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          <p><span style="font-size:12pt;font-weight:bold">Bộ Hướng dẫn Triển khai Core FHIR cho Việt Nam</span>
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            <span style="display:inline-block;">0.6.1 - Draft for Community Review



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<h2 id="root">Phần mở rộng: Tuổi thai — Gestational Age Extension - 

Hồ sơ TTL

</h2>

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          Draft
          

            tại thời điểm 
2026-07-10

          
        
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<p>Biểu diễn TTL của vn-ext-gestational-age phần mở rộng.</p>

<p><a href="StructureDefinition-vn-ext-gestational-age.ttl" no-download="true">Raw ttl</a> | <a href="StructureDefinition-vn-ext-gestational-age.ttl" download>Download</a></p>

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  <pre class="rdf" data-fhir="generated" style="white-space: pre; overflow: hidden">
@prefix fhir: &lt;http://hl7.org/fhir/&gt; .
@prefix owl: &lt;http://www.w3.org/2002/07/owl#&gt; .
@prefix rdfs: &lt;http://www.w3.org/2000/01/rdf-schema#&gt; .
@prefix xsd: &lt;http://www.w3.org/2001/XMLSchema#&gt; .

# - resource -------------------------------------------------------------------

&lt;http://hl7.org/fhir/StructureDefinition/vn-ext-gestational-age&gt; a fhir:StructureDefinition ;
  <a href="http://hl7.org/fhir/R4/rdf.html#tree-root">fhir:nodeRole</a> fhir:treeRoot ;
  <a href="http://hl7.org/fhir/R4/resource.html#StructureDefinition.id">fhir:Resource.id</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;vn-ext-gestational-age&quot;] ;
  <a href="http://hl7.org/fhir/R4/resource.html#StructureDefinition.language">fhir:Resource.language</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;vi&quot;] ;
  <a href="http://hl7.org/fhir/R4/domainresource.html#StructureDefinition.text">fhir:DomainResource.text</a> [
     <a href="http://hl7.org/fhir/R4/datatypes.html#Narrative#Narrative.status">fhir:Narrative.status</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;extensions&quot; ] ;
     fhir:Narrative.div &quot;&lt;div xmlns=\&quot;http://www.w3.org/1999/xhtml\&quot;&gt;&lt;p class=\&quot;res-header-id\&quot;&gt;&lt;b&gt;Generated Narrative: StructureDefinition vn-ext-gestational-age&lt;/b&gt;&lt;/p&gt;&lt;a name=\&quot;vn-ext-gestational-age\&quot;&gt; &lt;/a&gt;&lt;a name=\&quot;hcvn-ext-gestational-age\&quot;&gt; &lt;/a&gt;&lt;table border=\&quot;0\&quot; cellpadding=\&quot;0\&quot; cellspacing=\&quot;0\&quot; style=\&quot;border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;\&quot;&gt;&lt;tr style=\&quot;border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top\&quot;&gt;&lt;th style=\&quot;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\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;a href=\&quot;https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\&quot; title=\&quot;The logical name of the element\&quot;&gt;Name&lt;/a&gt;&lt;/th&gt;&lt;th style=\&quot;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\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;a href=\&quot;https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\&quot; title=\&quot;Information about the use of the element\&quot;&gt;Flags&lt;/a&gt;&lt;/th&gt;&lt;th style=\&quot;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\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;a href=\&quot;https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\&quot; title=\&quot;Minimum and Maximum # of times the element can appear in the instance\&quot;&gt;Card.&lt;/a&gt;&lt;/th&gt;&lt;th style=\&quot;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\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;a href=\&quot;https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\&quot; title=\&quot;Reference to the type of the element\&quot;&gt;Type&lt;/a&gt;&lt;/th&gt;&lt;th style=\&quot;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\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;a href=\&quot;https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\&quot; title=\&quot;Additional information about the element\&quot;&gt;Description &amp;amp; Constraints&lt;/a&gt;&lt;span style=\&quot;float: right\&quot;&gt;&lt;a href=\&quot;https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\&quot; title=\&quot;Legend for this format\&quot;&gt;&lt;img src=\&quot;data:image/png;base64,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\&quot; alt=\&quot;doco\&quot; style=\&quot;background-color: inherit\&quot;/&gt;&lt;/a&gt;&lt;/span&gt;&lt;/th&gt;&lt;/tr&gt;&lt;tr style=\&quot;border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\&quot;&gt;&lt;td style=\&quot;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(tbl_bck1.png)\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;img src=\&quot;tbl_spacer.png\&quot; alt=\&quot;.\&quot; style=\&quot;background-color: inherit\&quot; class=\&quot;hierarchy\&quot;/&gt;&lt;img src=\&quot;icon_element.gif\&quot; alt=\&quot;.\&quot; style=\&quot;background-color: white; background-color: inherit\&quot; title=\&quot;Element\&quot; class=\&quot;hierarchy\&quot;/&gt; &lt;a href=\&quot;StructureDefinition-vn-ext-gestational-age-definitions.html#Extension\&quot; title=\&quot;Tuần tuổi thai thực tế tại thời điểm thực hiện thủ thuật/ghi nhận trên giấy tờ KCB, tính bằng số nguyên tuần (1–42 tuần).#xA;Mapping QĐ 3176/QĐ-BYT: TUOI_THAI (Bảng 7 STT 10 — Giấy ra viện; Bảng 11 STT 12 — Giấy chứng nhận nghỉ việc hưởng BHXH).