FHIR Application Feature Framework Implementation Guide
1.0.0-ballot - STU1 Ballot International flag

FHIR Application Feature Framework Implementation Guide, published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 1.0.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/capstmt/ and changes regularly. See the Directory of published versions

Resource Profile: FeatureCapabilityStatement - Detailed Descriptions

Page standards status: Trial-use Maturity Level: 1

Definitions for the FeatureCapabilityStatement resource profile.

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

0. CapabilityStatement
2. CapabilityStatement.name
Must Supporttrue
4. CapabilityStatement.rest
6. CapabilityStatement.rest.extension
SlicingThis element introduces a set of slices on CapabilityStatement.rest.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 8. CapabilityStatement.rest.extension:feature
    Slice Namefeature
    Control0..*
    TypeExtension(Feature) (Complex Extension)
    Must Supporttrue
    10. CapabilityStatement.rest.security
    12. CapabilityStatement.rest.security.extension
    SlicingThis element introduces a set of slices on CapabilityStatement.rest.security.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 14. CapabilityStatement.rest.security.extension:feature
      Slice Namefeature
      Control0..*
      TypeExtension(Feature) (Complex Extension)
      Must Supporttrue
      16. CapabilityStatement.rest.resource
      18. CapabilityStatement.rest.resource.extension
      SlicingThis element introduces a set of slices on CapabilityStatement.rest.resource.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 20. CapabilityStatement.rest.resource.extension:feature
        Slice Namefeature
        Control0..*
        TypeExtension(Feature) (Complex Extension)
        Must Supporttrue
        22. CapabilityStatement.rest.resource.interaction
        24. CapabilityStatement.rest.resource.interaction.extension
        SlicingThis element introduces a set of slices on CapabilityStatement.rest.resource.interaction.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 26. CapabilityStatement.rest.resource.interaction.extension:feature
          Slice Namefeature
          Control0..*
          TypeExtension(Feature) (Complex Extension)
          Must Supporttrue
          28. CapabilityStatement.rest.resource.searchParam
          30. CapabilityStatement.rest.resource.searchParam.extension
          SlicingThis element introduces a set of slices on CapabilityStatement.rest.resource.searchParam.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 32. CapabilityStatement.rest.resource.searchParam.extension:feature
            Slice Namefeature
            Control0..*
            TypeExtension(Feature) (Complex Extension)
            Must Supporttrue
            34. CapabilityStatement.rest.resource.operation
            36. CapabilityStatement.rest.resource.operation.extension
            SlicingThis element introduces a set of slices on CapabilityStatement.rest.resource.operation.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 38. CapabilityStatement.rest.resource.operation.extension:feature
              Slice Namefeature
              Control0..*
              TypeExtension(Feature) (Complex Extension)
              Must Supporttrue
              40. CapabilityStatement.rest.interaction
              42. CapabilityStatement.rest.interaction.extension
              SlicingThis element introduces a set of slices on CapabilityStatement.rest.interaction.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 44. CapabilityStatement.rest.interaction.extension:feature
                Slice Namefeature
                Control0..*
                TypeExtension(Feature) (Complex Extension)
                Must Supporttrue
                46. CapabilityStatement.messaging
                48. CapabilityStatement.messaging.extension
                SlicingThis element introduces a set of slices on CapabilityStatement.messaging.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 50. CapabilityStatement.messaging.extension:feature
                  Slice Namefeature
                  Control0..*
                  TypeExtension(Feature) (Complex Extension)
                  Must Supporttrue
                  52. CapabilityStatement.document
                  54. CapabilityStatement.document.extension
                  SlicingThis element introduces a set of slices on CapabilityStatement.document.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                  • value @ url
                  • 56. CapabilityStatement.document.extension:feature
                    Slice Namefeature
                    Control0..*
                    TypeExtension(Feature) (Complex Extension)
                    Must Supporttrue

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

                    0. CapabilityStatement
                    Definition

                    A Capability Statement documents a set of capabilities (behaviors) of a FHIR Server for a particular version of FHIR that may be used as a statement of actual server functionality or a statement of required or desired server implementation.

                    ShortA statement of system capabilities
                    Comments

                    Applications may implement multiple versions (see Managing Multiple Versions, and the $versions operation). If they do, then a CapabilityStatement describes the system's support for a particular version of FHIR, and the server will have multiple statements, one for each version.

                    Control0..*
                    Is Modifierfalse
                    Summaryfalse
                    Invariantscpb-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}'))
                    cpb-1: A Capability Statement SHALL have at least one of REST, messaging or document element. (rest.exists() or messaging.exists() or document.exists())
                    cpb-2: A Capability Statement SHALL have at least one of description, software, or implementation element. ((description.count() + software.count() + implementation.count()) > 0)
                    cpb-3: Messaging end-point is required (and is only permitted) when a statement is for an implementation. (messaging.endpoint.empty() or kind = 'instance')
                    cpb-7: The set of documents must be unique by the combination of profile and mode. (document.select(profile&mode).isDistinct())
                    cpb-14: If kind = instance, implementation must be present and software may be present ((kind != 'instance') or implementation.exists())
                    cpb-15: If kind = capability, implementation must be absent, software must be present ((kind != 'capability') or (implementation.exists().not() and software.exists()))
                    cpb-16: If kind = requirements, implementation and software must be absent ((kind!='requirements') or (implementation.exists().not() and software.exists().not()))
                    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())
                    cpb-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}'))
                    cpb-1: A Capability Statement SHALL have at least one of REST, messaging or document element. (rest.exists() or messaging.exists() or document.exists())
                    cpb-2: A Capability Statement SHALL have at least one of description, software, or implementation element. ((description.count() + software.count() + implementation.count()) > 0)
                    cpb-3: Messaging end-point is required (and is only permitted) when a statement is for an implementation. (messaging.endpoint.empty() or kind = 'instance')
                    cpb-7: The set of documents must be unique by the combination of profile and mode. (document.select(profile&mode).isDistinct())
                    cpb-14: If kind = instance, implementation must be present and software may be present ((kind != 'instance') or implementation.exists())
                    cpb-15: If kind = capability, implementation must be absent, software must be present ((kind != 'capability') or (implementation.exists().not() and software.exists()))
                    cpb-16: If kind = requirements, implementation and software must be absent ((kind!='requirements') or (implementation.exists().not() and software.exists().not()))
                    2. CapabilityStatement.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.

                    ShortA 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.

                    Control0..1
                    Typeuri
                    Is Modifiertrue 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 ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    4. CapabilityStatement.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).

                    ShortExtensions 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.

                    Control0..*
                    TypeExtension
                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
                    Summaryfalse
                    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 Namesextensions, user content
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                    6. CapabilityStatement.name
                    Definition

                    A natural language name identifying the capability statement. This name should be usable as an identifier for the module by machine processing applications such as code generation.

                    ShortName for this capability statement (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.

                    Control0..1
                    This element is affected by the following invariants: inv-0
                    Typestring
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supporttrue
                    Summarytrue
                    Requirements

                    Support human navigation and code generation.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    8. CapabilityStatement.status
                    Definition

                    The status of this capability statement. Enables tracking the life-cycle of the content.

                    Shortdraft | active | retired | unknown
                    Comments

                    Allows filtering of capability statements that are appropriate for use versus not.This is not intended for use with actual capability statements, but where capability statements are used to describe possible or desired systems.

                    Control1..1
                    BindingThe codes SHALL be taken from PublicationStatushttp://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.

                    Typecode
                    Is Modifiertrue because This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    10. CapabilityStatement.date
                    Definition

                    The date (and optionally time) when the capability statement 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 capability statement changes.

                    ShortDate 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 capability statement. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.

                    Control1..1
                    TypedateTime
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summarytrue
                    Alternate NamesRevision Date
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    12. CapabilityStatement.kind
                    Definition

                    The way that this statement is intended to be used, to describe an actual running instance of software, a particular product (kind, not instance of software) or a class of implementation (e.g. a desired purchase).

                    Shortinstance | capability | requirements
                    Control1..1
                    This element is affected by the following invariants: cpb-15
                    BindingThe codes SHALL be taken from CapabilityStatementKindhttp://hl7.org/fhir/ValueSet/capability-statement-kind|4.0.1
                    (required to http://hl7.org/fhir/ValueSet/capability-statement-kind|4.0.1)

                    How a capability statement is intended to be used.

                    Typecode
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summarytrue
                    Requirements

                    Allow searching the 3 modes.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    14. CapabilityStatement.implementation
                    Definition

                    Identifies a specific implementation instance that is described by the capability statement - i.e. a particular installation, rather than the capabilities of a software program.

                    ShortIf this describes a specific instance
                    Control0..1
                    This element is affected by the following invariants: cpb-2, cpb-15
                    TypeBackboneElement
                    Is Modifierfalse
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    16. CapabilityStatement.implementation.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).

                    ShortExtensions 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.

                    Control0..*
                    TypeExtension
                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                    Summarytrue
                    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 Namesextensions, user content, modifiers
                    Invariantsele-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. CapabilityStatement.implementation.description
                    Definition

                    Information about the specific installation that this capability statement relates to.

                    ShortDescribes this specific instance
                    Control1..1
                    Typestring
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    20. CapabilityStatement.fhirVersion
                    Definition

                    The version of the FHIR specification that this CapabilityStatement describes (which SHALL be the same as the FHIR version of the CapabilityStatement itself). There is no default value.

                    ShortFHIR Version the system supports
                    Comments

                    Servers may implement multiple versions (see Managing Multiple Versions, and the $versions operation). If they do, and the CapabilityStatement is requested from the server, then this fhirVersion will be either the version requested, or the server's default version.

                    Control1..1
                    BindingThe codes SHALL be taken from FHIRVersionhttp://hl7.org/fhir/ValueSet/FHIR-version|4.0.1
                    (required to http://hl7.org/fhir/ValueSet/FHIR-version|4.0.1)

                    All published FHIR Versions.

                    Typecode
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    22. CapabilityStatement.format
                    Definition

                    A list of the formats supported by this implementation using their content types.

                    Shortformats supported (xml | json | ttl | mime type)
                    Comments

                    "xml", "json" and "ttl" are allowed, which describe the simple encodings described in the specification (and imply appropriate bundle support). Otherwise, mime types are legal here.

                    Control1..*
                    BindingThe codes SHALL be taken from Mime Typeshttp://hl7.org/fhir/ValueSet/mimetypes|4.0.1
                    (required to http://hl7.org/fhir/ValueSet/mimetypes|4.0.1)

                    The mime type of an attachment. Any valid mime type is allowed.

                    Typecode
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    24. CapabilityStatement.rest
                    Definition

                    A definition of the restful capabilities of the solution, if any.

