can only be specified on specializations
sdf-22: FHIR Specification models never have default values
sdf-23: No slice name on root
... implicitRules ?!Σ 0..1 uri A set of rules under which this content was created
... knowledgeCapability S 0..* code shareable | computable | publishable | executable
URL: http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability
Binding: KnowledgeCapability (required)
... knowledgeRepresentationLevel S 0..* code narrative | semi-structured | structured | executable
URL: http://hl7.org/fhir/StructureDefinition/cqf-knowledgeRepresentationLevel
Binding: KnowledgeRepresentationLevelValues (required)
... versionAlgorithm S 0..1 string, Coding How to compare versions
URL: http://hl7.org/fhir/StructureDefinition/artifact-versionAlgorithm
Binding: VersionAlgorithm (extensible)
... versionPolicy S 0..1 CodeableConcept metadata | strict
URL: http://hl7.org/fhir/StructureDefinition/artifact-versionPolicy
Binding: Artifact Version Policy (extensible): The versioning policy of the artifact


... modifierExtension ?! 0..* Extension Extensions that cannot be ignored
... url SΣ 1..1 uri Canonical identifier for this structure definition, represented as a URI (globally unique)
... version SΣ 1..1 string Business version of the structure definition
... name SΣC 1..1 string Name for this structure definition (computer friendly)
... title SΣ 1..1 string Name for this structure definition (human friendly)
... status ?!SΣ 1..1 code draft | active | retired | unknown
Binding: PublicationStatus (required): The lifecycle status of an artifact.

... experimental SΣ 1..1 boolean For testing purposes, not real usage
... publisher SΣ 0..1 string Name of the publisher (organization or individual)
... description S 1..1 markdown Natural language description of the structure definition
... kind Σ 1..1 code primitive-type | complex-type | resource | logical
Binding: StructureDefinitionKind (required): Defines the type of structure that a definition is describing.

... abstract Σ 1..1 boolean Whether the structure is abstract
... type ΣC 1..1 uri Type defined or constrained by this structure
Binding: FHIRDefinedType (extensible): Either a resource or a data type, including logical model types.


doco Documentation for this format

Terminology Bindings

PathConformanceValueSetURI
StructureDefinition.statusrequiredPublicationStatus
http://hl7.org/fhir/ValueSet/publication-status|4.0.1
from the FHIR Standard
StructureDefinition.kindrequiredStructureDefinitionKind
http://hl7.org/fhir/ValueSet/structure-definition-kind|4.0.1
from the FHIR Standard
StructureDefinition.typeextensibleFHIRDefinedType
http://hl7.org/fhir/ValueSet/defined-types
from the FHIR Standard

Constraints

IdGradePath(s)DetailsRequirements
dom-2errorStructureDefinitionIf the resource is contained in another resource, it SHALL NOT contain nested Resources
: contained.contained.empty()
dom-3errorStructureDefinitionIf 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-4errorStructureDefinitionIf 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-5errorStructureDefinitionIf a resource is contained in another resource, it SHALL NOT have a security label
: contained.meta.security.empty()
dom-6best practiceStructureDefinitionA resource should have narrative for robust management
: text.`div`.exists()
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1error**ALL** extensionsMust have either extensions or value[x], not both
: extension.exists() != value.exists()
sdf-0warningStructureDefinitionName should be usable as an identifier for the module by machine processing applications such as code generation
: name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
sdf-1errorStructureDefinitionElement paths must be unique unless the structure is a constraint
: derivation = 'constraint' or snapshot.element.select(path).isDistinct()
sdf-6errorStructureDefinitionA structure must have either a differential, or a snapshot (or both)
: snapshot.exists() or differential.exists()
sdf-14errorStructureDefinitionAll element definitions must have an id
: snapshot.element.all(id.exists()) and differential.element.all(id.exists())
elements have id
sdf-15aerrorStructureDefinitionIf the first element in a differential has no "." in the path and it's not a logical model, it has no type
: (kind!='logical' and differential.element.first().path.contains('.').not()) implies differential.element.first().type.empty()
No Type on the root element (differential)
sdf-4errorStructureDefinitionIf the structure is not abstract, then there SHALL be a baseDefinition
: abstract = true or baseDefinition.exists()
Ensure that the base types are abstract
sdf-5errorStructureDefinitionIf the structure defines an extension then the structure must have context information
: type != 'Extension' or derivation = 'specialization' or (context.exists())
sdf-9errorStructureDefinitionIn any snapshot or differential, no label, code or requirements on an element without a "." in the path (e.g. the first element)
: children().element.where(path.contains('.').not()).label.empty() and children().element.where(path.contains('.').not()).code.empty() and children().element.where(path.contains('.').not()).requirements.empty()
Because these 3 fields seem to be have overlapping meaning with the ones in the root of StructureDefinition
sdf-11errorStructureDefinitionIf there's a type, its content must match the path name in the first element of a snapshot
: kind != 'logical' implies snapshot.empty() or snapshot.element.first().path = type
Ensure that the type is not inconsistent with the other information in the structure
sdf-15errorStructureDefinitionThe first element in a snapshot has no type unless model is a logical model.
: kind!='logical' implies snapshot.element.first().type.empty()
No Type on the root element (snapshot)
sdf-16errorStructureDefinitionAll element definitions must have unique ids (snapshot)
: snapshot.element.all(id.exists()) and snapshot.element.id.trace('ids').isDistinct()
element ids need to be unique
sdf-17errorStructureDefinitionAll element definitions must have unique ids (diff)
: differential.element.all(id.exists()) and differential.element.id.trace('ids').isDistinct()
element ids need to be unique
sdf-18errorStructureDefinitionContext Invariants can only be used for extensions
: contextInvariant.exists() implies type = 'Extension'
contextInvariant
sdf-19errorStructureDefinitionFHIR Specification models only use FHIR defined types
: url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (differential.element.type.code.all(matches('^[a-zA-Z0-9]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')) and snapshot.element.type.code.all(matches('^[a-zA-Z0-9\\.]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')))
custom types only in logical models
sdf-21errorStructureDefinitionDefault values can only be specified on specializations
: differential.element.defaultValue.exists() implies (derivation = 'specialization')
no default values on data types or resources
sdf-22errorStructureDefinitionFHIR Specification models never have default values
: url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (snapshot.element.defaultValue.empty() and differential.element.defaultValue.empty())
no default values on data types or resources
sdf-23errorStructureDefinitionNo slice name on root
: (snapshot | differential).element.all(path.contains('.').not() implies sliceName.empty())
no sliceName on root
NameFlagsCard.TypeDescription & Constraintsdoco
.. StructureDefinition C 1..1 StructureDefinition Structural Definition
sdf-0: Name should be usable as an identifier for the module by machine processing applications such as code generation
sdf-1: Element paths must be unique unless the structure is a constraint
sdf-15a: If the first element in a differential has no "." in the path and it's not a logical model, it has no type
sdf-4: If the structure is not abstract, then there SHALL be a baseDefinition
sdf-5: If the structure defines an extension then the structure must have context information
sdf-6: A structure must have either a differential, or a snapshot (or both)
sdf-9: In any snapshot or differential, no label, code or requirements on an element without a "." in the path (e.g. the first element)
sdf-11: If there's a type, its content must match the path name in the first element of a snapshot
sdf-14: All element definitions must have an id
sdf-15: The first element in a snapshot has no type unless model is a logical model.
sdf-16: All element definitions must have unique ids (snapshot)
sdf-17: All element definitions must have unique ids (diff)
sdf-18: Context Invariants can only be used for extensions
sdf-19: FHIR Specification models only use FHIR defined types
sdf-21: Default values can only be specified on specializations
sdf-22: FHIR Specification models never have default values
sdf-23: No slice name on root
... id Σ 0..1 id Logical id of this artifact
... meta Σ 0..1 Meta Metadata about the resource
... implicitRules ?!Σ 0..1 uri A set of rules under which this content was created
... language 0..1 code Language of the resource content
Binding: CommonLanguages (preferred): A human language.