#xA;Trường TUOI_THAI bắt buộc theo điều kiện khi MA_DINH_CHI_THAI='1' (đình chỉ thai nghén). Quan hệ điều kiện này được ràng buộc ở tầng logical model qua invariant `bhyt-xml7-abortion-fields-required` (Bảng 7) và `bhyt-xml11-abortion-fields-required` (Bảng 11); extension chỉ mang giá trị số tuần, không tự enforce điều kiện bắt buộc.#xA;Actual gestational age in whole weeks (1–42) at the time of the procedure or when recorded on the KCB document; FHIR R4 base has no gestational-age element on Procedure/DocumentReference.#xA;Căn cứ: QĐ 3176/QĐ-BYT (29/10/2024).\&quot;&gt;Extension&lt;/a&gt;&lt;a name=\&quot;Extension\&quot;&gt; &lt;/a&gt;&lt;/td&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;/&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;span style=\&quot;opacity: 0.5\&quot;&gt;0&lt;/span&gt;&lt;span style=\&quot;opacity: 0.5\&quot;&gt;..&lt;/span&gt;&lt;span style=\&quot;opacity: 0.5\&quot;&gt;*&lt;/span&gt;&lt;/td&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;a href=\&quot;http://hl7.org/fhir/R4/extensibility.html#Extension\&quot;&gt;Extension&lt;/a&gt;&lt;/td&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;&gt;Tuổi thai — Gestational Age Extension&lt;/td&gt;&lt;/tr&gt;#xD;\n&lt;tr style=\&quot;border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\&quot;&gt;&lt;td style=\&quot;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(tbl_bck10.png)\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;img src=\&quot;tbl_spacer.png\&quot; alt=\&quot;.\&quot; style=\&quot;background-color: inherit\&quot; class=\&quot;hierarchy\&quot;/&gt;&lt;img src=\&quot;tbl_vjoin.png\&quot; alt=\&quot;.\&quot; style=\&quot;background-color: inherit\&quot; class=\&quot;hierarchy\&quot;/&gt;&lt;img src=\&quot;icon_extension_simple.png\&quot; alt=\&quot;.\&quot; style=\&quot;background-color: #F7F7F7; background-color: inherit\&quot; title=\&quot;Simple Extension\&quot; class=\&quot;hierarchy\&quot;/&gt; &lt;a style=\&quot;text-decoration:line-through; text-decoration:line-through\&quot; href=\&quot;StructureDefinition-vn-ext-gestational-age-definitions.html#Extension.extension\&quot;&gt;extension&lt;/a&gt;&lt;a name=\&quot;Extension.extension\&quot;&gt; &lt;/a&gt;&lt;/td&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;/&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;span style=\&quot;text-decoration:line-through\&quot;/&gt;&lt;span style=\&quot;text-decoration:line-through\&quot;&gt;0&lt;/span&gt;&lt;span style=\&quot;text-decoration:line-through\&quot;&gt;..&lt;/span&gt;&lt;span style=\&quot;text-decoration:line-through\&quot;&gt;0&lt;/span&gt;&lt;/td&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;/&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;span style=\&quot;font-style: italic\&quot;&gt;Extension&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;#xD;\n&lt;tr style=\&quot;border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\&quot;&gt;&lt;td style=\&quot;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(tbl_bck10.png)\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;img src=\&quot;tbl_spacer.png\&quot; alt=\&quot;.\&quot; style=\&quot;background-color: inherit\&quot; class=\&quot;hierarchy\&quot;/&gt;&lt;img src=\&quot;tbl_vjoin.png\&quot; alt=\&quot;.\&quot; style=\&quot;background-color: inherit\&quot; class=\&quot;hierarchy\&quot;/&gt;&lt;img src=\&quot;icon_element.gif\&quot; alt=\&quot;.\&quot; style=\&quot;background-color: white; background-color: inherit\&quot; title=\&quot;Element\&quot; class=\&quot;hierarchy\&quot;/&gt; &lt;a href=\&quot;StructureDefinition-vn-ext-gestational-age-definitions.html#Extension.url\&quot;&gt;url&lt;/a&gt;&lt;a name=\&quot;Extension.url\&quot;&gt; &lt;/a&gt;&lt;/td&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;/&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;span style=\&quot;opacity: 0.5\&quot;&gt;1&lt;/span&gt;&lt;span style=\&quot;opacity: 0.5\&quot;&gt;..&lt;/span&gt;&lt;span style=\&quot;opacity: 0.5\&quot;&gt;1&lt;/span&gt;&lt;/td&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;a style=\&quot;opacity: 0.5; opacity: 0.5\&quot; href=\&quot;http://hl7.org/fhir/R4/datatypes.html#uri\&quot;&gt;uri&lt;/a&gt;&lt;/td&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;span style=\&quot;color: darkgreen\&quot;&gt;\&quot;http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-gestational-age\&quot;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;#xD;\n&lt;tr style=\&quot;border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\&quot;&gt;&lt;td style=\&quot;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(tbl_bck00.png)\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;img src=\&quot;tbl_spacer.png\&quot; alt=\&quot;.\&quot; style=\&quot;background-color: inherit\&quot; class=\&quot;hierarchy\&quot;/&gt;&lt;img src=\&quot;tbl_vjoin_end.png\&quot; alt=\&quot;.\&quot; style=\&quot;background-color: inherit\&quot; class=\&quot;hierarchy\&quot;/&gt;&lt;img src=\&quot;icon_primitive.png\&quot; alt=\&quot;.\&quot; style=\&quot;background-color: #F7F7F7; background-color: inherit\&quot; title=\&quot;Primitive Data Type\&quot; class=\&quot;hierarchy\&quot;/&gt; &lt;a href=\&quot;StructureDefinition-vn-ext-gestational-age-definitions.html#Extension.value[x]\&quot; title=\&quot;Số tuần tuổi thai thực tế (1–42 tuần) theo trường TUOI_THAI của QĐ 3176/QĐ-BYT (Bảng 7 STT 10, Bảng 11 STT 12). Bắt buộc theo điều kiện khi MA_DINH_CHI_THAI='1' — điều kiện được enforce bằng invariant `bhyt-xml7-abortion-fields-required` / `bhyt-xml11-abortion-fields-required` ở logical model, không phải bởi extension này.