Order Catalog Implementation Guide
1.0.0 - STU 1

Order Catalog Implementation Guide, published by HL7 International / Orders and Observations. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-order-catalog/ and changes regularly. See the Directory of published versions

## Resource Profile: InteractionDefinition - Detailed Descriptions

Page standards status: Trial-use | Maturity Level: 2

Definitions for the InteractionDefinition 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. ClinicalUseDefinition
Definition | A single issue - either an indication, contraindication, interaction or an undesirable effect for a medicinal product, medication, device or procedure.
Short | A single issue - either an indication, contraindication, interaction or an undesirable effect for a medicinal product, medication, device or procedure
Control | 0..*
Is Modifier | false
Must Support | false
Summary | false
Invariants | cud-1: Indication, Contraindication, Interaction, UndesirableEffect and Warning cannot be used in the same instance ((ClinicalUseDefinition.indication.count() + ClinicalUseDefinition.contraindication.count() + ClinicalUseDefinition.interaction.count() + ClinicalUseDefinition.undesirableEffect.count() + ClinicalUseDefinition.warning.count()) < 2) 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().ofType(canonical) | %resource.descendants().ofType(uri) | %resource.descendants().ofType(url))) or descendants().where(reference = '#').exists() or descendants().where(ofType(canonical) = '#').exists() or descendants().where(ofType(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. ClinicalUseDefinition.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 its 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 its meaning or interpretation
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
4. ClinicalUseDefinition.contained
Definition | These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning.
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..* This element is affected by the following invariants: dom-2, dom-4, dom-3, dom-5
Type | Resource
Is Modifier | false
Must Support | false
Summary | false
Alternate Names | inline resources, anonymous resources, contained resources
6. ClinicalUseDefinition.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 managable, 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
Must Support | false
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
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. ClinicalUseDefinition.type
Definition | indication | contraindication | interaction | undesirable-effect | warning.
Short | indication | contraindication | interaction | undesirable-effect | warning
Control | 1..1
Binding | The codes SHALL be taken from ClinicalUseDefinitionType http://hl7.org/fhir/ValueSet/clinical-use-definition-type|5.0.0 (required to `http://hl7.org/fhir/ValueSet/clinical-use-definition-type|5.0.0` ) Overall defining type of this clinical use definition.
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | false
Summary | true
Pattern Value | `interaction`
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
10. ClinicalUseDefinition.contraindication
Definition | Specifics for when this is a contraindication.
Short | Specifics for when this is a contraindication
Control | 0..01 This element is affected by the following invariants: cud-1
Type | BackboneElement
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
13. ClinicalUseDefinition.indication
Definition | Specifics for when this is an indication.
Short | Specifics for when this is an indication
Control | 0..01 This element is affected by the following invariants: cud-1
Type | BackboneElement
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
16. ClinicalUseDefinition.interaction
Definition | Specifics for when this is an interaction.
Short | Specifics for when this is an interaction
Control | 10..1 This element is affected by the following invariants: cud-1
Type | BackboneElement
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
18. ClinicalUseDefinition.interaction.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 managable, 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())
20. ClinicalUseDefinition.undesirableEffect
Definition | Describe the possible undesirable effects (negative outcomes) from the use of the medicinal product as treatment.
Short | A possible negative outcome from the use of this treatment
Control | 0..01 This element is affected by the following invariants: cud-1
Type | BackboneElement
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
23. ClinicalUseDefinition.warning
Definition | A critical piece of information about environmental, health or physical risks or hazards that serve as caution to the user. For example 'Do not operate heavy machinery', 'May cause drowsiness', or 'Get medical advice/attention if you feel unwell'.
Short | Critical environmental, health or physical risks or hazards. For example 'Do not operate heavy machinery', 'May cause drowsiness'
Control | 0..01 This element is affected by the following invariants: cud-1
Type | BackboneElement
Is Modifier | false
Must Support | false
Summary | true
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. ClinicalUseDefinition
2. ClinicalUseDefinition.type
Pattern Value | `interaction`
4. ClinicalUseDefinition.contraindication
Control | 0..0
6. ClinicalUseDefinition.indication
Control | 0..0
8. ClinicalUseDefinition.interaction
Control | 1..?
10. ClinicalUseDefinition.undesirableEffect
Control | 0..0
12. ClinicalUseDefinition.warning
Control | 0..0