                    ShortIf the endpoint is a RESTful one
                    Comments

                    Multiple repetitions allow definition of both client and/or server behaviors or possibly behaviors under different configuration settings (for software or requirements statements).

                    Control0..*
                    This element is affected by the following invariants: cpb-1
                    TypeBackboneElement
                    Is Modifierfalse
                    Summarytrue
                    Invariantscpb-9: A given resource can only be described once per RESTful mode. (resource.select(type).isDistinct())
                    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    cpb-9: A given resource can only be described once per RESTful mode. (resource.select(type).isDistinct())
                    26. CapabilityStatement.rest.extension
                    Definition

                    An Extension


                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                    ShortExtensionAdditional 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.

                    Control0..*
                    TypeExtension
                    Is Modifierfalse
                    Summaryfalse
                    Alternate Namesextensions, user content
                    Invariantsele-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())
                    SlicingThis element introduces a set of slices on CapabilityStatement.rest.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                    • value @ url
                    • 28. CapabilityStatement.rest.extension:feature
                      Slice Namefeature
                      Definition

                      This extension documents the features of a system using code/value pairs

                      ShortExtension
                      Control0..*
                      This element is affected by the following invariants: ele-1
                      TypeExtension(Feature) (Complex Extension)
                      Is Modifierfalse
                      Must Supporttrue
                      Invariantsele-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())
                      30. CapabilityStatement.rest.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).

                      ShortExtensions 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.

                      Control0..*
                      TypeExtension
                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                      Summarytrue
                      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 Namesextensions, user content, modifiers
                      Invariantsele-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())
                      32. CapabilityStatement.rest.mode
                      Definition

                      Identifies whether this portion of the statement is describing the ability to initiate or receive restful operations.

                      Shortclient | server
                      Control1..1
                      BindingThe codes SHALL be taken from RestfulCapabilityModehttp://hl7.org/fhir/ValueSet/restful-capability-mode|4.0.1
                      (required to http://hl7.org/fhir/ValueSet/restful-capability-mode|4.0.1)

                      The mode of a RESTful capability statement.

                      Typecode
                      Is Modifierfalse
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Summarytrue
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      34. CapabilityStatement.rest.security
                      Definition

                      Information about security implementation from an interface perspective - what a client needs to know.

                      ShortInformation about security of implementation
                      Control0..1
                      TypeBackboneElement
                      Is Modifierfalse
                      Summarytrue
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      36. CapabilityStatement.rest.security.extension
                      Definition

                      An Extension


                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                      ShortExtensionAdditional 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.

                      Control0..*
                      TypeExtension
                      Is Modifierfalse
                      Summaryfalse
                      Alternate Namesextensions, user content
                      Invariantsele-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())
                      SlicingThis element introduces a set of slices on CapabilityStatement.rest.security.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                      • value @ url
                      • 38. CapabilityStatement.rest.security.extension:feature
                        Slice Namefeature
                        Definition

                        This extension documents the features of a system using code/value pairs

                        ShortExtension
                        Control0..*
                        This element is affected by the following invariants: ele-1
                        TypeExtension(Feature) (Complex Extension)
                        Is Modifierfalse
                        Must Supporttrue
                        Invariantsele-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())
                        40. CapabilityStatement.rest.security.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).

                        ShortExtensions 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.

                        Control0..*
                        TypeExtension
                        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                        Summarytrue
                        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 Namesextensions, user content, modifiers
                        Invariantsele-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())
                        42. CapabilityStatement.rest.resource
                        Definition

                        A specification of the restful capabilities of the solution for a specific resource type.

                        ShortResource served on the REST interface
                        Comments

                        Max of one repetition per resource type.

                        Control0..*
                        TypeBackboneElement
                        Is Modifierfalse
                        Summarytrue
                        Invariantscpb-12: Search parameter names must be unique in the context of a resource. (searchParam.select(name).isDistinct())
                        ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        cpb-12: Search parameter names must be unique in the context of a resource. (searchParam.select(name).isDistinct())
                        44. CapabilityStatement.rest.resource.extension
                        Definition

                        An Extension


                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                        ShortExtensionAdditional 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.

                        Control0..*
                        TypeExtension
                        Is Modifierfalse
                        Summaryfalse
                        Alternate Namesextensions, user content
                        Invariantsele-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())
                        SlicingThis element introduces a set of slices on CapabilityStatement.rest.resource.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                        • value @ url
                        • 46. CapabilityStatement.rest.resource.extension:feature
                          Slice Namefeature
                          Definition

                          This extension documents the features of a system using code/value pairs

                          ShortExtension
                          Control0..*
                          This element is affected by the following invariants: ele-1
                          TypeExtension(Feature) (Complex Extension)
                          Is Modifierfalse
                          Must Supporttrue
                          Invariantsele-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())
                          48. CapabilityStatement.rest.resource.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).

                          ShortExtensions 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.

                          Control0..*
                          TypeExtension
                          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                          Summarytrue
                          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 Namesextensions, user content, modifiers
                          Invariantsele-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())
                          50. CapabilityStatement.rest.resource.type
                          Definition

                          A type of resource exposed via the restful interface.

                          ShortA resource type that is supported
                          Control1..1
                          BindingThe codes SHALL be taken from ResourceTypehttp://hl7.org/fhir/ValueSet/resource-types|4.0.1
                          (required to http://hl7.org/fhir/ValueSet/resource-types|4.0.1)

                          One of the resource types defined as part of this version of FHIR.

                          Typecode
                          Is Modifierfalse
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          Summarytrue
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          52. CapabilityStatement.rest.resource.interaction
                          Definition

                          Identifies a restful operation supported by the solution.

                          ShortWhat operations are supported?
                          Comments

                          In general, a Resource will only appear in a CapabilityStatement if the server actually has some capabilities - e.g. there is at least one interaction supported. However interactions can be omitted to support summarization (_summary = true).

                          Control0..*
                          TypeBackboneElement
                          Is Modifierfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          54. CapabilityStatement.rest.resource.interaction.extension
                          Definition

                          An Extension


                          May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                          ShortExtensionAdditional 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.

                          Control0..*
                          TypeExtension
                          Is Modifierfalse
                          Summaryfalse
                          Alternate Namesextensions, user content
                          Invariantsele-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())
                          SlicingThis element introduces a set of slices on CapabilityStatement.rest.resource.interaction.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                          • value @ url
                          • 56. CapabilityStatement.rest.resource.interaction.extension:feature
                            Slice Namefeature
                            Definition

                            This extension documents the features of a system using code/value pairs

                            ShortExtension
                            Control0..*
                            This element is affected by the following invariants: ele-1
                            TypeExtension(Feature) (Complex Extension)
                            Is Modifierfalse
                            Must Supporttrue
                            Invariantsele-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())
                            58. CapabilityStatement.rest.resource.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 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).

                            ShortExtensions 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.

                            Control0..*
                            TypeExtension
                            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                            Summarytrue
                            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 Namesextensions, user content, modifiers
                            Invariantsele-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())
                            60. CapabilityStatement.rest.resource.interaction.code
                            Definition

                            Coded identifier of the operation, supported by the system resource.

                            Shortread | vread | update | patch | delete | history-instance | history-type | create | search-type
                            Control1..1
                            BindingThe codes SHALL be taken from TypeRestfulInteractionhttp://hl7.org/fhir/ValueSet/type-restful-interaction|4.0.1
                            (required to http://hl7.org/fhir/ValueSet/type-restful-interaction|4.0.1)

                            Operations supported by REST at the type or instance level.

                            Typecode
                            Is Modifierfalse
                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                            Summaryfalse
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            62. CapabilityStatement.rest.resource.searchParam
                            Definition

                            Search parameters for implementations to support and/or make use of - either references to ones defined in the specification, or additional ones defined for/by the implementation.

                            ShortSearch parameters supported by implementation
                            Comments

                            The search parameters should include the control search parameters such as _sort, _count, etc. that also apply to this resource (though many will be listed at CapabilityStatement.rest.searchParam). The behavior of some search parameters may be further described by other code or extension elements, or narrative within the capability statement or linked SearchParameter definitions.

                            Control0..*
                            TypeBackboneElement
                            Is Modifierfalse
                            Summaryfalse
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            64. CapabilityStatement.rest.resource.searchParam.extension
                            Definition

                            An Extension


                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                            ShortExtensionAdditional 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.

                            Control0..*
                            TypeExtension
                            Is Modifierfalse
                            Summaryfalse
                            Alternate Namesextensions, user content
                            Invariantsele-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())
                            SlicingThis element introduces a set of slices on CapabilityStatement.rest.resource.searchParam.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                            • value @ url
                            • 66. CapabilityStatement.rest.resource.searchParam.extension:feature
                              Slice Namefeature
                              Definition

                              This extension documents the features of a system using code/value pairs

                              ShortExtension
                              Control0..*
                              This element is affected by the following invariants: ele-1
                              TypeExtension(Feature) (Complex Extension)
                              Is Modifierfalse
                              Must Supporttrue
                              Invariantsele-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())
                              68. CapabilityStatement.rest.resource.searchParam.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).

                              ShortExtensions 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.

                              Control0..*
                              TypeExtension
                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                              Summarytrue
                              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 Namesextensions, user content, modifiers
                              Invariantsele-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())
                              70. CapabilityStatement.rest.resource.searchParam.name
                              Definition

                              The name of the search parameter used in the interface.

                              ShortName of search parameter
                              Comments

                              Parameter names cannot overlap with standard parameter names, and standard parameters cannot be redefined.

                              Control1..1
                              Typestring
                              Is Modifierfalse
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              Summaryfalse
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              72. CapabilityStatement.rest.resource.searchParam.type
                              Definition

                              The type of value a search parameter refers to, and how the content is interpreted.

                              Shortnumber | date | string | token | reference | composite | quantity | uri | special
                              Comments

                              While this can be looked up from the definition, it is included here as a convenience for systems that autogenerate a query interface based on the server capability statement. It SHALL be the same as the type in the search parameter definition.

                              Control1..1
                              BindingThe codes SHALL be taken from SearchParamTypehttp://hl7.org/fhir/ValueSet/search-param-type|4.0.1
                              (required to http://hl7.org/fhir/ValueSet/search-param-type|4.0.1)

                              Data types allowed to be used for search parameters.

                              Typecode
                              Is Modifierfalse
                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                              Summaryfalse
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              74. CapabilityStatement.rest.resource.operation
                              Definition

                              Definition of an operation or a named query together with its parameters and their meaning and type. Consult the definition of the operation for details about how to invoke the operation, and the parameters.

                              ShortDefinition of a resource operation
                              Comments

                              Operations linked from CapabilityStatement.rest.resource.operation must have OperationDefinition.type = true or OperationDefinition.instance = true.