\&quot;&gt;value[x]&lt;/a&gt;&lt;a name=\&quot;Extension.value_x_\&quot;&gt; &lt;/a&gt;&lt;/td&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;a style=\&quot;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;\&quot; href=\&quot;http://hl7.org/fhir/R4/conformance-rules.html#constraints\&quot; title=\&quot;This element has or is affected by constraints ( vn-gestational-age-range )\&quot;&gt;C&lt;/a&gt;&lt;/td&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;&gt;1..&lt;span style=\&quot;opacity: 0.5\&quot;&gt;1&lt;/span&gt;&lt;/td&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;a href=\&quot;http://hl7.org/fhir/R4/datatypes.html#integer\&quot;&gt;integer&lt;/a&gt;&lt;/td&gt;&lt;td style=\&quot;vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\&quot; class=\&quot;hierarchy\&quot;&gt;Tuổi thai (tuần), 1–42 — TUOI_THAI&lt;br class=\&quot;constraint\&quot;/&gt;&lt;span title=\&quot;null\&quot; class=\&quot;constraint\&quot;&gt;Constraints: &lt;/span&gt;&lt;span style=\&quot;font-weight:bold\&quot; title=\&quot;Tuổi thai phải nằm trong khoảng 1–42 tuần theo QĐ 3176/QĐ-BYT (trường TUOI_THAI). Gestational age must be within 1–42 weeks.\&quot; class=\&quot;constraint\&quot;&gt;vn-gestational-age-range&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;#xD;\n&lt;tr&gt;&lt;td colspan=\&quot;5\&quot; class=\&quot;hierarchy\&quot;&gt;&lt;br/&gt;&lt;a href=\&quot;https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\&quot; title=\&quot;Legend for this format\&quot;&gt;&lt;img src=\&quot;data:image/png;base64,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\&quot; alt=\&quot;doco\&quot; style=\&quot;background-color: inherit\&quot;/&gt; Documentation for this format&lt;/a&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&quot;
  ] ;
  <a href="http://hl7.org/fhir/R4/domainresource.html#StructureDefinition.extension">fhir:DomainResource.extension</a> [
     <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
     <a href="http://hl7.org/fhir/R4/extensibility.html#Extension#Extension.url">fhir:Extension.url</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-legal-basis&quot; ] ;
     <a href="http://hl7.org/fhir/R4/extensibility.html#Extension#Extension.value_x_">fhir:Extension.valueCoding</a> [
       <a href="http://hl7.org/fhir/R4/datatypes.html#Coding#Coding.system">fhir:Coding.system</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;http://fhir.hl7.org.vn/core/CodeSystem/vn-legal-document-ref-cs&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#Coding#Coding.code">fhir:Coding.code</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;QD-3176-2024&quot; ]
     ]
  ] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.url">fhir:StructureDefinition.url</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-gestational-age&quot;] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.version">fhir:StructureDefinition.version</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;0.6.1&quot;] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.name">fhir:StructureDefinition.name</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;VNCoreExtGestationalAge&quot;] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.title">fhir:StructureDefinition.title</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Tuổi thai — Gestational Age Extension&quot;] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.status">fhir:StructureDefinition.status</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;draft&quot;] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.date">fhir:StructureDefinition.date</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#dateTime">fhir:value</a> &quot;2026-07-10&quot;^^xsd:date] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.publisher">fhir:StructureDefinition.publisher</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Omi HealthTech / VN Core FHIR Community Initiative&quot;] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.contact">fhir:StructureDefinition.contact</a> [
     <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
     <a href="http://hl7.org/fhir/R4/metadatatypes.html#ContactDetail#ContactDetail.name">fhir:ContactDetail.name</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Omi HealthTech / VN Core FHIR Community Initiative&quot; ] ;
     <a href="http://hl7.org/fhir/R4/metadatatypes.html#ContactDetail#ContactDetail.telecom">fhir:ContactDetail.telecom</a> [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ContactPoint#ContactPoint.system">fhir:ContactPoint.system</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;url&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ContactPoint#ContactPoint.value">fhir:ContactPoint.value</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;https://hl7.org.vn&quot; ]
     ], [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ContactPoint#ContactPoint.system">fhir:ContactPoint.system</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;email&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ContactPoint#ContactPoint.value">fhir:ContactPoint.value</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;info@hl7.org.vn&quot; ]
     ]
  ], [
     <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
     <a href="http://hl7.org/fhir/R4/metadatatypes.html#ContactDetail#ContactDetail.name">fhir:ContactDetail.name</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Omi HealthTech (OmiGroup)&quot; ] ;
     <a href="http://hl7.org/fhir/R4/metadatatypes.html#ContactDetail#ContactDetail.telecom">fhir:ContactDetail.telecom</a> [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ContactPoint#ContactPoint.system">fhir:ContactPoint.system</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;url&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ContactPoint#ContactPoint.value">fhir:ContactPoint.value</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;https://omihealthtech.vn&quot; ]
