StructureDefinition
for
Identifier
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padding:0px 4px 0px 4pxAn identifier intended for computation
Elements defined in Ancestors:
unique id for the element within a resource (for internal references). This may be any
string value that does not contain spaces.,
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.
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padding:0px 4px 0px 4pxusual | official | temp | secondary (If known)
(
)
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Identifier.type : A coded type for the identifier that can be used to determine which
identifier to use for a specific purpose.
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padding:0px 4px 0px 4pxDescription of identifier
A coded type for an identifier that can be used to determine which identifier to use for
a specific purpose. (
To be conformant, the concept in this element SHALL be from the specified value set if
any of the codes within the value set can apply to the concept being communicated. If
the value set does not cover the concept (based on human review), alternate codings (or,
data type allowing, text) may be included instead.)
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Identifier.system : Establishes the namespace for the value - that is, a URL that describes
a set values that are unique.
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Identifier.value : The portion of the identifier typically relevant to the user and which
is unique within the context of the system.
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(
)
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<?xml version="1.0" encoding="UTF-8"?>
Documentation for this format
<StructureDefinition xmlns="http://hl7.org/fhir">
<id value="Identifier"/>
<text>
<status value="generated"/>
<div xmlns="http://www.w3.org/1999/xhtml">
<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 class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom:
3px">
<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 class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom:
3px">
<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 class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom:
3px">
<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 class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom:
3px; width: 100px">
<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 class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom:
3px">
<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 alt="doco" src="data:(snipped in html view)" style="background-color: inherit"/> </a> </span> </th> </tr> <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:
white">
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAJUlEQVR4Xu3IIQEAAAg
DsHd9/w4EQIOamFnaBgAA4MMKAACAKwNp30CqZFfFmwAAAABJRU5ErkJggg==)">
<img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/> <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Element"/> <a href="datatypes-definitions.html#Identifier" title="Identifier : An identifier - identifies some entity uniquely and unambiguously.
Typically this is used for business identifiers.">Identifier</a>
</td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:
3px; color: black; null" title="This element is included in summaries">Σ</a>
<a href="versions.html#std-process" style="padding-left: 3px; padding-right: 3px; border: 1px grey solid; font-weight: bold;
color: black; background-color: #e6ffe6; padding-left: 3px; padding-right: 3px;
border: 1px grey solid; font-weight: bold; color: black; background-color: #e6ffe6" title="Standards Status = Normative">N</a>
</td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px"/>
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="types.html#Element">Element</a> </td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">An identifier intended for computation
<br/> <span style="font-style: italic" title="ident-1">+ Warning: Identifier with no value has limited utility. If communicating that
an identifier value has been suppressed or missing, the value element SHOULD be
present with an extension indicating the missing semantic - e.g. data-absent-reason</span>
<br/> <br/> Elements defined in Ancestors: <a href="types.html#Element" title="Unique id for the element within a resource (for internal references). This may
be any string value that does not contain spaces.">id</a> ,
<a href="types.html#Element" title="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.">extension</a>
</td> </tr> <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:
#F7F7F7">
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
<img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/> <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/> <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/> <a href="datatypes-definitions.html#Identifier.use" title="Identifier.use : The purpose of this identifier.">use</a> </td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="conformance-rules.html#isModifier" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:
3px; color: black; null" title="This element is a modifier element">?!</a>
<a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:
3px; color: black; null" title="This element is included in summaries">Σ</a>
</td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td>
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="datatypes.html#code">code</a> </td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">usual | official | temp | secondary | old (If known)
<br/> Binding: <a href="valueset-identifier-use.html" title="Identifies the purpose for this identifier, if known .">IdentifierUse</a> ( <a href="terminologies.html#required" title="To be conformant, the concept in this element SHALL be from the specified value
set.">Required</a> )
<br/> </td> </tr> <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:
white">
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
<img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/> <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/> <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Data Type"/> <a href="datatypes-definitions.html#Identifier.type" title="Identifier.type : A coded type for the identifier that can be used to determine
which identifier to use for a specific purpose.">type</a>
</td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:
3px; color: black; null" title="This element is included in summaries">Σ</a>
</td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td>
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="datatypes.html#CodeableConcept">CodeableConcept</a> </td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Description of identifier
<br/> Binding: <a href="valueset-identifier-type.html" title="A coded type for an identifier that can be used to determine which identifier to
use for a specific purpose.">Identifier Type Codes</a> (
<a href="terminologies.html#extensible" title="To be conformant, the concept in this element SHALL be from the specified value
set if any of the codes within the value set can apply to the concept being communicated.
