Clinical Practice Guidelines (CPG) on EBMonFHIR
1.0.1 - ci-build
Clinical Practice Guidelines (CPG) on EBMonFHIR, published by Universitätsmedizin Greifswald. This guide is not an authorized publication; it is the continuous build for version 1.0.1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/CEOsys/cpg-on-ebm-on-fhir/ and changes regularly. See the Directory of published versions
Draft as of 2022-05-10 |
Definitions for the study-cohort resource profile.
Guidance on how to interpret the contents of this table can be found here
0. Group |
Guidance on how to interpret the contents of this table can be found here
0. Group | |
Definition | Represents a defined collection of entities that may be discussed or acted upon collectively but which are not expected to act collectively, and are not formally or legally recognized; i.e. a collection of entities that isn't an Organization. |
Short | Group of multiple entities |
Comments | If both Group.characteristic and Group.member are present, then the members are the individuals who were found who met the characteristic. It's possible that there might be other candidate members who meet the characteristic and aren't (yet) in the list. All members SHALL have the listed characteristics. |
Control | 0..* |
Is Modifier | false |
Must Support | false |
Summary | false |
Invariants | 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. Group.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. Group.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. Group.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. Group.active | |
Definition | Indicates whether the record for the group is available for use or is merely being retained for historical purposes. |
Short | Whether this group's record is in active use |
Control | 0..1 |
Type | boolean |
Is Modifier | true because This element is labelled as a modifier because it is a status element that can indicate that a record should not be treated as valid |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
Must Support | false |
Summary | true |
Requirements | Need to be able to mark a group record as not to be used because it was created in error or is otherwise no longer available (e.g. a herd that no longer exists). |
Meaning if Missing | This resource is generally assumed to be active if no value is provided for the active element |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
10. Group.type | |
Definition | Identifies the broad classification of the kind of resources the group includes. |
Short | person | animal | practitioner | device | careteam | healthcareservice | location | organization | relatedperson | specimen |
Comments | Group members SHALL be of the appropriate resource type (Patient for person or animal; or Practitioner, PractitionerRole, Device, CareTeam, HealthcareService, Location, Organization, RelatedPerson, or Specimen for the other types.), or a Group of the resources of the appropriate type. |
Control | 1..1 |
Binding | The codes SHALL be taken from GroupTypehttp://hl7.org/fhir/ValueSet/group-type|5.0.0 (required to http://hl7.org/fhir/ValueSet/group-type|5.0.0 )Types of resources that are part of group. |
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 |
Requirements | Identifies what type of resources the group is made up of. |
Pattern Value | person |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
12. Group.membership | |
Definition | Basis for membership in the Group:
|
Short | definitional | enumerated |
Control | 1..1 |
Binding | The codes SHALL be taken from GroupMembershipBasishttp://hl7.org/fhir/ValueSet/group-membership-basis|5.0.0 (required to http://hl7.org/fhir/ValueSet/group-membership-basis|5.0.0 )The basis for membership in a group |
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 |
Requirements | There are use-cases for groups that define specific collections of individuals, and other groups that define "types" of intended individuals. The requirements for both kinds of groups are similar, so we use a single resource, distinguished by this element. |
Pattern Value | definitional |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
14. Group.quantity | |
Definition | A count of the number of resource instances that are part of the group. |
Short | Number of members |
Comments | Note that the quantity may be less than the number of members if some of the members are not active. |
Control | 10..1 |
Type | unsignedInt |
Is Modifier | false |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
Must Support | true |
Summary | true |
Requirements | Group size is a common defining characteristic. |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
16. Group.characteristic | |
Definition | Identifies traits whose presence r absence is shared by members of the group. |
Short | Include / Exclude group members by Trait |
Comments | All the identified characteristics must be true for an entity to a member of the group. |
Control | 0..0* |
Type | BackboneElement |
Is Modifier | false |
Must Support | false |
Summary | true |
Requirements | Needs to be a generic mechanism for identifying what individuals can be part of a group. |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
Guidance on how to interpret the contents of this table can be found here
0. Group | |
Definition | Represents a defined collection of entities that may be discussed or acted upon collectively but which are not expected to act collectively, and are not formally or legally recognized; i.e. a collection of entities that isn't an Organization. |
Short | Group of multiple entities |
Comments | If both Group.characteristic and Group.member are present, then the members are the individuals who were found who met the characteristic. It's possible that there might be other candidate members who meet the characteristic and aren't (yet) in the list. All members SHALL have the listed characteristics. |
Control | 0..* |
Is Modifier | false |
Must Support | false |
Summary | false |
Invariants | 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. Group.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. Group.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. Group.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. Group.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. Group.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. Group.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. Group.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. Group.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. Group.identifier | |
Definition | Business identifiers assigned to this participant by one of the applications involved. These identifiers remain constant as the resource is updated and propagates from server to server. |
Short | Business Identifier for this Group |
Comments | Note: This is a business identifier, not a resource identifier (see discussion). It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types. |
Note | This is a business identifier, not a resource identifier (see discussion) |
Control | 0..* |
Type | Identifier |
Is Modifier | false |
Must Support | false |
Summary | true |
Requirements | Allows identification of the group as it is known by various participating systems and in a way that remains consistent across servers. |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()) ) |