     ], [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ContactPoint#ContactPoint.system">fhir:ContactPoint.system</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;url&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ContactPoint#ContactPoint.value">fhir:ContactPoint.value</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;https://omigroup.vn&quot; ]
     ], [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ContactPoint#ContactPoint.system">fhir:ContactPoint.system</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;email&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ContactPoint#ContactPoint.value">fhir:ContactPoint.value</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;info@hl7.org.vn&quot; ]
     ]
  ] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.description">fhir:StructureDefinition.description</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#markdown">fhir:value</a> &quot;Tuần tuổi thai thực tế tại thời điểm thực hiện thủ thuật/ghi nhận trên giấy tờ KCB, tính bằng số nguyên tuần (1–42 tuần).\nMapping QĐ 3176/QĐ-BYT: TUOI_THAI (Bảng 7 STT 10 — Giấy ra viện; Bảng 11 STT 12 — Giấy chứng nhận nghỉ việc hưởng BHXH).\nTrường TUOI_THAI bắt buộc theo điều kiện khi MA_DINH_CHI_THAI='1' (đình chỉ thai nghén). Quan hệ điều kiện này được ràng buộc ở tầng logical model qua invariant `bhyt-xml7-abortion-fields-required` (Bảng 7) và `bhyt-xml11-abortion-fields-required` (Bảng 11); extension chỉ mang giá trị số tuần, không tự enforce điều kiện bắt buộc.\nActual gestational age in whole weeks (1–42) at the time of the procedure or when recorded on the KCB document; FHIR R4 base has no gestational-age element on Procedure/DocumentReference.\nCăn cứ: QĐ 3176/QĐ-BYT (29/10/2024).&quot;] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.jurisdiction">fhir:StructureDefinition.jurisdiction</a> [
     <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
     <a href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept#CodeableConcept.coding">fhir:CodeableConcept.coding</a> [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#Coding#Coding.system">fhir:Coding.system</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;urn:iso:std:iso:3166&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#Coding#Coding.code">fhir:Coding.code</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;VN&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#Coding#Coding.display">fhir:Coding.display</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Viet Nam&quot; ]
     ]
  ] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.fhirVersion">fhir:StructureDefinition.fhirVersion</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;4.0.1&quot;] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.mapping">fhir:StructureDefinition.mapping</a> [
     <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
     <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.mapping.identity">fhir:StructureDefinition.mapping.identity</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#id">fhir:value</a> &quot;rim&quot; ] ;
     <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.mapping.uri">fhir:StructureDefinition.mapping.uri</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;http://hl7.org/v3&quot; ] ;
     <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.mapping.name">fhir:StructureDefinition.mapping.name</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;RIM Mapping&quot; ]
  ] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.kind">fhir:StructureDefinition.kind</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;complex-type&quot;] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.abstract">fhir:StructureDefinition.abstract</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#boolean">fhir:value</a> &quot;false&quot;^^xsd:boolean] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.context">fhir:StructureDefinition.context</a> [
     <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
     <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.context.type">fhir:StructureDefinition.context.type</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;element&quot; ] ;
     <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.context.expression">fhir:StructureDefinition.context.expression</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Procedure&quot; ]
  ], [
     <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
     <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.context.type">fhir:StructureDefinition.context.type</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;element&quot; ] ;
     <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.context.expression">fhir:StructureDefinition.context.expression</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;DocumentReference&quot; ]
  ] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.type">fhir:StructureDefinition.type</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;Extension&quot;] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.baseDefinition">fhir:StructureDefinition.baseDefinition</a> [
     <a href="http://hl7.org/fhir/R4/datatypes.html#canonical">fhir:value</a> &quot;http://hl7.org/fhir/StructureDefinition/Extension&quot; ;
     <a href="http://hl7.org/fhir/R4/rdf.html#reference">fhir:link</a> &lt;http://hl7.org/fhir/StructureDefinition/Extension&gt;
  ] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.derivation">fhir:StructureDefinition.derivation</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;constraint&quot;] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.snapshot">fhir:StructureDefinition.snapshot</a> [