If the value set does not cover the concept (based on human review), alternate
codings (or, data type allowing, text) may be included instead.">Extensible</a> )
<br/> </td> </tr> <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:
#F7F7F7">
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
<img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/> <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/> <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type"/> <a href="datatypes-definitions.html#Identifier.system" title="Identifier.system : Establishes the namespace for the value - that is, an absolute
URL that describes a set values that are unique.">system</a>
</td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:
3px; color: black; null" title="This element is included in summaries">Σ</a>
</td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td>
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="datatypes.html#uri">uri</a> </td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">The namespace for the identifier value
<br/> </td> </tr> <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:
white">
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
<img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/> <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/> <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Primitive Data Type"/> <a href="datatypes-definitions.html#Identifier.value" title="Identifier.value : The portion of the identifier typically relevant to the user
and which is unique within the context of the system.">value</a>
</td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:
3px; color: black; null" title="This element is included in summaries">Σ</a>
<a href="conformance-rules.html#constraints" style="padding-left: 3px; padding-right: 3px; border: 1px maroon solid; font-weight: bold;
color: #301212; background-color: #fdf4f4;; padding-left: 3px; padding-right: 3px;
border: 1px maroon solid; font-weight: bold; color: #301212; background-color:
#fdf4f4;" title="This element has or is affected by some invariants">C</a>
</td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td>
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="datatypes.html#string">string</a> </td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">The value that is unique
<br/> </td> </tr> <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:
#F7F7F7">
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAALUlEQVR4Xu3IoREAIAw
EwfT6/ddA0GBAxO3NrLlKUj9263wAAAAvrgEAADClAVWFQIBRHMicAAAAAElFTkSuQmCC)">
<img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/> <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/> <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: #F7F7F7; background-color: inherit" title="Data Type"/> <a href="datatypes-definitions.html#Identifier.period" title="Identifier.period : Time period during which identifier is/was valid for use.">period</a> </td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:
3px; color: black; null" title="This element is included in summaries">Σ</a>
</td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td>
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="datatypes.html#Period">Period</a> </td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Time period when id is/was valid for use
<br/> </td> </tr> <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color:
white">
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image:
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCAYAAACg/LjIAAAAJUlEQVR4Xu3IIQEAAAg
DsHd9/w4EQIOamFnaBgAA4MMKAACAKwNp30CqZFfFmwAAAABJRU5ErkJggg==)">
<img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/> <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: inherit"/> <img alt="." class="hierarchy" src="data:(snipped in html view)" style="background-color: white; background-color: inherit" title="Reference to another Resource"/> <a href="datatypes-definitions.html#Identifier.assigner" title="Identifier.assigner : Organization that issued/manages the identifier.">assigner</a> </td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="elementdefinition-definitions.html#ElementDefinition.isSummary" style="padding-left: 3px; padding-right: 3px; color: black; null; padding-left: 3px; padding-right:
3px; color: black; null" title="This element is included in summaries">Σ</a>
</td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">0..1</td>
<td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">
<a href="references.html#Reference">Reference</a> ( <a href="organization.html">Organization</a> ) </td> <td class="hierarchy" style="vertical-align: top; text-align : var(--ig-left,left); background-color: white;
border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px">Organization that issued id (may be just text)
<br/> </td> </tr> <tr> <td class="hierarchy" colspan="5"> <br/> <a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"> <img alt="doco" src="data:(snipped in html view)" style="background-color: inherit"/> Documentation for this format </a> </td> </tr> </table> </div> </text> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="normative"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"> <valueCode value="fhir"/> </extension> <url value="http://hl7.org/fhir/StructureDefinition/Identifier"/> <version value="6.0.0-ballot3"/> <name value="Identifier"/> <status value="active"/> <experimental value="false"/> <date value="2025-12-17T09:50:17+00:00"/> <publisher value="HL7 International / FHIR Infrastructure"/> <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/fiwg"/> </telecom> </contact> <description value="Identifier Type: An identifier - identifies some entity uniquely and unambiguously.
