HL7® FHIR® Te Aho o Te Kahu, Cancer Control Agency Implementation Guide
0.1.0 - CI Build

HL7® FHIR® Te Aho o Te Kahu, Cancer Control Agency Implementation Guide, published by Te Aho o Te Kahu, Cancer Control Agency. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7NZ/cca/ and changes regularly. See the Directory of published versions

## Resource Profile: CcaActivityDefinition - Detailed Descriptions

Active as of 2026-05-21

Definitions for the CcaActivityDefinition resource profile.

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

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

0. ActivityDefinition
Definition | This resource allows for the definition of some activity to be performed, independent of a particular patient, practitioner, or other performance context.
Short | The definition of a specific activity to be taken, independent of any particular patient or context
Control | 0..*
Is Modifier | false
Summary | false
Invariants | adf-0: Name should be usable as an identifier for the module by machine processing applications such as code generation (`name.matches('[A-Z]([A-Za-z0-9_]){0,254}')`) dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty()) dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()) dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()) dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty()) dom-6: A resource should have narrative for robust management (text.`div`.exists()) adf-0: Name should be usable as an identifier for the module by machine processing applications such as code generation (name.matches('[A-Z]([A-Za-z0-9_]){0,254}'))
2. ActivityDefinition.implicitRules
Definition | A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.
Short | A set of rules under which this content was created
Comments | Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.
Control | 0..1
Type | uri
Is Modifier | true because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
4. ActivityDefinition.extension
Definition | An Extension May be used to represent additional information that is not part of the basic definition of the resource. 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 | 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 `ActivityDefinition.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
6. ActivityDefinition.extension:location-medication-collection
Slice Name | location-medication-collection
Definition | The physical Location where the medication can be collection prior to collection
Short | Extension
Control | 0..1 This element is affected by the following invariants: ele-1
Type | Extension(LocationMedicationCollection) (Extension Type: Choice of: CodeableConcept, Reference(Location))
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()`) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
8. ActivityDefinition.extension:location-administration
Slice Name | location-administration
Definition | The physical Location where the medication administration occurs (eg home or clinic)
Short | Extension
Control | 0..1 This element is affected by the following invariants: ele-1
Type | Extension(LocationAdministration) (Extension Type: Choice of: CodeableConcept, Reference(Location))
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()`) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
10. ActivityDefinition.extension:off-label
Slice Name | off-label
Definition | Indicates that the medication is being used for a purpose for which it has not been specifically approved
Short | Off label
Control | 0..1 This element is affected by the following invariants: ele-1
Type | Extension(Off label) (Extension Type: boolean)
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()`) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
12. ActivityDefinition.modifierExtension
Definition | May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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 is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Short | Extensions that cannot be ignored
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 | true because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
Summary | false
Requirements | Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.
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())
14. ActivityDefinition.identifier
Definition | A formal identifier that is used to identify this activity definition when it is represented in other formats, or referenced in a specification, model, design or an instance.
Short | Additional identifier for the activity definition
Comments | Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, and can then identify this activity definition outside of FHIR, where it is not possible to use the logical URI.
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 0..0*
Type | Identifier
Is Modifier | false
Summary | true
Requirements | Allows externally provided and/or usable business identifiers to be easily associated with the module.
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
16. ActivityDefinition.status
Definition | The status of this activity definition. Enables tracking the life-cycle of the content.
Short | draft | active | retired | unknown
Comments | Allows filtering of activity definitions that are appropriate for use versus not.
Control | 1..1
Binding | The codes SHALL be taken from PublicationStatus http://hl7.org/fhir/ValueSet/publication-status|4.0.1 (required to `http://hl7.org/fhir/ValueSet/publication-status|4.0.1` ) The lifecycle status of an artifact.
Type | code
Is Modifier | true because This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
18. ActivityDefinition.experimental
Definition | A Boolean value to indicate that this activity definition is authored for testing purposes (or education/evaluation/marketing) and is not intended to be used for genuine usage.
Short | For testing purposes, not real usage
Comments | Allows filtering of activity definitions that are appropriate for use versus not.
Control | 0..01
Type | boolean
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Enables experimental content to be developed following the same lifecycle that would be used for a production-level activity definition.
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
20. ActivityDefinition.subject[x]
Definition | A code or group definition that describes the intended subject of the activity being defined.