     <a href="http://hl7.org/fhir/R4/datatypes.html#Element#StructureDefinition.snapshot.extension">fhir:Element.extension</a> [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/extensibility.html#Extension#Extension.url">fhir:Extension.url</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version&quot; ] ;
       <a href="http://hl7.org/fhir/R4/extensibility.html#Extension#Extension.value_x_">fhir:Extension.valueString</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;4.0.1&quot; ]
     ] ;
     <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.snapshot.element">fhir:StructureDefinition.snapshot.element</a> [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#Element#ElementDefinition.id">fhir:Element.id</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.path">fhir:ElementDefinition.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.short">fhir:ElementDefinition.short</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Tuổi thai — Gestational Age Extension&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.definition">fhir:ElementDefinition.definition</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#markdown">fhir:value</a> &quot;Tuần tuổi thai thực tế tại thời điểm thực hiện thủ thuật/ghi nhận trên giấy tờ KCB, tính bằng số nguyên tuần (1–42 tuần).\nMapping QĐ 3176/QĐ-BYT: TUOI_THAI (Bảng 7 STT 10 — Giấy ra viện; Bảng 11 STT 12 — Giấy chứng nhận nghỉ việc hưởng BHXH).\nTrường TUOI_THAI bắt buộc theo điều kiện khi MA_DINH_CHI_THAI='1' (đình chỉ thai nghén). Quan hệ điều kiện này được ràng buộc ở tầng logical model qua invariant `bhyt-xml7-abortion-fields-required` (Bảng 7) và `bhyt-xml11-abortion-fields-required` (Bảng 11); extension chỉ mang giá trị số tuần, không tự enforce điều kiện bắt buộc.\nActual gestational age in whole weeks (1–42) at the time of the procedure or when recorded on the KCB document; FHIR R4 base has no gestational-age element on Procedure/DocumentReference.\nCăn cứ: QĐ 3176/QĐ-BYT (29/10/2024).&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.min">fhir:ElementDefinition.min</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#unsignedInt">fhir:value</a> &quot;0&quot;^^xsd:nonNegativeInteger ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.max">fhir:ElementDefinition.max</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;*&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base">fhir:ElementDefinition.base</a> [
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.path">fhir:ElementDefinition.base.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.min">fhir:ElementDefinition.base.min</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#unsignedInt">fhir:value</a> &quot;0&quot;^^xsd:nonNegativeInteger ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.max">fhir:ElementDefinition.base.max</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;*&quot; ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.condition">fhir:ElementDefinition.condition</a> [
         <a href="http://hl7.org/fhir/R4/datatypes.html#id">fhir:value</a> &quot;ele-1&quot; ;
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint">fhir:ElementDefinition.constraint</a> [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.key">fhir:ElementDefinition.constraint.key</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#id">fhir:value</a> &quot;ele-1&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.severity">fhir:ElementDefinition.constraint.severity</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;error&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.human">fhir:ElementDefinition.constraint.human</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;All FHIR elements must have a @value or children&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.expression">fhir:ElementDefinition.constraint.expression</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;hasValue() or (children().count() &gt; id.count())&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.xpath">fhir:ElementDefinition.constraint.xpath</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;@value|f:*|h:div&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.source">fhir:ElementDefinition.constraint.source</a> [
           <a href="http://hl7.org/fhir/R4/datatypes.html#canonical">fhir:value</a> &quot;http://hl7.org/fhir/StructureDefinition/Element&quot; ;
           <a href="http://hl7.org/fhir/R4/rdf.html#reference">fhir:link</a> &lt;http://hl7.org/fhir/StructureDefinition/Element&gt;
         ]
       ], [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.key">fhir:ElementDefinition.constraint.key</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#id">fhir:value</a> &quot;ext-1&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.severity">fhir:ElementDefinition.constraint.severity</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;error&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.human">fhir:ElementDefinition.constraint.human</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Must have either extensions or value[x], not both&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.expression">fhir:ElementDefinition.constraint.expression</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;extension.exists() != value.exists()&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.xpath">fhir:ElementDefinition.constraint.xpath</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.source">fhir:ElementDefinition.constraint.source</a> [
