FHIR Application Feature Framework Implementation Guide
1.0.0-ballot - STU1 Ballot
FHIR Application Feature Framework Implementation Guide
1.0.0-ballot - STU1 Ballot
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
| Page standards status: Trial-use | Maturity Level: 1 |
XML representation of the FeatureDefinition logical model.
<StructureDefinition xmlns="http://hl7.org/fhir">
<id value="FeatureDefinition"/>
<text>
<status value="extensions"/>
<div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: StructureDefinition FeatureDefinition</b></p><a name="FeatureDefinition"> </a><a name="hcFeatureDefinition"> </a><a name="FeatureDefinition-en-US"> </a><table border="0" cellpadding="0" cellspacing="0" style="border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;"><tr style="border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top"><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="The logical name of the element">Name</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Information about the use of the element">Flags</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Minimum and Maximum # of times the element can appear in the instance">Card.</a></th><th style="width: 100px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Reference to the type of the element">Type</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Additional information about the element">Description & Constraints</a><span style="float: right"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/></a></span></th></tr><tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-FeatureDefinition-definitions.html#FeatureDefinition" title="A definition of a feature that applications may implement, or be required to implement. Features are an aspect of a an applications implementation that
generally impacts on the handling of data received from or provided to from the application, which makes it worth declaring. Once declared, ">FeatureDefinition</a><a name="FeatureDefinition"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R5/canonicalresource.html">CanonicalResource</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><br/>Elements defined in Ancestors:<a href="http://hl7.org/fhir/R5/resource.html" title="The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.">id</a>, <a href="http://hl7.org/fhir/R5/resource.html" title="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.">meta</a>, <a href="http://hl7.org/fhir/R5/resource.html" title="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.">implicitRules</a>, <a href="http://hl7.org/fhir/R5/resource.html" title="The base language in which the resource is written.">language</a>, <a href="http://hl7.org/fhir/R5/domainresource.html" title="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.">text</a>, <a href="http://hl7.org/fhir/R5/domainresource.html" title="These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning.">contained</a>, <a href="http://hl7.org/fhir/R5/domainresource.html" title="May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.">extension</a>, <a href="http://hl7.org/fhir/R5/domainresource.html" title="May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).">modifierExtension</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="An absolute URI that is used to identify this {{title}} 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 an authoritative instance of this {{title}} is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the {{title}} is stored on different servers.">url</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="A formal identifier that is used to identify this {{title}} when it is represented in other formats, or referenced in a specification, model, design or an instance.">identifier</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="The identifier that is used to identify this version of the {{title}} when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the {{title}} 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 without additional knowledge. (See the versionAlgorithm element.)">version</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="Indicates the mechanism used to compare versions to determine which is more current.">versionAlgorithm[x]</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="A natural language name identifying the {{title}}. This name should be usable as an identifier for the resource by machine processing applications such as code generation.">name</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="A short, descriptive, user-friendly title for the {{title}}.">title</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="The current state of this {{title}}. ">status</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="A Boolean value to indicate that this {{title}} is authored for testing purposes (or education/evaluation/marketing) and is not intended for genuine usage.">experimental</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="The date (and optionally time) when the {{title}} was last significantly changed. 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 {{title}} changes.">date</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="The name of the organization or individual responsible for the release and ongoing maintenance of the {{title}}.">publisher</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="Contact details to assist a user in finding and communicating with the publisher.">contact</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="A free text natural language description of the {{title}} from a consumer's perspective.">description</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="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 {{title}}s.">useContext</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="A legal or geographic region in which the {{title}} is intended to be used.">jurisdiction</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="Explanation of why this {{title}} is needed and why it has been designed as it has.">purpose</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="A copyright statement relating to the {{title}} and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the {{title}}.">copyright</a>, <a href="http://hl7.org/fhir/R5/canonicalresource.html" title="A short string (<50 characters), suitable for inclusion in a page footer that identifies the copyright holder, effective period, and optionally whether rights are resctricted. (e.g. 'All rights reserved', 'Some rights reserved').">copyrightLabel</a><br/>Feature Definition<br/><span style="font-weight:bold">Instances of this logical model are not marked to be the target of a Reference</span></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-FeatureDefinition-definitions.html#FeatureDefinition.valueType" title="Features are very boolean: true or false for whether the application implements the feature, but the value