                              If an operation that is listed in multiple CapabilityStatement.rest.resource.operation (e.g. for different resource types), then clients should understand that the operation is only supported on the specified resource types, and that may be a subset of those listed in OperationDefinition.resource.

                              Control0..*
                              TypeBackboneElement
                              Is Modifierfalse
                              Summarytrue
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              76. CapabilityStatement.rest.resource.operation.extension
                              Definition

                              An Extension


                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                              ShortExtensionAdditional 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.

                              Control0..*
                              TypeExtension
                              Is Modifierfalse
                              Summaryfalse
                              Alternate Namesextensions, user content
                              Invariantsele-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())
                              SlicingThis element introduces a set of slices on CapabilityStatement.rest.resource.operation.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                              • value @ url
                              • 78. CapabilityStatement.rest.resource.operation.extension:feature
                                Slice Namefeature
                                Definition

                                This extension documents the features of a system using code/value pairs

                                ShortExtension
                                Control0..*
                                This element is affected by the following invariants: ele-1
                                TypeExtension(Feature) (Complex Extension)
                                Is Modifierfalse
                                Must Supporttrue
                                Invariantsele-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())
                                80. CapabilityStatement.rest.resource.operation.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).

                                ShortExtensions 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.

                                Control0..*
                                TypeExtension
                                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                Summarytrue
                                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 Namesextensions, user content, modifiers
                                Invariantsele-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())
                                82. CapabilityStatement.rest.resource.operation.name
                                Definition

                                The name of the operation or query. For an operation, this is the name prefixed with $ and used in the URL. For a query, this is the name used in the _query parameter when the query is called.

                                ShortName by which the operation/query is invoked
                                Comments

                                The name here SHOULD be the same as the name in the definition, unless there is a name clash and the name cannot be used. The name does not include the "$" portion that is always included in the URL.

                                Control1..1
                                Typestring
                                Is Modifierfalse
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                84. CapabilityStatement.rest.resource.operation.definition
                                Definition

                                Where the formal definition can be found. If a server references the base definition of an Operation (i.e. from the specification itself such as http://hl7.org/fhir/OperationDefinition/ValueSet-expand), that means it supports the full capabilities of the operation - e.g. both GET and POST invocation. If it only supports a subset, it must define its own custom OperationDefinition with a 'base' of the original OperationDefinition. The custom definition would describe the specific subset of functionality supported.

                                ShortThe defined operation/query
                                Comments

                                This can be used to build an HTML form to invoke the operation, for instance.

                                Control1..1
                                Typecanonical(OperationDefinition)
                                Is Modifierfalse
                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                Summarytrue
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                86. CapabilityStatement.rest.interaction
                                Definition

                                A specification of restful operations supported by the system.

                                ShortWhat operations are supported?
                                Control0..*
                                TypeBackboneElement
                                Is Modifierfalse
                                Summaryfalse
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                88. CapabilityStatement.rest.interaction.extension
                                Definition

                                An Extension


                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                ShortExtensionAdditional 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.

                                Control0..*
                                TypeExtension
                                Is Modifierfalse
                                Summaryfalse
                                Alternate Namesextensions, user content
                                Invariantsele-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())
                                SlicingThis element introduces a set of slices on CapabilityStatement.rest.interaction.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                • value @ url
                                • 90. CapabilityStatement.rest.interaction.extension:feature
                                  Slice Namefeature
                                  Definition

                                  This extension documents the features of a system using code/value pairs

                                  ShortExtension
                                  Control0..*
                                  This element is affected by the following invariants: ele-1
                                  TypeExtension(Feature) (Complex Extension)
                                  Is Modifierfalse
                                  Must Supporttrue
                                  Invariantsele-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())
                                  92. CapabilityStatement.rest.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 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).

                                  ShortExtensions 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.

                                  Control0..*
                                  TypeExtension
                                  Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                  Summarytrue
                                  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 Namesextensions, user content, modifiers
                                  Invariantsele-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())
                                  94. CapabilityStatement.rest.interaction.code
                                  Definition

                                  A coded identifier of the operation, supported by the system.

                                  Shorttransaction | batch | search-system | history-system
                                  Control1..1
                                  BindingThe codes SHALL be taken from SystemRestfulInteractionhttp://hl7.org/fhir/ValueSet/system-restful-interaction|4.0.1
                                  (required to http://hl7.org/fhir/ValueSet/system-restful-interaction|4.0.1)

                                  Operations supported by REST at the system level.

                                  Typecode
                                  Is Modifierfalse
                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                  Summaryfalse
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  96. CapabilityStatement.messaging
                                  Definition

                                  A description of the messaging capabilities of the solution.

                                  ShortIf messaging is supported
                                  Comments

                                  Multiple repetitions allow the documentation of multiple endpoints per solution.

                                  Control0..*
                                  This element is affected by the following invariants: cpb-1
                                  TypeBackboneElement
                                  Is Modifierfalse
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  98. CapabilityStatement.messaging.extension
                                  Definition

                                  An Extension


                                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                  ShortExtensionAdditional 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.

                                  Control0..*
                                  TypeExtension
                                  Is Modifierfalse
                                  Summaryfalse
                                  Alternate Namesextensions, user content
                                  Invariantsele-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())
                                  SlicingThis element introduces a set of slices on CapabilityStatement.messaging.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                  • value @ url
                                  • 100. CapabilityStatement.messaging.extension:feature
                                    Slice Namefeature
                                    Definition

                                    This extension documents the features of a system using code/value pairs

                                    ShortExtension
                                    Control0..*
                                    This element is affected by the following invariants: ele-1
                                    TypeExtension(Feature) (Complex Extension)
                                    Is Modifierfalse
                                    Must Supporttrue
                                    Invariantsele-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. CapabilityStatement.messaging.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).

                                    ShortExtensions 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.

                                    Control0..*
                                    TypeExtension
                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                    Summarytrue
                                    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 Namesextensions, user content, modifiers
                                    Invariantsele-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. CapabilityStatement.document
                                    Definition

                                    A document definition.

                                    ShortDocument definition
                                    Control0..*
                                    This element is affected by the following invariants: cpb-1
                                    TypeBackboneElement
                                    Is Modifierfalse
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    106. CapabilityStatement.document.extension
                                    Definition

                                    An Extension


                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                    ShortExtensionAdditional 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.

                                    Control0..*
                                    TypeExtension
                                    Is Modifierfalse
                                    Summaryfalse
                                    Alternate Namesextensions, user content
                                    Invariantsele-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())
                                    SlicingThis element introduces a set of slices on CapabilityStatement.document.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                    • value @ url
                                    • 108. CapabilityStatement.document.extension:feature
                                      Slice Namefeature
                                      Definition

                                      This extension documents the features of a system using code/value pairs

                                      ShortExtension
                                      Control0..*
                                      This element is affected by the following invariants: ele-1
                                      TypeExtension(Feature) (Complex Extension)
                                      Is Modifierfalse
                                      Must Supporttrue
                                      Invariantsele-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())
                                      110. CapabilityStatement.document.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).

                                      ShortExtensions 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.

                                      Control0..*
                                      TypeExtension
                                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                      Summarytrue
                                      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 Namesextensions, user content, modifiers
                                      Invariantsele-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())
                                      112. CapabilityStatement.document.mode
                                      Definition

                                      Mode of this document declaration - whether an application is a producer or consumer.

                                      Shortproducer | consumer
                                      Control1..1
                                      BindingThe codes SHALL be taken from DocumentModehttp://hl7.org/fhir/ValueSet/document-mode|4.0.1
                                      (required to http://hl7.org/fhir/ValueSet/document-mode|4.0.1)

                                      Whether the application produces or consumes documents.

                                      Typecode
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      114. CapabilityStatement.document.profile
                                      Definition

                                      A profile on the document Bundle that constrains which resources are present, and their contents.

                                      ShortConstraint on the resources used in the document
                                      Comments

                                      The profile is actually on the Bundle.

                                      Control1..1
                                      Typecanonical(StructureDefinition)
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-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. CapabilityStatement
                                      Definition

                                      A Capability Statement documents a set of capabilities (behaviors) of a FHIR Server for a particular version of FHIR that may be used as a statement of actual server functionality or a statement of required or desired server implementation.

                                      ShortA statement of system capabilities
                                      Comments

                                      Applications may implement multiple versions (see Managing Multiple Versions, and the $versions operation). If they do, then a CapabilityStatement describes the system's support for a particular version of FHIR, and the server will have multiple statements, one for each version.

                                      Control0..*
                                      Is Modifierfalse
                                      Summaryfalse
                                      Invariantscpb-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}'))
                                      cpb-1: A Capability Statement SHALL have at least one of REST, messaging or document element. (rest.exists() or messaging.exists() or document.exists())
                                      cpb-2: A Capability Statement SHALL have at least one of description, software, or implementation element. ((description.count() + software.count() + implementation.count()) > 0)
                                      cpb-3: Messaging end-point is required (and is only permitted) when a statement is for an implementation. (messaging.endpoint.empty() or kind = 'instance')
                                      cpb-7: The set of documents must be unique by the combination of profile and mode. (document.select(profile&mode).isDistinct())
                                      cpb-14: If kind = instance, implementation must be present and software may be present ((kind != 'instance') or implementation.exists())
                                      cpb-15: If kind = capability, implementation must be absent, software must be present ((kind != 'capability') or (implementation.exists().not() and software.exists()))
                                      cpb-16: If kind = requirements, implementation and software must be absent ((kind!='requirements') or (implementation.exists().not() and software.exists().not()))
                                      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. CapabilityStatement.id
                                      Definition

                                      The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

                                      ShortLogical 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.

                                      Control0..1
                                      Typeid
                                      Is Modifierfalse
                                      Summarytrue
                                      4. CapabilityStatement.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.

                                      ShortMetadata about the resource
                                      Control0..1
                                      TypeMeta
                                      Is Modifierfalse
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      6. CapabilityStatement.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.

                                      ShortA 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.

                                      Control0..1
                                      Typeuri
                                      Is Modifiertrue 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 ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      8. CapabilityStatement.language
                                      Definition

                                      The base language in which the resource is written.

                                      ShortLanguage 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).

                                      Control0..1
                                      BindingThe codes SHOULD be taken from CommonLanguages
                                      (preferred to http://hl7.org/fhir/ValueSet/languages)

                                      A human language.

                                      Additional BindingsPurpose
                                      AllLanguagesMax Binding
                                      Typecode
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summaryfalse
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      10. CapabilityStatement.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.

                                      ShortText 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.

                                      Control0..1
                                      TypeNarrative
                                      Is Modifierfalse
                                      Summaryfalse
                                      Alternate Namesnarrative, html, xhtml, display
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      12. CapabilityStatement.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.

                                      ShortContained, 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.