           <a href="http://hl7.org/fhir/R4/datatypes.html#canonical">fhir:value</a> &quot;http://hl7.org/fhir/StructureDefinition/Extension&quot; ;
           <a href="http://hl7.org/fhir/R4/rdf.html#reference">fhir:link</a> &lt;http://hl7.org/fhir/StructureDefinition/Extension&gt;
         ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.isModifier">fhir:ElementDefinition.isModifier</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#boolean">fhir:value</a> &quot;false&quot;^^xsd:boolean ]
     ], [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#Element#ElementDefinition.id">fhir:Element.id</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.id&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.path">fhir:ElementDefinition.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.id&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.representation">fhir:ElementDefinition.representation</a> [
         <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;xmlAttr&quot; ;
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.short">fhir:ElementDefinition.short</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Unique id for inter-element referencing&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.definition">fhir:ElementDefinition.definition</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#markdown">fhir:value</a> &quot;Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.min">fhir:ElementDefinition.min</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#unsignedInt">fhir:value</a> &quot;0&quot;^^xsd:nonNegativeInteger ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.max">fhir:ElementDefinition.max</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;1&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base">fhir:ElementDefinition.base</a> [
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.path">fhir:ElementDefinition.base.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Element.id&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.min">fhir:ElementDefinition.base.min</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#unsignedInt">fhir:value</a> &quot;0&quot;^^xsd:nonNegativeInteger ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.max">fhir:ElementDefinition.base.max</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;1&quot; ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.type">fhir:ElementDefinition.type</a> [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#Element#ElementDefinition.type.extension">fhir:Element.extension</a> [
           <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
           <a href="http://hl7.org/fhir/R4/extensibility.html#Extension#Extension.url">fhir:Extension.url</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type&quot; ] ;
           <a href="http://hl7.org/fhir/R4/extensibility.html#Extension#Extension.value_x_">fhir:Extension.valueUrl</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#url">fhir:value</a> &quot;string&quot; ]
         ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.type.code">fhir:ElementDefinition.type.code</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;http://hl7.org/fhirpath/System.String&quot; ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.isModifier">fhir:ElementDefinition.isModifier</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#boolean">fhir:value</a> &quot;false&quot;^^xsd:boolean ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.isSummary">fhir:ElementDefinition.isSummary</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#boolean">fhir:value</a> &quot;false&quot;^^xsd:boolean ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.mapping">fhir:ElementDefinition.mapping</a> [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.mapping.identity">fhir:ElementDefinition.mapping.identity</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#id">fhir:value</a> &quot;rim&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.mapping.map">fhir:ElementDefinition.mapping.map</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;n/a&quot; ]
       ]
     ], [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#Element#ElementDefinition.id">fhir:Element.id</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.extension&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.path">fhir:ElementDefinition.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.extension&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.slicing">fhir:ElementDefinition.slicing</a> [
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.slicing.discriminator">fhir:ElementDefinition.slicing.discriminator</a> [
           <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
           <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.slicing.discriminator.type">fhir:ElementDefinition.slicing.discriminator.type</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;value&quot; ] ;
           <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.slicing.discriminator.path">fhir:ElementDefinition.slicing.discriminator.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;url&quot; ]
         ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.slicing.description">fhir:ElementDefinition.slicing.description</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extensions are always sliced by (at least) url&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.slicing.rules">fhir:ElementDefinition.slicing.rules</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;open&quot; ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.short">fhir:ElementDefinition.short</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.definition">fhir:ElementDefinition.definition</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#markdown">fhir:value</a> &quot;An Extension&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.min">fhir:ElementDefinition.min</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#unsignedInt">fhir:value</a> &quot;0&quot;^^xsd:nonNegativeInteger ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.max">fhir:ElementDefinition.max</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;0&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base">fhir:ElementDefinition.base</a> [