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

0. ClinicalUseDefinition
Definition | A single issue - either an indication, contraindication, interaction or an undesirable effect for a medicinal product, medication, device or procedure.
Short | A single issue - either an indication, contraindication, interaction or an undesirable effect for a medicinal product, medication, device or procedure
Control | 0..*
Is Modifier | false
Must Support | false
Summary | false
Invariants | cud-1: Indication, Contraindication, Interaction, UndesirableEffect and Warning cannot be used in the same instance (`(ClinicalUseDefinition.indication.count() + ClinicalUseDefinition.contraindication.count() + ClinicalUseDefinition.interaction.count() + ClinicalUseDefinition.undesirableEffect.count() + ClinicalUseDefinition.warning.count()) < 2`) 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().ofType(canonical) | %resource.descendants().ofType(uri) | %resource.descendants().ofType(url))) or descendants().where(reference = '#').exists() or descendants().where(ofType(canonical) = '#').exists() or descendants().where(ofType(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. ClinicalUseDefinition.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 | Within the context of the FHIR RESTful interactions, the resource has an id except for cases like the create and conditional update. Otherwise, the use of the resouce id depends on the given use case.
Control | 0..1
Type | id
Is Modifier | false
Must Support | false
Summary | true
4. ClinicalUseDefinition.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
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
6. ClinicalUseDefinition.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 its 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 its meaning or interpretation
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
8. ClinicalUseDefinition.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 SHALL be taken from AllLanguages (required to `http://hl7.org/fhir/ValueSet/all-languages|5.0.0` ) IETF language tag for a human language
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | false
Summary | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
10. ClinicalUseDefinition.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 a 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 This element is affected by the following invariants: dom-6
Type | Narrative
Is Modifier | false
Must Support | 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. ClinicalUseDefinition.contained
Definition | These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning.
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..* This element is affected by the following invariants: dom-2, dom-4, dom-3, dom-5
Type | Resource
Is Modifier | false
Must Support | false
Summary | false
Alternate Names | inline resources, anonymous resources, contained resources
14. ClinicalUseDefinition.extension
Definition | 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 managable, 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
Must Support | 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()`)
16. ClinicalUseDefinition.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 managable, 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
Must Support | false
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
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. ClinicalUseDefinition.identifier
Definition | Business identifier for this issue.
Short | Business identifier for this issue
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 0..*
Type | Identifier
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
20. ClinicalUseDefinition.type
Definition | indication | contraindication | interaction | undesirable-effect | warning.
Short | indication | contraindication | interaction | undesirable-effect | warning
Control | 1..1
Binding | The codes SHALL be taken from ClinicalUseDefinitionType (required to `http://hl7.org/fhir/ValueSet/clinical-use-definition-type|5.0.0` ) Overall defining type of this clinical use definition.
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | false
Summary | true
Pattern Value | `interaction`
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
22. ClinicalUseDefinition.category
Definition | A categorisation of the issue, primarily for dividing warnings into subject heading areas such as "Pregnancy and Lactation", "Overdose", "Effects on Ability to Drive and Use Machines".
Short | A categorisation of the issue, primarily for dividing warnings into subject heading areas such as "Pregnancy", "Overdose"
Control | 0..*
Binding | The codes SHOULD be taken from ClinicalUseDefinitionCategory (preferred to `http://hl7.org/fhir/ValueSet/clinical-use-definition-category|5.0.0` ) A categorisation for a clinical use information item.
Type | CodeableConcept
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
24. ClinicalUseDefinition.subject
Definition | The medication, product, substance, device, procedure etc. for which this is an indication.
Short | The medication, product, substance, device, procedure etc. for which this is an indication
Control | 0..*
Type | Reference(MedicinalProductDefinition, Medication, ActivityDefinition, PlanDefinition, Device, DeviceDefinition, Substance, NutritionProduct, BiologicallyDerivedProduct)
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
26. ClinicalUseDefinition.status
Definition | Whether this is a current issue or one that has been retired etc.
Short | Whether this is a current issue or one that has been retired etc
Control | 0..1
Binding | The codes SHOULD be taken from PublicationStatus (preferred to `http://hl7.org/fhir/ValueSet/publication-status|5.0.0` ) The lifecycle status of an artifact.
Type | CodeableConcept
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
28. ClinicalUseDefinition.contraindication
Definition | Specifics for when this is a contraindication.
Short | Specifics for when this is a contraindication
Control | 0..0 This element is affected by the following invariants: cud-1
Type | BackboneElement
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
