Extensions for Using Data Elements from FHIR R5 in FHIR R4
0.1.0 - STU
Extensions for Using Data Elements from FHIR R5 in FHIR R4
0.1.0 - STU
Extensions for Using Data Elements from FHIR R5 in FHIR R4 - Downloaded Version null See the Directory of published versions
| Page standards status: Trial-use | Maturity Level: 0 |
Definitions for the ext-R5-Evidence.variableDefinition extension.
Guidance on how to interpret the contents of this table can be foundhere
| 0. Extension | |
| Definition | R5: Optional Extension Element - found in all resources. |
| Short | R5: Evidence variable such as population, exposure, or outcome (new)Optional Extensions Element |
| Comments | Element |
| Control | 10..* This element is affected by the following invariants: ele-1 |
| Is Modifier | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists())ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) |
| 2. Extension.extension | |
| Definition | An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. |
| Short | ExtensionAdditional content defined by implementations |
| Comments | There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. |
| Control | 10..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Alternate Names | extensions, user content |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists())ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) |
| Slicing | This element introduces a set of slices on Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 4. Extension.extension:description | |
| Slice Name | description |
| Definition | R5: |
| Short | R5: A text description or summary of the variable (new)Additional content defined by implementations |
| Comments | Element |
| Control | 0..1* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Requirements | Element |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists())ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) |
| 6. Extension.extension:description.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | description |
| 8. Extension.extension:description.value[x] | |
| Definition | A text description or summary of the variable. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). |
| Short | A text description or summary of the variableValue of extension |
| Control | 0..1 |
| Type | markdown, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Is Modifier | false |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 10. Extension.extension:note | |
| Slice Name | note |
| Definition | R5: |
| Short | R5: Footnotes and/or explanatory notes (new)Additional content defined by implementations |
| Comments | Element |
| Control | 0..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Requirements | Element |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists())ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) |
| 12. Extension.extension:note.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | note |
| 14. Extension.extension:note.value[x] | |
| Definition | Footnotes and/or explanatory notes. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). |
| Short | Footnotes and/or explanatory notesValue of extension |
| Control | 0..1 |
| Type | Annotation, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, ContactDetail, boolean, Expression, Signature, unsignedInt, time |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Is Modifier | false |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 16. Extension.extension:variableRole | |
| Slice Name | variableRole |
| Definition | R5: |
| Short | R5: population | subpopulation | exposure | referenceExposure | measuredVariable | confounder (new)Additional content defined by implementations |
| Comments | Element |
| Control | 10..1* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Requirements | Element |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists())ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) |
| 18. Extension.extension:variableRole.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | variableRole |
| 20. Extension.extension:variableRole.value[x] | |
| Definition | population | subpopulation | exposure | referenceExposure | measuredVariable | confounder. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). |
| Short | population | subpopulation | exposure | referenceExposure | measuredVariable | confounderValue of extension |
| Control | 10..1 |
| Binding | Unless not suitable, these codes SHALL be taken from For codes, see R5VariableRoleForR4 (0.1.0) (extensible to http://hl7.org/fhir/uv/xver/ValueSet/R5-variable-role-for-R4|0.1.0)The role that the assertion variable plays. |
| Type | CodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Is Modifier | false |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 22. Extension.extension:observed | |
| Slice Name | observed |
| Definition | R5: |
| Short | R5: Definition of the actual variable related to the statistic(s) (new)Additional content defined by implementations |
| Comments | Element |
| Control | 0..1* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Requirements | Element |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists())ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) |
| 24. Extension.extension:observed.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | observed |
| 26. Extension.extension:observed.value[x] | |
| Definition | Definition of the actual variable related to the statistic(s). Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). |
| Short | Definition of the actual variable related to the statistic(s)Value of extension |
| Control | 0..1 |
| Type | Reference(Cross-version Profile for R5.Group for use in FHIR R4, Group, Cross-version Profile for R5.EvidenceVariable for use in FHIR R4, EvidenceVariable), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Is Modifier | false |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 28. Extension.extension:intended | |
| Slice Name | intended |
| Definition | R5: |
| Short | R5: Definition of the intended variable related to the Evidence (new)Additional content defined by implementations |