                                      Control0..*
                                      TypeResource
                                      Is Modifierfalse
                                      Summaryfalse
                                      Alternate Namesinline resources, anonymous resources, contained resources
                                      14. CapabilityStatement.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 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.

                                      ShortAdditional 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.

                                      Control0..*
                                      TypeExtension
                                      Is Modifierfalse
                                      Summaryfalse
                                      Alternate Namesextensions, user content
                                      Invariantsele-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. CapabilityStatement.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).

                                      ShortExtensions 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.

                                      Control0..*
                                      TypeExtension
                                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
                                      Summaryfalse
                                      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 Namesextensions, user content
                                      Invariantsele-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. CapabilityStatement.url
                                      Definition

                                      An absolute URI that is used to identify this capability statement 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 capability statement is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the capability statement is stored on different servers.

                                      ShortCanonical identifier for this capability statement, 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.

                                      Control0..1
                                      Typeuri
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Requirements

                                      Allows the capability statement to be referenced by a single globally unique identifier.

                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      20. CapabilityStatement.version
                                      Definition

                                      The identifier that is used to identify this version of the capability statement when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the capability statement 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.

                                      ShortBusiness version of the capability statement
                                      Comments

                                      There may be different capability statement 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 capability statement with the format [url]|[version].

                                      NoteThis is a business version Id, not a resource version Id (see discussion)
                                      Control0..1
                                      Typestring
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      22. CapabilityStatement.name
                                      Definition

                                      A natural language name identifying the capability statement. This name should be usable as an identifier for the module by machine processing applications such as code generation.

                                      ShortName for this capability statement (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.

                                      Control0..1
                                      This element is affected by the following invariants: inv-0
                                      Typestring
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Must Supporttrue
                                      Summarytrue
                                      Requirements

                                      Support human navigation and code generation.

                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      24. CapabilityStatement.title
                                      Definition

                                      A short, descriptive, user-friendly title for the capability statement.

                                      ShortName for this capability statement (human friendly)
                                      Comments

                                      This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc.

                                      Control0..1
                                      Typestring
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      26. CapabilityStatement.status
                                      Definition

                                      The status of this capability statement. Enables tracking the life-cycle of the content.

                                      Shortdraft | active | retired | unknown
                                      Comments

                                      Allows filtering of capability statements that are appropriate for use versus not.This is not intended for use with actual capability statements, but where capability statements are used to describe possible or desired systems.

                                      Control1..1
                                      BindingThe codes SHALL be taken from PublicationStatus
                                      (required to http://hl7.org/fhir/ValueSet/publication-status|4.0.1)

                                      The lifecycle status of an artifact.

                                      Typecode
                                      Is Modifiertrue because This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      28. CapabilityStatement.experimental
                                      Definition

                                      A Boolean value to indicate that this capability statement is authored for testing purposes (or education/evaluation/marketing) and is not intended to be used for genuine usage.

                                      ShortFor testing purposes, not real usage
                                      Comments

                                      Allows filtering of capability statements that are appropriate for use versus not.

                                      Control0..1
                                      Typeboolean
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Requirements

                                      Enables experimental content to be developed following the same lifecycle that would be used for a production-level capability statement.

                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      30. CapabilityStatement.date
                                      Definition

                                      The date (and optionally time) when the capability statement 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 capability statement changes.

                                      ShortDate 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 capability statement. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.

                                      Control1..1
                                      TypedateTime
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Alternate NamesRevision Date
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      32. CapabilityStatement.publisher
                                      Definition

                                      The name of the organization or individual that published the capability statement.

                                      ShortName of the publisher (organization or individual)
                                      Comments

                                      Usually an organization but may be an individual. The publisher (or steward) of the capability statement is the organization or individual primarily responsible for the maintenance and upkeep of the capability statement. 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 capability statement. This item SHOULD be populated unless the information is available from context.

                                      Control0..1
                                      Typestring
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Requirements

                                      Helps establish the "authority/credibility" of the capability statement. May also allow for contact.

                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      34. CapabilityStatement.contact
                                      Definition

                                      Contact details to assist a user in finding and communicating with the publisher.

                                      ShortContact details for the publisher
                                      Comments

                                      May be a web site, an email address, a telephone number, etc.

                                      Control0..*
                                      TypeContactDetail
                                      Is Modifierfalse
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      36. CapabilityStatement.description
                                      Definition

                                      A free text natural language description of the capability statement from a consumer's perspective. Typically, this is used when the capability statement describes a desired rather than an actual solution, for example as a formal expression of requirements as part of an RFP.

                                      ShortNatural language description of the capability statement
                                      Comments

                                      This description can be used to capture details such as why the capability statement 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 capability statement 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 capability statement is presumed to be the predominant language in the place the capability statement was created).This does not need to be populated if the description is adequately implied by the software or implementation details.

                                      Control0..1
                                      This element is affected by the following invariants: cpb-2
                                      Typemarkdown
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summaryfalse
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      38. CapabilityStatement.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 capability statement instances.

                                      ShortThe 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.

                                      Control0..*
                                      TypeUsageContext
                                      Is Modifierfalse
                                      Summarytrue
                                      Requirements

                                      Assist in searching for appropriate content.

                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      40. CapabilityStatement.jurisdiction
                                      Definition

                                      A legal or geographic region in which the capability statement is intended to be used.

                                      ShortIntended jurisdiction for capability statement (if applicable)
                                      Comments

                                      It may be possible for the capability statement to be used in jurisdictions other than those for which it was originally designed or intended.

                                      Control0..*
                                      BindingUnless not suitable, these codes SHALL be taken from Jurisdiction ValueSet
                                      (extensible to http://hl7.org/fhir/ValueSet/jurisdiction)

                                      Countries and regions within which this artifact is targeted for use.

                                      TypeCodeableConcept
                                      Is Modifierfalse
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      42. CapabilityStatement.purpose
                                      Definition

                                      Explanation of why this capability statement is needed and why it has been designed as it has.

                                      ShortWhy this capability statement is defined
                                      Comments

                                      This element does not describe the usage of the capability statement. 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 capability statement.

                                      Control0..1
                                      Typemarkdown
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summaryfalse
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      44. CapabilityStatement.copyright
                                      Definition

                                      A copyright statement relating to the capability statement and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the capability statement.

                                      ShortUse and/or publishing restrictions
                                      Control0..1
                                      Typemarkdown
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summaryfalse
                                      Requirements

                                      Consumers must be able to determine any legal restrictions on the use of the capability statement and/or its content.

                                      Alternate NamesLicense, Restrictions
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      46. CapabilityStatement.kind
                                      Definition

                                      The way that this statement is intended to be used, to describe an actual running instance of software, a particular product (kind, not instance of software) or a class of implementation (e.g. a desired purchase).

                                      Shortinstance | capability | requirements
                                      Control1..1
                                      This element is affected by the following invariants: cpb-15
                                      BindingThe codes SHALL be taken from CapabilityStatementKind
                                      (required to http://hl7.org/fhir/ValueSet/capability-statement-kind|4.0.1)

                                      How a capability statement is intended to be used.

                                      Typecode
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Requirements

                                      Allow searching the 3 modes.

                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      48. CapabilityStatement.instantiates
                                      Definition

                                      Reference to a canonical URL of another CapabilityStatement that this software implements. This capability statement is a published API description that corresponds to a business service. The server may actually implement a subset of the capability statement it claims to implement, so the capability statement must specify the full capability details.

                                      ShortCanonical URL of another capability statement this implements
                                      Comments

                                      HL7 defines the following Services: Terminology Service.

                                      Many Implementation Guides define additional services.

                                      Control0..*
                                      Typecanonical(CapabilityStatement)
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      50. CapabilityStatement.imports
                                      Definition

                                      Reference to a canonical URL of another CapabilityStatement that this software adds to. The capability statement automatically includes everything in the other statement, and it is not duplicated, though the server may repeat the same resources, interactions and operations to add additional details to them.

                                      ShortCanonical URL of another capability statement this adds to
                                      Comments

                                      the contents of any directly or indirectly imported CapabilityStatements SHALL NOT overlap, i.e. they cannot refer to the same rest/resource, operations/name, searchparam/name, interaction/code, messaging/endpoint, document/mode pair.

                                      A capability statement that imports another CapabilityStatement automatically instantiates it too (though this is often not a very useful statement for the kinds of CapabilityStatements that are suitable for importing).

                                      Control0..*
                                      Typecanonical(CapabilityStatement)
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      52. CapabilityStatement.software
                                      Definition

                                      Software that is covered by this capability statement. It is used when the capability statement describes the capabilities of a particular software version, independent of an installation.

                                      ShortSoftware that is covered by this capability statement
                                      Control0..1
                                      This element is affected by the following invariants: cpb-2
                                      TypeBackboneElement
                                      Is Modifierfalse
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      54. CapabilityStatement.software.id
                                      Definition

                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                      ShortUnique id for inter-element referencing
                                      Control0..1
                                      Typestring
                                      Is Modifierfalse
                                      XML FormatIn the XML format, this property is represented as an attribute.
                                      Summaryfalse
                                      56. CapabilityStatement.software.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.

                                      ShortAdditional 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.

                                      Control0..*
                                      TypeExtension
                                      Is Modifierfalse
                                      Summaryfalse
                                      Alternate Namesextensions, user content
                                      Invariantsele-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())
                                      58. CapabilityStatement.software.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).

                                      ShortExtensions 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.

                                      Control0..*
                                      TypeExtension
                                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                      Summarytrue
                                      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 Namesextensions, user content, modifiers
                                      Invariantsele-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())
                                      60. CapabilityStatement.software.name
                                      Definition

                                      Name the software is known by.

                                      ShortA name the software is known by
                                      Control1..1
                                      Typestring
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      62. CapabilityStatement.software.version
                                      Definition

                                      The version identifier for the software covered by this statement.

                                      ShortVersion covered by this statement
                                      Comments

                                      If possible, a version should be specified, as statements are likely to be different for different versions of software.

                                      NoteThis is a business version Id, not a resource version Id (see discussion)
                                      Control0..1
                                      Typestring
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      64. CapabilityStatement.software.releaseDate
                                      Definition

                                      Date this version of the software was released.

                                      ShortDate this version was released
                                      Control0..1
                                      TypedateTime
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      66. CapabilityStatement.implementation
                                      Definition

                                      Identifies a specific implementation instance that is described by the capability statement - i.e. a particular installation, rather than the capabilities of a software program.

                                      ShortIf this describes a specific instance
                                      Control0..1
                                      This element is affected by the following invariants: cpb-2, cpb-15
                                      TypeBackboneElement
                                      Is Modifierfalse
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      68. CapabilityStatement.implementation.id
                                      Definition

                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                      ShortUnique id for inter-element referencing
                                      Control0..1
                                      Typestring
                                      Is Modifierfalse
                                      XML FormatIn the XML format, this property is represented as an attribute.
                                      Summaryfalse
                                      70. CapabilityStatement.implementation.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.