Short | Type of individual the activity definition is intended for
Control | 0..01
Binding | Unless not suitable, these codes SHALL be taken from SubjectType http://hl7.org/fhir/ValueSet/subject-type|4.0.1 (extensible to `http://hl7.org/fhir/ValueSet/subject-type|4.0.1` ) The possible types of subjects for an activity (E.g. Patient, Practitioner, Organization, Location, etc.).
Type | Choice of: CodeableConcept, Reference(Group)
Is Modifier | false
Summary | false
Meaning if Missing | Patient
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
22. ActivityDefinition.useContext
Definition | The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate activity definition instances.
Short | The context that the content is intended to support
Comments | When multiple useContexts are specified, there is no expectation that all or any of the contexts apply.
Control | 0..0*
Type | UsageContext
Is Modifier | false
Summary | true
Requirements | Assist in searching for appropriate content.
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
24. ActivityDefinition.approvalDate
Definition | The date on which the resource content was approved by the publisher. Approval happens once when the content is officially approved for usage.
Short | When the activity definition was approved by publisher
Comments | The 'date' element may be more recent than the approval date because of minor changes or editorial corrections.
Control | 0..01
Type | date
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()))
26. ActivityDefinition.lastReviewDate
Definition | The date on which the resource content was last reviewed. Review happens periodically after approval but does not change the original approval date.
Short | When the activity definition was last reviewed
Comments | If specified, this date follows the original approval date.
Control | 0..01
Type | date
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Requirements | Gives a sense of how "current" the content is. Resources that have not been reviewed in a long time may have a risk of being less appropriate/relevant.
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
28. ActivityDefinition.topic
Definition | Descriptive topics related to the content of the activity. Topics provide a high-level categorization of the activity that can be useful for filtering and searching.
Short | E.g. Education, Treatment, Assessment, etc.
Control | 0..0*
Binding | For example codes, see DefinitionTopic http://hl7.org/fhir/ValueSet/definition-topic|4.0.1 (example to `http://hl7.org/fhir/ValueSet/definition-topic|4.0.1` ) High-level categorization of the definition, used for searching, sorting, and filtering.
Type | CodeableConcept
Is Modifier | false
Summary | false
Requirements | Repositories must be able to determine how to categorize the activity definition so that it can be found by topical searches.
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
30. ActivityDefinition.author
Definition | An individiual or organization primarily involved in the creation and maintenance of the content.
Short | Who authored the content
Control | 0..0*
Type | ContactDetail
Is Modifier | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
32. ActivityDefinition.editor
Definition | An individual or organization primarily responsible for internal coherence of the content.
Short | Who edited the content
Control | 0..0*
Type | ContactDetail
Is Modifier | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
34. ActivityDefinition.reviewer
Definition | An individual or organization primarily responsible for review of some aspect of the content.
Short | Who reviewed the content
Control | 0..0*
Type | ContactDetail
Is Modifier | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
36. ActivityDefinition.library
Definition | A reference to a Library resource containing any formal logic used by the activity definition.
Short | Logic used by the activity definition
Control | 0..0*
Type | canonical(Library)
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()))
38. ActivityDefinition.priority
Definition | Indicates how quickly the activity should be addressed with respect to other requests.
Short | routine | urgent | asap | stat
Control | 0..01
Binding | The codes SHALL be taken from RequestPriority http://hl7.org/fhir/ValueSet/request-priority|4.0.1 (required to `http://hl7.org/fhir/ValueSet/request-priority|4.0.1` ) Identifies the level of importance to be assigned to actioning the request.
Type | code
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()))
40. ActivityDefinition.doNotPerform
Definition | Set this to true if the definition is to indicate that a particular activity should NOT be performed. If true, this element should be interpreted to reinforce a negative coding. For example NPO as a code with a doNotPerform of true would still indicate to NOT perform the action.
Short | True if the activity should not be performed
Comments | This element is not intended to be used to communicate a decision support response to cancel an order in progress. That should be done with the "remove" type of a PlanDefinition or RequestGroup.
Control | 0..01
Type | boolean
Is Modifier | true because If true this element negates the specified action. For Example, instead of a request for a procedure, it is a request for the procedure to not occur.
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
42. ActivityDefinition.timing[x]
Definition | The period, timing or frequency upon which the described activity is to occur.
Short | When activity is to occur
Control | 0..01
Type | Choice of: Timing, dateTime, Age, Period, Range, Duration
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Requirements | Allows prompting for activities and detection of missed planned activities.
