FHIR Osiris Implementation Guide
1.1.0 - trial-implementation

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## Extension: ModalityAndTechnique - Detailed Descriptions

Draft as of 2025-04-03

Definitions for the modalityAndTechnique extension.

- Key Elements Table
- Differential Elements Table
- Snapshot Elements Table

Guidance on how to interpret the contents of this table can be found here

0. Extension
Définition | Modality And Technique Optional Extension Element - found in all resources.
Short | Modality And TechniqueOptional Extensions Element
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()`) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
2. Extension.extension
Définition | 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
Commentaires | 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 | 20..*
Type | Extension
Is Modifier | false
Résumé | 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`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
4. Extension.extension:radiotherapyModality
Nom de la slice | radiotherapyModality
Définition | Modality of the radiotherapy procedure. Dicom Tag (300A,00C6).
Short | ModalityAdditional content defined by implementations
Control | 10..1*
Type | Extension
Is Modifier | false
Must Support | true
Résumé | 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())
6. Extension.extension:radiotherapyModality.extension
Définition | 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
Commentaires | 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..0*
Type | Extension
Is Modifier | false
Résumé | 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: value @ url
8. Extension.extension:radiotherapyModality.url
Définition | Source of the definition for the extension code - a logical name or a URL.
Short | identifies the meaning of the extension
Commentaires | 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.
Résumé | false
Fixed Value | `radiotherapyModality`
10. Extension.extension:radiotherapyModality.value[x]
Définition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short | Value of extension
Control | 10..1
Binding | The codes SHALL be taken from For codes, see http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-modality-vs (required to `http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-modality-vs` )
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
Must Support | true
Résumé | false
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
12. Extension.extension:radiotherapyTechnique
Nom de la slice | radiotherapyTechnique
Définition | Technique of the radiotherapy procedure. Dicom Tag (300A,0009).
Short | TechniqueAdditional content defined by implementations
Control | 10..1*
Type | Extension
Is Modifier | false
Must Support | true
Résumé | 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())
14. Extension.extension:radiotherapyTechnique.extension
Définition | 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
Commentaires | 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..0*
Type | Extension
Is Modifier | false
Résumé | 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: value @ url
16. Extension.extension:radiotherapyTechnique.url
Définition | Source of the definition for the extension code - a logical name or a URL.
Short | identifies the meaning of the extension
Commentaires | 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.
Résumé | false
Fixed Value | `radiotherapyTechnique`
18. Extension.extension:radiotherapyTechnique.value[x]
Définition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short | Value of extension
Control | 10..1
Binding | The codes SHALL be taken from For codes, see http://hl7.org/fhir/us/mcode/ValueSet/mcode-teleradiotherapy-photon-beam-technique-vs (required to `http://hl7.org/fhir/us/mcode/ValueSet/mcode-teleradiotherapy-photon-beam-technique-vs` )
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
Must Support | true
Résumé | false
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
20. Extension.extension:radiotherapyTreatmentMachinePlanned
Nom de la slice | radiotherapyTreatmentMachinePlanned
Définition | Name of the processing machine used for the emission of the beam. Dicom Tag (300A,00B2)
Short | Name of the machine used for the emission of the beamAdditional content defined by implementations
Control | 0..1*
Type | Extension
Is Modifier | false
Must Support | true
Résumé | 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())
22. Extension.extension:radiotherapyTreatmentMachinePlanned.extension
Définition | 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
Commentaires | 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..0*
Type | Extension
Is Modifier | false
Résumé | 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: value @ url
24. Extension.extension:radiotherapyTreatmentMachinePlanned.url
Définition | Source of the definition for the extension code - a logical name or a URL.
Short | identifies the meaning of the extension
Commentaires | 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.
Résumé | false
Fixed Value | `radiotherapyTreatmentMachinePlanned`
26. Extension.extension:radiotherapyTreatmentMachinePlanned.value[x]
Définition | 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 | string, 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, 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
Must Support | true
Résumé | false
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
28. Extension.url
Définition | Source of the definition for the extension code - a logical name or a URL.
Short | identifies the meaning of the extension
Commentaires | 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.
Résumé | false
Fixed Value | `https://ig-osiris.cancer.fr/ig/osiris/StructureDefinition/modalityAndTechnique`
30. Extension.value[x]
Définition | 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
Résumé | false
Invariants | 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 found here