                                      ShortAdditional 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.

                                      Control0..*
                                      TypeExtension
                                      Is Modifierfalse
                                      Summaryfalse
                                      Alternate Namesextensions, user content
                                      Invariantsele-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())
                                      72. CapabilityStatement.implementation.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).

                                      ShortExtensions 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.

                                      Control0..*
                                      TypeExtension
                                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                      Summarytrue
                                      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 Namesextensions, user content, modifiers
                                      Invariantsele-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())
                                      74. CapabilityStatement.implementation.description
                                      Definition

                                      Information about the specific installation that this capability statement relates to.

                                      ShortDescribes this specific instance
                                      Control1..1
                                      Typestring
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      76. CapabilityStatement.implementation.url
                                      Definition

                                      An absolute base URL for the implementation. This forms the base for REST interfaces as well as the mailbox and document interfaces.

                                      ShortBase URL for the installation
                                      Control0..1
                                      Typeurl
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      78. CapabilityStatement.implementation.custodian
                                      Definition

                                      The organization responsible for the management of the instance and oversight of the data on the server at the specified URL.

                                      ShortOrganization that manages the data
                                      Control0..1
                                      TypeReference(Organization)
                                      Is Modifierfalse
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      80. CapabilityStatement.fhirVersion
                                      Definition

                                      The version of the FHIR specification that this CapabilityStatement describes (which SHALL be the same as the FHIR version of the CapabilityStatement itself). There is no default value.

                                      ShortFHIR Version the system supports
                                      Comments

                                      Servers may implement multiple versions (see Managing Multiple Versions, and the $versions operation). If they do, and the CapabilityStatement is requested from the server, then this fhirVersion will be either the version requested, or the server's default version.

                                      Control1..1
                                      BindingThe codes SHALL be taken from FHIRVersion
                                      (required to http://hl7.org/fhir/ValueSet/FHIR-version|4.0.1)

                                      All published FHIR Versions.

                                      Typecode
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      82. CapabilityStatement.format
                                      Definition

                                      A list of the formats supported by this implementation using their content types.

                                      Shortformats supported (xml | json | ttl | mime type)
                                      Comments

                                      "xml", "json" and "ttl" are allowed, which describe the simple encodings described in the specification (and imply appropriate bundle support). Otherwise, mime types are legal here.

                                      Control1..*
                                      BindingThe codes SHALL be taken from Mime Types
                                      (required to http://hl7.org/fhir/ValueSet/mimetypes|4.0.1)

                                      The mime type of an attachment. Any valid mime type is allowed.

                                      Typecode
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      84. CapabilityStatement.patchFormat
                                      Definition

                                      A list of the patch formats supported by this implementation using their content types.

                                      ShortPatch formats supported
                                      Comments

                                      At present, the patch mime types application/json-patch+json and application/xml-patch+xml are legal. Generally, if a server supports PATCH, it would be expected to support the patch formats and match the formats it supports, but this is not always possible or necessary.

                                      Control0..*
                                      BindingThe codes SHALL be taken from Mime Types
                                      (required to http://hl7.org/fhir/ValueSet/mimetypes|4.0.1)

                                      The mime type of an attachment. Any valid mime type is allowed.

                                      Typecode
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      86. CapabilityStatement.implementationGuide
                                      Definition

                                      A list of implementation guides that the server does (or should) support in their entirety.

                                      ShortImplementation guides supported
                                      Control0..*
                                      Typecanonical(ImplementationGuide)
                                      Is Modifierfalse
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Summarytrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      88. CapabilityStatement.rest
                                      Definition

                                      A definition of the restful capabilities of the solution, if any.

                                      ShortIf the endpoint is a RESTful one
                                      Comments

                                      Multiple repetitions allow definition of both client and/or server behaviors or possibly behaviors under different configuration settings (for software or requirements statements).

                                      Control0..*
                                      This element is affected by the following invariants: cpb-1
                                      TypeBackboneElement
                                      Is Modifierfalse
                                      Summarytrue
                                      Invariantscpb-9: A given resource can only be described once per RESTful mode. (resource.select(type).isDistinct())
                                      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      90. CapabilityStatement.rest.id
                                      Definition

                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                      ShortUnique id for inter-element referencing
                                      Control0..1
                                      Typestring
                                      Is Modifierfalse
                                      XML FormatIn the XML format, this property is represented as an attribute.
                                      Summaryfalse
                                      92. CapabilityStatement.rest.extension
                                      Definition

                                      An Extension

                                      ShortExtension
                                      Control0..*
                                      TypeExtension
                                      Is Modifierfalse
                                      Summaryfalse
                                      Invariantsele-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())
                                      SlicingThis element introduces a set of slices on CapabilityStatement.rest.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                      • value @ url
                                      • 94. CapabilityStatement.rest.extension:feature
                                        Slice Namefeature
                                        Definition

                                        This extension documents the features of a system using code/value pairs

                                        ShortExtension
                                        Control0..*
                                        This element is affected by the following invariants: ele-1
                                        TypeExtension(Feature) (Complex Extension)
                                        Is Modifierfalse
                                        Must Supporttrue
                                        Invariantsele-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())
                                        96. CapabilityStatement.rest.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).

                                        ShortExtensions 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.

                                        Control0..*
                                        TypeExtension
                                        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                        Summarytrue
                                        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 Namesextensions, user content, modifiers
                                        Invariantsele-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())
                                        98. CapabilityStatement.rest.mode
                                        Definition

                                        Identifies whether this portion of the statement is describing the ability to initiate or receive restful operations.

                                        Shortclient | server
                                        Control1..1
                                        BindingThe codes SHALL be taken from RestfulCapabilityMode
                                        (required to http://hl7.org/fhir/ValueSet/restful-capability-mode|4.0.1)

                                        The mode of a RESTful capability statement.

                                        Typecode
                                        Is Modifierfalse
                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                        Summarytrue
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        100. CapabilityStatement.rest.documentation
                                        Definition

                                        Information about the system's restful capabilities that apply across all applications, such as security.

                                        ShortGeneral description of implementation
                                        Control0..1
                                        Typemarkdown
                                        Is Modifierfalse
                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                        Summaryfalse
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        102. CapabilityStatement.rest.security
                                        Definition

                                        Information about security implementation from an interface perspective - what a client needs to know.

                                        ShortInformation about security of implementation
                                        Control0..1
                                        TypeBackboneElement
                                        Is Modifierfalse
                                        Summarytrue
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        104. CapabilityStatement.rest.security.id
                                        Definition

                                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                        ShortUnique id for inter-element referencing
                                        Control0..1
                                        Typestring
                                        Is Modifierfalse
                                        XML FormatIn the XML format, this property is represented as an attribute.
                                        Summaryfalse
                                        106. CapabilityStatement.rest.security.extension
                                        Definition

                                        An Extension

                                        ShortExtension
                                        Control0..*
                                        TypeExtension
                                        Is Modifierfalse
                                        Summaryfalse
                                        Invariantsele-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())
                                        SlicingThis element introduces a set of slices on CapabilityStatement.rest.security.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                        • value @ url
                                        • 108. CapabilityStatement.rest.security.extension:feature
                                          Slice Namefeature
                                          Definition

                                          This extension documents the features of a system using code/value pairs

                                          ShortExtension
                                          Control0..*
                                          This element is affected by the following invariants: ele-1
                                          TypeExtension(Feature) (Complex Extension)
                                          Is Modifierfalse
                                          Must Supporttrue
                                          Invariantsele-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())
                                          110. CapabilityStatement.rest.security.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).

                                          ShortExtensions 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.

                                          Control0..*
                                          TypeExtension
                                          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                          Summarytrue
                                          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 Namesextensions, user content, modifiers
                                          Invariantsele-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())
                                          112. CapabilityStatement.rest.security.cors
                                          Definition

                                          Server adds CORS headers when responding to requests - this enables Javascript applications to use the server.

                                          ShortAdds CORS Headers (http://enable-cors.org/)
                                          Comments

                                          The easiest CORS headers to add are Access-Control-Allow-Origin: * & Access-Control-Request-Method: GET, POST, PUT, DELETE. All servers SHOULD support CORS.

                                          Control0..1
                                          Typeboolean
                                          Is Modifierfalse
                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                          Summarytrue
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          114. CapabilityStatement.rest.security.service
                                          Definition

                                          Types of security services that are supported/required by the system.

                                          ShortOAuth | SMART-on-FHIR | NTLM | Basic | Kerberos | Certificates
                                          Control0..*
                                          BindingUnless not suitable, these codes SHALL be taken from RestfulSecurityService
                                          (extensible to http://hl7.org/fhir/ValueSet/restful-security-service)

                                          Types of security services used with FHIR.

                                          TypeCodeableConcept
                                          Is Modifierfalse
                                          Summarytrue
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          116. CapabilityStatement.rest.security.description
                                          Definition

                                          General description of how security works.

                                          ShortGeneral description of how security works
                                          Control0..1
                                          Typemarkdown
                                          Is Modifierfalse
                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                          Summaryfalse
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          118. CapabilityStatement.rest.resource
                                          Definition

                                          A specification of the restful capabilities of the solution for a specific resource type.

                                          ShortResource served on the REST interface
                                          Comments

                                          Max of one repetition per resource type.

                                          Control0..*
                                          TypeBackboneElement
                                          Is Modifierfalse
                                          Summarytrue
                                          Invariantscpb-12: Search parameter names must be unique in the context of a resource. (searchParam.select(name).isDistinct())
                                          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          120. CapabilityStatement.rest.resource.id
                                          Definition

                                          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                          ShortUnique id for inter-element referencing
                                          Control0..1
                                          Typestring
                                          Is Modifierfalse
                                          XML FormatIn the XML format, this property is represented as an attribute.
                                          Summaryfalse
                                          122. CapabilityStatement.rest.resource.extension
                                          Definition

                                          An Extension

                                          ShortExtension
                                          Control0..*
                                          TypeExtension
                                          Is Modifierfalse
                                          Summaryfalse
                                          Invariantsele-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())
                                          SlicingThis element introduces a set of slices on CapabilityStatement.rest.resource.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                          • value @ url
                                          • 124. CapabilityStatement.rest.resource.extension:feature
                                            Slice Namefeature
                                            Definition

                                            This extension documents the features of a system using code/value pairs

                                            ShortExtension
                                            Control0..*
                                            This element is affected by the following invariants: ele-1
                                            TypeExtension(Feature) (Complex Extension)
                                            Is Modifierfalse
                                            Must Supporttrue
                                            Invariantsele-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())
                                            126. CapabilityStatement.rest.resource.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).

