FHIR Cross-Version Extensions package for FHIR R4 from FHIR R2
0.0.1-snapshot-2 - informative
FHIR Cross-Version Extensions package for FHIR R4 from FHIR R2
0.0.1-snapshot-2 - informative
FHIR Cross-Version Extensions package for FHIR R4 from FHIR R2 - Version 0.0.1-snapshot-2. See the Directory of published versions
| Page standards status: Informative | Maturity Level: 0 |
Definitions for the ext-R2-Observation.related extension.
Guidance on how to interpret the contents of this table can be foundhere
| 0. Extension | |
| Definition | A reference to another resource (usually another Observation but could also be a QuestionnaireAnswer) whose relationship is defined by the relationship type code. |
| Short | Resource related to this observation |
| Comments |
|
| Control | 0..* |
| 2. Extension.extension | |
| Control | 1..* |
| Slicing | This element introduces a set of slices on Extension.extension. The slices areUnordered and Closed, and can be differentiated using the following discriminators: |
| 4. Extension.extension:type | |
| Slice Name | type |
| Definition | A code specifying the kind of relationship that exists with the target resource. |
| Short | has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by |
| Comments |
|
| Control | 0..1 |
| 6. Extension.extension:type.url | |
| Control | 1..1 |
| Fixed Value | type |
| 8. Extension.extension:type.value[x] | |
| Definition | A code specifying the kind of relationship that exists with the target resource. |
| Short | has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by |
| Comments |
|
| Binding | The codes SHALL be taken from R2_observation_relationshiptypes_for_R4 (0.0.1-snapshot-2) (required to http://hl7.org/fhir/1.0/ValueSet/R2-observation-relationshiptypes-for-R4|0.0.1-snapshot-2)Codes specifying how two observations are related. |
| Type | code |
| [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:target | |
| Slice Name | target |
| Definition | A reference to the observation or QuestionnaireResponse resource that is related to this observation. |
| Short | Resource that is related to this one |
| Comments |
|
| Control | 1..1 |
| 12. Extension.extension:target.url | |
| Control | 1..1 |
| Fixed Value | target |
| 14. Extension.extension:target.value[x] | |
| Definition | A reference to the observation or QuestionnaireResponse resource that is related to this observation. |
| Short | Resource that is related to this one |
| Comments |
|
| Type | Reference |
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] |
| 16. Extension.url | |
| Control | 1..1 |
| Fixed Value | http://hl7.org/fhir/1.0/StructureDefinition/extension-Observation.related |
Guidance on how to interpret the contents of this table can be foundhere
| 0. Extension | |
| Definition | A reference to another resource (usually another Observation but could also be a QuestionnaireAnswer) whose relationship is defined by the relationship type code. Optional Extension Element - found in all resources. |
| Short | Resource related to this observationOptional Extensions Element |
| Comments |
|
| Control | 0..* 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 ClosedOpen, and can be differentiated using the following discriminators: |
| 4. Extension.extension:type | |
| Slice Name | type |
| Definition | A code specifying the kind of relationship that exists with the target resource. |
| Short | has-member | derived-from | sequel-to | replaces | qualified-by | interfered-byAdditional content defined by implementations |
| Comments |
|
| Control | 0..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())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:type.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 | type |
| 8. Extension.extension:type.value[x] | |
| Definition | A code specifying the kind of relationship that exists with the target resource. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). |
| Short | has-member | derived-from | sequel-to | replaces | qualified-by | interfered-byValue of extension |
| Comments |
|
| Control | 0..1 |
| Binding | The codes SHALL be taken from For codes, see R2_observation_relationshiptypes_for_R4 (0.0.1-snapshot-2) (required to http://hl7.org/fhir/1.0/ValueSet/R2-observation-relationshiptypes-for-R4|0.0.1-snapshot-2)Codes specifying how two observations are related. |
| Type | code, 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, 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 |
| 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:target | |
| Slice Name | target |
| Definition | A reference to the observation or QuestionnaireResponse resource that is related to this observation. |
| Short | Resource that is related to this oneAdditional content defined by implementations |
| Comments |
|
| Control | 10..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())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:target.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 | target |
| 14. Extension.extension:target.value[x] | |
| Definition | A reference to the observation or QuestionnaireResponse resource that is related to this observation. Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). |
| Short | Resource that is related to this oneValue of extension |
| Comments |
|
| Control | 0..1 |
| Type | Reference, 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())) |
| 16. 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/1.0/StructureDefinition/extension-Observation.related |
Guidance on how to interpret the contents of this table can be foundhere
| 0. Extension | |
| Definition | A reference to another resource (usually another Observation but could also be a QuestionnaireAnswer) whose relationship is defined by the relationship type code. |
| Short | Resource related to this observation |
| Comments |
|
| Control | 0..* 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 Closed, and can be differentiated using the following discriminators: |
| 6. Extension.extension:type | |
| Slice Name | type |
| Definition | A code specifying the kind of relationship that exists with the target resource. |
| Short | has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by |
| Comments |
|
| Control | 0..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()) |
| 8. Extension.extension:type.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:type.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:type.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 | type |
| 14. Extension.extension:type.value[x] | |
| Definition | A code specifying the kind of relationship that exists with the target resource. |
| Short | has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by |
| Comments |
|
| Control | 0..1 |
| Binding | The codes SHALL be taken from R2_observation_relationshiptypes_for_R4 (0.0.1-snapshot-2) (required to http://hl7.org/fhir/1.0/ValueSet/R2-observation-relationshiptypes-for-R4|0.0.1-snapshot-2)Codes specifying how two observations are related. |
| Type | code |
| [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:target | |
| Slice Name | target |
| Definition | A reference to the observation or QuestionnaireResponse resource that is related to this observation. |
| Short | Resource that is related to this one |
| Comments |
|
| Control | 1..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()) |
| 18. Extension.extension:target.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:target.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:target.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 | target |
| 24. Extension.extension:target.value[x] | |
| Definition | A reference to the observation or QuestionnaireResponse resource that is related to this observation. |
| Short | Resource that is related to this one |
| Comments |
|
| Control | 0..1 |
| Type | Reference |
| [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.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/1.0/StructureDefinition/extension-Observation.related |
| 28. 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..1 |
| 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 |
| [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())) |
IG © 2025+ FHIR Infrastructure. Package hl7.fhir.uv.xver-r2.r4#0.0.1-snapshot-2 based on FHIR 4.0.1. Generated 2025-09-13
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