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
44. ActivityDefinition.specimenRequirement
Definition | Defines specimen requirements for the action to be performed, such as required specimens for a lab test.
Short | What specimens are required to perform this action
Control | 0..0*
Type | Reference(SpecimenDefinition)
Is Modifier | false
Summary | false
Requirements | Needed to represent lab order definitions.
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
46. ActivityDefinition.observationRequirement
Definition | Defines observation requirements for the action to be performed, such as body weight or surface area.
Short | What observations are required to perform this action
Control | 0..0*
Type | Reference(ObservationDefinition)
Is Modifier | false
Summary | false
Requirements | Needed to represent observation definitions.
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
48. ActivityDefinition.observationResultRequirement
Definition | Defines the observations that are expected to be produced by the action.
Short | What observations must be produced by this action
Control | 0..0*
Type | Reference(ObservationDefinition)
Is Modifier | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
50. ActivityDefinition.transform
Definition | A reference to a StructureMap resource that defines a transform that can be executed to produce the intent resource using the ActivityDefinition instance as the input.
Short | Transform to apply the template
Comments | Note that if both a transform and dynamic values are specified, the dynamic values will be applied to the result of the transform.
Control | 0..01
Type | canonical(StructureMap)
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()))
52. ActivityDefinition.dynamicValue
Definition | Dynamic values that will be evaluated to produce values for elements of the resulting resource. For example, if the dosage of a medication must be computed based on the patient's weight, a dynamic value would be used to specify an expression that calculated the weight, and the path on the request resource that would contain the result.
Short | Dynamic aspects of the definition
Comments | Dynamic values are applied in the order in which they are defined in the ActivityDefinition. Note that if both a transform and dynamic values are specified, the dynamic values will be applied to the result of the transform.
Control | 0..0*
Type | BackboneElement
Is Modifier | false
Summary | 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 foundhere

0. ActivityDefinition
2. ActivityDefinition.extension
Slicing | This element introduces a set of slices on `ActivityDefinition.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
4. ActivityDefinition.extension:location-medication-collection
Slice Name | location-medication-collection
Control | 0..1
Type | Extension(LocationMedicationCollection) (Extension Type: Choice of: CodeableConcept, Reference(Location))
6. ActivityDefinition.extension:location-administration
Slice Name | location-administration
Control | 0..1
Type | Extension(LocationAdministration) (Extension Type: Choice of: CodeableConcept, Reference(Location))
8. ActivityDefinition.extension:off-label
Slice Name | off-label
Control | 0..1
Type | Extension(Off label) (Extension Type: boolean)
10. ActivityDefinition.identifier
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 0..0
12. ActivityDefinition.experimental
Control | 0..0
14. ActivityDefinition.subject[x]
Control | 0..0
16. ActivityDefinition.useContext
Control | 0..0
18. ActivityDefinition.approvalDate
Control | 0..0
20. ActivityDefinition.lastReviewDate
Control | 0..0
22. ActivityDefinition.topic
Control | 0..0
24. ActivityDefinition.author
Control | 0..0
26. ActivityDefinition.editor
Control | 0..0
28. ActivityDefinition.reviewer
Control | 0..0
30. ActivityDefinition.library
Control | 0..0
32. ActivityDefinition.priority
Control | 0..0
34. ActivityDefinition.doNotPerform
Control | 0..0
36. ActivityDefinition.timing[x]
Control | 0..0
38. ActivityDefinition.specimenRequirement
Control | 0..0
40. ActivityDefinition.observationRequirement
Control | 0..0
42. ActivityDefinition.observationResultRequirement
Control | 0..0
44. ActivityDefinition.transform
Control | 0..0
46. ActivityDefinition.dynamicValue
Control | 0..0

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

0. ActivityDefinition
Definition | This resource allows for the definition of some activity to be performed, independent of a particular patient, practitioner, or other performance context.
Short | The definition of a specific activity to be taken, independent of any particular patient or context
Control | 0..*
Is Modifier | false
Summary | false
Invariants | adf-0: Name should be usable as an identifier for the module by machine processing applications such as code generation (`name.matches('[A-Z]([A-Za-z0-9_]){0,254}')`) dom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (`contained.contained.empty()`) dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (`contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()`) dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (`contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()`) dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (`contained.meta.security.empty()`) dom-6: A resource should have narrative for robust management (`text.`div`.exists()`)
2. ActivityDefinition.id
Definition | The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
Short | Logical id of this artifact
Comments | The only time that a resource does not have an id is when it is being submitted to the server using a create operation.