associated with the feature might be a number, a string, or some kind of code">valueType</a><a name="FeatureDefinition.valueType"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..1</td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R5/datatypes.html#code">code</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Type of value associated with the feature<br/><span style="font-weight:bold">Binding: </span><a href="http://hl7.org/fhir/R5/valueset-data-types.html" title="http://hl7.org/fhir/ValueSet/data-types">FHIRTypes</a> (<a href="http://hl7.org/fhir/R5/terminologies.html#required" title="To be conformant, the concept in this element SHALL be from the specified value set.">required</a>)</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-FeatureDefinition-definitions.html#FeatureDefinition.valueSet" title="If a value set is specified, the value of the data type must come from the value set, and the
value type must be one of the bindeable types defined in the FHIR specification">valueSet</a><a name="FeatureDefinition.valueSet"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R5/references.html">canonical</a>(<a href="http://hl7.org/fhir/R5/valueset.html">ValueSet</a>)</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">ValueSet that controls what coded value are allowed</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-FeatureDefinition-definitions.html#FeatureDefinition.context" title="The elements on which this feature can be defined. These URLs take the form or Canonica(StructureDefinition)#{element-id},
where The structure definition is a reference to a FHIR resource - usually CapabilityStatement of TerminologyCapabilities,
and the element-id is a defined element within one of the resources. This is used to state where the feature applies. some
features are defined on applications, but others apply to particular resources, or operations on resources, or particular
code systems etc">context</a><a name="FeatureDefinition.context"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..*</td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R5/datatypes.html#url">url</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">The FHIR elements on which this feature can be defined<br/></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck01.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_datatype.gif" alt="." style="background-color: white; background-color: inherit" title="Data Type" class="hierarchy"/> <a href="StructureDefinition-FeatureDefinition-definitions.html#FeatureDefinition.qualifier" title="A qualifier is an extra piece of information that MAY or SHALL be provided when the feature is described/specified
that provides additional information about the feature. E.g. a feature defined on a resource may only be applicable
to particular events associated with the resource, or ...?">qualifier</a><a name="FeatureDefinition.qualifier"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..*</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R5/types.html#BackboneElement">BackboneElement</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">A qualifier that might provided more information about a feature implementation<br/></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck010.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_blank.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-FeatureDefinition-definitions.html#FeatureDefinition.qualifier.name" title="The name of the feature">name</a><a name="FeatureDefinition.qualifier.name"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..1</td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R5/datatypes.html#code">code</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">The name of the feature</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck010.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_blank.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-FeatureDefinition-definitions.html#FeatureDefinition.qualifier.description" title="A human-readable description of the qualifier.">description</a><a name="FeatureDefinition.qualifier.description"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R5/datatypes.html#string">string</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">A human-readable description of the qualifier.</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck010.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_blank.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-FeatureDefinition-definitions.html#FeatureDefinition.qualifier.valueType" title="Features are very boolean: true or false for whether the application implements the feature, but the value
associated with the feature might be a number, a string, or some kind of code">valueType</a><a name="FeatureDefinition.qualifier.valueType"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..1</td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R5/datatypes.html#code">code</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Type of value associated with the feature<br/><span style="font-weight:bold">Binding: </span><a href="http://hl7.org/fhir/R5/valueset-data-types.html" title="http://hl7.org/fhir/ValueSet/data-types">FHIRTypes</a> (<a href="http://hl7.org/fhir/R5/terminologies.html#required" title="To be conformant, the concept in this element SHALL be from the specified value set.">required</a>)</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck000.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_blank.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-FeatureDefinition-definitions.html#FeatureDefinition.qualifier.optional" title="Whether the feature is optional, or must always be present when a feature is referred to ">optional</a><a name="FeatureDefinition.qualifier.optional"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..1</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R5/datatypes.html#boolean">boolean</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Whether the feature is optional, or must always be present</td></tr>
<tr><td colspan="5" class="hierarchy"><br/><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/> Documentation for this format</a></td></tr></table></div>
</text>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
<valueCode value="fhir"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-interface">
<valueBoolean value="true"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
<valueInteger value="1">
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
<valueCanonical
value="http://hl7.org/fhir/uv/application-feature/ImplementationGuide/hl7.fhir.uv.application-feature"/>