Additional BindingsPurpose
AllLanguages Max Binding
... text 0..1 Narrative Text summary of the resource, for human interpretation
... contained 0..* Resource Contained, inline Resources
... Slices for extension 0..* Extension Extension
Slice: Unordered, Open by value:url
... knowledgeCapability S 0..* code shareable | computable | publishable | executable
URL: http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability
Binding: KnowledgeCapability (required)
... knowledgeRepresentationLevel S 0..* code narrative | semi-structured | structured | executable
URL: http://hl7.org/fhir/StructureDefinition/cqf-knowledgeRepresentationLevel
Binding: KnowledgeRepresentationLevelValues (required)
... artifactComment S 0..* (Complex) Additional documentation, review, or usage guidance
URL: http://hl7.org/fhir/StructureDefinition/cqf-artifactComment
... versionAlgorithm S 0..1 string, Coding How to compare versions
URL: http://hl7.org/fhir/StructureDefinition/artifact-versionAlgorithm
Binding: VersionAlgorithm (extensible)
... versionPolicy S 0..1 CodeableConcept metadata | strict
URL: http://hl7.org/fhir/StructureDefinition/artifact-versionPolicy
Binding: Artifact Version Policy (extensible): The versioning policy of the artifact


... modifierExtension ?! 0..* Extension Extensions that cannot be ignored
... url SΣ 1..1 uri Canonical identifier for this structure definition, represented as a URI (globally unique)
... identifier Σ 0..* Identifier Additional identifier for the structure definition
... version SΣ 1..1 string Business version of the structure definition
... name SΣC 1..1 string Name for this structure definition (computer friendly)
... title SΣ 1..1 string Name for this structure definition (human friendly)
... status ?!SΣ 1..1 code draft | active | retired | unknown
Binding: PublicationStatus (required): The lifecycle status of an artifact.

... experimental SΣ 1..1 boolean For testing purposes, not real usage
... date Σ 0..1 dateTime Date last changed
... publisher SΣ 0..1 string Name of the publisher (organization or individual)
... contact Σ 0..* ContactDetail Contact details for the publisher
... description S 1..1 markdown Natural language description of the structure definition
... useContext Σ 0..* UsageContext The context that the content is intended to support
... jurisdiction Σ 0..* CodeableConcept Intended jurisdiction for structure definition (if applicable)
Binding: Jurisdiction ValueSet (extensible): Countries and regions within which this artifact is targeted for use.


... purpose 0..1 markdown Why this structure definition is defined
... copyright 0..1 markdown Use and/or publishing restrictions
... keyword Σ 0..* Coding Assist with indexing and finding
Binding: DefinitionUseCodes (extensible): Codes for the meaning of the defined structure (SNOMED CT and LOINC codes, as an example).


... fhirVersion Σ 0..1 code FHIR Version this StructureDefinition targets
Binding: FHIRVersion (required): All published FHIR Versions.