Control | 0..1
Type | id
Is Modifier | false
Summary | true
4. ActivityDefinition.meta
Definition | The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.
Short | Metadata about the resource
Control | 0..1
Type | Meta
Is Modifier | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
6. ActivityDefinition.implicitRules
Definition | A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.
Short | A set of rules under which this content was created
Comments | Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.
Control | 0..1
Type | uri
Is Modifier | true because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
8. ActivityDefinition.language
Definition | The base language in which the resource is written.
Short | Language of the resource content
Comments | Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).
Control | 0..1
Binding | The codes SHOULD be taken from CommonLanguages (preferred to `http://hl7.org/fhir/ValueSet/languages|4.0.1` ) A human language.
Additional Bindings | Purpose
AllLanguages | Max Binding
Type | code
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())`)
10. ActivityDefinition.text
Definition | A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.
Short | Text summary of the resource, for human interpretation
Comments | Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.
Control | 0..1
Type | Narrative
Is Modifier | false
Summary | false
Alternate Names | narrative, html, xhtml, display
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
12. ActivityDefinition.contained
Definition | These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.
Short | Contained, inline Resources
Comments | This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.
Control | 0..*
Type | Resource
Is Modifier | false
Summary | false
Alternate Names | inline resources, anonymous resources, contained resources
14. ActivityDefinition.extension
Definition | An Extension
Short | Extension
Control | 0..*
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 `ActivityDefinition.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
16. ActivityDefinition.extension:location-medication-collection
Slice Name | location-medication-collection
Definition | The physical Location where the medication can be collection prior to collection
Short | Extension
Control | 0..1 This element is affected by the following invariants: ele-1
Type | Extension(LocationMedicationCollection) (Extension Type: Choice of: CodeableConcept, Reference(Location))
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. ActivityDefinition.extension:location-administration
Slice Name | location-administration
Definition | The physical Location where the medication administration occurs (eg home or clinic)
Short | Extension
Control | 0..1 This element is affected by the following invariants: ele-1
Type | Extension(LocationAdministration) (Extension Type: Choice of: CodeableConcept, Reference(Location))
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()`)
20. ActivityDefinition.extension:off-label
Slice Name | off-label
Definition | Indicates that the medication is being used for a purpose for which it has not been specifically approved
Short | Off label
Control | 0..1 This element is affected by the following invariants: ele-1
Type | Extension(Off label) (Extension Type: boolean)
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()`)
22. ActivityDefinition.modifierExtension
Definition | May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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 is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Short | Extensions that cannot be ignored
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 | true because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
Summary | false
Requirements | Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.
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()`)
24. ActivityDefinition.url
Definition | An absolute URI that is used to identify this activity definition when it is referenced in a specification, model, design or an instance; also called its canonical identifier. This SHOULD be globally unique and SHOULD be a literal address at which at which an authoritative instance of this activity definition is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the activity definition is stored on different servers.
Short | Canonical identifier for this activity definition, represented as a URI (globally unique)
Comments | Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred. Multiple instances may share the same URL if they have a distinct version. The determination of when to create a new version of a resource (same url, new version) vs. defining a new artifact is up to the author. Considerations for making this decision are found in Technical and Business Versions. In some cases, the resource can no longer be found at the stated url, but the url itself cannot change. Implementations can use the meta.source element to indicate where the current master source of the resource can be found.
Control | 0..1
Type | uri
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Allows the activity definition to be referenced by a single globally unique identifier.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
26. ActivityDefinition.identifier
Definition | A formal identifier that is used to identify this activity definition when it is represented in other formats, or referenced in a specification, model, design or an instance.
Short | Additional identifier for the activity definition
Comments | Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, and can then identify this activity definition outside of FHIR, where it is not possible to use the logical URI.
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 0..0
Type | Identifier
Is Modifier | false
Summary | true
Requirements | Allows externally provided and/or usable business identifiers to be easily associated with the module.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
28. ActivityDefinition.version
Definition | The identifier that is used to identify this version of the activity definition when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the activity definition author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence. To provide a version consistent with the Decision Support Service specification, use the format Major.Minor.Revision (e.g. 1.0.0). For more information on versioning knowledge assets, refer to the Decision Support Service specification. Note that a version is required for non-experimental active assets.