Typically this is used for business identifiers."/>
<jurisdiction> <coding> <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> <code value="001"/> <display value="World"/> </coding> </jurisdiction>
<purpose value="Need to be able to identify things with confidence and be sure that the identification
is not subject to misinterpretation.
II - see see identifier pattern at http://wiki.hl7.org/index.php?title=Common_Design_Patterns#Identi
fier_Pattern for relevant discussion. The Identifier class is a little looser than the
v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=
IDENT]
unique id for the element within a resource (for internal references). This may be any
string value that does not contain spaces.
is not subject to misinterpretation."/>
<fhirVersion value="6.0.0-ballot3"/> <mapping> <identity value="v2"/> <uri value="http://hl7.org/v2"/> <name value="HL7 V2 Mapping"/> </mapping> <mapping> <identity value="rim"/> <uri value="http://hl7.org/v3"/> <name value="RIM Mapping"/> </mapping> <mapping> <identity value="servd"/> <uri value="http://www.omg.org/spec/ServD/1.0/"/> <name value="ServD"/> </mapping> <kind value="complex-type"/> <abstract value="false"/> <type value="Identifier"/> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/DataType"/> <derivation value="specialization"/> <snapshot> <element id="Identifier"> <path value="Identifier"/> <short value="An identifier intended for computation"/> <definition value="An identifier - identifies some entity uniquely and unambiguously. Typically this
is used for business identifiers."/>
<comment value="The rules of the identifier.type determine if a check digit is part of the ID
value or sent separately, such as through the checkDigit extension."/>
<min value="0"/> <max value="*"/> <base> <path value="Identifier"/> <min value="0"/> <max value="*"/> </base> <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="ident-1"/> <severity value="warning"/> <human value="Identifier with no value has limited utility. If communicating that an identifier
value has been suppressed or missing, the value element SHOULD be present with
an extension indicating the missing semantic - e.g. data-absent-reason"/>
<expression value="value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Identifier"/> </constraint> <isModifier value="false"/> <mapping> <identity value="rim"/> <map value="n/a,II - The Identifier class is a little looser than the v3 type II because it
allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]"/>
</mapping> <mapping> <identity value="v2"/> <map value="CX / EI (occasionally, more often EI maps to a resource id or a URL)"/> </mapping> <mapping> <identity value="servd"/> <map value="Identifier"/> </mapping> </element> <element id="Identifier.id"> <path value="Identifier.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="string"/> </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="Identifier.extension"> <path value="Identifier.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. 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.
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.
This is labeled as "Is Modifier" because applications should not mistake a temporary
id for a permanent one. Applications can assume that an identifier is permanent unless
it explicitly says that it is temporary.
Allows the appropriate identifier for a particular context of use to be selected from
among a set of identifiers.
A coded type for the identifier that can be used to determine which identifier to use
for a specific purpose.
This element deals only with general categories of identifiers. It SHOULD not be used
for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into
multiple categories due to common usage.
Where the system is known, a type is unnecessary because the type is always part of the
system definition. However systems often need to handle identifiers where the system is
not known. There is not a 1:1 relationship between type and system, since many different
systems have the same type.
A coded type for an identifier that can be used to determine which identifier to use for
a specific purpose.
Establishes the namespace for the value - that is, a URL that describes a set values that
are unique.
There are many sets of identifiers. To perform matching of two identifiers, we need
to know what set we're dealing with. The system identifies a particular set of unique
identifiers.
http://www.acme.com/identifiers/patient or urn:ietf:rfc:3986 if the Identifier.value itself
is a full uri
The portion of the identifier typically relevant to the user and which is unique within
the context of the system.