                                            ShortExtensions 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.

                                            Control0..*
                                            TypeExtension
                                            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                            Summarytrue
                                            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 Namesextensions, user content, modifiers
                                            Invariantsele-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())
                                            128. CapabilityStatement.rest.resource.type
                                            Definition

                                            A type of resource exposed via the restful interface.

                                            ShortA resource type that is supported
                                            Control1..1
                                            BindingThe codes SHALL be taken from ResourceType
                                            (required to http://hl7.org/fhir/ValueSet/resource-types|4.0.1)

                                            One of the resource types defined as part of this version of FHIR.

                                            Typecode
                                            Is Modifierfalse
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            Summarytrue
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            130. CapabilityStatement.rest.resource.profile
                                            Definition

                                            A specification of the profile that describes the solution's overall support for the resource, including any constraints on cardinality, bindings, lengths or other limitations. See further discussion in Using Profiles.

                                            ShortBase System profile for all uses of resource
                                            Comments

                                            The profile applies to all resources of this type - i.e. it is the superset of what is supported by the system.

                                            Control0..1
                                            Typecanonical(StructureDefinition)
                                            Is Modifierfalse
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            Summarytrue
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            132. CapabilityStatement.rest.resource.supportedProfile
                                            Definition

                                            A list of profiles that represent different use cases supported by the system. For a server, "supported by the system" means the system hosts/produces a set of resources that are conformant to a particular profile, and allows clients that use its services to search using this profile and to find appropriate data. For a client, it means the system will search by this profile and process data according to the guidance implicit in the profile. See further discussion in Using Profiles.

                                            ShortProfiles for use cases supported
                                            Comments

                                            Supported profiles are different than the profile that applies to a particular resource in .rest.resource.profile. The resource profile is a general statement of what features of the resource are supported overall by the system - the sum total of the facilities it supports. A supported profile is a deeper statement about the functionality of the data and services provided by the server (or used by the client). A typical case is a laboratory system that produces a set of different reports - this is the list of types of data that it publishes. A key aspect of declaring profiles here is the question of how the client converts knowledge that the server publishes this data into working with the data; the client can inspect individual resources to determine whether they conform to a particular profile, but how does it find the ones that do? It does so by searching using the _profile parameter, so any resources listed here must be valid values for the _profile resource (using the identifier in the target profile).

                                            Control0..*
                                            Typecanonical(StructureDefinition)
                                            Is Modifierfalse
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            Summarytrue
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            134. CapabilityStatement.rest.resource.documentation
                                            Definition

                                            Additional information about the resource type used by the system.

                                            ShortAdditional information about the use of the resource type
                                            Control0..1
                                            Typemarkdown
                                            Is Modifierfalse
                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            136. CapabilityStatement.rest.resource.interaction
                                            Definition

                                            Identifies a restful operation supported by the solution.

                                            ShortWhat operations are supported?
                                            Comments

                                            In general, a Resource will only appear in a CapabilityStatement if the server actually has some capabilities - e.g. there is at least one interaction supported. However interactions can be omitted to support summarization (_summary = true).

                                            Control0..*
                                            TypeBackboneElement
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            138. CapabilityStatement.rest.resource.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.

                                            ShortUnique id for inter-element referencing
                                            Control0..1
                                            Typestring
                                            Is Modifierfalse
                                            XML FormatIn the XML format, this property is represented as an attribute.
                                            Summaryfalse
                                            140. CapabilityStatement.rest.resource.interaction.extension
                                            Definition

                                            An Extension

                                            ShortExtension
                                            Control0..*
                                            TypeExtension
                                            Is Modifierfalse
                                            Summaryfalse
                                            Invariantsele-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())
                                            SlicingThis element introduces a set of slices on CapabilityStatement.rest.resource.interaction.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                            • value @ url
                                            • 142. CapabilityStatement.rest.resource.interaction.extension:feature
                                              Slice Namefeature
                                              Definition

                                              This extension documents the features of a system using code/value pairs

                                              ShortExtension
                                              Control0..*
                                              This element is affected by the following invariants: ele-1
                                              TypeExtension(Feature) (Complex Extension)
                                              Is Modifierfalse
                                              Must Supporttrue
                                              Invariantsele-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())
                                              144. CapabilityStatement.rest.resource.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 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).

                                              ShortExtensions 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.

                                              Control0..*
                                              TypeExtension
                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                              Summarytrue
                                              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 Namesextensions, user content, modifiers
                                              Invariantsele-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())
                                              146. CapabilityStatement.rest.resource.interaction.code
                                              Definition

                                              Coded identifier of the operation, supported by the system resource.

                                              Shortread | vread | update | patch | delete | history-instance | history-type | create | search-type
                                              Control1..1
                                              BindingThe codes SHALL be taken from TypeRestfulInteraction
                                              (required to http://hl7.org/fhir/ValueSet/type-restful-interaction|4.0.1)

                                              Operations supported by REST at the type or instance level.

                                              Typecode
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              148. CapabilityStatement.rest.resource.interaction.documentation
                                              Definition

                                              Guidance specific to the implementation of this operation, such as 'delete is a logical delete' or 'updates are only allowed with version id' or 'creates permitted from pre-authorized certificates only'.

                                              ShortAnything special about operation behavior
                                              Control0..1
                                              Typemarkdown
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summaryfalse
                                              Requirements

                                              REST allows a degree of variability in the implementation of RESTful solutions that is useful for exchange partners to be aware of.

                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              150. CapabilityStatement.rest.resource.versioning
                                              Definition

                                              This field is set to no-version to specify that the system does not support (server) or use (client) versioning for this resource type. If this has some other value, the server must at least correctly track and populate the versionId meta-property on resources. If the value is 'versioned-update', then the server supports all the versioning features, including using e-tags for version integrity in the API.

                                              Shortno-version | versioned | versioned-update
                                              Comments

                                              If a server supports versionIds correctly, it SHOULD support vread too, but is not required to do so.

                                              Control0..1
                                              BindingThe codes SHALL be taken from ResourceVersionPolicy
                                              (required to http://hl7.org/fhir/ValueSet/versioning-policy|4.0.1)

                                              How the system supports versioning for a resource.

                                              Typecode
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              152. CapabilityStatement.rest.resource.readHistory
                                              Definition

                                              A flag for whether the server is able to return past versions as part of the vRead operation.

                                              ShortWhether vRead can return past versions
                                              Comments

                                              It is useful to support the vRead operation for current operations, even if past versions aren't available.

                                              Control0..1
                                              Typeboolean
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              154. CapabilityStatement.rest.resource.updateCreate
                                              Definition

                                              A flag to indicate that the server allows or needs to allow the client to create new identities on the server (that is, the client PUTs to a location where there is no existing resource). Allowing this operation means that the server allows the client to create new identities on the server.

                                              ShortIf update can commit to a new identity
                                              Comments

                                              Allowing the clients to create new identities on the server means that the system administrator needs to have confidence that the clients do not create clashing identities between them. Obviously, if there is only one client, this won't happen. While creating identities on the client means that the clients need to be managed, it's much more convenient for many scenarios if such management can be put in place.

                                              Control0..1
                                              Typeboolean
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              156. CapabilityStatement.rest.resource.conditionalCreate
                                              Definition

                                              A flag that indicates that the server supports conditional create.

                                              ShortIf allows/uses conditional create
                                              Comments

                                              Conditional Create is mainly appropriate for interface engine scripts converting from other formats, such as v2.

                                              Control0..1
                                              Typeboolean
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              158. CapabilityStatement.rest.resource.conditionalRead
                                              Definition

                                              A code that indicates how the server supports conditional read.

                                              Shortnot-supported | modified-since | not-match | full-support
                                              Comments

                                              Conditional Read is mainly appropriate for interface engine scripts converting from other formats, such as v2.

                                              Control0..1
                                              BindingThe codes SHALL be taken from ConditionalReadStatus
                                              (required to http://hl7.org/fhir/ValueSet/conditional-read-status|4.0.1)

                                              A code that indicates how the server supports conditional read.

                                              Typecode
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              160. CapabilityStatement.rest.resource.conditionalUpdate
                                              Definition

                                              A flag that indicates that the server supports conditional update.

                                              ShortIf allows/uses conditional update
                                              Comments

                                              Conditional Update is mainly appropriate for interface engine scripts converting from other formats, such as v2.

                                              Control0..1
                                              Typeboolean
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              162. CapabilityStatement.rest.resource.conditionalDelete
                                              Definition

                                              A code that indicates how the server supports conditional delete.

                                              Shortnot-supported | single | multiple - how conditional delete is supported
                                              Comments

                                              Conditional Delete is mainly appropriate for interface engine scripts converting from other formats, such as v2.

                                              Control0..1
                                              BindingThe codes SHALL be taken from ConditionalDeleteStatus
                                              (required to http://hl7.org/fhir/ValueSet/conditional-delete-status|4.0.1)

                                              A code that indicates how the server supports conditional delete.

                                              Typecode
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              164. CapabilityStatement.rest.resource.referencePolicy
                                              Definition

                                              A set of flags that defines how references are supported.

                                              Shortliteral | logical | resolves | enforced | local
                                              Control0..*
                                              BindingThe codes SHALL be taken from ReferenceHandlingPolicy
                                              (required to http://hl7.org/fhir/ValueSet/reference-handling-policy|4.0.1)

                                              A set of flags that defines how references are supported.

                                              Typecode
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              166. CapabilityStatement.rest.resource.searchInclude
                                              Definition

                                              A list of _include values supported by the server.

                                              Short_include values supported by the server
                                              Comments

                                              If this list is empty, the server does not support includes.

                                              Control0..*
                                              Typestring
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              168. CapabilityStatement.rest.resource.searchRevInclude
                                              Definition

                                              A list of _revinclude (reverse include) values supported by the server.

                                              Short_revinclude values supported by the server
                                              Comments

                                              If this list is empty, the server does not support reverse includes.

                                              Control0..*
                                              Typestring
                                              Is Modifierfalse
                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              170. CapabilityStatement.rest.resource.searchParam
                                              Definition

                                              Search parameters for implementations to support and/or make use of - either references to ones defined in the specification, or additional ones defined for/by the implementation.

                                              ShortSearch parameters supported by implementation
                                              Comments

                                              The search parameters should include the control search parameters such as _sort, _count, etc. that also apply to this resource (though many will be listed at CapabilityStatement.rest.searchParam). The behavior of some search parameters may be further described by other code or extension elements, or narrative within the capability statement or linked SearchParameter definitions.

