FHIR Implementation Guide Experiment 01
0.0.1 - CI Build
FHIR Implementation Guide Experiment 01
0.0.1 - CI Build
FHIR Implementation Guide Experiment 01 - Local Development build (v0.0.1). See the Directory of published versions
| Official URL: https://about.me/robeastwood/fhir/ig/StructureDefinition/structuredefinition-meta-1 | Version: 0.0.1 | |||
| Draft as of 2022-03-25 | Computable Name: StructureDefinitionMeta | |||
Copyright/Legal: This is free and unencumbered software released into the public domain. |
||||
The purpose of this profile is to enforce conventions for profiles, in metadata and structure
Usage:
Description of Profiles, Differentials, Snapshots and how the different presentations work.
This structure is derived from StructureDefinition
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  StructureDefinition | C | 0..* | StructureDefinition | Structural Definition inv-dh-sdf-01: The URL namespace shall be 'https://about.me/robeastwood/fhir/ig/StructureDefinition' inv-dh-sdf-02: The version number is in semantic versioning format ('n.n.n'), with the major version number at least 1 |
  id | 1..1 | id | Logical id of this artifact | |
| implicitRules | 0..0 | |||
| language | 0..0 | |||
| contained | 0..0 | |||
| url | 1..1 | uri | Canonical identifier for this structure definition, represented as a URI (globally unique) | |
| identifier | 0..0 | |||
| version | 1..1 | string | Business version of the structure definition | |
| name | 1..1 | string | Name for this structure definition (computer friendly) | |
| title | 1..1 | string | Name for this structure definition (human friendly) | |
| experimental | 1..1 | boolean | For testing purposes, not real usage | |
| date | 1..1 | dateTime | Date last changed | |
| useContext | 0..0 | |||
| jurisdiction | 0..0 | |||
| purpose | 0..0 | |||
| copyright | 1..1 | markdown | Use and/or publishing restrictions | |
| keyword | 0..0 | |||
 fhirVersion | 1..1 | code | FHIR Version this StructureDefinition targets | |
| Documentation for this format | ||||
| Id | Grade | Path(s) | Details | Requirements |
| inv-dh-sdf-01 | error | StructureDefinition | The URL namespace shall be 'https://about.me/robeastwood/fhir/ig/StructureDefinition' : url.startsWith('https://about.me/robeastwood/fhir/ig/StructureDefinition/') | |
| inv-dh-sdf-02 | error | StructureDefinition | The version number is in semantic versioning format ('n.n.n'), with the major version number at least 1 : version.matches('^[0-9]{1,2}[.][0-9]{1,2}[.][0-9]{1,2}$') |
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| StructureDefinition | C | 0..* | StructureDefinition | Structural Definition inv-dh-sdf-01: The URL namespace shall be 'https://about.me/robeastwood/fhir/ig/StructureDefinition' inv-dh-sdf-02: The version number is in semantic versioning format ('n.n.n'), with the major version number at least 1 |
 id | Σ | 1..1 | id | Logical id of this artifact |
 modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored |
| url | Σ | 1..1 | uri | Canonical identifier for this structure definition, represented as a URI (globally unique) |
| version | Σ | 1..1 | string | Business version of the structure definition |
| name | ΣC | 1..1 | string | Name for this structure definition (computer friendly) |
| title | Σ | 1..1 | string | Name for this structure definition (human friendly) |
| status | ?!Σ | 1..1 | code | draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact. |
| experimental | Σ | 1..1 | boolean | For testing purposes, not real usage |
| date | Σ | 1..1 | dateTime | Date last changed |
| copyright | 1..1 | markdown | Use and/or publishing restrictions | |
| fhirVersion | Σ | 1..1 | code | FHIR Version this StructureDefinition targets Binding: FHIRVersion (required): All published FHIR Versions. |
| 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. |
| Documentation for this format | ||||
| Path | Conformance | ValueSet |
| StructureDefinition.status | required | PublicationStatus |
| StructureDefinition.fhirVersion | required | FHIRVersion |
| StructureDefinition.kind | required | StructureDefinitionKind |
| StructureDefinition.type | extensible | FHIRDefinedType |
| Id | Grade | Path(s) | Details | Requirements |
| dom-2 | error | StructureDefinition | If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty() | |
| dom-3 | error | StructureDefinition | If 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-4 | error | StructureDefinition | If 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-5 | error | StructureDefinition | If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty() | |
| dom-6 | best practice | StructureDefinition | A resource should have narrative for robust management : text.`div`.exists() | |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) | |
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both : extension.exists() != value.exists() | |
| inv-dh-sdf-01 | error | StructureDefinition | The URL namespace shall be 'https://about.me/robeastwood/fhir/ig/StructureDefinition' : url.startsWith('https://about.me/robeastwood/fhir/ig/StructureDefinition/') | |
| inv-dh-sdf-02 | error | StructureDefinition | The version number is in semantic versioning format ('n.n.n'), with the major version number at least 1 : version.matches('^[0-9]{1,2}[.][0-9]{1,2}[.][0-9]{1,2}$') | |
| sdf-0 | warning | StructureDefinition | Name 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-1 | error | StructureDefinition | Element paths must be unique unless the structure is a constraint : derivation = 'constraint' or snapshot.element.select(path).isDistinct() | |