If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary
purpose is computational mapping. As a result, it may be normalized for comparison purposes
(e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human
display can be conveyed using the [Rendered Value extension](extension-rendered-value.html).
The Identifier.assigner may omit the .reference element and only contain a .display element
reflecting the name or other textual information about the assigning organization.
II.assigningAuthorityName but note that this is an improper use by the definition of the
field. Also Role.scoper
II - see see identifier pattern at http://wiki.hl7.org/index.php?title=Common_Design_Patterns#Identi
fier_Pattern for relevant discussion. The Identifier class is a little looser than the
v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=
IDENT]
This is labeled as "Is Modifier" because applications should not mistake a temporary
id for a permanent one. Applications can assume that an identifier is permanent unless
it explicitly says that it is temporary.
Allows the appropriate identifier for a particular context of use to be selected from
among a set of identifiers.
A coded type for the identifier that can be used to determine which identifier to use
for a specific purpose.
This element deals only with general categories of identifiers. It SHOULD not be used
for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into
multiple categories due to common usage.
Where the system is known, a type is unnecessary because the type is always part of the
system definition. However systems often need to handle identifiers where the system is
not known. There is not a 1:1 relationship between type and system, since many different
systems have the same type.
A coded type for an identifier that can be used to determine which identifier to use for
a specific purpose.
Establishes the namespace for the value - that is, a URL that describes a set values that
are unique.
There are many sets of identifiers. To perform matching of two identifiers, we need
to know what set we're dealing with. The system identifies a particular set of unique
identifiers.
http://www.acme.com/identifiers/patient or urn:ietf:rfc:3986 if the Identifier.value itself
is a full uri
The portion of the identifier typically relevant to the user and which is unique within
the context of the system.
If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary
purpose is computational mapping. As a result, it may be normalized for comparison purposes
(e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human
display can be conveyed using the [Rendered Value extension](extension-rendered-value.html).
The Identifier.assigner may omit the .reference element and only contain a .display element
reflecting the name or other textual information about the assigning organization.
II.assigningAuthorityName but note that this is an improper use by the definition of the
field. Also Role.scoper
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> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="Identifier.use"> <path value="Identifier.use"/> <short value="usual | official | temp | secondary | old (If known)"/> <definition value="The purpose of this identifier."/> <comment value="Applications can assume that an identifier is permanent unless it explicitly says
that it is temporary."/>
<requirements value="Allows the appropriate identifier for a particular context of use to be selected
from among a set of identifiers."/>
<min value="0"/> <max value="1"/> <base> <path value="Identifier.use"/> <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> <isModifier value="true"/> <isModifierReason value="This is labeled as "Is Modifier" because applications should not mistake
a temporary id for a permanent one."/>
<isSummary value="true"/> <binding> <extension url="http://hl7.org/fhir/tools/StructureDefinition/binding-definition"> <valueMarkdown value="Identifies the purpose for this identifier, if known ."/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="IdentifierUse"/> </extension> <strength value="required"/> <description value="Identifies the purpose for this identifier, if known ."/> <valueSet value="http://hl7.org/fhir/ValueSet/identifier-use|6.0.0-ballot3"/> </binding> <mapping> <identity value="v2"/> <map value="N/A"/> </mapping> <mapping> <identity value="rim"/> <map value="Role.code or implied by context"/> </mapping> </element> <element id="Identifier.type"> <path value="Identifier.type"/> <short value="Description of identifier"/> <definition value="A coded type for the identifier that can be used to determine which identifier
to use for a specific purpose."/>
<comment value="This element deals only with general categories of identifiers. It SHOULD not
be used for codes that correspond 1..1 with the Identifier.system. Some identifiers
may fall into multiple categories due to common usage. Where the system is known,
a type is unnecessary because the type is always part of the system definition.
However systems often need to handle identifiers where the system is not known.