                                              Control0..*
                                              TypeBackboneElement
                                              Is Modifierfalse
                                              Summaryfalse
                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                              172. CapabilityStatement.rest.resource.searchParam.id
                                              Definition

                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                              ShortUnique id for inter-element referencing
                                              Control0..1
                                              Typestring
                                              Is Modifierfalse
                                              XML FormatIn the XML format, this property is represented as an attribute.
                                              Summaryfalse
                                              174. CapabilityStatement.rest.resource.searchParam.extension
                                              Definition

                                              An Extension

                                              ShortExtension
                                              Control0..*
                                              TypeExtension
                                              Is Modifierfalse
                                              Summaryfalse
                                              Invariantsele-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())
                                              SlicingThis element introduces a set of slices on CapabilityStatement.rest.resource.searchParam.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                              • value @ url
                                              • 176. CapabilityStatement.rest.resource.searchParam.extension:feature
                                                Slice Namefeature
                                                Definition

                                                This extension documents the features of a system using code/value pairs

                                                ShortExtension
                                                Control0..*
                                                This element is affected by the following invariants: ele-1
                                                TypeExtension(Feature) (Complex Extension)
                                                Is Modifierfalse
                                                Must Supporttrue
                                                Invariantsele-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())
                                                178. CapabilityStatement.rest.resource.searchParam.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).

                                                ShortExtensions 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.

                                                Control0..*
                                                TypeExtension
                                                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                Summarytrue
                                                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 Namesextensions, user content, modifiers
                                                Invariantsele-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())
                                                180. CapabilityStatement.rest.resource.searchParam.name
                                                Definition

                                                The name of the search parameter used in the interface.

                                                ShortName of search parameter
                                                Comments

                                                Parameter names cannot overlap with standard parameter names, and standard parameters cannot be redefined.

                                                Control1..1
                                                Typestring
                                                Is Modifierfalse
                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                Summaryfalse
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                182. CapabilityStatement.rest.resource.searchParam.definition
                                                Definition

                                                An absolute URI that is a formal reference to where this parameter was first defined, so that a client can be confident of the meaning of the search parameter (a reference to SearchParameter.url). This element SHALL be populated if the search parameter refers to a SearchParameter defined by the FHIR core specification or externally defined IGs.

                                                ShortSource of definition for parameter
                                                Comments

                                                This SHOULD be present, and matches refers to a SearchParameter by its canonical URL. If systems wish to document their support for modifiers, comparators, target resource types, and chained parameters, they should do using a search parameter resource. This element SHALL be populated if the search parameter refers to a SearchParameter defined by the FHIR core specification or externally defined IGs.

                                                Control0..1
                                                Typecanonical(SearchParameter)
                                                Is Modifierfalse
                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                Summaryfalse
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                184. CapabilityStatement.rest.resource.searchParam.type
                                                Definition

                                                The type of value a search parameter refers to, and how the content is interpreted.

                                                Shortnumber | date | string | token | reference | composite | quantity | uri | special
                                                Comments

                                                While this can be looked up from the definition, it is included here as a convenience for systems that autogenerate a query interface based on the server capability statement. It SHALL be the same as the type in the search parameter definition.

                                                Control1..1
                                                BindingThe codes SHALL be taken from SearchParamType
                                                (required to http://hl7.org/fhir/ValueSet/search-param-type|4.0.1)

                                                Data types allowed to be used for search parameters.

                                                Typecode
                                                Is Modifierfalse
                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                Summaryfalse
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                186. CapabilityStatement.rest.resource.searchParam.documentation
                                                Definition

                                                This allows documentation of any distinct behaviors about how the search parameter is used. For example, text matching algorithms.

                                                ShortServer-specific usage
                                                Control0..1
                                                Typemarkdown
                                                Is Modifierfalse
                                                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                Summaryfalse
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                188. CapabilityStatement.rest.resource.operation
                                                Definition

                                                Definition of an operation or a named query together with its parameters and their meaning and type. Consult the definition of the operation for details about how to invoke the operation, and the parameters.

                                                ShortDefinition of a resource operation
                                                Comments

                                                Operations linked from CapabilityStatement.rest.resource.operation must have OperationDefinition.type = true or OperationDefinition.instance = true.

                                                If an operation that is listed in multiple CapabilityStatement.rest.resource.operation (e.g. for different resource types), then clients should understand that the operation is only supported on the specified resource types, and that may be a subset of those listed in OperationDefinition.resource.

                                                Control0..*
                                                TypeBackboneElement
                                                Is Modifierfalse
                                                Summarytrue
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                190. CapabilityStatement.rest.resource.operation.id
                                                Definition

                                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                ShortUnique id for inter-element referencing
                                                Control0..1
                                                Typestring
                                                Is Modifierfalse
                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                Summaryfalse
                                                192. CapabilityStatement.rest.resource.operation.extension
                                                Definition

                                                An Extension

                                                ShortExtension
                                                Control0..*
                                                TypeExtension
                                                Is Modifierfalse
                                                Summaryfalse
                                                Invariantsele-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())
                                                SlicingThis element introduces a set of slices on CapabilityStatement.rest.resource.operation.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                • value @ url
                                                • 194. CapabilityStatement.rest.resource.operation.extension:feature
                                                  Slice Namefeature
                                                  Definition

                                                  This extension documents the features of a system using code/value pairs

                                                  ShortExtension
                                                  Control0..*
                                                  This element is affected by the following invariants: ele-1
                                                  TypeExtension(Feature) (Complex Extension)
                                                  Is Modifierfalse
                                                  Must Supporttrue
                                                  Invariantsele-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())
                                                  196. CapabilityStatement.rest.resource.operation.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).

                                                  ShortExtensions 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.

                                                  Control0..*
                                                  TypeExtension
                                                  Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                  Summarytrue
                                                  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 Namesextensions, user content, modifiers
                                                  Invariantsele-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())
                                                  198. CapabilityStatement.rest.resource.operation.name
                                                  Definition

                                                  The name of the operation or query. For an operation, this is the name prefixed with $ and used in the URL. For a query, this is the name used in the _query parameter when the query is called.

                                                  ShortName by which the operation/query is invoked
                                                  Comments

                                                  The name here SHOULD be the same as the name in the definition, unless there is a name clash and the name cannot be used. The name does not include the "$" portion that is always included in the URL.

                                                  Control1..1
                                                  Typestring
                                                  Is Modifierfalse
                                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                  Summarytrue
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  200. CapabilityStatement.rest.resource.operation.definition
                                                  Definition

                                                  Where the formal definition can be found. If a server references the base definition of an Operation (i.e. from the specification itself such as http://hl7.org/fhir/OperationDefinition/ValueSet-expand), that means it supports the full capabilities of the operation - e.g. both GET and POST invocation. If it only supports a subset, it must define its own custom OperationDefinition with a 'base' of the original OperationDefinition. The custom definition would describe the specific subset of functionality supported.

                                                  ShortThe defined operation/query
                                                  Comments

                                                  This can be used to build an HTML form to invoke the operation, for instance.

                                                  Control1..1
                                                  Typecanonical(OperationDefinition)
                                                  Is Modifierfalse
                                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                  Summarytrue
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  202. CapabilityStatement.rest.resource.operation.documentation
                                                  Definition

                                                  Documentation that describes anything special about the operation behavior, possibly detailing different behavior for system, type and instance-level invocation of the operation.

                                                  ShortSpecific details about operation behavior
                                                  Control0..1
                                                  Typemarkdown
                                                  Is Modifierfalse
                                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                  Summaryfalse
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  204. CapabilityStatement.rest.interaction
                                                  Definition

                                                  A specification of restful operations supported by the system.

                                                  ShortWhat operations are supported?
                                                  Control0..*
                                                  TypeBackboneElement
                                                  Is Modifierfalse
                                                  Summaryfalse
                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  206. CapabilityStatement.rest.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.

                                                  ShortUnique id for inter-element referencing
                                                  Control0..1
                                                  Typestring
                                                  Is Modifierfalse
                                                  XML FormatIn the XML format, this property is represented as an attribute.
                                                  Summaryfalse
                                                  208. CapabilityStatement.rest.interaction.extension
                                                  Definition

                                                  An Extension

                                                  ShortExtension
                                                  Control0..*
                                                  TypeExtension
                                                  Is Modifierfalse
                                                  Summaryfalse
                                                  Invariantsele-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())
                                                  SlicingThis element introduces a set of slices on CapabilityStatement.rest.interaction.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                  • value @ url
                                                  • 210. CapabilityStatement.rest.interaction.extension:feature
                                                    Slice Namefeature
                                                    Definition

                                                    This extension documents the features of a system using code/value pairs

                                                    ShortExtension
                                                    Control0..*
                                                    This element is affected by the following invariants: ele-1
                                                    TypeExtension(Feature) (Complex Extension)
                                                    Is Modifierfalse
                                                    Must Supporttrue
                                                    Invariantsele-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())
                                                    212. CapabilityStatement.rest.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 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).

                                                    ShortExtensions 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.

                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                    Summarytrue
                                                    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 Namesextensions, user content, modifiers
                                                    Invariantsele-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())
                                                    214. CapabilityStatement.rest.interaction.code
                                                    Definition

                                                    A coded identifier of the operation, supported by the system.

                                                    Shorttransaction | batch | search-system | history-system
                                                    Control1..1
                                                    BindingThe codes SHALL be taken from SystemRestfulInteraction
                                                    (required to http://hl7.org/fhir/ValueSet/system-restful-interaction|4.0.1)

                                                    Operations supported by REST at the system level.

                                                    Typecode
                                                    Is Modifierfalse
                                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                    Summaryfalse
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    216. CapabilityStatement.rest.interaction.documentation
                                                    Definition

                                                    Guidance specific to the implementation of this operation, such as limitations on the kind of transactions allowed, or information about system wide search is implemented.

                                                    ShortAnything special about operation behavior
                                                    Control0..1
                                                    Typemarkdown
                                                    Is Modifierfalse
                                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                    Summaryfalse
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    218. CapabilityStatement.rest.searchParam
                                                    Definition

                                                    Search parameters that are supported for searching all resources for implementations to support and/or make use of - either references to ones defined in the specification, or additional ones defined for/by the implementation.

                                                    ShortSearch parameters for searching all resources
                                                    Comments

                                                    Typically, the only search parameters supported for all searches are those that apply to all resources - tags, profiles, text search etc. These search parameters should include the control search parameters such as _sort, _count, etc. that also apply to this resource (though many will be listed at CapabilityStatement.rest.searchParam). The behavior of some search parameters may be further described by other code or extension elements, or narrative within the capability statement or linked SearchParameter definitions.

                                                    Control0..*
                                                    TypeSeettp://hl7.org/fhir/StructureDefinition/CapabilityStatement#CapabilityStatement.rest.resource.searchParam
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    220. CapabilityStatement.rest.operation
                                                    Definition

                                                    Definition of an operation or a named query together with its parameters and their meaning and type.