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.path">fhir:ElementDefinition.base.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Element.extension&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.min">fhir:ElementDefinition.base.min</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#unsignedInt">fhir:value</a> &quot;0&quot;^^xsd:nonNegativeInteger ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.max">fhir:ElementDefinition.base.max</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;*&quot; ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.type">fhir:ElementDefinition.type</a> [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.type.code">fhir:ElementDefinition.type.code</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;Extension&quot; ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint">fhir:ElementDefinition.constraint</a> [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.key">fhir:ElementDefinition.constraint.key</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#id">fhir:value</a> &quot;ele-1&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.severity">fhir:ElementDefinition.constraint.severity</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;error&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.human">fhir:ElementDefinition.constraint.human</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;All FHIR elements must have a @value or children&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.expression">fhir:ElementDefinition.constraint.expression</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;hasValue() or (children().count() &gt; id.count())&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.xpath">fhir:ElementDefinition.constraint.xpath</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;@value|f:*|h:div&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.source">fhir:ElementDefinition.constraint.source</a> [
           <a href="http://hl7.org/fhir/R4/datatypes.html#canonical">fhir:value</a> &quot;http://hl7.org/fhir/StructureDefinition/Element&quot; ;
           <a href="http://hl7.org/fhir/R4/rdf.html#reference">fhir:link</a> &lt;http://hl7.org/fhir/StructureDefinition/Element&gt;
         ]
       ], [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.key">fhir:ElementDefinition.constraint.key</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#id">fhir:value</a> &quot;ext-1&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.severity">fhir:ElementDefinition.constraint.severity</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;error&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.human">fhir:ElementDefinition.constraint.human</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Must have either extensions or value[x], not both&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.expression">fhir:ElementDefinition.constraint.expression</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;extension.exists() != value.exists()&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.xpath">fhir:ElementDefinition.constraint.xpath</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;exists(f:extension)!=exists(f:*[starts-with(local-name(.), \&quot;value\&quot;)])&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.source">fhir:ElementDefinition.constraint.source</a> [
           <a href="http://hl7.org/fhir/R4/datatypes.html#canonical">fhir:value</a> &quot;http://hl7.org/fhir/StructureDefinition/Extension&quot; ;
           <a href="http://hl7.org/fhir/R4/rdf.html#reference">fhir:link</a> &lt;http://hl7.org/fhir/StructureDefinition/Extension&gt;
         ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.isModifier">fhir:ElementDefinition.isModifier</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#boolean">fhir:value</a> &quot;false&quot;^^xsd:boolean ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.isSummary">fhir:ElementDefinition.isSummary</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#boolean">fhir:value</a> &quot;false&quot;^^xsd:boolean ]
     ], [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#Element#ElementDefinition.id">fhir:Element.id</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.url&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.path">fhir:ElementDefinition.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.url&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.representation">fhir:ElementDefinition.representation</a> [
         <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;xmlAttr&quot; ;
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.short">fhir:ElementDefinition.short</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;identifies the meaning of the extension&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.definition">fhir:ElementDefinition.definition</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#markdown">fhir:value</a> &quot;Source of the definition for the extension code - a logical name or a URL.&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.comment">fhir:ElementDefinition.comment</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#markdown">fhir:value</a> &quot;The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.min">fhir:ElementDefinition.min</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#unsignedInt">fhir:value</a> &quot;1&quot;^^xsd:nonNegativeInteger ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.max">fhir:ElementDefinition.max</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;1&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base">fhir:ElementDefinition.base</a> [