Short | Business version of the activity definition
Comments | There may be different activity definition instances that have the same identifier but different versions. The version can be appended to the url in a reference to allow a reference to a particular business version of the activity definition with the format [url]|[version].
Note | This is a business version Id, not a resource version Id (see discussion)
Control | 0..1
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
30. ActivityDefinition.name
Definition | A natural language name identifying the activity definition. This name should be usable as an identifier for the module by machine processing applications such as code generation.
Short | Name for this activity definition (computer friendly)
Comments | The name is not expected to be globally unique. The name should be a simple alphanumeric type name to ensure that it is machine-processing friendly.
Control | 0..1 This element is affected by the following invariants: inv-0
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Support human navigation and code generation.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
32. ActivityDefinition.title
Definition | A short, descriptive, user-friendly title for the activity definition.
Short | Name for this activity definition (human friendly)
Comments | This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc.
Control | 0..1
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
34. ActivityDefinition.subtitle
Definition | An explanatory or alternate title for the activity definition giving additional information about its content.
Short | Subordinate title of the activity definition
Control | 0..1
Type | string
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())`)
36. ActivityDefinition.status
Definition | The status of this activity definition. Enables tracking the life-cycle of the content.
Short | draft | active | retired | unknown
Comments | Allows filtering of activity definitions that are appropriate for use versus not.
Control | 1..1
Binding | The codes SHALL be taken from PublicationStatus (required to `http://hl7.org/fhir/ValueSet/publication-status|4.0.1` ) The lifecycle status of an artifact.
Type | code
Is Modifier | true because This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
38. ActivityDefinition.experimental
Definition | A Boolean value to indicate that this activity definition is authored for testing purposes (or education/evaluation/marketing) and is not intended to be used for genuine usage.
Short | For testing purposes, not real usage
Comments | Allows filtering of activity definitions that are appropriate for use versus not.
Control | 0..0
Type | boolean
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Enables experimental content to be developed following the same lifecycle that would be used for a production-level activity definition.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
40. ActivityDefinition.subject[x]
Definition | A code or group definition that describes the intended subject of the activity being defined.
Short | Type of individual the activity definition is intended for
Control | 0..0
Binding | Unless not suitable, these codes SHALL be taken from SubjectType (extensible to `http://hl7.org/fhir/ValueSet/subject-type|4.0.1` ) The possible types of subjects for an activity (E.g. Patient, Practitioner, Organization, Location, etc.).
Type | Choice of: CodeableConcept, Reference(Group)
Is Modifier | false
Summary | false
Meaning if Missing | Patient
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
42. ActivityDefinition.date
Definition | The date (and optionally time) when the activity definition was published. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the activity definition changes.
Short | Date last changed
Comments | Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the activity definition. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.
Control | 0..1
Type | dateTime
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Alternate Names | Revision Date
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
44. ActivityDefinition.publisher
Definition | The name of the organization or individual that published the activity definition.
Short | Name of the publisher (organization or individual)
Comments | Usually an organization but may be an individual. The publisher (or steward) of the activity definition is the organization or individual primarily responsible for the maintenance and upkeep of the activity definition. This is not necessarily the same individual or organization that developed and initially authored the content. The publisher is the primary point of contact for questions or issues with the activity definition. This item SHOULD be populated unless the information is available from context.
Control | 0..1
Type | string
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Helps establish the "authority/credibility" of the activity definition. May also allow for contact.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
46. ActivityDefinition.contact
Definition | Contact details to assist a user in finding and communicating with the publisher.
Short | Contact details for the publisher
Comments | May be a web site, an email address, a telephone number, etc.
Control | 0..*
Type | ContactDetail
Is Modifier | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
48. ActivityDefinition.description
Definition | A free text natural language description of the activity definition from a consumer's perspective.
Short | Natural language description of the activity definition
Comments | This description can be used to capture details such as why the activity definition was built, comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the activity definition as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context (e.g. the language of the activity definition is presumed to be the predominant language in the place the activity definition was created).
Control | 0..1
Type | markdown
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
50. ActivityDefinition.useContext
Definition | The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate activity definition instances.
Short | The context that the content is intended to support
Comments | When multiple useContexts are specified, there is no expectation that all or any of the contexts apply.
