Extensiondefinition.profile.xml

Profile for extensiondefinition

Raw XML

<Profile xmlns="http://hl7.org/fhir">
  <id value="ExtensionDefinition"/>
  <meta>
    <lastUpdated value="2015-02-23T09:07:27.665+11:00"/>
  </meta>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><!-- Snipped for brevity --></div>
  </text>
  <url value="http://hl7.org/fhir/Profile/ExtensionDefinition"/>
  <name value="ExtensionDefinition"/>
  <publisher value="HL7 FHIR Project (FHIR Management Group)"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org/fhir"/>
    </telecom>
  </contact>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://www.hl7.org/Special/committees/fhirmg/index.cfm"/>
    </telecom>
  </contact>
  <description value="Base Profile for ExtensionDefinition Resource"/>
  <status value="draft"/>
  <date value="2015-02-23T09:07:27+11:00"/>
  <mapping>
    <identity value="v2"/>
    <uri value="http://hl7.org/v2"/>
    <name value="HL7 v2"/>
  </mapping>
  <mapping>
    <identity value="rim"/>
    <uri value="http://hl7.org/v3"/>
    <name value="RIM"/>
  </mapping>
  <type value="ExtensionDefinition"/>
  <snapshot>
    <element>
      <path value="ExtensionDefinition"/>
      <short value="Extension Definition"/>
      <definition value="Defines an extension that can be used in resources."/>
      <synonym value="Extension"/>
      <min value="1"/>
      <max value="1"/>
      <constraint>
        <key value="exd-2"/>
        <name value="Element Path name"/>
        <severity value="error"/>
        <human value="All element names must start with the extension name"/>
        <xpath value="count(f:element)=count(f:element[(not(preceding-sibling::f:element) and f:path/@value='Extension')
         or (preceding-sibling::f:element and starts-with(f:path/@value, concat('Extension', '.')))])"/>
      </constraint>
      <mapping>
        <identity value="v2"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="ExtensionDefinition.id"/>
      <short value="Logical id of this artefact"/>
      <definition value="The logical id of the resource, as used in the url for the resoure. Once assigned, this
       value never changes."/>
      <comments value="The only time that a resource does not have an id is when it is being submitted to the
       server using a create operation. Bundles always have an id, though it is usually a generated
       UUID."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="id"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.meta"/>
      <short value="Metadata about the resource"/>
      <definition value="The metadata about the resource. This is content that is maintained by the infrastructure.
       Changes to the content may not always be associated with version changes to the resource."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Meta"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.implicitRules"/>
      <short value="A set of rules under which this content was created"/>
      <definition value="A reference to a set of rules that were followed when the resource was constructed, and
       which must be understood when processing the content."/>
      <comments value="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 as much as possible."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="uri"/>
      </type>
      <isModifier value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.language"/>
      <short value="Language of the resource content"/>
      <definition value="The base language in which the resource is written."/>
      <comments value="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)."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <name value="Language"/>
        <isExtensible value="false"/>
        <conformance value="required"/>
        <description value="A human language"/>
        <referenceUri value="http://tools.ietf.org/html/bcp47"/>
      </binding>
    </element>
    <element>
      <path value="ExtensionDefinition.text"/>
      <short value="Text summary of the resource, for human interpretation"/>
      <definition value="A human-readable narrative that contains a summary of the resource, and may 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 &quot;clinically
       safe&quot; for a human to just read the narrative. Resource definitions may define what
       content should be represented in the narrative to ensure clinical safety."/>
      <comments value="Contained resources do not have narrative. Resources that are not contained SHOULD have
       a narrative."/>
      <synonym value="narrative"/>
      <synonym value="html"/>
      <synonym value="xhtml"/>
      <synonym value="display"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Narrative"/>
      </type>
      <condition value="dom-1"/>
      <mapping>
        <identity value="rim"/>
        <map value="Act.text?"/>
      </mapping>
    </element>
    <element>
      <path value="ExtensionDefinition.contained"/>
      <short value="Contained, inline Resources"/>
      <definition value="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."/>
      <comments value="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."/>
      <synonym value="inline resources"/>
      <synonym value="anonymous resources"/>
      <synonym value="contained resources"/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Resource"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="ExtensionDefinition.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the resource. In order 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."/>
      <comments value="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."/>
      <synonym value="extensions"/>
      <synonym value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="ExtensionDefinition.modifierExtension"/>
      <short value="Extensions that cannot be ignored"/>
      <definition value="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.