</extension>
</valueInteger>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
<valueCode value="trial-use">
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
<valueCanonical
value="http://hl7.org/fhir/uv/application-feature/ImplementationGuide/hl7.fhir.uv.application-feature"/>
</extension>
</valueCode>
</extension>
<url
value="http://hl7.org/fhir/uv/application-feature/StructureDefinition/FeatureDefinition"/>
<version value="1.0.0-ballot"/>
<name value="FeatureDefinition"/>
<title value="Feature Definition"/>
<status value="active"/>
<date value="2024-11-22T03:12:37+00:00"/>
<publisher value="HL7 International / FHIR Infrastructure"/>
<contact>
<name value="HL7 International / FHIR Infrastructure"/>
<telecom>
<system value="url"/>
<value value="http://www.hl7.org/Special/committees/fiwg"/>
</telecom>
</contact>
<description
value="A definition of a feature that applications may implement, or be required to implement. Features are an aspect of a an applications implementation that
generally impacts on the handling of data received from or provided to from the application, which makes it worth declaring. Once declared, "/>
<jurisdiction>
<coding>
<system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
<code value="001"/>
<display value="World"/>
</coding>
</jurisdiction>
<fhirVersion value="5.0.0"/>
<mapping>
<identity value="w5"/>
<uri value="http://hl7.org/fhir/fivews"/>
<name value="FiveWs Pattern Mapping"/>
</mapping>
<mapping>
<identity value="objimpl"/>
<uri value="http://hl7.org/fhir/object-implementation"/>
<name value="Object Implementation Information"/>
</mapping>
<mapping>
<identity value="rim"/>
<uri value="http://hl7.org/v3"/>
<name value="RIM Mapping"/>
</mapping>
<kind value="logical"/>
<abstract value="false"/>
<type
value="http://hl7.org/fhir/uv/application-feature/StructureDefinition/FeatureDefinition"/>
<baseDefinition
value="http://hl7.org/fhir/StructureDefinition/CanonicalResource"/>
<derivation value="specialization"/>
<snapshot>
<element id="FeatureDefinition">
<path value="FeatureDefinition"/>
<short value="Feature Definition"/>
<definition
value="A definition of a feature that applications may implement, or be required to implement. Features are an aspect of a an applications implementation that
generally impacts on the handling of data received from or provided to from the application, which makes it worth declaring. Once declared, "/>
<min value="1"/>
<max value="1"/>
<base>
<path value="CanonicalResource"/>
<min value="1"/>
<max value="1"/>
</base>
<constraint>
<key value="cnl-0"/>
<severity value="warning"/>
<human
value="Name should be usable as an identifier for the module by machine processing applications such as code generation"/>
<expression
value="name.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$')"/>
<source
value="http://hl7.org/fhir/StructureDefinition/CanonicalResource"/>
</constraint>
<constraint>
<key value="dom-2"/>
<severity value="error"/>
<human
value="If the resource is contained in another resource, it SHALL NOT contain nested Resources"/>
<expression value="contained.contained.empty()"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<key value="dom-3"/>
<severity value="error"/>
<human
value="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"/>
<expression
value="contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().ofType(canonical) | %resource.descendants().ofType(uri) | %resource.descendants().ofType(url))) or descendants().where(reference = '#').exists() or descendants().where(ofType(canonical) = '#').exists() or descendants().where(ofType(canonical) = '#').exists()).not()).trace('unmatched', id).empty()"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<key value="dom-4"/>
<severity value="error"/>
<human
value="If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated"/>
<expression
value="contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<key value="dom-5"/>
<severity value="error"/>
<human
value="If a resource is contained in another resource, it SHALL NOT have a security label"/>
<expression value="contained.meta.security.empty()"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice">
<valueBoolean value="true"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice-explanation">
<valueMarkdown
value="When a resource has no narrative, only systems that fully understand the data can display the resource to a human safely. Including a human readable representation in the resource makes for a much more robust eco-system and cheaper handling of resources by intermediary systems. Some ecosystems restrict distribution of resources to only those systems that do fully understand the resources, and as a consequence implementers may believe that the narrative is superfluous. However experience shows that such eco-systems often open up to new participants over time."/>
</extension>
<key value="dom-6"/>
<severity value="warning"/>
<human
value="A resource should have narrative for robust management"/>
<expression value="text.`div`.exists()"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="Entity, Role, or Act"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="conformance.behavior"/>
</mapping>
</element>
<element id="FeatureDefinition.id">
<path value="FeatureDefinition.id"/>
<short value="Logical id of this artifact"/>
<definition
value="The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes."/>
<comment
value="Within the context of the FHIR RESTful interactions, the resource has an id except for cases like the create and conditional update. Otherwise, the use of the resouce id depends on the given use case."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Resource.id"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
<valueUrl value="id"/>
</extension>
<code value="http://hl7.org/fhirpath/System.String"/>
</type>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
</element>
<element id="FeatureDefinition.meta">
<path value="FeatureDefinition.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 might not always be associated with version changes to the resource."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Resource.meta"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="Meta"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
</element>
<element id="FeatureDefinition.implicitRules">
<path value="FeatureDefinition.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. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc."/>
<comment
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. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of its narrative along with other profiles, value sets, etc."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Resource.implicitRules"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="uri"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="true"/>