There is not a 1:1 relationship between type and system, since many different systems
have the same type."/>
<requirements value="Allows users to make use of identifiers when the identifier system is not known."/> <min value="0"/> <max value="1"/> <base> <path value="Identifier.type"/> <min value="0"/> <max value="1"/> </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> <isModifier value="false"/> <isSummary value="true"/> <binding> <extension url="http://hl7.org/fhir/tools/StructureDefinition/binding-definition"> <valueMarkdown value="A coded type for an identifier that can be used to determine which identifier to
use for a specific purpose."/>
</extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="IdentifierType"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding"> <valueBoolean value="true"/> </extension> <strength value="extensible"/> <description value="A coded type for an identifier that can be used to determine which identifier to
use for a specific purpose."/>
<valueSet value="http://hl7.org/fhir/ValueSet/identifier-type"/> </binding> <mapping> <identity value="v2"/> <map value="CX.5"/> </mapping> <mapping> <identity value="rim"/> <map value="Role.code or implied by context"/> </mapping> </element> <element id="Identifier.system"> <path value="Identifier.system"/> <short value="The namespace for the identifier value"/> <definition value="Establishes the namespace for the value - that is, an absolute URL that describes
a set values that are unique."/>
<comment value="Identifier.system is always case sensitive. The FHIR specification, terminology.hl7.org
and HL7 affiliates (for identifiers specific to their jurisdiction) define identifier
systems that SHALL be used for certain types of identifiers. Specific rules can
be found [here](identifier-registry.html)."/>
<requirements value="There are many sets of identifiers. To perform matching of two identifiers, we
need to know what set we're dealing with. The system identifies a particular set
of unique identifiers."/>
<min value="0"/> <max value="1"/> <base> <path value="Identifier.system"/> <min value="0"/> <max value="1"/> </base> <type> <code value="uri"/> </type> <example> <label value="General"/> <valueUri value="http://www.acme.com/identifiers/patient"/> </example> <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> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="v2"/> <map value="CX.4 / EI-2-4"/> </mapping> <mapping> <identity value="rim"/> <map value="II.root or Role.id.root"/> </mapping> <mapping> <identity value="servd"/> <map value="./IdentifierType"/> </mapping> </element> <element id="Identifier.value"> <path value="Identifier.value"/> <short value="The value that is unique"/> <definition value="The portion of the identifier typically relevant to the user and which is unique
within the context of the system."/>
<comment value="If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's
primary purpose is computational mapping. As a result, it may be normalized for
comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A
value formatted for human display can be conveyed using the [http://hl7.org/fhir/StructureDef
inition/rendered-value](https://build.fhir.org/ig/HL7/fhir-extensions/StructureDefinition-rend
ered-value.html)). Identifier.value is to be treated as case sensitive unless knowledge
of the Identifier.system allows the processer to be confident that non-case-sensitive
processing is safe."/>
<min value="0"/> <max value="1"/> <base> <path value="Identifier.value"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <example> <label value="General"/> <valueString value="123456"/> </example> <condition value="ident-1"/> <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> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="v2"/> <map value="CX.1 / EI.1"/> </mapping> <mapping> <identity value="rim"/> <map value="II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or
root)"/>
</mapping> <mapping> <identity value="servd"/> <map value="./Value"/> </mapping> </element> <element id="Identifier.period"> <path value="Identifier.period"/> <short value="Time period when id is/was valid for use"/> <definition value="Time period during which identifier is/was valid for use."/> <min value="0"/> <max value="1"/> <base> <path value="Identifier.period"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Period"/> </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> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="v2"/> <map value="CX.7 + CX.8"/> </mapping> <mapping> <identity value="rim"/> <map value="Role.effectiveTime or implied by context"/> </mapping> <mapping> <identity value="servd"/> <map value="./StartDate and ./EndDate"/> </mapping> </element> <element id="Identifier.assigner"> <path value="Identifier.assigner"/> <short value="Organization that issued id (may be just text)"/> <definition value="Organization that issued/manages the identifier."/> <comment value="The Identifier.assigner may omit the .reference element and only contain a .display