0. Extension
Définition | Modality And Technique
Short | Modality And Technique
2. Extension.extension
Control | 2..?
4. Extension.extension:radiotherapyModality
Nom de la slice | radiotherapyModality
Définition | Modality of the radiotherapy procedure. Dicom Tag (300A,00C6).
Short | Modality
Control | 1..1
Must Support | true
6. Extension.extension:radiotherapyModality.extension
Control | 0..0
8. Extension.extension:radiotherapyModality.url
Fixed Value | `radiotherapyModality`
10. Extension.extension:radiotherapyModality.value[x]
Control | 1..?
Binding | The codes SHALL be taken from http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-modality-vs (required to `http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-modality-vs` )
Type | CodeableConcept
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
Must Support | true
12. Extension.extension:radiotherapyTechnique
Nom de la slice | radiotherapyTechnique
Définition | Technique of the radiotherapy procedure. Dicom Tag (300A,0009).
Short | Technique
Control | 1..1
Must Support | true
14. Extension.extension:radiotherapyTechnique.extension
Control | 0..0
16. Extension.extension:radiotherapyTechnique.url
Fixed Value | `radiotherapyTechnique`
18. Extension.extension:radiotherapyTechnique.value[x]
Control | 1..?
Binding | The codes SHALL be taken from http://hl7.org/fhir/us/mcode/ValueSet/mcode-teleradiotherapy-photon-beam-technique-vs (required to `http://hl7.org/fhir/us/mcode/ValueSet/mcode-teleradiotherapy-photon-beam-technique-vs` )
Type | CodeableConcept
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
Must Support | true
20. Extension.extension:radiotherapyTreatmentMachinePlanned
Nom de la slice | radiotherapyTreatmentMachinePlanned
Définition | Name of the processing machine used for the emission of the beam. Dicom Tag (300A,00B2)
Short | Name of the machine used for the emission of the beam
Control | 0..1
Must Support | true
22. Extension.extension:radiotherapyTreatmentMachinePlanned.extension
Control | 0..0
24. Extension.extension:radiotherapyTreatmentMachinePlanned.url
Fixed Value | `radiotherapyTreatmentMachinePlanned`
26. Extension.extension:radiotherapyTreatmentMachinePlanned.value[x]
Type | string
[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
Must Support | true
28. Extension.url
Fixed Value | `https://ig-osiris.cancer.fr/ig/osiris/StructureDefinition/modalityAndTechnique`
30. Extension.value[x]
Control | 0..0

Guidance on how to interpret the contents of this table can be found here

0. Extension
Définition | Modality And Technique
Short | Modality And Technique
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
Définition | 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.
Résumé | false
4. Extension.extension
Définition | An Extension
Short | Extension
Control | 2..*
Type | Extension
Is Modifier | false
Résumé | 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: value @ url
6. Extension.extension:radiotherapyModality
Nom de la slice | radiotherapyModality
Définition | Modality of the radiotherapy procedure. Dicom Tag (300A,00C6).
Short | Modality
Control | 1..1
Type | Extension
Is Modifier | false
Must Support | true
Résumé | 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:radiotherapyModality.id
Définition | 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.
Résumé | false
10. Extension.extension:radiotherapyModality.extension
Définition | An Extension
Short | Extension
Control | 0..0
Type | Extension
Is Modifier | false
Résumé | 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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
12. Extension.extension:radiotherapyModality.url
Définition | Source of the definition for the extension code - a logical name or a URL.
Short | identifies the meaning of the extension
Commentaires | 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.
Résumé | false
Fixed Value | `radiotherapyModality`
14. Extension.extension:radiotherapyModality.value[x]
Définition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short | Value of extension
Control | 1..1
Binding | The codes SHALL be taken from http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-modality-vs (required to `http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-modality-vs` )
Type | CodeableConcept
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier | false
Must Support | true
Résumé | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
16. Extension.extension:radiotherapyTechnique
Nom de la slice | radiotherapyTechnique
Définition | Technique of the radiotherapy procedure. Dicom Tag (300A,0009).
Short | Technique
Control | 1..1
Type | Extension
Is Modifier | false
Must Support | true
Résumé | 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:radiotherapyTechnique.id
Définition | 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.
Résumé | false
20. Extension.extension:radiotherapyTechnique.extension
Définition | An Extension
Short | Extension
Control | 0..0
Type | Extension
Is Modifier | false
Résumé | 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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
22. Extension.extension:radiotherapyTechnique.url
Définition | Source of the definition for the extension code - a logical name or a URL.
Short | identifies the meaning of the extension
Commentaires | 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.
Résumé | false
Fixed Value | `radiotherapyTechnique`
24. Extension.extension:radiotherapyTechnique.value[x]
Définition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).
Short | Value of extension
Control | 1..1
Binding | The codes SHALL be taken from http://hl7.org/fhir/us/mcode/ValueSet/mcode-teleradiotherapy-photon-beam-technique-vs (required to `http://hl7.org/fhir/us/mcode/ValueSet/mcode-teleradiotherapy-photon-beam-technique-vs` )
Type | CodeableConcept
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier | false
Must Support | true
Résumé | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
26. Extension.extension:radiotherapyTreatmentMachinePlanned
Nom de la slice | radiotherapyTreatmentMachinePlanned
Définition | Name of the processing machine used for the emission of the beam. Dicom Tag (300A,00B2)
Short | Name of the machine used for the emission of the beam
Control | 0..1
Type | Extension
Is Modifier | false
Must Support | true
Résumé | 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()`)
28. Extension.extension:radiotherapyTreatmentMachinePlanned.id
Définition | 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.
Résumé | false
30. Extension.extension:radiotherapyTreatmentMachinePlanned.extension
Définition | An Extension
Short | Extension
Control | 0..0
Type | Extension
Is Modifier | false
Résumé | 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.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
32. Extension.extension:radiotherapyTreatmentMachinePlanned.url
Définition | Source of the definition for the extension code - a logical name or a URL.
Short | identifies the meaning of the extension
Commentaires | 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.
Résumé | false
Fixed Value | `radiotherapyTreatmentMachinePlanned`
34. Extension.extension:radiotherapyTreatmentMachinePlanned.value[x]
Définition | 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 | string
[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
Must Support | true
Résumé | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
36. Extension.url
Définition | Source of the definition for the extension code - a logical name or a URL.
Short | identifies the meaning of the extension
Commentaires | 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.
Résumé | false
Fixed Value | `https://ig-osiris.cancer.fr/ig/osiris/StructureDefinition/modalityAndTechnique`
38. Extension.value[x]
Définition | 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
Résumé | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)