... mapping C 0..* BackboneElement External specification that the content is mapped to
sdf-2: Must have at least a name or a uri (or both)
.... id 0..1 string Unique id for inter-element referencing
.... extension 0..* Extension Additional content defined by implementations
.... modifierExtension ?!Σ 0..* Extension Extensions that cannot be ignored even if unrecognized
.... identity 1..1 id Internal id when this mapping is used
.... uri C 0..1 uri Identifies what this mapping refers to
.... name C 0..1 string Names what this mapping refers to
.... comment 0..1 string Versions, Issues, Scope limitations etc.
... kind Σ 1..1 code primitive-type | complex-type | resource | logical
Binding: StructureDefinitionKind (required): Defines the type of structure that a definition is describing.

... abstract Σ 1..1 boolean Whether the structure is abstract
... context ΣC 0..* BackboneElement If an extension, where it can be used in instances
.... id 0..1 string Unique id for inter-element referencing
.... extension 0..* Extension Additional content defined by implementations
.... modifierExtension ?!Σ 0..* Extension Extensions that cannot be ignored even if unrecognized
.... type Σ 1..1 code fhirpath | element | extension
Binding: ExtensionContextType (required): How an extension context is interpreted.

.... expression Σ 1..1 string Where the extension can be used in instances
... contextInvariant ΣC 0..* string FHIRPath invariants - when the extension can be used
... type ΣC 1..1 uri Type defined or constrained by this structure
Binding: FHIRDefinedType (extensible): Either a resource or a data type, including logical model types.

... baseDefinition ΣC 0..1 canonical(StructureDefinition) Definition that this type is constrained/specialized from
... derivation Σ 0..1 code specialization | constraint - How relates to base definition
Binding: TypeDerivationRule (required): How a type relates to its baseDefinition.

... snapshot C 0..1 BackboneElement Snapshot view of the structure
sdf-3: Each element definition in a snapshot must have a formal definition and cardinalities
sdf-8: All snapshot elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models
sdf-8b: All snapshot elements must have a base definition
.... id 0..1 string Unique id for inter-element referencing
.... extension 0..* Extension Additional content defined by implementations
.... modifierExtension ?!Σ 0..* Extension Extensions that cannot be ignored even if unrecognized
.... element C 1..* ElementDefinition Definition of elements in the resource (if no StructureDefinition)
sdf-10: provide either a binding reference or a description (or both)
... differential C 0..1 BackboneElement Differential view of the structure
sdf-20: No slicing on the root element
sdf-8a: In any differential, all the elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models
.... id 0..1 string Unique id for inter-element referencing
.... extension 0..* Extension Additional content defined by implementations
.... modifierExtension ?!Σ 0..* Extension Extensions that cannot be ignored even if unrecognized
.... element 1..* ElementDefinition Definition of elements in the resource (if no StructureDefinition)

doco Documentation for this format

Terminology Bindings

PathConformanceValueSetURI
StructureDefinition.languagepreferredCommonLanguages
Additional Bindings Purpose
AllLanguages Max Binding
http://hl7.org/fhir/ValueSet/languages
from the FHIR Standard
StructureDefinition.statusrequiredPublicationStatus
http://hl7.org/fhir/ValueSet/publication-status|4.0.1
from the FHIR Standard
StructureDefinition.jurisdictionextensibleJurisdiction ValueSet
http://hl7.org/fhir/ValueSet/jurisdiction
from the FHIR Standard
StructureDefinition.keywordextensibleDefinitionUseCodes
http://hl7.org/fhir/ValueSet/definition-use
from the FHIR Standard
StructureDefinition.fhirVersionrequiredFHIRVersion
http://hl7.org/fhir/ValueSet/FHIR-version|4.0.1
from the FHIR Standard
StructureDefinition.kindrequiredStructureDefinitionKind
http://hl7.org/fhir/ValueSet/structure-definition-kind|4.0.1
from the FHIR Standard
StructureDefinition.context.typerequiredExtensionContextType
http://hl7.org/fhir/ValueSet/extension-context-type|4.0.1
from the FHIR Standard
StructureDefinition.typeextensibleFHIRDefinedType
http://hl7.org/fhir/ValueSet/defined-types
from the FHIR Standard
StructureDefinition.derivationrequiredTypeDerivationRule
http://hl7.org/fhir/ValueSet/type-derivation-rule|4.0.1
from the FHIR Standard