44. ClinicalUseDefinition.indication
Definition | Specifics for when this is an indication.
Short | Specifics for when this is an indication
Control | 0..0 This element is affected by the following invariants: cud-1
Type | BackboneElement
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
57. ClinicalUseDefinition.interaction
Definition | Specifics for when this is an interaction.
Short | Specifics for when this is an interaction
Control | 1..1 This element is affected by the following invariants: cud-1
Type | BackboneElement
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
59. ClinicalUseDefinition.interaction.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 This element is affected by the following invariants: ele-1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
61. ClinicalUseDefinition.interaction.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 managable, 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()`)
63. ClinicalUseDefinition.interaction.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 managable, 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()`)
65. ClinicalUseDefinition.interaction.interactant
Definition | The specific medication, product, food, substance etc. or laboratory test that interacts.
Short | The specific medication, product, food etc. or laboratory test that interacts
Control | 0..*
Type | BackboneElement
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
67. ClinicalUseDefinition.interaction.interactant.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 This element is affected by the following invariants: ele-1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
69. ClinicalUseDefinition.interaction.interactant.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 managable, 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()`)
71. ClinicalUseDefinition.interaction.interactant.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 managable, 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()`)
73. ClinicalUseDefinition.interaction.interactant.item[x]
Definition | The specific medication, product, food, substance etc. or laboratory test that interacts.
Short | The specific medication, product, food etc. or laboratory test that interacts
Control | 1..1
Binding | For example codes, see Interactant (example to `http://hl7.org/fhir/ValueSet/interactant|5.0.0` ) An interactant - a substance that may have a clinically significant effect on another.
Type | Choice of: Reference(MedicinalProductDefinition, Medication, Substance, NutritionProduct, BiologicallyDerivedProduct, ObservationDefinition), CodeableConcept
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
75. ClinicalUseDefinition.interaction.type
Definition | The type of the interaction e.g. drug-drug interaction, drug-food interaction, drug-lab test interaction.
Short | The type of the interaction e.g. drug-drug interaction, drug-lab test interaction
Control | 0..1
Binding | For example codes, see InteractionType (example to `http://hl7.org/fhir/ValueSet/interaction-type|5.0.0` ) A categorisation for an interaction between two substances.
Type | CodeableConcept
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
77. ClinicalUseDefinition.interaction.effect
Definition | The effect of the interaction, for example "reduced gastric absorption of primary medication".
Short | The effect of the interaction, for example "reduced gastric absorption of primary medication"
Control | 0..1
Binding | For example codes, see InteractionEffect (example to `http://hl7.org/fhir/ValueSet/interaction-effect|5.0.0` ) A interaction effect of clinical use of a medication or other substance.
Type | CodeableReference(ObservationDefinition)
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
79. ClinicalUseDefinition.interaction.incidence
Definition | The incidence of the interaction, e.g. theoretical, observed.
Short | The incidence of the interaction, e.g. theoretical, observed
Control | 0..1
Binding | For example codes, see InteractionIncidence (example to `http://hl7.org/fhir/ValueSet/interaction-incidence|5.0.0` ) A categorisation for incidence of occurence of an interaction.
Type | CodeableConcept
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
81. ClinicalUseDefinition.interaction.management
Definition | Actions for managing the interaction.
Short | Actions for managing the interaction
Control | 0..*
Binding | For example codes, see InteractionManagement (example to `http://hl7.org/fhir/ValueSet/interaction-management|5.0.0` ) A type of management for an interaction of a medication or other substance.
Type | CodeableConcept
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
83. ClinicalUseDefinition.population
Definition | The population group to which this applies.
Short | The population group to which this applies
Control | 0..*
Type | Reference(Group)
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
85. ClinicalUseDefinition.library
Definition | Logic used by the clinical use definition.
Short | Logic used by the clinical use definition
Control | 0..*
Type | canonical(Library)
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
87. ClinicalUseDefinition.undesirableEffect
Definition | Describe the possible undesirable effects (negative outcomes) from the use of the medicinal product as treatment.
Short | A possible negative outcome from the use of this treatment
Control | 0..0 This element is affected by the following invariants: cud-1
Type | BackboneElement
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
95. ClinicalUseDefinition.warning
Definition | A critical piece of information about environmental, health or physical risks or hazards that serve as caution to the user. For example 'Do not operate heavy machinery', 'May cause drowsiness', or 'Get medical advice/attention if you feel unwell'.
Short | Critical environmental, health or physical risks or hazards. For example 'Do not operate heavy machinery', 'May cause drowsiness'
Control | 0..0 This element is affected by the following invariants: cud-1
Type | BackboneElement
Is Modifier | false
Must Support | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)