| Comments | Element |
| Control | 0..1* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Requirements | Element |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists())ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) |
| 30. Extension.extension:intended.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | intended |
| 32. Extension.extension:intended.value[x] | |
| Definition | Definition of the intended variable related to the Evidence. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). |
| Short | Definition of the intended variable related to the EvidenceValue of extension |
| Control | 0..1 |
| Type | Reference(Cross-version Profile for R5.Group for use in FHIR R4, Group, Cross-version Profile for R5.EvidenceVariable for use in FHIR R4, EvidenceVariable), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Is Modifier | false |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 34. Extension.extension:directnessMatch | |
| Slice Name | directnessMatch |
| Definition | R5: |
| Short | R5: low | moderate | high | exact (new)Additional content defined by implementations |
| Comments | Element |
| Control | 0..1* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Requirements | Element |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists())ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) |
| 36. Extension.extension:directnessMatch.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | directnessMatch |
| 38. Extension.extension:directnessMatch.value[x] | |
| Definition | Indication of quality of match between intended variable to actual variable. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). |
| Short | low | moderate | high | exactValue of extension |
| Control | 0..1 |
| Binding | Unless not suitable, these codes SHALL be taken from For codes, see R5DirectnessForR4 (0.1.0) (extensible to http://hl7.org/fhir/uv/xver/ValueSet/R5-directness-for-R4|0.1.0)The quality of how direct the match is. |
| Type | CodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Is Modifier | false |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 40. Extension.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | http://hl7.org/fhir/5.0/StructureDefinition/extension-Evidence.variableDefinition |
| 42. Extension.value[x] | |
| Definition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). |
| Short | Value of extension |
| Control | 0..01 |
| Type | Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta |
| Is Modifier | false |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
Guidance on how to interpret the contents of this table can be foundhere
| 0. Extension | |
| Definition | R5: |
| Short | R5: Evidence variable such as population, exposure, or outcome (new) |
| Comments | Element |
| Control | 1..* |
| Is Modifier | false |
| 2. Extension.extension | |
| Control | 1..* |
| Slicing | This element introduces a set of slices on Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 4. Extension.extension:description | |
| Slice Name | description |
| Definition | R5: |
| Short | R5: A text description or summary of the variable (new) |
| Comments | Element |
| Control | 0..1 |
| Requirements | Element |
| 6. Extension.extension:description.url | |
| Control | 1..1 |
| Fixed Value | description |
| 8. Extension.extension:description.value[x] | |
| Definition | A text description or summary of the variable. |
| Short | A text description or summary of the variable |
| Control | 0..1 |
| Type | markdown |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 10. Extension.extension:note | |
| Slice Name | note |
| Definition | R5: |
| Short | R5: Footnotes and/or explanatory notes (new) |
| Comments | Element |
| Control | 0..* |
| Requirements | Element |
| 12. Extension.extension:note.url | |
| Control | 1..1 |
| Fixed Value | note |
| 14. Extension.extension:note.value[x] | |
| Definition | Footnotes and/or explanatory notes. |
| Short | Footnotes and/or explanatory notes |
| Control | 0..1 |
| Type | Annotation |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 16. Extension.extension:variableRole | |
| Slice Name | variableRole |
| Definition | R5: |
| Short | R5: population | subpopulation | exposure | referenceExposure | measuredVariable | confounder (new) |
| Comments | Element |
| Control | 1..1 |
| Requirements | Element |
| 18. Extension.extension:variableRole.url | |
| Control | 1..1 |
| Fixed Value | variableRole |
| 20. Extension.extension:variableRole.value[x] | |
| Definition | population | subpopulation | exposure | referenceExposure | measuredVariable | confounder. |
| Short | population | subpopulation | exposure | referenceExposure | measuredVariable | confounder |
| Control | 1..1 |
| Binding | Unless not suitable, these codes SHALL be taken from R5VariableRoleForR4 (0.1.0) (extensible to http://hl7.org/fhir/uv/xver/ValueSet/R5-variable-role-for-R4|0.1.0)The role that the assertion variable plays. |
| Type | CodeableConcept |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 22. Extension.extension:observed | |
| Slice Name | observed |
| Definition | R5: |
| Short | R5: Definition of the actual variable related to the statistic(s) (new) |
| Comments | Element |
| Control | 0..1 |
| Requirements | Element |
| 24. Extension.extension:observed.url | |
| Control | 1..1 |
| Fixed Value | observed |
| 26. Extension.extension:observed.value[x] | |
| Definition | Definition of the actual variable related to the statistic(s). |
| Short | Definition of the actual variable related to the statistic(s) |
| Control | 0..1 |
| Type | Reference(Cross-version Profile for R5.Group for use in FHIR R4, Group, Cross-version Profile for R5.EvidenceVariable for use in FHIR R4, EvidenceVariable) |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 28. Extension.extension:intended | |
| Slice Name | intended |
| Definition | R5: |
| Short | R5: Definition of the intended variable related to the Evidence (new) |
| Comments | Element |
| Control | 0..1 |
| Requirements | Element |
| 30. Extension.extension:intended.url | |
| Control | 1..1 |