| sdf-15a | error | StructureDefinition | If 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-4 | error | StructureDefinition | If the structure is not abstract, then there SHALL be a baseDefinition : abstract = true or baseDefinition.exists() | Ensure that the base types are abstract |
| sdf-5 | error | StructureDefinition | If the structure defines an extension then the structure must have context information : type != 'Extension' or derivation = 'specialization' or (context.exists()) | |
| sdf-6 | error | StructureDefinition | A structure must have either a differential, or a snapshot (or both) : snapshot.exists() or differential.exists() | |
| sdf-9 | error | StructureDefinition | In 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-11 | error | StructureDefinition | If 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-14 | error | StructureDefinition | All element definitions must have an id : snapshot.element.all(id.exists()) and differential.element.all(id.exists()) | elements have id |
| sdf-15 | error | StructureDefinition | The 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-16 | error | StructureDefinition | All 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-17 | error | StructureDefinition | All 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-18 | error | StructureDefinition | Context Invariants can only be used for extensions : contextInvariant.exists() implies type = 'Extension' | contextInvariant |
| sdf-19 | error | StructureDefinition | FHIR 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-21 | error | StructureDefinition | Default values can only be specified on specializations : differential.element.defaultValue.exists() implies (derivation = 'specialization') | no default values on data types or resources |
| sdf-22 | error | StructureDefinition | FHIR 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-23 | error | StructureDefinition | No slice name on root : (snapshot | differential).element.all(path.contains('.').not() implies sliceName.empty()) | no sliceName on root |
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| StructureDefinition | C | 0..* | StructureDefinition | Structural Definition inv-dh-sdf-01: The URL namespace shall be 'https://about.me/robeastwood/fhir/ig/StructureDefinition' inv-dh-sdf-02: The version number is in semantic versioning format ('n.n.n'), with the major version number at least 1 |
| id | Σ | 1..1 | id | Logical id of this artifact |
 meta | Σ | 0..1 | Meta | Metadata about the resource |
| text | 0..1 | Narrative | Text summary of the resource, for human interpretation | |
 extension | 0..* | Extension | Additional content defined by implementations | |
| modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored |
| url | Σ | 1..1 | uri | Canonical identifier for this structure definition, represented as a URI (globally unique) |
| version | Σ | 1..1 | string | Business version of the structure definition |
| name | ΣC | 1..1 | string | Name for this structure definition (computer friendly) |
| title | Σ | 1..1 | string | Name for this structure definition (human friendly) |
| status | ?!Σ | 1..1 | code | draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact. |
| experimental | Σ | 1..1 | boolean | For testing purposes, not real usage |
| date | Σ | 1..1 | dateTime | Date last changed |
| publisher | Σ | 0..1 | string | Name of the publisher (organization or individual) |
| contact | Σ | 0..* | ContactDetail | Contact details for the publisher |
| description | 0..1 | markdown | Natural language description of the structure definition | |
| copyright | 1..1 | markdown | Use and/or publishing restrictions | |
| fhirVersion | Σ | 1..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 |
 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 |
| 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) |
 differential | C | 0..1 | BackboneElement | Differential view of the structure |
 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) | |
| Documentation for this format | ||||
| Path | Conformance | ValueSet |
| StructureDefinition.status | required | PublicationStatus |
| StructureDefinition.fhirVersion | required | FHIRVersion |
| StructureDefinition.kind | required | StructureDefinitionKind |
| StructureDefinition.context.type | required | ExtensionContextType |
| StructureDefinition.type | extensible | FHIRDefinedType |
| StructureDefinition.derivation | required | TypeDerivationRule |
| Id | Grade | Path(s) | Details | Requirements |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) | |
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both : extension.exists() != value.exists() | |
| sdf-2 | error | StructureDefinition.mapping | Must have at least a name or a uri (or both) : name.exists() or uri.exists() | |
| sdf-3 | error | StructureDefinition.snapshot | Each element definition in a snapshot must have a formal definition and cardinalities : element.all(definition.exists() and min.exists() and max.exists()) | |
| sdf-8 | error | StructureDefinition.snapshot | All 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-10 | error | StructureDefinition.snapshot.element | provide either a binding reference or a description (or both) : binding.empty() or binding.valueSet.exists() or binding.description.exists() | binding is required |
| sdf-20 | error | StructureDefinition.differential | No slicing on the root element : element.where(path.contains('.').not()).slicing.empty() | no slicing on root |