       Usually modifier elements provide negation or qualification. In order 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."/>
      <comments value="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."/>
      <synonym value="extensions"/>
      <synonym value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="ExtensionDefinition.url"/>
      <short value="Literal URL used to reference this extension"/>
      <definition value="The URL at which this definition is (or will be) published, and which is used to reference
       this profile in extension urls in operational FHIR systems."/>
      <requirements value="So you can say, in a profile, what the full extensions URL should be. This is required
       to allow hosting profiles on multiple different servers, and to allow for the editorial
       process."/>
      <synonym value="url"/>
      <synonym value="authoritative-url"/>
      <synonym value="destination"/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="uri"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.identifier"/>
      <short value="Other identifiers for the extension"/>
      <definition value="Formal identifier that is used to identify this profile when it is represented in other
       formats (e.g. ISO 11179(, or referenced in a specification, model, design or an instance
        (should be globally unique OID, UUID, or URI), (if it's not possible to use the literal
       URI)."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Identifier"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.version"/>
      <short value="Logical id for this version of the extension"/>
      <definition value="The identifier that is used to identify this version of the extension definition when
       it is referenced in a specification, model, design or instance. This is an arbitrary value
       managed by the author manually."/>
      <comments value="N/A."/>
      <requirements value="There may be multiple resource versions of the extension definition that have this same
       identifier. The resource version id will change for technical reasons, whereas the stated
       version number needs to be under the author's control."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.name"/>
      <short value="Descriptional name for this profile"/>
      <definition value="A free text natural language name identifying the extension."/>
      <comments value="Not expected to be globally unique."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.display"/>
      <short value="Use this name when displaying the value"/>
      <definition value="Defined so that applications can use this name when displaying the value of the extension
       to the user."/>
      <comments value="Applications don't have to use this name, but can always fall back to it. In the absence
       of a value for this element, use the name."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.publisher"/>
      <short value="Name of the publisher (Organization or individual)"/>
      <definition value="The name of the individual or organization that published the extension definition."/>
      <comments value="Usually an organization, but may be an individual. This item SHOULD be populated unless
       the information is available from context."/>
      <requirements value="Helps establish the &quot;authority/credibility&quot; of the extension definition.  May
       also allow for contact."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.contact"/>
      <short value="Contact details of the publisher"/>
      <definition value="Contacts to assist a user in finding and communicating with the publisher."/>
      <comments value="May be a web site, an email address, a telephone number (tel:), etc."/>
      <min value="0"/>
      <max value="*"/>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.contact.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references)."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="id"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ExtensionDefinition.contact.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the element. In order 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."/>
      <comments value="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."/>
      <synonym value="extensions"/>
      <synonym value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ExtensionDefinition.contact.modifierExtension"/>
      <short value="Extensions that cannot be ignored"/>
      <definition value="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 that contains it. Usually
       modifier elements provide negation or qualification. In order 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."/>
      <comments value="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."/>
      <synonym value="extensions"/>
      <synonym value="user content"/>
      <synonym value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="ExtensionDefinition.contact.name"/>
      <short value="Name of a individual to contact"/>
      <definition value="The name of an individual to contact regarding the extension definition."/>
      <comments value="If there is no named individual, the telecom is for the organization as a whole."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.contact.telecom"/>
      <short value="Contact details for individual or publisher"/>
      <definition value="Contact details for individual (if a name was provided) or the publisher."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="ContactPoint"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.description"/>
      <short value="Natural language description of the extension"/>
      <definition value="A free text natural language description of the extension and its use."/>
      <comments value="This field can be used for things such as comments about misuse, instructions for clinical
       use and interpretation, literature references, examples from the paper world, etc.  It
       is *not* a rendering of the extension definition as conveyed in Profile.text."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.code"/>
      <short value="Assist with indexing and finding"/>