Constraints

IdGradePath(s)DetailsRequirements
dom-2errorStructureDefinitionIf the resource is contained in another resource, it SHALL NOT contain nested Resources
: contained.contained.empty()
dom-3errorStructureDefinitionIf 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-4errorStructureDefinitionIf 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-5errorStructureDefinitionIf a resource is contained in another resource, it SHALL NOT have a security label
: contained.meta.security.empty()
dom-6best practiceStructureDefinitionA resource should have narrative for robust management
: text.`div`.exists()
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1error**ALL** extensionsMust have either extensions or value[x], not both
: extension.exists() != value.exists()
sdf-0warningStructureDefinitionName should be usable as an identifier for the module by machine processing applications such as code generation
: name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
sdf-1errorStructureDefinitionElement paths must be unique unless the structure is a constraint
: derivation = 'constraint' or snapshot.element.select(path).isDistinct()
sdf-15aerrorStructureDefinitionIf the first element in a differential has no "." in the path and it's not a logical model, it has no type
: (kind!='logical' and differential.element.first().path.contains('.').not()) implies differential.element.first().type.empty()
No Type on the root element (differential)
sdf-2errorStructureDefinition.mappingMust have at least a name or a uri (or both)
: name.exists() or uri.exists()
sdf-3errorStructureDefinition.snapshotEach element definition in a snapshot must have a formal definition and cardinalities
: element.all(definition.exists() and min.exists() and max.exists())
sdf-4errorStructureDefinitionIf the structure is not abstract, then there SHALL be a baseDefinition
: abstract = true or baseDefinition.exists()
Ensure that the base types are abstract
sdf-5errorStructureDefinitionIf the structure defines an extension then the structure must have context information
: type != 'Extension' or derivation = 'specialization' or (context.exists())
sdf-6errorStructureDefinitionA structure must have either a differential, or a snapshot (or both)
: snapshot.exists() or differential.exists()
sdf-8errorStructureDefinition.snapshotAll snapshot elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models
: (%resource.kind = 'logical' or element.first().path = %resource.type) and element.tail().all(path.startsWith(%resource.snapshot.element.first().path&'.'))
sdf-9errorStructureDefinitionIn any snapshot or differential, no label, code or requirements on an element without a "." in the path (e.g. the first element)
: children().element.where(path.contains('.').not()).label.empty() and children().element.where(path.contains('.').not()).code.empty() and children().element.where(path.contains('.').not()).requirements.empty()
Because these 3 fields seem to be have overlapping meaning with the ones in the root of StructureDefinition
sdf-10errorStructureDefinition.snapshot.elementprovide either a binding reference or a description (or both)
: binding.empty() or binding.valueSet.exists() or binding.description.exists()
binding is required
sdf-11errorStructureDefinitionIf there's a type, its content must match the path name in the first element of a snapshot
: kind != 'logical' implies snapshot.empty() or snapshot.element.first().path = type
Ensure that the type is not inconsistent with the other information in the structure
sdf-14errorStructureDefinitionAll element definitions must have an id
: snapshot.element.all(id.exists()) and differential.element.all(id.exists())
elements have id
sdf-15errorStructureDefinitionThe first element in a snapshot has no type unless model is a logical model.
: kind!='logical' implies snapshot.element.first().type.empty()
No Type on the root element (snapshot)
sdf-16errorStructureDefinitionAll element definitions must have unique ids (snapshot)
: snapshot.element.all(id.exists()) and snapshot.element.id.trace('ids').isDistinct()
element ids need to be unique
sdf-17errorStructureDefinitionAll element definitions must have unique ids (diff)
: differential.element.all(id.exists()) and differential.element.id.trace('ids').isDistinct()
element ids need to be unique
sdf-18errorStructureDefinitionContext Invariants can only be used for extensions
: contextInvariant.exists() implies type = 'Extension'
contextInvariant
sdf-19errorStructureDefinitionFHIR Specification models only use FHIR defined types
: url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (differential.element.type.code.all(matches('^[a-zA-Z0-9]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')) and snapshot.element.type.code.all(matches('^[a-zA-Z0-9\\.]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')))
custom types only in logical models
sdf-20errorStructureDefinition.differentialNo slicing on the root element
: element.where(path.contains('.').not()).slicing.empty()
no slicing on root
sdf-21errorStructureDefinitionDefault values can only be specified on specializations
: differential.element.defaultValue.exists() implies (derivation = 'specialization')
no default values on data types or resources
sdf-22errorStructureDefinitionFHIR Specification models never have default values
: url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (snapshot.element.defaultValue.empty() and differential.element.defaultValue.empty())
no default values on data types or resources
sdf-23errorStructureDefinitionNo slice name on root
: (snapshot | differential).element.all(path.contains('.').not() implies sliceName.empty())
no sliceName on root
sdf-8aerrorStructureDefinition.differentialIn any differential, all the elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models
: (%resource.kind = 'logical' or element.first().path.startsWith(%resource.type)) and (element.tail().empty() or element.tail().all(path.startsWith(%resource.differential.element.first().path.replaceMatches('\\..*','')&'.')))
sdf-8berrorStructureDefinition.snapshotAll snapshot elements must have a base definition
: element.all(base.exists())

Differential View

This structure is derived from StructureDefinition

NameFlagsCard.TypeDescription & Constraintsdoco
.. StructureDefinition 1..1 StructureDefinition Structural Definition
... knowledgeCapability S 0..* code shareable | computable | publishable | executable
URL: http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability
Binding: KnowledgeCapability (required)
... knowledgeRepresentationLevel S 0..* code narrative | semi-structured | structured | executable
URL: http://hl7.org/fhir/StructureDefinition/cqf-knowledgeRepresentationLevel
Binding: KnowledgeRepresentationLevelValues (required)
... artifactComment S 0..* (Complex) Additional documentation, review, or usage guidance
URL: http://hl7.org/fhir/StructureDefinition/cqf-artifactComment
... versionPolicy S 0..1 CodeableConcept metadata | strict
URL: http://hl7.org/fhir/StructureDefinition/artifact-versionPolicy
Binding: Artifact Version Policy (extensible): The versioning policy of the artifact