<isModifierReason
value="This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies its meaning or interpretation"/>
<isSummary value="true"/>
</element>
<element id="FeatureDefinition.language">
<path value="FeatureDefinition.language"/>
<short value="Language of the resource content"/>
<definition
value="The base language in which the resource is written."/>
<comment
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"/>
<base>
<path value="Resource.language"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="false"/>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="Language"/>
</extension>
<strength value="required"/>
<description value="IETF language tag for a human language"/>
<valueSet value="http://hl7.org/fhir/ValueSet/all-languages|5.0.0"/>
<additional>
<purpose value="starter"/>
<valueSet value="http://hl7.org/fhir/ValueSet/languages"/>
</additional>
</binding>
</element>
<element id="FeatureDefinition.text">
<path value="FeatureDefinition.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 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."/>
<comment
value="Contained resources do not have a narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later."/>
<alias value="narrative"/>
<alias value="html"/>
<alias value="xhtml"/>
<alias value="display"/>
<min value="0"/>
<max value="1"/>
<base>
<path value="DomainResource.text"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="Narrative"/>
</type>
<condition value="dom-6"/>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="Act.text?"/>
</mapping>
</element>
<element id="FeatureDefinition.contained">
<path value="FeatureDefinition.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, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning."/>
<comment
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. Contained resources may have profiles and tags in their meta elements, but SHALL NOT have security labels."/>
<alias value="inline resources"/>
<alias value="anonymous resources"/>
<alias value="contained resources"/>
<min value="0"/>
<max value="*"/>
<base>
<path value="DomainResource.contained"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Resource"/>
</type>
<condition value="dom-2"/>
<condition value="dom-4"/>
<condition value="dom-3"/>
<condition value="dom-5"/>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="FeatureDefinition.extension">
<path value="FeatureDefinition.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. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
<comment
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."/>
<alias value="extensions"/>
<alias value="user content"/>
<min value="0"/>
<max value="*"/>
<base>
<path value="DomainResource.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="FeatureDefinition.modifierExtension">
<path value="FeatureDefinition.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 and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
<comment
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."/>
<requirements
value="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](http://hl7.org/fhir/R5/extensibility.html#modifierExtension)."/>
<alias value="extensions"/>
<alias value="user content"/>
<min value="0"/>
<max value="*"/>
<base>
<path value="DomainResource.modifierExtension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="true"/>
<isModifierReason
value="Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="FeatureDefinition.url">
<path value="FeatureDefinition.url"/>
<short
value="Canonical identifier for this {{title}}, represented as an absolute URI (globally unique)"/>
<definition
value="An absolute URI that is used to identify this {{title}} 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 an authoritative instance of this {{title}} is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the {{title}} is stored on different servers."/>
<comment
value="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](http://hl7.org/fhir/R5/resource.html#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](http://hl7.org/fhir/R5/resource.html#meta) element to indicate where the current master source of the resource can be found."/>
<requirements
value="Allows the {{title}} to be referenced by a single globally unique identifier."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="CanonicalResource.url"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="uri"/>
</type>
<constraint>
<key value="cnl-1"/>
<severity value="warning"/>
<human
value="URL should not contain | or # - these characters make processing canonical references problematic"/>
<expression value="exists() implies matches('^[^|# ]+$')"/>
<source
value="http://hl7.org/fhir/StructureDefinition/CanonicalResource"/>
</constraint>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
<mapping>
<identity value="w5"/>
<map value="FiveWs.identifier"/>
</mapping>
</element>
<element id="FeatureDefinition.identifier">
<path value="FeatureDefinition.identifier"/>
<short value="Additional identifier for the {{title}}"/>
<definition
value="A formal identifier that is used to identify this {{title}} when it is represented in other formats, or referenced in a specification, model, design or an instance."/>
<comment
value="Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, and can then identify this {{title}} outside of FHIR, where it is not possible to use the logical URI."/>
<requirements
value="Allows externally provided and/or usable business identifiers to be easily associated with the {{title}}."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="CanonicalResource.identifier"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Identifier"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
<mapping>
<identity value="w5"/>
<map value="FiveWs.identifier"/>
</mapping>
<mapping>
<identity value="objimpl"/>
<map value="no-gen-base"/>
</mapping>
</element>
<element id="FeatureDefinition.version">
<path value="FeatureDefinition.version"/>
<short value="Business version of the {{title}}"/>
<definition
value="The identifier that is used to identify this version of the {{title}} when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the {{title}} 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 without additional knowledge. (See the versionAlgorithm element.)"/>
<comment
value="There may be different {{title}}s that have the same url 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 {{title}} with the format [url]|[version]. The version SHOULD NOT contain a '#' - see [Business Version](http://hl7.org/fhir/R5/resource.html#bv-format)."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="CanonicalResource.version"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