      <definition value="A set of terms from external terminologies that may be used to assist with indexing and
       searching of extension definitions."/>
      <requirements value="Assist in searching for appropriate extensions."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Coding"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.status"/>
      <short value="draft | active | retired"/>
      <definition value="The status of the extension."/>
      <requirements value="Allows filtering of extnsions that are appropriate for use vs. not."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isModifier value="true"/>
      <isSummary value="true"/>
      <binding>
        <name value="ResourceProfileStatus"/>
        <isExtensible value="false"/>
        <conformance value="required"/>
        <description value="The lifecycle status of a Resource Profile"/>
        <referenceReference>
          <reference value="http://hl7.org/fhir/vs/resource-profile-status"/>
        </referenceReference>
      </binding>
    </element>
    <element>
      <path value="ExtensionDefinition.experimental"/>
      <short value="If for testing purposes, not real usage"/>
      <definition value="This extension definition was authored for testing purposes (or education/evaluation/marketing),
       and is not intended to be used for genuine usage."/>
      <requirements value="Allows filtering of extensions that are appropriate for use vs. not."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.date"/>
      <short value="Date for this version of the extension"/>
      <definition value="The date that this version of the extension was published."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="dateTime"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.requirements"/>
      <short value="Scope and Usage this extesion is for"/>
      <definition value="The Scope and Usage that this extension was created to meet."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.mapping"/>
      <short value="External specification that the content is mapped to"/>
      <definition value="An external specification that the content is mapped to."/>
      <min value="0"/>
      <max value="*"/>
      <constraint>
        <key value="exd-1"/>
        <name value="Mapping"/>
        <severity value="error"/>
        <human value="Must have at a name or a uri (or both)"/>
        <xpath value="exists(f:uri) or exists(f:name)"/>
      </constraint>
    </element>
    <element>
      <path value="ExtensionDefinition.mapping.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references)."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="id"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ExtensionDefinition.mapping.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the element. In order 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."/>
      <comments value="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."/>
      <synonym value="extensions"/>
      <synonym value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ExtensionDefinition.mapping.modifierExtension"/>
      <short value="Extensions that cannot be ignored"/>
      <definition value="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 that contains it. Usually
       modifier elements provide negation or qualification. In order 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."/>
      <comments value="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."/>
      <synonym value="extensions"/>
      <synonym value="user content"/>
      <synonym value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="ExtensionDefinition.mapping.identity"/>
      <short value="Internal id when this mapping is used"/>
      <definition value="An Internal id that is used to identify this mapping set when specific mappings are made."/>
      <comments value="The specification is described once, with general comments, and then specific mappings
       are made that reference this declaration in the element definition."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="id"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.mapping.uri"/>
      <short value="Identifies what this mapping refers to"/>
      <definition value="A URI that identifies the specification that this mapping is expressed to."/>
      <comments value="A formal identity for the specification being mapped to helps with identifying maps consistently."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="uri"/>
      </type>
      <condition value="exd-2"/>
    </element>
    <element>
      <path value="ExtensionDefinition.mapping.name"/>
      <short value="Names what this mapping refers to"/>
      <definition value="A name for the specification that is being mapped to."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <condition value="exd-2"/>
    </element>
    <element>
      <path value="ExtensionDefinition.mapping.comments"/>
      <short value="Versions, Issues, Scope limitations etc"/>
      <definition value="Comments about this mapping, including version notes, issues, scope limitations, and other
       important notes for usage."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.contextType"/>
      <short value="resource | datatype | mapping | extension"/>
      <definition value="Identifies the type of context to which the extension applies."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <name value="ExtensionContext"/>
        <isExtensible value="false"/>
        <conformance value="required"/>
        <description value="How an extension context is interpreted"/>
        <referenceReference>
          <reference value="http://hl7.org/fhir/vs/extension-context"/>
        </referenceReference>
      </binding>
    </element>
    <element>
      <path value="ExtensionDefinition.context"/>
      <short value="Where the extension can be used in instances"/>
      <definition value="Identifies the types of resource or data type elements to which the extension can be applied."/>
      <comments value="If the context is an element that can have multiple types, then use (e.g.) value[x] if
       the extension works on all choice types, or otherwise an enumeration of explicitly named
       elements if not. Note that a context of &quot;string&quot; doesn't mean that the extension