Control | 0..0
Type | UsageContext
Is Modifier | false
Summary | true
Requirements | Assist in searching for appropriate content.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
52. ActivityDefinition.jurisdiction
Definition | A legal or geographic region in which the activity definition is intended to be used.
Short | Intended jurisdiction for activity definition (if applicable)
Comments | It may be possible for the activity definition to be used in jurisdictions other than those for which it was originally designed or intended.
Control | 0..*
Binding | Unless not suitable, these codes SHALL be taken from Jurisdiction ValueSet (extensible to `http://hl7.org/fhir/ValueSet/jurisdiction|4.0.1` ) Countries and regions within which this artifact is targeted for use.
Type | CodeableConcept
Is Modifier | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
54. ActivityDefinition.purpose
Definition | Explanation of why this activity definition is needed and why it has been designed as it has.
Short | Why this activity definition is defined
Comments | This element does not describe the usage of the activity definition. Instead, it provides traceability of ''why'' the resource is either needed or ''why'' it is defined as it is. This may be used to point to source materials or specifications that drove the structure of this activity definition.
Control | 0..1
Type | markdown
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())`)
56. ActivityDefinition.usage
Definition | A detailed description of how the activity definition is used from a clinical perspective.
Short | Describes the clinical usage of the activity definition
Control | 0..1
Type | string
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())`)
58. ActivityDefinition.copyright
Definition | A copyright statement relating to the activity definition and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the activity definition.
Short | Use and/or publishing restrictions
Control | 0..1
Type | markdown
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Requirements | Consumers must be able to determine any legal restrictions on the use of the activity definition and/or its content.
Alternate Names | License, Restrictions
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
60. ActivityDefinition.approvalDate
Definition | The date on which the resource content was approved by the publisher. Approval happens once when the content is officially approved for usage.
Short | When the activity definition was approved by publisher
Comments | The 'date' element may be more recent than the approval date because of minor changes or editorial corrections.
Control | 0..0
Type | date
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())`)
62. ActivityDefinition.lastReviewDate
Definition | The date on which the resource content was last reviewed. Review happens periodically after approval but does not change the original approval date.
Short | When the activity definition was last reviewed
Comments | If specified, this date follows the original approval date.
Control | 0..0
Type | date
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Requirements | Gives a sense of how "current" the content is. Resources that have not been reviewed in a long time may have a risk of being less appropriate/relevant.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
64. ActivityDefinition.effectivePeriod
Definition | The period during which the activity definition content was or is planned to be in active use.
Short | When the activity definition is expected to be used
Comments | The effective period for a activity definition determines when the content is applicable for usage and is independent of publication and review dates. For example, a measure intended to be used for the year 2016 might be published in 2015.
Control | 0..1
Type | Period
Is Modifier | false
Summary | true
Requirements | Allows establishing a transition before a resource comes into effect and also allows for a sunsetting process when new versions of the activity definition are or are expected to be used instead.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
66. ActivityDefinition.topic
Definition | Descriptive topics related to the content of the activity. Topics provide a high-level categorization of the activity that can be useful for filtering and searching.
Short | E.g. Education, Treatment, Assessment, etc.
Control | 0..0
Binding | For example codes, see DefinitionTopic (example to `http://hl7.org/fhir/ValueSet/definition-topic|4.0.1` ) High-level categorization of the definition, used for searching, sorting, and filtering.
Type | CodeableConcept
Is Modifier | false
Summary | false
Requirements | Repositories must be able to determine how to categorize the activity definition so that it can be found by topical searches.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
68. ActivityDefinition.author
Definition | An individiual or organization primarily involved in the creation and maintenance of the content.
Short | Who authored the content
Control | 0..0
Type | ContactDetail
Is Modifier | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
70. ActivityDefinition.editor
Definition | An individual or organization primarily responsible for internal coherence of the content.
Short | Who edited the content
Control | 0..0
Type | ContactDetail
Is Modifier | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
72. ActivityDefinition.reviewer
Definition | An individual or organization primarily responsible for review of some aspect of the content.
Short | Who reviewed the content
Control | 0..0
Type | ContactDetail
Is Modifier | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
74. ActivityDefinition.endorser
Definition | An individual or organization responsible for officially endorsing the content for use in some setting.
Short | Who endorsed the content
Control | 0..*
Type | ContactDetail
Is Modifier | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
76. ActivityDefinition.relatedArtifact
Definition | Related artifacts such as additional documentation, justification, or bibliographic references.
Short | Additional documentation, citations, etc.