... url S 1..1 uri Canonical identifier for this structure definition, represented as a URI (globally unique)
... version S 1..1 string Business version of the structure definition
... name S 1..1 string Name for this structure definition (computer friendly)
... title S 1..1 string Name for this structure definition (human friendly)
... status S 1..1 code draft | active | retired | unknown
... experimental S 1..1 boolean For testing purposes, not real usage
... publisher S 0..1 string Name of the publisher (organization or individual)
... description S 1..1 markdown Natural language description of the structure definition

doco Documentation for this format

Key Elements View

NameFlagsCard.TypeDescription & Constraintsdoco
.. StructureDefinition C 1..1 StructureDefinition Structural Definition
sdf-0: Name should be usable as an identifier for the module by machine processing applications such as code generation
sdf-1: Element paths must be unique unless the structure is a constraint
sdf-15a: If the first element in a differential has no "." in the path and it's not a logical model, it has no type
sdf-4: If the structure is not abstract, then there SHALL be a baseDefinition
sdf-5: If the structure defines an extension then the structure must have context information
sdf-6: A structure must have either a differential, or a snapshot (or both)
sdf-9: In any snapshot or differential, no label, code or requirements on an element without a "." in the path (e.g. the first element)
sdf-11: If there's a type, its content must match the path name in the first element of a snapshot
sdf-14: All element definitions must have an id
sdf-15: The first element in a snapshot has no type unless model is a logical model.
sdf-16: All element definitions must have unique ids (snapshot)
sdf-17: All element definitions must have unique ids (diff)
sdf-18: Context Invariants can only be used for extensions
sdf-19: FHIR Specification models only use FHIR defined types
sdf-21: Default values can only be specified on specializations
sdf-22: FHIR Specification models never have default values
sdf-23: No slice name on root
... implicitRules ?!Σ 0..1 uri A set of rules under which this content was created
... knowledgeCapability S 0..* code shareable | computable | publishable | executable
URL: http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability
Binding: KnowledgeCapability (required)
... knowledgeRepresentationLevel S 0..* code narrative | semi-structured | structured | executable
URL: http://hl7.org/fhir/StructureDefinition/cqf-knowledgeRepresentationLevel
Binding: KnowledgeRepresentationLevelValues (required)
... versionAlgorithm S 0..1 string, Coding How to compare versions
URL: http://hl7.org/fhir/StructureDefinition/artifact-versionAlgorithm
Binding: VersionAlgorithm (extensible)
... versionPolicy S 0..1 CodeableConcept metadata | strict
URL: http://hl7.org/fhir/StructureDefinition/artifact-versionPolicy
Binding: Artifact Version Policy (extensible): The versioning policy of the artifact


... modifierExtension ?! 0..* Extension Extensions that cannot be ignored
... url SΣ 1..1 uri Canonical identifier for this structure definition, represented as a URI (globally unique)
... version SΣ 1..1 string Business version of the structure definition
... name SΣC 1..1 string Name for this structure definition (computer friendly)
... title SΣ 1..1 string Name for this structure definition (human friendly)
... status ?!SΣ 1..1 code draft | active | retired | unknown
Binding: PublicationStatus (required): The lifecycle status of an artifact.

... experimental SΣ 1..1 boolean For testing purposes, not real usage
... publisher SΣ 0..1 string Name of the publisher (organization or individual)
... description S 1..1 markdown Natural language description of the structure definition
... kind Σ 1..1 code primitive-type | complex-type | resource | logical
Binding: StructureDefinitionKind (required): Defines the type of structure that a definition is describing.

... abstract Σ 1..1 boolean Whether the structure is abstract
... type ΣC 1..1 uri Type defined or constrained by this structure
Binding: FHIRDefinedType (extensible): Either a resource or a data type, including logical model types.


doco Documentation for this format

Terminology Bindings

PathConformanceValueSetURI
StructureDefinition.statusrequiredPublicationStatus
http://hl7.org/fhir/ValueSet/publication-status|4.0.1
from the FHIR Standard
StructureDefinition.kindrequiredStructureDefinitionKind
http://hl7.org/fhir/ValueSet/structure-definition-kind|4.0.1
from the FHIR Standard
StructureDefinition.typeextensibleFHIRDefinedType
http://hl7.org/fhir/ValueSet/defined-types
from the FHIR Standard