       can be used with one of the string patterns such as &quot;id&quot; etc."/>
      <min value="1"/>
      <max value="*"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.element"/>
      <short value="Definition of the elements in the extension"/>
      <definition value="Definition of the elements that are defined to be in the extension."/>
      <min value="1"/>
      <max value="*"/>
      <type>
        <code value="ElementDefinition"/>
      </type>
      <condition value="exd-1"/>
      <constraint>
        <key value="exd-3"/>
        <name value="Element Name"/>
        <severity value="error"/>
        <human value="Path names cannot contain .value"/>
        <xpath value="not(contains(f:path/@value, '.value'))"/>
      </constraint>
    </element>
  </snapshot>
  <differential>
    <element>
      <path value="ExtensionDefinition"/>
      <short value="Extension Definition"/>
      <definition value="Defines an extension that can be used in resources."/>
      <synonym value="Extension"/>
      <min value="1"/>
      <max value="1"/>
      <constraint>
        <key value="exd-2"/>
        <name value="Element Path name"/>
        <severity value="error"/>
        <human value="All element names must start with the extension name"/>
        <xpath value="count(f:element)=count(f:element[(not(preceding-sibling::f:element) and f:path/@value='Extension')
         or (preceding-sibling::f:element and starts-with(f:path/@value, concat('Extension', '.')))])"/>
      </constraint>
      <mapping>
        <identity value="v2"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="ExtensionDefinition.url"/>
      <short value="Literal URL used to reference this extension"/>
      <definition value="The URL at which this definition is (or will be) published, and which is used to reference
       this profile in extension urls in operational FHIR systems."/>
      <requirements value="So you can say, in a profile, what the full extensions URL should be. This is required
       to allow hosting profiles on multiple different servers, and to allow for the editorial
       process."/>
      <synonym value="url"/>
      <synonym value="authoritative-url"/>
      <synonym value="destination"/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="uri"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.identifier"/>
      <short value="Other identifiers for the extension"/>
      <definition value="Formal identifier that is used to identify this profile when it is represented in other
       formats (e.g. ISO 11179(, or referenced in a specification, model, design or an instance
        (should be globally unique OID, UUID, or URI), (if it's not possible to use the literal
       URI)."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Identifier"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.version"/>
      <short value="Logical id for this version of the extension"/>
      <definition value="The identifier that is used to identify this version of the extension definition when
       it is referenced in a specification, model, design or instance. This is an arbitrary value
       managed by the author manually."/>
      <comments value="N/A."/>
      <requirements value="There may be multiple resource versions of the extension definition that have this same
       identifier. The resource version id will change for technical reasons, whereas the stated
       version number needs to be under the author's control."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.name"/>
      <short value="Descriptional name for this profile"/>
      <definition value="A free text natural language name identifying the extension."/>
      <comments value="Not expected to be globally unique."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.display"/>
      <short value="Use this name when displaying the value"/>
      <definition value="Defined so that applications can use this name when displaying the value of the extension
       to the user."/>
      <comments value="Applications don't have to use this name, but can always fall back to it. In the absence
       of a value for this element, use the name."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.publisher"/>
      <short value="Name of the publisher (Organization or individual)"/>
      <definition value="The name of the individual or organization that published the extension definition."/>
      <comments value="Usually an organization, but may be an individual. This item SHOULD be populated unless
       the information is available from context."/>
      <requirements value="Helps establish the &quot;authority/credibility&quot; of the extension definition.  May
       also allow for contact."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.contact"/>
      <short value="Contact details of the publisher"/>
      <definition value="Contacts to assist a user in finding and communicating with the publisher."/>
      <comments value="May be a web site, an email address, a telephone number (tel:), etc."/>
      <min value="0"/>
      <max value="*"/>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.contact.name"/>
      <short value="Name of a individual to contact"/>
      <definition value="The name of an individual to contact regarding the extension definition."/>
      <comments value="If there is no named individual, the telecom is for the organization as a whole."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.contact.telecom"/>
      <short value="Contact details for individual or publisher"/>
      <definition value="Contact details for individual (if a name was provided) or the publisher."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="ContactPoint"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.description"/>
      <short value="Natural language description of the extension"/>
      <definition value="A free text natural language description of the extension and its use."/>
      <comments value="This field can be used for things such as comments about misuse, instructions for clinical
       use and interpretation, literature references, examples from the paper world, etc.  It