<mapping>
<identity value="w5"/>
<map value="FiveWs.version"/>
</mapping>
</element>
<element id="FeatureDefinition.versionAlgorithm[x]">
<path value="FeatureDefinition.versionAlgorithm[x]"/>
<short value="How to compare versions"/>
<definition
value="Indicates the mechanism used to compare versions to determine which is more current."/>
<comment
value="If set as a string, this is a FHIRPath expression that has two additional context variables passed in - %version1 and %version2 and will return a negative number if version1 is newer, a positive number if version2 and a 0 if the version ordering can't be successfully be determined."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="CanonicalResource.versionAlgorithm[x]"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<type>
<code value="Coding"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
<binding>
<strength value="extensible"/>
<valueSet value="http://hl7.org/fhir/ValueSet/version-algorithm"/>
</binding>
</element>
<element id="FeatureDefinition.name">
<path value="FeatureDefinition.name"/>
<short value="Name for this {{title}} (computer friendly)"/>
<definition
value="A natural language name identifying the {{title}}. This name should be usable as an identifier for the resource by machine processing applications such as code generation."/>
<comment
value="The name is not expected to be globally unique. The name should be a simple alphanumeric type no-whitespace name to ensure that it is machine-processing friendly."/>
<requirements value="Supports code generation."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="CanonicalResource.name"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<condition value="cnl-0"/>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
</element>
<element id="FeatureDefinition.title">
<path value="FeatureDefinition.title"/>
<short value="Name for this {{title}} (human friendly)"/>
<definition
value="A short, descriptive, user-friendly title for the {{title}}."/>
<comment
value="This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="CanonicalResource.title"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
</element>
<element id="FeatureDefinition.status">
<path value="FeatureDefinition.status"/>
<short value="draft | active | retired | unknown"/>
<definition value="The current state of this {{title}}."/>
<comment
value="A nominal state-transition diagram can be found in the [Definition pattern](http://hl7.org/fhir/R5/definition.html#statemachine) documentation.
Unknown does not represent 'other' - one of the defined statuses must apply. Unknown is used when the authoring system is not sure what the current status is.
See guidance around (not) making local changes to elements [here](http://hl7.org/fhir/R5/canonicalresource.html#localization)."/>
<requirements
value="Enables tracking the life-cycle of the content and filtering of {{title}}s that are appropriate for use versus not."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="CanonicalResource.status"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="true"/>
<isModifierReason
value="This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration"/>
<isSummary value="true"/>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="PublicationStatus"/>
</extension>
<strength value="required"/>
<description value="The lifecycle status of an artifact."/>
<valueSet
value="http://hl7.org/fhir/ValueSet/publication-status|5.0.0"/>
</binding>
<mapping>
<identity value="w5"/>
<map value="FiveWs.status"/>
</mapping>
</element>
<element id="FeatureDefinition.experimental">
<path value="FeatureDefinition.experimental"/>
<short value="For testing purposes, not real usage"/>
<definition
value="A Boolean value to indicate that this {{title}} is authored for testing purposes (or education/evaluation/marketing) and is not intended for genuine usage."/>
<comment
value="Allows filtering of {{title}}s that are appropriate for use versus not."/>
<requirements
value="Enables experimental content to be developed following the same lifecycle that would be used for a production-level {{title}}."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="CanonicalResource.experimental"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="boolean"/>
</type>
<meaningWhenMissing
value="If absent, this resource is treated as though it is not experimental."/>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
<mapping>
<identity value="w5"/>
<map value="FiveWs.class"/>
</mapping>
</element>
<element id="FeatureDefinition.date">
<path value="FeatureDefinition.date"/>
<short value="Date last changed"/>
<definition
value="The date (and optionally time) when the {{title}} was last significantly changed. 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 {{title}} changes."/>
<comment
value="The date is often not tracked until the resource is published, but may be present on draft content. Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the {{title}}. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.
See guidance around (not) making local changes to elements [here](http://hl7.org/fhir/R5/canonicalresource.html#localization)."/>
<alias value="Revision Date"/>
<min value="0"/>
<max value="1"/>
<base>
<path value="CanonicalResource.date"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="dateTime"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
<mapping>
<identity value="w5"/>
<map value="FiveWs.recorded"/>
</mapping>
</element>
<element id="FeatureDefinition.publisher">
<path value="FeatureDefinition.publisher"/>
<short
value="Name of the publisher/steward (organization or individual)"/>
<definition
value="The name of the organization or individual responsible for the release and ongoing maintenance of the {{title}}."/>
<comment
value="Usually an organization but may be an individual. The publisher (or steward) of the {{title}} is the organization or individual primarily responsible for the maintenance and upkeep of the {{title}}. 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 {{title}}. This item SHOULD be populated unless the information is available from context."/>
<requirements
value="Helps establish the "authority/credibility" of the {{title}}. May also allow for contact."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="CanonicalResource.publisher"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
<mapping>
<identity value="w5"/>
<map value="FiveWs.witness"/>
</mapping>
</element>
<element id="FeatureDefinition.contact">
<path value="FeatureDefinition.contact"/>
<short value="Contact details for the publisher"/>
<definition
value="Contact details to assist a user in finding and communicating with the publisher."/>
<comment
value="May be a web site, an email address, a telephone number, etc.