Constraints

IdGradePath(s)DetailsRequirements
dom-2errorStructureDefinitionIf the resource is contained in another resource, it SHALL NOT contain nested Resources
: contained.contained.empty()
dom-3errorStructureDefinitionIf 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-4errorStructureDefinitionIf 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-5errorStructureDefinitionIf a resource is contained in another resource, it SHALL NOT have a security label
: contained.meta.security.empty()
dom-6best practiceStructureDefinitionA resource should have narrative for robust management
: text.`div`.exists()
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1error**ALL** extensionsMust have either extensions or value[x], not both
: extension.exists() != value.exists()
sdf-0warningStructureDefinitionName should be usable as an identifier for the module by machine processing applications such as code generation
: name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
sdf-1errorStructureDefinitionElement paths must be unique unless the structure is a constraint
: derivation = 'constraint' or snapshot.element.select(path).isDistinct()
sdf-6errorStructureDefinitionA structure must have either a differential, or a snapshot (or both)
: snapshot.exists() or differential.exists()
sdf-14errorStructureDefinitionAll element definitions must have an id
: snapshot.element.all(id.exists()) and differential.element.all(id.exists())
elements have id
sdf-15aerrorStructureDefinitionIf the first element in a differential has no "." in the path and it's not a logical model, it has no type
: (kind!='logical' and differential.element.first().path.contains('.').not()) implies differential.element.first().type.empty()
No Type on the root element (differential)
sdf-4errorStructureDefinitionIf the structure is not abstract, then there SHALL be a baseDefinition
: abstract = true or baseDefinition.exists()
Ensure that the base types are abstract
sdf-5errorStructureDefinitionIf the structure defines an extension then the structure must have context information
: type != 'Extension' or derivation = 'specialization' or (context.exists())
sdf-9errorStructureDefinitionIn any snapshot or differential, no label, code or requirements on an element without a "." in the path (e.g. the first element)
: children().element.where(path.contains('.').not()).label.empty() and children().element.where(path.contains('.').not()).code.empty() and children().element.where(path.contains('.').not()).requirements.empty()
Because these 3 fields seem to be have overlapping meaning with the ones in the root of StructureDefinition
sdf-11errorStructureDefinitionIf there's a type, its content must match the path name in the first element of a snapshot
: kind != 'logical' implies snapshot.empty() or snapshot.element.first().path = type
Ensure that the type is not inconsistent with the other information in the structure
sdf-15errorStructureDefinitionThe first element in a snapshot has no type unless model is a logical model.
: kind!='logical' implies snapshot.element.first().type.empty()
No Type on the root element (snapshot)
sdf-16errorStructureDefinitionAll element definitions must have unique ids (snapshot)
: snapshot.element.all(id.exists()) and snapshot.element.id.trace('ids').isDistinct()
element ids need to be unique
sdf-17errorStructureDefinitionAll element definitions must have unique ids (diff)
: differential.element.all(id.exists()) and differential.element.id.trace('ids').isDistinct()
element ids need to be unique
sdf-18errorStructureDefinitionContext Invariants can only be used for extensions
: contextInvariant.exists() implies type = 'Extension'
contextInvariant
sdf-19errorStructureDefinitionFHIR Specification models only use FHIR defined types
: url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (differential.element.type.code.all(matches('^[a-zA-Z0-9]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')) and snapshot.element.type.code.all(matches('^[a-zA-Z0-9\\.]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')))
custom types only in logical models
sdf-21errorStructureDefinitionDefault values can only be specified on specializations
: differential.element.defaultValue.exists() implies (derivation = 'specialization')
no default values on data types or resources
sdf-22errorStructureDefinitionFHIR Specification models never have default values
: url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (snapshot.element.defaultValue.empty() and differential.element.defaultValue.empty())
no default values on data types or resources
sdf-23errorStructureDefinitionNo slice name on root
: (snapshot | differential).element.all(path.contains('.').not() implies sliceName.empty())
no sliceName on root

Snapshot View

NameFlagsCard.TypeDescription & Constraintsdoco
.. StructureDefinition C 1..1 StructureDefinition Structural Definition
sdf-0: Name should be usable as an identifier for the module by machine processing applications such as code generation
sdf-1: Element paths must be unique unless the structure is a constraint
sdf-15a: If the first element in a differential has no "." in the path and it's not a logical model, it has no type
sdf-4: If the structure is not abstract, then there SHALL be a baseDefinition
sdf-5: If the structure defines an extension then the structure must have context information
sdf-6: A structure must have either a differential, or a snapshot (or both)
sdf-9: In any snapshot or differential, no label, code or requirements on an element without a "." in the path (e.g. the first element)
sdf-11: If there's a type, its content must match the path name in the first element of a snapshot
sdf-14: All element definitions must have an id
sdf-15: The first element in a snapshot has no type unless model is a logical model.
sdf-16: All element definitions must have unique ids (snapshot)
sdf-17: All element definitions must have unique ids (diff)
sdf-18: Context Invariants can only be used for extensions
sdf-19: FHIR Specification models only use FHIR defined types
sdf-21: Default values can only be specified on specializations
sdf-22: FHIR Specification models never have default values
sdf-23: No slice name on root
... id Σ 0..1 id Logical id of this artifact
... meta Σ 0..1 Meta Metadata about the resource
... implicitRules ?!Σ 0..1 uri A set of rules under which this content was created
... language 0..1 code Language of the resource content
Binding: CommonLanguages (preferred): A human language.

Additional BindingsPurpose
AllLanguages Max Binding
... text 0..1 Narrative Text summary of the resource, for human interpretation
... contained 0..* Resource Contained, inline Resources
... Slices for extension 0..* Extension Extension
Slice: Unordered, Open by value:url
... knowledgeCapability S 0..* code shareable | computable | publishable | executable
URL: http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability
Binding: KnowledgeCapability (required)
... knowledgeRepresentationLevel S 0..* code narrative | semi-structured | structured | executable
URL: http://hl7.org/fhir/StructureDefinition/cqf-knowledgeRepresentationLevel
Binding: KnowledgeRepresentationLevelValues (required)
... artifactComment S 0..* (Complex) Additional documentation, review, or usage guidance
URL: http://hl7.org/fhir/StructureDefinition/cqf-artifactComment
... versionAlgorithm S 0..1 string, Coding How to compare versions
URL: http://hl7.org/fhir/StructureDefinition/artifact-versionAlgorithm
Binding: VersionAlgorithm (extensible)
... versionPolicy S 0..1 CodeableConcept metadata | strict
URL: http://hl7.org/fhir/StructureDefinition/artifact-versionPolicy
Binding: Artifact Version Policy (extensible): The versioning policy of the artifact


... modifierExtension ?! 0..* Extension Extensions that cannot be ignored
... url SΣ 1..1 uri Canonical identifier for this structure definition, represented as a URI (globally unique)
... identifier Σ 0..* Identifier Additional identifier for the structure definition
... version SΣ 1..1 string Business version of the structure definition
... name SΣC 1..1 string Name for this structure definition (computer friendly)
... title SΣ 1..1 string Name for this structure definition (human friendly)
... status ?!SΣ 1..1 code draft | active | retired | unknown
Binding: PublicationStatus (required): The lifecycle status of an artifact.