| Fixed Value | intended |
| 32. Extension.extension:intended.value[x] | |
| Definition | Definition of the intended variable related to the Evidence. |
| Short | Definition of the intended variable related to the Evidence |
| Control | 0..1 |
| Type | Reference(Cross-version Profile for R5.Group for use in FHIR R4, Group, Cross-version Profile for R5.EvidenceVariable for use in FHIR R4, EvidenceVariable) |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 34. Extension.extension:directnessMatch | |
| Slice Name | directnessMatch |
| Definition | R5: |
| Short | R5: low | moderate | high | exact (new) |
| Comments | Element |
| Control | 0..1 |
| Requirements | Element |
| 36. Extension.extension:directnessMatch.url | |
| Control | 1..1 |
| Fixed Value | directnessMatch |
| 38. Extension.extension:directnessMatch.value[x] | |
| Definition | Indication of quality of match between intended variable to actual variable. |
| Short | low | moderate | high | exact |
| Control | 0..1 |
| Binding | Unless not suitable, these codes SHALL be taken from R5DirectnessForR4 (0.1.0) (extensible to http://hl7.org/fhir/uv/xver/ValueSet/R5-directness-for-R4|0.1.0)The quality of how direct the match is. |
| Type | CodeableConcept |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 40. Extension.url | |
| Control | 1..1 |
| Fixed Value | http://hl7.org/fhir/5.0/StructureDefinition/extension-Evidence.variableDefinition |
| 42. Extension.value[x] | |
| Control | 0..0 |
Guidance on how to interpret the contents of this table can be foundhere
| 0. Extension | |
| Definition | R5: |
| Short | R5: Evidence variable such as population, exposure, or outcome (new) |
| Comments | Element |
| Control | 1..* This element is affected by the following invariants: ele-1 |
| Is Modifier | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| 2. Extension.id | |
| Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. |
| Short | Unique id for inter-element referencing |
| Control | 0..1 |
| Type | string |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| 4. Extension.extension | |
| Definition | An Extension |
| Short | Extension |
| Control | 1..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| Slicing | This element introduces a set of slices on Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 6. Extension.extension:description | |
| Slice Name | description |
| Definition | R5: |
| Short | R5: A text description or summary of the variable (new) |
| Comments | Element |
| Control | 0..1 |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Requirements | Element |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| 8. Extension.extension:description.id | |
| Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. |
| Short | Unique id for inter-element referencing |
| Control | 0..1 |
| Type | string |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| 10. Extension.extension:description.extension | |
| Definition | May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. |
| Short | Additional content defined by implementations |
| Comments | There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Alternate Names | extensions, user content |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 12. Extension.extension:description.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | description |
| 14. Extension.extension:description.value[x] | |
| Definition | A text description or summary of the variable. |
| Short | A text description or summary of the variable |
| Control | 0..1 |
| Type | markdown |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Is Modifier | false |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 16. Extension.extension:note | |
| Slice Name | note |
| Definition | R5: |
| Short | R5: Footnotes and/or explanatory notes (new) |
| Comments | Element |
| Control | 0..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Requirements | Element |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| 18. Extension.extension:note.id | |
| Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. |
| Short | Unique id for inter-element referencing |
| Control | 0..1 |
| Type | string |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| 20. Extension.extension:note.extension | |
| Definition | May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. |
| Short | Additional content defined by implementations |
| Comments | There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Alternate Names | extensions, user content |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 22. Extension.extension:note.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | note |
| 24. Extension.extension:note.value[x] | |
| Definition | Footnotes and/or explanatory notes. |
| Short | Footnotes and/or explanatory notes |
| Control | 0..1 |
| Type | Annotation |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Is Modifier | false |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 26. Extension.extension:variableRole | |
| Slice Name | variableRole |
| Definition | R5: |
| Short | R5: population | subpopulation | exposure | referenceExposure | measuredVariable | confounder (new) |
| Comments | Element |
| Control | 1..1 |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Requirements | Element |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| 28. Extension.extension:variableRole.id | |
| Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. |
| Short | Unique id for inter-element referencing |
| Control | 0..1 |
| Type | string |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| 30. Extension.extension:variableRole.extension | |
| Definition | May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. |
| Short | Additional content defined by implementations |
| Comments | There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Alternate Names | extensions, user content |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 32. Extension.extension:variableRole.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | variableRole |
| 34. Extension.extension:variableRole.value[x] | |