See guidance around (not) making local changes to elements [here](http://hl7.org/fhir/R5/canonicalresource.html#localization)."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="CanonicalResource.contact"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="ContactDetail"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
</element>
<element id="FeatureDefinition.description">
<path value="FeatureDefinition.description"/>
<short value="Natural language description of the {{title}}"/>
<definition
value="A free text natural language description of the {{title}} from a consumer's perspective."/>
<comment
value="This description can be used to capture details 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 {{title}} as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="CanonicalResource.description"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="markdown"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="FeatureDefinition.useContext">
<path value="FeatureDefinition.useContext"/>
<short value="The context that the content is intended to support"/>
<definition
value="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 {{title}}s."/>
<comment
value="When multiple useContexts are specified, there is no expectation that all or even any of the contexts apply."/>
<requirements value="Assist in searching for appropriate content."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="CanonicalResource.useContext"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="UsageContext"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
</element>
<element id="FeatureDefinition.jurisdiction">
<path value="FeatureDefinition.jurisdiction"/>
<short value="Intended jurisdiction for {{title}} (if applicable)"/>
<definition
value="A legal or geographic region in which the {{title}} is intended to be used."/>
<comment
value="It may be possible for the {{title}} to be used in jurisdictions other than those for which it was originally designed or intended.
DEPRECATION NOTE: For consistency, implementations are encouraged to migrate to using the new 'jurisdiction' code in the useContext element. (I.e. useContext.code indicating http://terminology.hl7.org/CodeSystem/usage-context-type#jurisdiction and useContext.valueCodeableConcept indicating the jurisdiction.)"/>
<min value="0"/>
<max value="*"/>
<base>
<path value="CanonicalResource.jurisdiction"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="CodeableConcept"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="true"/>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="Jurisdiction"/>
</extension>
<strength value="extensible"/>
<description
value="Countries and regions within which this artifact is targeted for use."/>
<valueSet value="http://hl7.org/fhir/ValueSet/jurisdiction"/>
</binding>
</element>
<element id="FeatureDefinition.purpose">
<path value="FeatureDefinition.purpose"/>
<short value="Why this {{title}} is defined"/>
<definition
value="Explanation of why this {{title}} is needed and why it has been designed as it has."/>
<comment
value="This element does not describe the usage of the {{title}}. 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 {{title}}."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="CanonicalResource.purpose"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="markdown"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="w5"/>
<map value="FiveWs.why[x]"/>
</mapping>
<mapping>
<identity value="objimpl"/>
<map value="no-gen-base"/>
</mapping>
</element>
<element id="FeatureDefinition.copyright">
<path value="FeatureDefinition.copyright"/>
<short value="Use and/or publishing restrictions"/>
<definition
value="A copyright statement relating to the {{title}} and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the {{title}}."/>
<comment
value="The short copyright declaration (e.g. (c) '2015+ xyz organization' should be sent in the copyrightLabel element."/>
<requirements
value="Consumers must be able to determine any legal restrictions on the use of the {{title}} and/or its content."/>
<alias value="License"/>
<alias value="Restrictions"/>
<min value="0"/>
<max value="1"/>
<base>
<path value="CanonicalResource.copyright"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="markdown"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="objimpl"/>
<map value="no-gen-base"/>
</mapping>
</element>
<element id="FeatureDefinition.copyrightLabel">
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
<valueBoolean value="true"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
<valueBoolean value="true"/>
</extension>
<path value="FeatureDefinition.copyrightLabel"/>
<short value="Copyright holder and year(s)"/>
<definition
value="A short string (<50 characters), suitable for inclusion in a page footer that identifies the copyright holder, effective period, and optionally whether rights are resctricted. (e.g. 'All rights reserved', 'Some rights reserved')."/>
<comment
value="The (c) symbol should NOT be included in this string. It will be added by software when rendering the notation. Full details about licensing, restrictions, warrantees, etc. goes in the more general 'copyright' element."/>
<requirements
value="Defines the content expected to be rendered in all representations of the artifact."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="CanonicalResource.copyrightLabel"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="false"/>
<isModifier value="false"/>
<isSummary value="false"/>
</element>
<element id="FeatureDefinition.valueType">
<path value="FeatureDefinition.valueType"/>
<short value="Type of value associated with the feature"/>
<definition