       is *not* a rendering of the extension definition as conveyed in Profile.text."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.code"/>
      <short value="Assist with indexing and finding"/>
      <definition value="A set of terms from external terminologies that may be used to assist with indexing and
       searching of extension definitions."/>
      <requirements value="Assist in searching for appropriate extensions."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Coding"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.status"/>
      <short value="draft | active | retired"/>
      <definition value="The status of the extension."/>
      <requirements value="Allows filtering of extnsions that are appropriate for use vs. not."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isModifier value="true"/>
      <isSummary value="true"/>
      <binding>
        <name value="ResourceProfileStatus"/>
        <isExtensible value="false"/>
        <conformance value="required"/>
        <description value="The lifecycle status of a Resource Profile"/>
        <referenceReference>
          <reference value="http://hl7.org/fhir/vs/resource-profile-status"/>
        </referenceReference>
      </binding>
    </element>
    <element>
      <path value="ExtensionDefinition.experimental"/>
      <short value="If for testing purposes, not real usage"/>
      <definition value="This extension definition was authored for testing purposes (or education/evaluation/marketing),
       and is not intended to be used for genuine usage."/>
      <requirements value="Allows filtering of extensions that are appropriate for use vs. not."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.date"/>
      <short value="Date for this version of the extension"/>
      <definition value="The date that this version of the extension was published."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="dateTime"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ExtensionDefinition.requirements"/>
      <short value="Scope and Usage this extesion is for"/>
      <definition value="The Scope and Usage that this extension was created to meet."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.mapping"/>
      <short value="External specification that the content is mapped to"/>
      <definition value="An external specification that the content is mapped to."/>
      <min value="0"/>
      <max value="*"/>
      <constraint>
        <key value="exd-1"/>
        <name value="Mapping"/>
        <severity value="error"/>
        <human value="Must have at a name or a uri (or both)"/>
        <xpath value="exists(f:uri) or exists(f:name)"/>
      </constraint>
    </element>
    <element>
      <path value="ExtensionDefinition.mapping.identity"/>
      <short value="Internal id when this mapping is used"/>
      <definition value="An Internal id that is used to identify this mapping set when specific mappings are made."/>
      <comments value="The specification is described once, with general comments, and then specific mappings
       are made that reference this declaration in the element definition."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="id"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.mapping.uri"/>
      <short value="Identifies what this mapping refers to"/>
      <definition value="A URI that identifies the specification that this mapping is expressed to."/>
      <comments value="A formal identity for the specification being mapped to helps with identifying maps consistently."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="uri"/>
      </type>
      <condition value="exd-2"/>
    </element>
    <element>
      <path value="ExtensionDefinition.mapping.name"/>
      <short value="Names what this mapping refers to"/>
      <definition value="A name for the specification that is being mapped to."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <condition value="exd-2"/>
    </element>
    <element>
      <path value="ExtensionDefinition.mapping.comments"/>
      <short value="Versions, Issues, Scope limitations etc"/>
      <definition value="Comments about this mapping, including version notes, issues, scope limitations, and other
       important notes for usage."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.contextType"/>
      <short value="resource | datatype | mapping | extension"/>
      <definition value="Identifies the type of context to which the extension applies."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <name value="ExtensionContext"/>
        <isExtensible value="false"/>
        <conformance value="required"/>
        <description value="How an extension context is interpreted"/>
        <referenceReference>
          <reference value="http://hl7.org/fhir/vs/extension-context"/>
        </referenceReference>
      </binding>
    </element>
    <element>
      <path value="ExtensionDefinition.context"/>
      <short value="Where the extension can be used in instances"/>
      <definition value="Identifies the types of resource or data type elements to which the extension can be applied."/>
      <comments value="If the context is an element that can have multiple types, then use (e.g.) value[x] if
       the extension works on all choice types, or otherwise an enumeration of explicitly named
       elements if not. Note that a context of &quot;string&quot; doesn't mean that the extension
       can be used with one of the string patterns such as &quot;id&quot; etc."/>
      <min value="1"/>
      <max value="*"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element>
      <path value="ExtensionDefinition.element"/>
      <short value="Definition of the elements in the extension"/>
      <definition value="Definition of the elements that are defined to be in the extension."/>
      <min value="1"/>
      <max value="*"/>
      <type>
        <code value="ElementDefinition"/>
      </type>
      <condition value="exd-1"/>
      <constraint>
        <key value="exd-3"/>
        <name value="Element Name"/>
        <severity value="error"/>
        <human value="Path names cannot contain .value"/>
        <xpath value="not(contains(f:path/@value, '.value'))"/>
      </constraint>
    </element>
  </differential>
</Profile>