element reflecting the name or other textual information about the assigning organization."/>
<min value="0"/> <max value="1"/> <base> <path value="Identifier.assigner"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Reference"/> <targetProfile value="http://hl7.org/fhir/StructureDefinition/Organization"/> </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> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="v2"/> <map value="CX.4 / (CX.4,CX.9,CX.10)"/> </mapping> <mapping> <identity value="rim"/> <map value="II.assigningAuthorityName but note that this is an improper use by the definition
of the field. Also Role.scoper"/>
</mapping> <mapping> <identity value="servd"/> <map value="./IdentifierIssuingAuthority"/> </mapping> </element> </snapshot> <differential> <element id="Identifier"> <path value="Identifier"/> <short value="An identifier intended for computation"/> <definition value="An identifier - identifies some entity uniquely and unambiguously. Typically this
is used for business identifiers."/>
<comment value="The rules of the identifier.type determine if a check digit is part of the ID
value or sent separately, such as through the checkDigit extension."/>
<min value="0"/> <max value="*"/> <constraint> <key value="ident-1"/> <severity value="warning"/> <human value="Identifier with no value has limited utility. If communicating that an identifier
value has been suppressed or missing, the value element SHOULD be present with
an extension indicating the missing semantic - e.g. data-absent-reason"/>
<expression value="value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Identifier"/> </constraint> <mapping> <identity value="v2"/> <map value="CX / EI (occasionally, more often EI maps to a resource id or a URL)"/> </mapping> <mapping> <identity value="rim"/> <map value="II - The Identifier class is a little looser than the v3 type II because it allows
URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]"/>
</mapping> <mapping> <identity value="servd"/> <map value="Identifier"/> </mapping> </element> <element id="Identifier.use"> <path value="Identifier.use"/> <short value="usual | official | temp | secondary | old (If known)"/> <definition value="The purpose of this identifier."/> <comment value="Applications can assume that an identifier is permanent unless it explicitly says
that it is temporary."/>
<requirements value="Allows the appropriate identifier for a particular context of use to be selected
from among a set of identifiers."/>
<min value="0"/> <max value="1"/> <type> <code value="code"/> </type> <isModifier value="true"/> <isModifierReason value="This is labeled as "Is Modifier" because applications should not mistake
a temporary id for a permanent one."/>
<isSummary value="true"/> <binding> <extension url="http://hl7.org/fhir/tools/StructureDefinition/binding-definition"> <valueMarkdown value="Identifies the purpose for this identifier, if known ."/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="IdentifierUse"/> </extension> <strength value="required"/> <description value="Identifies the purpose for this identifier, if known ."/> <valueSet value="http://hl7.org/fhir/ValueSet/identifier-use|6.0.0-ballot3"/> </binding> <mapping> <identity value="v2"/> <map value="N/A"/> </mapping> <mapping> <identity value="rim"/> <map value="Role.code or implied by context"/> </mapping> </element> <element id="Identifier.type"> <path value="Identifier.type"/> <short value="Description of identifier"/> <definition value="A coded type for the identifier that can be used to determine which identifier
to use for a specific purpose."/>
<comment value="This element deals only with general categories of identifiers. It SHOULD not
be used for codes that correspond 1..1 with the Identifier.system. Some identifiers
may fall into multiple categories due to common usage. Where the system is known,
a type is unnecessary because the type is always part of the system definition.
However systems often need to handle identifiers where the system is not known.