value="Features are very boolean: true or false for whether the application implements the feature, but the value
associated with the feature might be a number, a string, or some kind of code"/>
<min value="1"/>
<max value="1"/>
<base>
<path value="FeatureDefinition.valueType"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
<binding>
<strength value="required"/>
<valueSet value="http://hl7.org/fhir/ValueSet/data-types"/>
</binding>
</element>
<element id="FeatureDefinition.valueSet">
<path value="FeatureDefinition.valueSet"/>
<short value="ValueSet that controls what coded value are allowed"/>
<definition
value="If a value set is specified, the value of the data type must come from the value set, and the
value type must be one of the bindeable types defined in the FHIR specification"/>
<min value="0"/>
<max value="1"/>
<base>
<path value="FeatureDefinition.valueSet"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="canonical"/>
<targetProfile
value="http://hl7.org/fhir/StructureDefinition/ValueSet"/>
</type>
</element>
<element id="FeatureDefinition.context">
<path value="FeatureDefinition.context"/>
<short value="The FHIR elements on which this feature can be defined"/>
<definition
value="The elements on which this feature can be defined. These URLs take the form or Canonica(StructureDefinition)#{element-id},
where The structure definition is a reference to a FHIR resource - usually CapabilityStatement of TerminologyCapabilities,
and the element-id is a defined element within one of the resources. This is used to state where the feature applies. some
features are defined on applications, but others apply to particular resources, or operations on resources, or particular
code systems etc"/>
<min value="0"/>
<max value="*"/>
<base>
<path value="FeatureDefinition.context"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="url"/>
</type>
</element>
<element id="FeatureDefinition.qualifier">
<path value="FeatureDefinition.qualifier"/>
<short
value="A qualifier that might provided more information about a feature implementation"/>
<definition
value="A qualifier is an extra piece of information that MAY or SHALL be provided when the feature is described/specified
that provides additional information about the feature. E.g. a feature defined on a resource may only be applicable
to particular events associated with the resource, or ...?"/>
<min value="0"/>
<max value="*"/>
<base>
<path value="FeatureDefinition.qualifier"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="BackboneElement"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
</element>
<element id="FeatureDefinition.qualifier.id">
<path value="FeatureDefinition.qualifier.id"/>
<representation value="xmlAttr"/>
<short value="Unique id for inter-element referencing"/>
<definition
value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Element.id"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
<valueUrl value="id"/>
</extension>
<code value="http://hl7.org/fhirpath/System.String"/>
</type>
<condition value="ele-1"/>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="FeatureDefinition.qualifier.extension">
<path value="FeatureDefinition.qualifier.extension"/>
<slicing>
<discriminator>
<type value="value"/>
<path value="url"/>
</discriminator>
<description value="Extensions are always sliced by (at least) url"/>
<rules value="open"/>
</slicing>
<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. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
<comment
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."/>
<alias value="extensions"/>
<alias value="user content"/>
<min value="0"/>
<max value="*"/>
<base>
<path value="Element.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="FeatureDefinition.qualifier.modifierExtension">
<path value="FeatureDefinition.qualifier.modifierExtension"/>
<short value="Extensions that cannot be ignored even if unrecognized"/>
<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 in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
<comment
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."/>
<requirements
value="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](http://hl7.org/fhir/R5/extensibility.html#modifierExtension)."/>
<alias value="extensions"/>
<alias value="user content"/>
<alias value="modifiers"/>
<min value="0"/>
<max value="*"/>
<base>
<path value="BackboneElement.modifierExtension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
</type>
<constraint>
<key value="ele-1"/>
<severity value="error"/>
<human value="All FHIR elements must have a @value or children"/>
<expression
value="hasValue() or (children().count() > id.count())"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ext-1"/>
<severity value="error"/>
<human value="Must have either extensions or value[x], not both"/>
<expression value="extension.exists() != value.exists()"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="true"/>
<isModifierReason
value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="FeatureDefinition.qualifier.name">
<path value="FeatureDefinition.qualifier.name"/>
<short value="The name of the feature"/>
<definition value="The name of the feature"/>
<min value="1"/>
<max value="1"/>
<base>
<path value="FeatureDefinition.qualifier.name"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
</element>
<element id="FeatureDefinition.qualifier.description">
<path value="FeatureDefinition.qualifier.description"/>
<short value="A human-readable description of the qualifier."/>
<definition value="A human-readable description of the qualifier."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="FeatureDefinition.qualifier.description"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
</element>