Comments | Each related artifact is either an attachment, or a reference to another resource, but not both.
Control | 0..*
Type | RelatedArtifact
Is Modifier | false
Summary | false
Requirements | Activity definitions must be able to provide enough information for consumers of the content (and/or interventions or results produced by the content) to be able to determine and understand the justification for and evidence in support of the content.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
78. ActivityDefinition.library
Definition | A reference to a Library resource containing any formal logic used by the activity definition.
Short | Logic used by the activity definition
Control | 0..0
Type | canonical(Library)
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())`)
80. ActivityDefinition.kind
Definition | A description of the kind of resource the activity definition is representing. For example, a MedicationRequest, a ServiceRequest, or a CommunicationRequest. Typically, but not always, this is a Request resource.
Short | Kind of resource
Comments | May determine what types of extensions are permitted.
Control | 0..1
Binding | The codes SHALL be taken from RequestResourceType (required to `http://hl7.org/fhir/ValueSet/request-resource-types|4.0.1` ) The kind of activity the definition is describing.
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
82. ActivityDefinition.profile
Definition | A profile to which the target of the activity definition is expected to conform.
Short | What profile the resource needs to conform to
Control | 0..1
Type | canonical(StructureDefinition)
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Requirements | Allows profiles to be used to describe the types of activities that can be performed within a workflow, protocol, or order set.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
84. ActivityDefinition.code
Definition | Detailed description of the type of activity; e.g. What lab test, what procedure, what kind of encounter.
Short | Detail type of activity
Comments | Tends to be less relevant for activities involving particular products.
Control | 0..1
Binding | For example codes, see ProcedureCodes(SNOMEDCT) (example to `http://hl7.org/fhir/ValueSet/procedure-code|4.0.1` ) Detailed type of the activity; e.g. CBC.
Type | CodeableConcept
Is Modifier | false
Summary | true
Requirements | Allows matching performed to planned as well as validation against protocols.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
86. ActivityDefinition.intent
Definition | Indicates the level of authority/intentionality associated with the activity and where the request should fit into the workflow chain.
Short | proposal | plan | directive | order | original-order | reflex-order | filler-order | instance-order | option
Control | 0..1
Binding | The codes SHALL be taken from RequestIntent (required to `http://hl7.org/fhir/ValueSet/request-intent|4.0.1` ) Codes indicating the degree of authority/intentionality associated with a request.
Type | code
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())`)
88. ActivityDefinition.priority
Definition | Indicates how quickly the activity should be addressed with respect to other requests.
Short | routine | urgent | asap | stat
Control | 0..0
Binding | The codes SHALL be taken from RequestPriority (required to `http://hl7.org/fhir/ValueSet/request-priority|4.0.1` ) Identifies the level of importance to be assigned to actioning the request.
Type | code
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())`)
90. ActivityDefinition.doNotPerform
Definition | Set this to true if the definition is to indicate that a particular activity should NOT be performed. If true, this element should be interpreted to reinforce a negative coding. For example NPO as a code with a doNotPerform of true would still indicate to NOT perform the action.
Short | True if the activity should not be performed
Comments | This element is not intended to be used to communicate a decision support response to cancel an order in progress. That should be done with the "remove" type of a PlanDefinition or RequestGroup.
Control | 0..0
Type | boolean
Is Modifier | true because If true this element negates the specified action. For Example, instead of a request for a procedure, it is a request for the procedure to not occur.
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
92. ActivityDefinition.timing[x]
Definition | The period, timing or frequency upon which the described activity is to occur.
Short | When activity is to occur
Control | 0..0
Type | Choice of: Timing, dateTime, Age, Period, Range, Duration
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | false
Requirements | Allows prompting for activities and detection of missed planned activities.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
94. ActivityDefinition.location
Definition | Identifies the facility where the activity will occur; e.g. home, hospital, specific clinic, etc.
Short | Where it should happen
Comments | May reference a specific clinical location or may just identify a type of location.
Control | 0..1
Type | Reference(Location)
Is Modifier | false
Summary | false
Requirements | Helps in planning of activity.
Alternate Names | facility
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
96. ActivityDefinition.participant
Definition | Indicates who should participate in performing the action described.
Short | Who should participate in the action
Control | 0..*
Type | BackboneElement
Is Modifier | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
98. ActivityDefinition.participant.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
100. ActivityDefinition.participant.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()`)
102. ActivityDefinition.participant.modifierExtension
Definition | May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Short | Extensions that cannot be ignored even if unrecognized
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 | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summary | true
Requirements | Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.