... experimental SΣ 1..1 boolean For testing purposes, not real usage
... date Σ 0..1 dateTime Date last changed
... publisher SΣ 0..1 string Name of the publisher (organization or individual)
... contact Σ 0..* ContactDetail Contact details for the publisher
... description S 1..1 markdown Natural language description of the structure definition
... useContext Σ 0..* UsageContext The context that the content is intended to support
... jurisdiction Σ 0..* CodeableConcept Intended jurisdiction for structure definition (if applicable)
Binding: Jurisdiction ValueSet (extensible): Countries and regions within which this artifact is targeted for use.


... purpose 0..1 markdown Why this structure definition is defined
... copyright 0..1 markdown Use and/or publishing restrictions
... keyword Σ 0..* Coding Assist with indexing and finding
Binding: DefinitionUseCodes (extensible): Codes for the meaning of the defined structure (SNOMED CT and LOINC codes, as an example).


... fhirVersion Σ 0..1 code FHIR Version this StructureDefinition targets
Binding: FHIRVersion (required): All published FHIR Versions.

... mapping C 0..* BackboneElement External specification that the content is mapped to
sdf-2: Must have at least a name or a uri (or both)
.... id 0..1 string Unique id for inter-element referencing
.... extension 0..* Extension Additional content defined by implementations
.... modifierExtension ?!Σ 0..* Extension Extensions that cannot be ignored even if unrecognized
.... identity 1..1 id Internal id when this mapping is used
.... uri C 0..1 uri Identifies what this mapping refers to
.... name C 0..1 string Names what this mapping refers to
.... comment 0..1 string Versions, Issues, Scope limitations etc.
... kind Σ 1..1 code primitive-type | complex-type | resource | logical
Binding: StructureDefinitionKind (required): Defines the type of structure that a definition is describing.

... abstract Σ 1..1 boolean Whether the structure is abstract
... context ΣC 0..* BackboneElement If an extension, where it can be used in instances
.... id 0..1 string Unique id for inter-element referencing
.... extension 0..* Extension Additional content defined by implementations
.... modifierExtension ?!Σ 0..* Extension Extensions that cannot be ignored even if unrecognized
.... type Σ 1..1 code fhirpath | element | extension
Binding: ExtensionContextType (required): How an extension context is interpreted.

.... expression Σ 1..1 string Where the extension can be used in instances
... contextInvariant ΣC 0..* string FHIRPath invariants - when the extension can be used
... type ΣC 1..1 uri Type defined or constrained by this structure
Binding: FHIRDefinedType (extensible): Either a resource or a data type, including logical model types.

... baseDefinition ΣC 0..1 canonical(StructureDefinition) Definition that this type is constrained/specialized from
... derivation Σ 0..1 code specialization | constraint - How relates to base definition
Binding: TypeDerivationRule (required): How a type relates to its baseDefinition.

... snapshot C 0..1 BackboneElement Snapshot view of the structure
sdf-3: Each element definition in a snapshot must have a formal definition and cardinalities
sdf-8: All snapshot elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models
sdf-8b: All snapshot elements must have a base definition
.... id 0..1 string Unique id for inter-element referencing
.... extension 0..* Extension Additional content defined by implementations
.... modifierExtension ?!Σ 0..* Extension Extensions that cannot be ignored even if unrecognized
.... element C 1..* ElementDefinition Definition of elements in the resource (if no StructureDefinition)
sdf-10: provide either a binding reference or a description (or both)
... differential C 0..1 BackboneElement Differential view of the structure
sdf-20: No slicing on the root element
sdf-8a: In any differential, all the elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models
.... id 0..1 string Unique id for inter-element referencing
.... extension 0..* Extension Additional content defined by implementations
.... modifierExtension ?!Σ 0..* Extension Extensions that cannot be ignored even if unrecognized
.... element 1..* ElementDefinition Definition of elements in the resource (if no StructureDefinition)

doco Documentation for this format

Terminology Bindings

PathConformanceValueSetURI
StructureDefinition.languagepreferredCommonLanguages
Additional Bindings Purpose
AllLanguages Max Binding
http://hl7.org/fhir/ValueSet/languages
from the FHIR Standard
StructureDefinition.statusrequiredPublicationStatus
http://hl7.org/fhir/ValueSet/publication-status|4.0.1
from the FHIR Standard
StructureDefinition.jurisdictionextensibleJurisdiction ValueSet
http://hl7.org/fhir/ValueSet/jurisdiction
from the FHIR Standard
StructureDefinition.keywordextensibleDefinitionUseCodes
http://hl7.org/fhir/ValueSet/definition-use
from the FHIR Standard
StructureDefinition.fhirVersionrequiredFHIRVersion
http://hl7.org/fhir/ValueSet/FHIR-version|4.0.1
from the FHIR Standard
StructureDefinition.kindrequiredStructureDefinitionKind
http://hl7.org/fhir/ValueSet/structure-definition-kind|4.0.1
from the FHIR Standard
StructureDefinition.context.typerequiredExtensionContextType
http://hl7.org/fhir/ValueSet/extension-context-type|4.0.1
from the FHIR Standard
StructureDefinition.typeextensibleFHIRDefinedType
http://hl7.org/fhir/ValueSet/defined-types
from the FHIR Standard
StructureDefinition.derivationrequiredTypeDerivationRule
http://hl7.org/fhir/ValueSet/type-derivation-rule|4.0.1
from the FHIR Standard