| sdf-8a | error | StructureDefinition.differential | 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 : (%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-8b | error | StructureDefinition.snapshot | All snapshot elements must have a base definition : element.all(base.exists()) |
This structure is derived from StructureDefinition
Differential View
This structure is derived from StructureDefinition
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| StructureDefinition | C | 0..* | StructureDefinition | Structural Definition inv-dh-sdf-01: The URL namespace shall be 'https://about.me/robeastwood/fhir/ig/StructureDefinition' inv-dh-sdf-02: The version number is in semantic versioning format ('n.n.n'), with the major version number at least 1 |
| id | 1..1 | id | Logical id of this artifact | |
| implicitRules | 0..0 | |||
| language | 0..0 | |||
| contained | 0..0 | |||
| url | 1..1 | uri | Canonical identifier for this structure definition, represented as a URI (globally unique) | |
| identifier | 0..0 | |||
| version | 1..1 | string | Business version of the structure definition | |
| name | 1..1 | string | Name for this structure definition (computer friendly) | |
| title | 1..1 | string | Name for this structure definition (human friendly) | |
| experimental | 1..1 | boolean | For testing purposes, not real usage | |
| date | 1..1 | dateTime | Date last changed | |
| useContext | 0..0 | |||
| jurisdiction | 0..0 | |||
| purpose | 0..0 | |||
| copyright | 1..1 | markdown | Use and/or publishing restrictions | |
| keyword | 0..0 | |||
| fhirVersion | 1..1 | code | FHIR Version this StructureDefinition targets | |
| Documentation for this format | ||||
| Id | Grade | Path(s) | Details | Requirements |
| inv-dh-sdf-01 | error | StructureDefinition | The URL namespace shall be 'https://about.me/robeastwood/fhir/ig/StructureDefinition' : url.startsWith('https://about.me/robeastwood/fhir/ig/StructureDefinition/') | |
| inv-dh-sdf-02 | error | StructureDefinition | The version number is in semantic versioning format ('n.n.n'), with the major version number at least 1 : version.matches('^[0-9]{1,2}[.][0-9]{1,2}[.][0-9]{1,2}$') |
Key Elements View
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| StructureDefinition | C | 0..* | StructureDefinition | Structural Definition inv-dh-sdf-01: The URL namespace shall be 'https://about.me/robeastwood/fhir/ig/StructureDefinition' inv-dh-sdf-02: The version number is in semantic versioning format ('n.n.n'), with the major version number at least 1 |
| id | Σ | 1..1 | id | Logical id of this artifact |
| modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored |
| url | Σ | 1..1 | uri | Canonical identifier for this structure definition, represented as a URI (globally unique) |
| version | Σ | 1..1 | string | Business version of the structure definition |
| name | ΣC | 1..1 | string | Name for this structure definition (computer friendly) |
| title | Σ | 1..1 | string | Name for this structure definition (human friendly) |
| status | ?!Σ | 1..1 | code | draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact. |
| experimental | Σ | 1..1 | boolean | For testing purposes, not real usage |
| date | Σ | 1..1 | dateTime | Date last changed |
| copyright | 1..1 | markdown | Use and/or publishing restrictions | |
| fhirVersion | Σ | 1..1 | code | FHIR Version this StructureDefinition targets Binding: FHIRVersion (required): All published FHIR Versions. |
| 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. |
| Documentation for this format | ||||
| Path | Conformance | ValueSet |
| StructureDefinition.status | required | PublicationStatus |
| StructureDefinition.fhirVersion | required | FHIRVersion |
| StructureDefinition.kind | required | StructureDefinitionKind |
| StructureDefinition.type | extensible | FHIRDefinedType |
| Id | Grade | Path(s) | Details | Requirements |
| dom-2 | error | StructureDefinition | If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty() | |
| dom-3 | error | StructureDefinition | If 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-4 | error | StructureDefinition | If 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-5 | error | StructureDefinition | If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty() | |
| dom-6 | best practice | StructureDefinition | A resource should have narrative for robust management : text.`div`.exists() | |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) | |
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both : extension.exists() != value.exists() | |
| inv-dh-sdf-01 | error | StructureDefinition | The URL namespace shall be 'https://about.me/robeastwood/fhir/ig/StructureDefinition' : url.startsWith('https://about.me/robeastwood/fhir/ig/StructureDefinition/') | |
| inv-dh-sdf-02 | error | StructureDefinition | The version number is in semantic versioning format ('n.n.n'), with the major version number at least 1 : version.matches('^[0-9]{1,2}[.][0-9]{1,2}[.][0-9]{1,2}$') | |
| sdf-0 | warning | StructureDefinition | Name 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-1 | error | StructureDefinition | Element paths must be unique unless the structure is a constraint : derivation = 'constraint' or snapshot.element.select(path).isDistinct() | |
| sdf-15a | error | StructureDefinition | If 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-4 | error | StructureDefinition | If the structure is not abstract, then there SHALL be a baseDefinition : abstract = true or baseDefinition.exists() | Ensure that the base types are abstract |