Alternate Names | extensions, user content, modifiers
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()`)
104. ActivityDefinition.participant.type
Definition | The type of participant in the action.
Short | patient | practitioner | related-person | device
Control | 1..1
Binding | The codes SHALL be taken from ActionParticipantType (required to `http://hl7.org/fhir/ValueSet/action-participant-type|4.0.1` ) The type of participant in the activity.
Type | code
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())`)
106. ActivityDefinition.participant.role
Definition | The role the participant should play in performing the described action.
Short | E.g. Nurse, Surgeon, Parent, etc.
Control | 0..1
Binding | For example codes, see ActionParticipantRole (example to `http://hl7.org/fhir/ValueSet/action-participant-role|4.0.1` ) Defines roles played by participants for the action.
Type | CodeableConcept
Is Modifier | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
108. ActivityDefinition.product[x]
Definition | Identifies the food, drug or other product being consumed or supplied in the activity.
Short | What's administered/supplied
Control | 0..1
Binding | For example codes, see SNOMEDCTMedicationCodes (example to `http://hl7.org/fhir/ValueSet/medication-codes|4.0.1` ) Code describing the type of substance or medication.
Type | Choice of: Reference(Medication, Substance), 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())`)
110. ActivityDefinition.quantity
Definition | Identifies the quantity expected to be consumed at once (per dose, per meal, etc.).
Short | How much is administered/consumed/supplied
Control | 0..1
Type | Quantity(SimpleQuantity)
Is Modifier | false
Summary | false
Alternate Names | dose
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
112. ActivityDefinition.dosage
Definition | Provides detailed dosage instructions in the same way that they are described for MedicationRequest resources.
Short | Detailed dosage instructions
Comments | If a dosage instruction is used, the definition should not specify timing or quantity.
Control | 0..*
Type | Dosage
Is Modifier | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
114. ActivityDefinition.bodySite
Definition | Indicates the sites on the subject's body where the procedure should be performed (I.e. the target sites).
Short | What part of body to perform on
Comments | Only used if not implicit in the code found in ServiceRequest.type.
Control | 0..*
Binding | For example codes, see SNOMEDCTBodyStructures (example to `http://hl7.org/fhir/ValueSet/body-site|4.0.1` ) A code that identifies the anatomical location.
Type | CodeableConcept
Is Modifier | false
Summary | false
Requirements | Knowing where the procedure is made is important for tracking if multiple sites are possible.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
116. ActivityDefinition.specimenRequirement
Definition | Defines specimen requirements for the action to be performed, such as required specimens for a lab test.
Short | What specimens are required to perform this action
Control | 0..0
Type | Reference(SpecimenDefinition)
Is Modifier | false
Summary | false
Requirements | Needed to represent lab order definitions.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
118. ActivityDefinition.observationRequirement
Definition | Defines observation requirements for the action to be performed, such as body weight or surface area.
Short | What observations are required to perform this action
Control | 0..0
Type | Reference(ObservationDefinition)
Is Modifier | false
Summary | false
Requirements | Needed to represent observation definitions.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
120. ActivityDefinition.observationResultRequirement
Definition | Defines the observations that are expected to be produced by the action.
Short | What observations must be produced by this action
Control | 0..0
Type | Reference(ObservationDefinition)
Is Modifier | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
122. ActivityDefinition.transform
Definition | A reference to a StructureMap resource that defines a transform that can be executed to produce the intent resource using the ActivityDefinition instance as the input.
Short | Transform to apply the template
Comments | Note that if both a transform and dynamic values are specified, the dynamic values will be applied to the result of the transform.
Control | 0..0
Type | canonical(StructureMap)
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())`)
124. ActivityDefinition.dynamicValue
Definition | Dynamic values that will be evaluated to produce values for elements of the resulting resource. For example, if the dosage of a medication must be computed based on the patient's weight, a dynamic value would be used to specify an expression that calculated the weight, and the path on the request resource that would contain the result.
Short | Dynamic aspects of the definition
Comments | Dynamic values are applied in the order in which they are defined in the ActivityDefinition. Note that if both a transform and dynamic values are specified, the dynamic values will be applied to the result of the transform.
Control | 0..0
Type | BackboneElement
Is Modifier | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)