Constraints

IdGradePath(s)DetailsRequirements
dom-2errorStructureDefinitionIf the resource is contained in another resource, it SHALL NOT contain nested Resources
: contained.contained.empty()
dom-3errorStructureDefinitionIf 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-4errorStructureDefinitionIf 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-5errorStructureDefinitionIf a resource is contained in another resource, it SHALL NOT have a security label
: contained.meta.security.empty()
dom-6best practiceStructureDefinitionA resource should have narrative for robust management
: text.`div`.exists()
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1error**ALL** extensionsMust have either extensions or value[x], not both
: extension.exists() != value.exists()
sdf-0warningStructureDefinitionName should be usable as an identifier for the module by machine processing applications such as code generation
: name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
sdf-1errorStructureDefinitionElement paths must be unique unless the structure is a constraint
: derivation = 'constraint' or snapshot.element.select(path).isDistinct()
sdf-15aerrorStructureDefinitionIf the first element in a differential has no "." in the path and it's not a logical model, it has no type
: (kind!='logical' and differential.element.first().path.contains('.').not()) implies differential.element.first().type.empty()
No Type on the root element (differential)
sdf-2errorStructureDefinition.mappingMust have at least a name or a uri (or both)
: name.exists() or uri.exists()
sdf-3errorStructureDefinition.snapshotEach element definition in a snapshot must have a formal definition and cardinalities
: element.all(definition.exists() and min.exists() and max.exists())
sdf-4errorStructureDefinitionIf the structure is not abstract, then there SHALL be a baseDefinition
: abstract = true or baseDefinition.exists()
Ensure that the base types are abstract
sdf-5errorStructureDefinitionIf the structure defines an extension then the structure must have context information
: type != 'Extension' or derivation = 'specialization' or (context.exists())
sdf-6errorStructureDefinitionA structure must have either a differential, or a snapshot (or both)
: snapshot.exists() or differential.exists()
sdf-8errorStructureDefinition.snapshotAll snapshot elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models
: (%resource.kind = 'logical' or element.first().path = %resource.type) and element.tail().all(path.startsWith(%resource.snapshot.element.first().path&'.'))
sdf-9errorStructureDefinitionIn any snapshot or differential, no label, code or requirements on an element without a "." in the path (e.g. the first element)
: children().element.where(path.contains('.').not()).label.empty() and children().element.where(path.contains('.').not()).code.empty() and children().element.where(path.contains('.').not()).requirements.empty()
Because these 3 fields seem to be have overlapping meaning with the ones in the root of StructureDefinition
sdf-10errorStructureDefinition.snapshot.elementprovide either a binding reference or a description (or both)
: binding.empty() or binding.valueSet.exists() or binding.description.exists()
binding is required
sdf-11errorStructureDefinitionIf there's a type, its content must match the path name in the first element of a snapshot
: kind != 'logical' implies snapshot.empty() or snapshot.element.first().path = type
Ensure that the type is not inconsistent with the other information in the structure
sdf-14errorStructureDefinitionAll element definitions must have an id
: snapshot.element.all(id.exists()) and differential.element.all(id.exists())
elements have id
sdf-15errorStructureDefinitionThe first element in a snapshot has no type unless model is a logical model.
: kind!='logical' implies snapshot.element.first().type.empty()
No Type on the root element (snapshot)
sdf-16errorStructureDefinitionAll element definitions must have unique ids (snapshot)
: snapshot.element.all(id.exists()) and snapshot.element.id.trace('ids').isDistinct()
element ids need to be unique
sdf-17errorStructureDefinitionAll element definitions must have unique ids (diff)
: differential.element.all(id.exists()) and differential.element.id.trace('ids').isDistinct()
element ids need to be unique
sdf-18errorStructureDefinitionContext Invariants can only be used for extensions
: contextInvariant.exists() implies type = 'Extension'
contextInvariant
sdf-19errorStructureDefinitionFHIR Specification models only use FHIR defined types
: url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (differential.element.type.code.all(matches('^[a-zA-Z0-9]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')) and snapshot.element.type.code.all(matches('^[a-zA-Z0-9\\.]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')))
custom types only in logical models
sdf-20errorStructureDefinition.differentialNo slicing on the root element
: element.where(path.contains('.').not()).slicing.empty()
no slicing on root
sdf-21errorStructureDefinitionDefault values can only be specified on specializations
: differential.element.defaultValue.exists() implies (derivation = 'specialization')
no default values on data types or resources
sdf-22errorStructureDefinitionFHIR Specification models never have default values
: url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (snapshot.element.defaultValue.empty() and differential.element.defaultValue.empty())
no default values on data types or resources
sdf-23errorStructureDefinitionNo slice name on root
: (snapshot | differential).element.all(path.contains('.').not() implies sliceName.empty())
no sliceName on root
sdf-8aerrorStructureDefinition.differentialIn any differential, all the elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models
: (%resource.kind = 'logical' or element.first().path.startsWith(%resource.type)) and (element.tail().empty() or element.tail().all(path.startsWith(%resource.differential.element.first().path.replaceMatches('\\..*','')&'.')))
sdf-8berrorStructureDefinition.snapshotAll snapshot elements must have a base definition
: element.all(base.exists())

 

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