There is not a 1:1 relationship between type and system, since many different systems
have the same type."/>
<requirements value="Allows users to make use of identifiers when the identifier system is not known."/> <min value="0"/> <max value="1"/> <type> <code value="CodeableConcept"/> </type> <isSummary value="true"/> <binding> <extension url="http://hl7.org/fhir/tools/StructureDefinition/binding-definition"> <valueMarkdown value="A coded type for an identifier that can be used to determine which identifier to
use for a specific purpose."/>
</extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="IdentifierType"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding"> <valueBoolean value="true"/> </extension> <strength value="extensible"/> <description value="A coded type for an identifier that can be used to determine which identifier to
use for a specific purpose."/>
<valueSet value="http://hl7.org/fhir/ValueSet/identifier-type"/> </binding> <mapping> <identity value="v2"/> <map value="CX.5"/> </mapping> <mapping> <identity value="rim"/> <map value="Role.code or implied by context"/> </mapping> </element> <element id="Identifier.system"> <path value="Identifier.system"/> <short value="The namespace for the identifier value"/> <definition value="Establishes the namespace for the value - that is, an absolute URL that describes
a set values that are unique."/>
<comment value="Identifier.system is always case sensitive. The FHIR specification, terminology.hl7.org
and HL7 affiliates (for identifiers specific to their jurisdiction) define identifier
systems that SHALL be used for certain types of identifiers. Specific rules can
be found [here](identifier-registry.html)."/>
<requirements value="There are many sets of identifiers. To perform matching of two identifiers, we
need to know what set we're dealing with. The system identifies a particular set
of unique identifiers."/>
<min value="0"/> <max value="1"/> <type> <code value="uri"/> </type> <example> <label value="General"/> <valueUri value="http://www.acme.com/identifiers/patient"/> </example> <isSummary value="true"/> <mapping> <identity value="v2"/> <map value="CX.4 / EI-2-4"/> </mapping> <mapping> <identity value="rim"/> <map value="II.root or Role.id.root"/> </mapping> <mapping> <identity value="servd"/> <map value="./IdentifierType"/> </mapping> </element> <element id="Identifier.value"> <path value="Identifier.value"/> <short value="The value that is unique"/> <definition value="The portion of the identifier typically relevant to the user and which is unique
within the context of the system."/>
<comment value="If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's
primary purpose is computational mapping. As a result, it may be normalized for
comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A
value formatted for human display can be conveyed using the [http://hl7.org/fhir/StructureDef
inition/rendered-value](https://build.fhir.org/ig/HL7/fhir-extensions/StructureDefinition-rend
ered-value.html)). Identifier.value is to be treated as case sensitive unless knowledge
of the Identifier.system allows the processer to be confident that non-case-sensitive
processing is safe."/>
<min value="0"/> <max value="1"/> <type> <code value="string"/> </type> <example> <label value="General"/> <valueString value="123456"/> </example> <condition value="ident-1"/> <isSummary value="true"/> <mapping> <identity value="v2"/> <map value="CX.1 / EI.1"/> </mapping> <mapping> <identity value="rim"/> <map value="II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or
root)"/>
</mapping> <mapping> <identity value="servd"/> <map value="./Value"/> </mapping> </element> <element id="Identifier.period"> <path value="Identifier.period"/> <short value="Time period when id is/was valid for use"/> <definition value="Time period during which identifier is/was valid for use."/> <min value="0"/> <max value="1"/> <type> <code value="Period"/> </type> <isSummary value="true"/> <mapping> <identity value="v2"/> <map value="CX.7 + CX.8"/> </mapping> <mapping> <identity value="rim"/> <map value="Role.effectiveTime or implied by context"/> </mapping> <mapping> <identity value="servd"/> <map value="./StartDate and ./EndDate"/> </mapping> </element> <element id="Identifier.assigner"> <path value="Identifier.assigner"/> <short value="Organization that issued id (may be just text)"/> <definition value="Organization that issued/manages the identifier."/> <comment value="The Identifier.assigner may omit the .reference element and only contain a .display
element reflecting the name or other textual information about the assigning organization."/>
<min value="0"/> <max value="1"/> <type> <code value="Reference"/> <targetProfile value="http://hl7.org/fhir/StructureDefinition/Organization"/> </type> <isSummary value="true"/> <mapping> <identity value="v2"/> <map value="CX.4 / (CX.4,CX.9,CX.10)"/> </mapping> <mapping> <identity value="rim"/> <map value="II.assigningAuthorityName but note that this is an improper use by the definition
of the field. Also Role.scoper"/>
</mapping> <mapping> <identity value="servd"/> <map value="./IdentifierIssuingAuthority"/> </mapping> </element> </differential>
</
StructureDefinition
>
Usage
note:
every
effort
has
been
made
to
ensure
that
the
examples
are
correct
and
useful,
but
they
are
not
a
normative
part
of
the
specification.
|
Propose
a
change
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