<element id="FeatureDefinition.qualifier.valueType">
<path value="FeatureDefinition.qualifier.valueType"/>
<short value="Type of value associated with the feature"/>
<definition
value="Features are very boolean: true or false for whether the application implements the feature, but the value
associated with the feature might be a number, a string, or some kind of code"/>
<min value="1"/>
<max value="1"/>
<base>
<path value="FeatureDefinition.qualifier.valueType"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
<binding>
<strength value="required"/>
<valueSet value="http://hl7.org/fhir/ValueSet/data-types"/>
</binding>
</element>
<element id="FeatureDefinition.qualifier.optional">
<path value="FeatureDefinition.qualifier.optional"/>
<short
value="Whether the feature is optional, or must always be present"/>
<definition
value="Whether the feature is optional, or must always be present when a feature is referred to"/>
<min value="1"/>
<max value="1"/>
<base>
<path value="FeatureDefinition.qualifier.optional"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="boolean"/>
</type>
</element>
</snapshot>
<differential>
<element id="FeatureDefinition">
<path value="FeatureDefinition"/>
<short value="Feature Definition"/>
<definition
value="A definition of a feature that applications may implement, or be required to implement. Features are an aspect of a an applications implementation that
generally impacts on the handling of data received from or provided to from the application, which makes it worth declaring. Once declared, "/>
</element>
<element id="FeatureDefinition.valueType">
<path value="FeatureDefinition.valueType"/>
<short value="Type of value associated with the feature"/>
<definition
value="Features are very boolean: true or false for whether the application implements the feature, but the value
associated with the feature might be a number, a string, or some kind of code"/>
<min value="1"/>
<max value="1"/>
<type>
<code value="code"/>
</type>
<binding>
<strength value="required"/>
<valueSet value="http://hl7.org/fhir/ValueSet/data-types"/>
</binding>
</element>
<element id="FeatureDefinition.valueSet">
<path value="FeatureDefinition.valueSet"/>
<short value="ValueSet that controls what coded value are allowed"/>
<definition
value="If a value set is specified, the value of the data type must come from the value set, and the
value type must be one of the bindeable types defined in the FHIR specification"/>
<min value="0"/>
<max value="1"/>
<type>
<code value="canonical"/>
<targetProfile
value="http://hl7.org/fhir/StructureDefinition/ValueSet"/>
</type>
</element>
<element id="FeatureDefinition.context">
<path value="FeatureDefinition.context"/>
<short value="The FHIR elements on which this feature can be defined"/>
<definition
value="The elements on which this feature can be defined. These URLs take the form or Canonica(StructureDefinition)#{element-id},
where The structure definition is a reference to a FHIR resource - usually CapabilityStatement of TerminologyCapabilities,
and the element-id is a defined element within one of the resources. This is used to state where the feature applies. some
features are defined on applications, but others apply to particular resources, or operations on resources, or particular
code systems etc"/>
<min value="0"/>
<max value="*"/>
<type>
<code value="url"/>
</type>
</element>
<element id="FeatureDefinition.qualifier">
<path value="FeatureDefinition.qualifier"/>
<short
value="A qualifier that might provided more information about a feature implementation"/>
<definition
value="A qualifier is an extra piece of information that MAY or SHALL be provided when the feature is described/specified
that provides additional information about the feature. E.g. a feature defined on a resource may only be applicable
to particular events associated with the resource, or ...?"/>
<min value="0"/>
<max value="*"/>
<type>
<code value="BackboneElement"/>
</type>
</element>
<element id="FeatureDefinition.qualifier.name">
<path value="FeatureDefinition.qualifier.name"/>
<short value="The name of the feature"/>
<definition value="The name of the feature"/>
<min value="1"/>
<max value="1"/>
<type>
<code value="code"/>
</type>
</element>
<element id="FeatureDefinition.qualifier.description">
<path value="FeatureDefinition.qualifier.description"/>
<short value="A human-readable description of the qualifier."/>
<definition value="A human-readable description of the qualifier."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="string"/>
</type>
</element>
<element id="FeatureDefinition.qualifier.valueType">
<path value="FeatureDefinition.qualifier.valueType"/>
<short value="Type of value associated with the feature"/>
<definition
value="Features are very boolean: true or false for whether the application implements the feature, but the value
associated with the feature might be a number, a string, or some kind of code"/>
<min value="1"/>
<max value="1"/>
<type>
<code value="code"/>
</type>
<binding>
<strength value="required"/>
<valueSet value="http://hl7.org/fhir/ValueSet/data-types"/>
</binding>
</element>
<element id="FeatureDefinition.qualifier.optional">
<path value="FeatureDefinition.qualifier.optional"/>
<short
value="Whether the feature is optional, or must always be present"/>
<definition
value="Whether the feature is optional, or must always be present when a feature is referred to "/>
<min value="1"/>
<max value="1"/>
<type>
<code value="boolean"/>
</type>
</element>
</differential>
</StructureDefinition>
IG © 2023+ HL7 International / FHIR Infrastructure. Package hl7.fhir.uv.application-feature#1.0.0-ballot based on FHIR 5.0.0. Generated 2024-11-22
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