| sdf-5 | error | StructureDefinition | If the structure defines an extension then the structure must have context information : type != 'Extension' or derivation = 'specialization' or (context.exists()) | |
| sdf-6 | error | StructureDefinition | A structure must have either a differential, or a snapshot (or both) : snapshot.exists() or differential.exists() | |
| sdf-9 | error | StructureDefinition | In 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-11 | error | StructureDefinition | If 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-14 | error | StructureDefinition | All element definitions must have an id : snapshot.element.all(id.exists()) and differential.element.all(id.exists()) | elements have id |
| sdf-15 | error | StructureDefinition | The 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-16 | error | StructureDefinition | All 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-17 | error | StructureDefinition | All 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-18 | error | StructureDefinition | Context Invariants can only be used for extensions : contextInvariant.exists() implies type = 'Extension' | contextInvariant |
| sdf-19 | error | StructureDefinition | FHIR 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-21 | error | StructureDefinition | Default values can only be specified on specializations : differential.element.defaultValue.exists() implies (derivation = 'specialization') | no default values on data types or resources |
| sdf-22 | error | StructureDefinition | FHIR 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-23 | error | StructureDefinition | No slice name on root : (snapshot | differential).element.all(path.contains('.').not() implies sliceName.empty()) | no sliceName on root |
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| StructureDefinition | C | 0..* | StructureDefinition | Structural Definition inv-dh-sdf-01: The URL namespace shall be 'https://about.me/robeastwood/fhir/ig/StructureDefinition' inv-dh-sdf-02: The version number is in semantic versioning format ('n.n.n'), with the major version number at least 1 |
| id | Σ | 1..1 | id | Logical id of this artifact |
| meta | Σ | 0..1 | Meta | Metadata about the resource |
| text | 0..1 | Narrative | Text summary of the resource, for human interpretation | |
| extension | 0..* | Extension | Additional content defined by implementations | |
| modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored |
| url | Σ | 1..1 | uri | Canonical identifier for this structure definition, represented as a URI (globally unique) |
| version | Σ | 1..1 | string | Business version of the structure definition |
| name | ΣC | 1..1 | string | Name for this structure definition (computer friendly) |
| title | Σ | 1..1 | string | Name for this structure definition (human friendly) |
| status | ?!Σ | 1..1 | code | draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact. |
| experimental | Σ | 1..1 | boolean | For testing purposes, not real usage |
| date | Σ | 1..1 | dateTime | Date last changed |
| publisher | Σ | 0..1 | string | Name of the publisher (organization or individual) |
| contact | Σ | 0..* | ContactDetail | Contact details for the publisher |
| description | 0..1 | markdown | Natural language description of the structure definition | |
| copyright | 1..1 | markdown | Use and/or publishing restrictions | |
| fhirVersion | Σ | 1..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 |
| 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 |
| 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) |
| differential | C | 0..1 | BackboneElement | Differential view of the structure |
| 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) | |
| Documentation for this format | ||||
| Path | Conformance | ValueSet |
| StructureDefinition.status | required | PublicationStatus |
| StructureDefinition.fhirVersion | required | FHIRVersion |
| StructureDefinition.kind | required | StructureDefinitionKind |
| StructureDefinition.context.type | required | ExtensionContextType |
| StructureDefinition.type | extensible | FHIRDefinedType |
| StructureDefinition.derivation | required | TypeDerivationRule |
| Id | Grade | Path(s) | Details | Requirements |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) | |
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both : extension.exists() != value.exists() | |
| sdf-2 | error | StructureDefinition.mapping | Must have at least a name or a uri (or both) : name.exists() or uri.exists() | |
| sdf-3 | error | StructureDefinition.snapshot | Each element definition in a snapshot must have a formal definition and cardinalities : element.all(definition.exists() and min.exists() and max.exists()) | |
| sdf-8 | error | StructureDefinition.snapshot | All 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-10 | error | StructureDefinition.snapshot.element | provide either a binding reference or a description (or both) : binding.empty() or binding.valueSet.exists() or binding.description.exists() | binding is required |
| sdf-20 | error | StructureDefinition.differential | No slicing on the root element : element.where(path.contains('.').not()).slicing.empty() | no slicing on root |
| sdf-8a | error | StructureDefinition.differential | 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 : (%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-8b | error | StructureDefinition.snapshot | All snapshot elements must have a base definition : element.all(base.exists()) |
This structure is derived from StructureDefinition
Other representations of profile: CSV, Excel, Schematron