| Definition | population | subpopulation | exposure | referenceExposure | measuredVariable | confounder. |
| Short | population | subpopulation | exposure | referenceExposure | measuredVariable | confounder |
| Control | 1..1 |
| Binding | Unless not suitable, these codes SHALL be taken from R5VariableRoleForR4 (0.1.0) (extensible to http://hl7.org/fhir/uv/xver/ValueSet/R5-variable-role-for-R4|0.1.0)The role that the assertion variable plays. |
| Type | CodeableConcept |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Is Modifier | false |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 36. Extension.extension:observed | |
| Slice Name | observed |
| Definition | R5: |
| Short | R5: Definition of the actual variable related to the statistic(s) (new) |
| Comments | Element |
| Control | 0..1 |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Requirements | Element |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| 38. Extension.extension:observed.id | |
| Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. |
| Short | Unique id for inter-element referencing |
| Control | 0..1 |
| Type | string |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| 40. Extension.extension:observed.extension | |
| Definition | May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. |
| Short | Additional content defined by implementations |
| Comments | There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Alternate Names | extensions, user content |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 42. Extension.extension:observed.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | observed |
| 44. Extension.extension:observed.value[x] | |
| Definition | Definition of the actual variable related to the statistic(s). |
| Short | Definition of the actual variable related to the statistic(s) |
| Control | 0..1 |
| Type | Reference(Cross-version Profile for R5.Group for use in FHIR R4, Group, Cross-version Profile for R5.EvidenceVariable for use in FHIR R4, EvidenceVariable) |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Is Modifier | false |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 46. Extension.extension:intended | |
| Slice Name | intended |
| Definition | R5: |
| Short | R5: Definition of the intended variable related to the Evidence (new) |
| Comments | Element |
| Control | 0..1 |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Requirements | Element |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| 48. Extension.extension:intended.id | |
| Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. |
| Short | Unique id for inter-element referencing |
| Control | 0..1 |
| Type | string |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| 50. Extension.extension:intended.extension | |
| Definition | May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. |
| Short | Additional content defined by implementations |
| Comments | There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Alternate Names | extensions, user content |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 52. Extension.extension:intended.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | intended |
| 54. Extension.extension:intended.value[x] | |
| Definition | Definition of the intended variable related to the Evidence. |
| Short | Definition of the intended variable related to the Evidence |
| Control | 0..1 |
| Type | Reference(Cross-version Profile for R5.Group for use in FHIR R4, Group, Cross-version Profile for R5.EvidenceVariable for use in FHIR R4, EvidenceVariable) |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Is Modifier | false |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 56. Extension.extension:directnessMatch | |
| Slice Name | directnessMatch |
| Definition | R5: |
| Short | R5: low | moderate | high | exact (new) |
| Comments | Element |
| Control | 0..1 |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Requirements | Element |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| 58. Extension.extension:directnessMatch.id | |
| Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. |
| Short | Unique id for inter-element referencing |
| Control | 0..1 |
| Type | string |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| 60. Extension.extension:directnessMatch.extension | |
| Definition | May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. |
| Short | Additional content defined by implementations |
| Comments | There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Alternate Names | extensions, user content |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 62. Extension.extension:directnessMatch.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | directnessMatch |
| 64. Extension.extension:directnessMatch.value[x] | |
| Definition | Indication of quality of match between intended variable to actual variable. |
| Short | low | moderate | high | exact |
| Control | 0..1 |
| Binding | Unless not suitable, these codes SHALL be taken from R5DirectnessForR4 (0.1.0) (extensible to http://hl7.org/fhir/uv/xver/ValueSet/R5-directness-for-R4|0.1.0)The quality of how direct the match is. |
| Type | CodeableConcept |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| Is Modifier | false |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 66. Extension.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Short | identifies the meaning of the extension |
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| Fixed Value | http://hl7.org/fhir/5.0/StructureDefinition/extension-Evidence.variableDefinition |
| 68. Extension.value[x] | |
| Definition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). |
| Short | Value of extension |
| Control | 0..0 |
| Type | Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta |
| Is Modifier | false |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| Summary | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
IG © 2025+ FHIR Infrastructure. Package hl7.fhir.uv.xver-r5.r4#0.1.0 based on FHIR 4.0.1. Generated 2026-03-20
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