                                                    ShortDefinition of a system level operation
                                                    Comments

                                                    CapabilityStatement.rest.operation is for operations invoked at the system level, or for operations that are supported across multiple resource types. Operations linked from CapabilityStatement.rest.operation must have OperationDefinition.system = true, or more than one Operation.resource.

                                                    Control0..*
                                                    TypeSeettp://hl7.org/fhir/StructureDefinition/CapabilityStatement#CapabilityStatement.rest.resource.operation
                                                    Is Modifierfalse
                                                    Summarytrue
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    222. CapabilityStatement.rest.compartment
                                                    Definition

                                                    An absolute URI which is a reference to the definition of a compartment that the system supports. The reference is to a CompartmentDefinition resource by its canonical URL .

                                                    ShortCompartments served/used by system
                                                    Comments

                                                    At present, the only defined compartments are at CompartmentDefinition.

                                                    Control0..*
                                                    Typecanonical(CompartmentDefinition)
                                                    Is Modifierfalse
                                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                    Summaryfalse
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    224. CapabilityStatement.messaging
                                                    Definition

                                                    A description of the messaging capabilities of the solution.

                                                    ShortIf messaging is supported
                                                    Comments

                                                    Multiple repetitions allow the documentation of multiple endpoints per solution.

                                                    Control0..*
                                                    This element is affected by the following invariants: cpb-1
                                                    TypeBackboneElement
                                                    Is Modifierfalse
                                                    Summarytrue
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    226. CapabilityStatement.messaging.id
                                                    Definition

                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                    ShortUnique id for inter-element referencing
                                                    Control0..1
                                                    Typestring
                                                    Is Modifierfalse
                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                    Summaryfalse
                                                    228. CapabilityStatement.messaging.extension
                                                    Definition

                                                    An Extension

                                                    ShortExtension
                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Invariantsele-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())
                                                    SlicingThis element introduces a set of slices on CapabilityStatement.messaging.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                    • value @ url
                                                    • 230. CapabilityStatement.messaging.extension:feature
                                                      Slice Namefeature
                                                      Definition

                                                      This extension documents the features of a system using code/value pairs

                                                      ShortExtension
                                                      Control0..*
                                                      This element is affected by the following invariants: ele-1
                                                      TypeExtension(Feature) (Complex Extension)
                                                      Is Modifierfalse
                                                      Must Supporttrue
                                                      Invariantsele-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())
                                                      232. CapabilityStatement.messaging.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).

                                                      ShortExtensions 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.

                                                      Control0..*
                                                      TypeExtension
                                                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                      Summarytrue
                                                      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 Namesextensions, user content, modifiers
                                                      Invariantsele-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())
                                                      234. CapabilityStatement.messaging.endpoint
                                                      Definition

                                                      An endpoint (network accessible address) to which messages and/or replies are to be sent.

                                                      ShortWhere messages should be sent
                                                      Control0..*
                                                      TypeBackboneElement
                                                      Is Modifierfalse
                                                      Summaryfalse
                                                      Alternate Names3
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      236. CapabilityStatement.messaging.endpoint.id
                                                      Definition

                                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                      ShortUnique id for inter-element referencing
                                                      Control0..1
                                                      Typestring
                                                      Is Modifierfalse
                                                      XML FormatIn the XML format, this property is represented as an attribute.
                                                      Summaryfalse
                                                      238. CapabilityStatement.messaging.endpoint.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.

                                                      ShortAdditional 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.

                                                      Control0..*
                                                      TypeExtension
                                                      Is Modifierfalse
                                                      Summaryfalse
                                                      Alternate Namesextensions, user content
                                                      Invariantsele-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())
                                                      240. CapabilityStatement.messaging.endpoint.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).

                                                      ShortExtensions 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.

                                                      Control0..*
                                                      TypeExtension
                                                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                      Summarytrue
                                                      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 Namesextensions, user content, modifiers
                                                      Invariantsele-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())
                                                      242. CapabilityStatement.messaging.endpoint.protocol
                                                      Definition

                                                      A list of the messaging transport protocol(s) identifiers, supported by this endpoint.

                                                      Shorthttp | ftp | mllp +
                                                      Control1..1
                                                      BindingUnless not suitable, these codes SHALL be taken from MessageTransport
                                                      (extensible to http://hl7.org/fhir/ValueSet/message-transport)

                                                      The protocol used for message transport.

                                                      TypeCoding
                                                      Is Modifierfalse
                                                      Summaryfalse
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      244. CapabilityStatement.messaging.endpoint.address
                                                      Definition

                                                      The network address of the endpoint. For solutions that do not use network addresses for routing, it can be just an identifier.

                                                      ShortNetwork address or identifier of the end-point
                                                      Control1..1
                                                      Typeurl
                                                      Is Modifierfalse
                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                      Summaryfalse
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      246. CapabilityStatement.messaging.reliableCache
                                                      Definition

                                                      Length if the receiver's reliable messaging cache in minutes (if a receiver) or how long the cache length on the receiver should be (if a sender).

                                                      ShortReliable Message Cache Length (min)
                                                      Comments

                                                      If this value is missing then the application does not implement (receiver) or depend on (sender) reliable messaging.

                                                      Control0..1
                                                      TypeunsignedInt
                                                      Is Modifierfalse
                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                      Summaryfalse
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      248. CapabilityStatement.messaging.documentation
                                                      Definition

                                                      Documentation about the system's messaging capabilities for this endpoint not otherwise documented by the capability statement. For example, the process for becoming an authorized messaging exchange partner.

                                                      ShortMessaging interface behavior details
                                                      Control0..1
                                                      Typemarkdown
                                                      Is Modifierfalse
                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                      Summaryfalse
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      250. CapabilityStatement.messaging.supportedMessage
                                                      Definition

                                                      References to message definitions for messages this system can send or receive.

                                                      ShortMessages supported by this system
                                                      Comments

                                                      This is a proposed alternative to the messaging.event structure.

                                                      Control0..*
                                                      TypeBackboneElement
                                                      Is Modifierfalse
                                                      Summarytrue
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      252. CapabilityStatement.messaging.supportedMessage.id
                                                      Definition

                                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                      ShortUnique id for inter-element referencing
                                                      Control0..1
                                                      Typestring
                                                      Is Modifierfalse
                                                      XML FormatIn the XML format, this property is represented as an attribute.
                                                      Summaryfalse
                                                      254. CapabilityStatement.messaging.supportedMessage.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.

                                                      ShortAdditional 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.

                                                      Control0..*
                                                      TypeExtension
                                                      Is Modifierfalse
                                                      Summaryfalse
                                                      Alternate Namesextensions, user content
                                                      Invariantsele-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())
                                                      256. CapabilityStatement.messaging.supportedMessage.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).

                                                      ShortExtensions 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.

                                                      Control0..*
                                                      TypeExtension
                                                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                      Summarytrue
                                                      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 Namesextensions, user content, modifiers
                                                      Invariantsele-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())
                                                      258. CapabilityStatement.messaging.supportedMessage.mode
                                                      Definition

                                                      The mode of this event declaration - whether application is sender or receiver.

                                                      Shortsender | receiver
                                                      Control1..1
                                                      BindingThe codes SHALL be taken from EventCapabilityMode
                                                      (required to http://hl7.org/fhir/ValueSet/event-capability-mode|4.0.1)

                                                      The mode of a message capability statement.

                                                      Typecode
                                                      Is Modifierfalse
                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                      Summarytrue
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      260. CapabilityStatement.messaging.supportedMessage.definition
                                                      Definition

                                                      Points to a message definition that identifies the messaging event, message structure, allowed responses, etc.

                                                      ShortMessage supported by this system
                                                      Control1..1
                                                      Typecanonical(MessageDefinition)
                                                      Is Modifierfalse
                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                      Summarytrue
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      262. CapabilityStatement.document
                                                      Definition

                                                      A document definition.

                                                      ShortDocument definition
                                                      Control0..*
                                                      This element is affected by the following invariants: cpb-1
                                                      TypeBackboneElement
                                                      Is Modifierfalse
                                                      Summarytrue
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      264. CapabilityStatement.document.id
                                                      Definition

                                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                      ShortUnique id for inter-element referencing
                                                      Control0..1
                                                      Typestring
                                                      Is Modifierfalse
                                                      XML FormatIn the XML format, this property is represented as an attribute.
                                                      Summaryfalse
                                                      266. CapabilityStatement.document.extension
                                                      Definition

                                                      An Extension

                                                      ShortExtension
                                                      Control0..*
                                                      TypeExtension
                                                      Is Modifierfalse
                                                      Summaryfalse
                                                      Invariantsele-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())
                                                      SlicingThis element introduces a set of slices on CapabilityStatement.document.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                      • value @ url
                                                      • 268. CapabilityStatement.document.extension:feature
                                                        Slice Namefeature
                                                        Definition

                                                        This extension documents the features of a system using code/value pairs

                                                        ShortExtension
                                                        Control0..*
                                                        This element is affected by the following invariants: ele-1
                                                        TypeExtension(Feature) (Complex Extension)
                                                        Is Modifierfalse
                                                        Must Supporttrue
                                                        Invariantsele-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())
                                                        270. CapabilityStatement.document.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).

                                                        ShortExtensions 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.

                                                        Control0..*
                                                        TypeExtension
                                                        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                        Summarytrue
                                                        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 Namesextensions, user content, modifiers
                                                        Invariantsele-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())
                                                        272. CapabilityStatement.document.mode
                                                        Definition

                                                        Mode of this document declaration - whether an application is a producer or consumer.

                                                        Shortproducer | consumer
                                                        Control1..1
                                                        BindingThe codes SHALL be taken from DocumentMode
                                                        (required to http://hl7.org/fhir/ValueSet/document-mode|4.0.1)

                                                        Whether the application produces or consumes documents.

                                                        Typecode
                                                        Is Modifierfalse
                                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                        Summarytrue
                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                        274. CapabilityStatement.document.documentation
                                                        Definition

                                                        A description of how the application supports or uses the specified document profile. For example, when documents are created, what action is taken with consumed documents, etc.

                                                        ShortDescription of document support
                                                        Control0..1
                                                        Typemarkdown
                                                        Is Modifierfalse
                                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                        Summaryfalse
                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                        276. CapabilityStatement.document.profile
                                                        Definition

                                                        A profile on the document Bundle that constrains which resources are present, and their contents.

                                                        ShortConstraint on the resources used in the document
                                                        Comments

                                                        The profile is actually on the Bundle.

                                                        Control1..1
                                                        Typecanonical(StructureDefinition)
                                                        Is Modifierfalse
                                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                        Summarytrue
                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))