20. Group.active | |
Definition | Indicates whether the record for the group is available for use or is merely being retained for historical purposes. |
Short | Whether this group's record is in active use |
Control | 0..1 |
Type | boolean |
Is Modifier | true because This element is labelled as a modifier because it is a status element that can indicate that a record should not be treated as valid |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
Must Support | false |
Summary | true |
Requirements | Need to be able to mark a group record as not to be used because it was created in error or is otherwise no longer available (e.g. a herd that no longer exists). |
Meaning if Missing | This resource is generally assumed to be active if no value is provided for the active element |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()) ) |
22. Group.type | |
Definition | Identifies the broad classification of the kind of resources the group includes. |
Short | person | animal | practitioner | device | careteam | healthcareservice | location | organization | relatedperson | specimen |
Comments | Group members SHALL be of the appropriate resource type (Patient for person or animal; or Practitioner, PractitionerRole, Device, CareTeam, HealthcareService, Location, Organization, RelatedPerson, or Specimen for the other types.), or a Group of the resources of the appropriate type. |
Control | 1..1 |
Binding | The codes SHALL be taken from GroupType (required to http://hl7.org/fhir/ValueSet/group-type|5.0.0 )Types of resources that are part of group. |
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 |
Requirements | Identifies what type of resources the group is made up of. |
Pattern Value | person |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()) ) |
24. Group.membership | |
Definition | Basis for membership in the Group:
|
Short | definitional | enumerated |
Control | 1..1 |
Binding | The codes SHALL be taken from GroupMembershipBasis (required to http://hl7.org/fhir/ValueSet/group-membership-basis|5.0.0 )The basis for membership in a group |
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 |
Requirements | There are use-cases for groups that define specific collections of individuals, and other groups that define "types" of intended individuals. The requirements for both kinds of groups are similar, so we use a single resource, distinguished by this element. |
Pattern Value | definitional |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()) ) |
26. Group.code | |
Definition | Provides a specific type of resource the group includes; e.g. "cow", "syringe", etc. |
Short | Kind of Group members |
Comments | This would generally be omitted for Person resources. |
Control | 0..1 |
Binding | Kind of particular resource; e.g. cow, syringe, lake, etc. |
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. Group.name | |
Definition | A label assigned to the group for human identification and communication. |
Short | Label for Group |
Control | 0..1 |
Type | string |
Is Modifier | false |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
Must Support | false |
Summary | true |
Requirements | Used to identify the group in human communication. |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()) ) |
30. Group.description | |
Definition | Explanation of what the group represents and how it is intended to be used. |
Short | Natural language description of the group |
Control | 0..1 |
Type | markdown |
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()) ) |
32. Group.quantity | |
Definition | A count of the number of resource instances that are part of the group. |
Short | Number of members |
Comments | Note that the quantity may be less than the number of members if some of the members are not active. |
Control | 1..1 |
Type | unsignedInt |
Is Modifier | false |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
Must Support | true |
Summary | true |
Requirements | Group size is a common defining characteristic. |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()) ) |
34. Group.managingEntity | |
Definition | Entity responsible for defining and maintaining Group characteristics and/or registered members. |
Short | Entity that is the custodian of the Group's definition |
Comments | This does not strictly align with ownership of a herd or flock, but may suffice to represent that relationship in simple cases. More complex cases will require an extension. |
Control | 0..1 |
Type | Reference(Organization, RelatedPerson, Practitioner, PractitionerRole) |
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()) ) |
36. Group.characteristic | |
Definition | Identifies traits whose presence r absence is shared by members of the group. |
Short | Include / Exclude group members by Trait |
Comments | All the identified characteristics must be true for an entity to a member of the group. |
Control | 0..0 |
Type | BackboneElement |
Is Modifier | false |
Must Support | false |
Summary | true |
Requirements | Needs to be a generic mechanism for identifying what individuals can be part of a group. |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()) ) |
45. Group.member | |
Definition | Identifies the resource instances that are members of the group. |
Short | Who or what is in group |
Control | 0..* |
Type | BackboneElement |
Is Modifier | false |
Must Support | false |
Summary | false |
Requirements | Often the only thing of interest about a group is "who's in it". |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()) ) |
47. Group.member.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 |
49. Group.member.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() ) |
51. Group.member.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() ) |
53. Group.member.entity | |
Definition | A reference to the entity that is a member of the group. Must be consistent with Group.type. If the entity is another group, then the type must be the same. |
Short | Reference to the group member |
Control | 1..1 |
Type | Reference(CareTeam, Device, Group, HealthcareService, Location, Organization, Patient, Practitioner, PractitionerRole, RelatedPerson, Specimen) |
Is Modifier | false |
Must Support | false |
Summary | false |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()) ) |
55. Group.member.period | |
Definition | The period that the member was in the group, if known. |
Short | Period member belonged to the group |
Control | 0..1 |
Type | Period |
Is Modifier | false |
Must Support | false |
Summary | false |
Requirements | Need to track who was in a group at a particular time. |
Meaning if Missing | The member is in the group at this time |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()) ) |
57. Group.member.inactive | |
Definition | A flag to indicate that the member is no longer in the group, but previously may have been a member. |
Short | If member is no longer in group |
Control | 0..1 |
Type | boolean |
Is Modifier | false |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
Must Support | false |
Summary | false |
Requirements | Sometimes you don't know when someone stopped being in a group, but not when. |
Meaning if Missing | Members are considered active unless explicitly specified otherwise |
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()) ) |