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.path">fhir:ElementDefinition.base.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.url&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.min">fhir:ElementDefinition.base.min</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#unsignedInt">fhir:value</a> &quot;1&quot;^^xsd:nonNegativeInteger ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.max">fhir:ElementDefinition.base.max</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;1&quot; ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.type">fhir:ElementDefinition.type</a> [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#Element#ElementDefinition.type.extension">fhir:Element.extension</a> [
           <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
           <a href="http://hl7.org/fhir/R4/extensibility.html#Extension#Extension.url">fhir:Extension.url</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type&quot; ] ;
           <a href="http://hl7.org/fhir/R4/extensibility.html#Extension#Extension.value_x_">fhir:Extension.valueUrl</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#url">fhir:value</a> &quot;uri&quot; ]
         ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.type.code">fhir:ElementDefinition.type.code</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;http://hl7.org/fhirpath/System.String&quot; ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.fixed_x_">fhir:ElementDefinition.fixedUri</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-gestational-age&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.isModifier">fhir:ElementDefinition.isModifier</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#boolean">fhir:value</a> &quot;false&quot;^^xsd:boolean ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.isSummary">fhir:ElementDefinition.isSummary</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#boolean">fhir:value</a> &quot;false&quot;^^xsd:boolean ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.mapping">fhir:ElementDefinition.mapping</a> [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.mapping.identity">fhir:ElementDefinition.mapping.identity</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#id">fhir:value</a> &quot;rim&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.mapping.map">fhir:ElementDefinition.mapping.map</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;N/A&quot; ]
       ]
     ], [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#Element#ElementDefinition.id">fhir:Element.id</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.value[x]&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.path">fhir:ElementDefinition.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.value[x]&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.short">fhir:ElementDefinition.short</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Tuổi thai (tuần), 1–42 — TUOI_THAI&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.definition">fhir:ElementDefinition.definition</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#markdown">fhir:value</a> &quot;Số tuần tuổi thai thực tế (1–42 tuần) theo trường TUOI_THAI của QĐ 3176/QĐ-BYT (Bảng 7 STT 10, Bảng 11 STT 12). Bắt buộc theo điều kiện khi MA_DINH_CHI_THAI='1' — điều kiện được enforce bằng invariant `bhyt-xml7-abortion-fields-required` / `bhyt-xml11-abortion-fields-required` ở logical model, không phải bởi extension này.&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.min">fhir:ElementDefinition.min</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#unsignedInt">fhir:value</a> &quot;1&quot;^^xsd:nonNegativeInteger ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.max">fhir:ElementDefinition.max</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;1&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base">fhir:ElementDefinition.base</a> [
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.path">fhir:ElementDefinition.base.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.value[x]&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.min">fhir:ElementDefinition.base.min</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#unsignedInt">fhir:value</a> &quot;0&quot;^^xsd:nonNegativeInteger ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.base.max">fhir:ElementDefinition.base.max</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;1&quot; ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.type">fhir:ElementDefinition.type</a> [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.type.code">fhir:ElementDefinition.type.code</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;integer&quot; ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint">fhir:ElementDefinition.constraint</a> [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.key">fhir:ElementDefinition.constraint.key</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#id">fhir:value</a> &quot;ele-1&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.severity">fhir:ElementDefinition.constraint.severity</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;error&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.human">fhir:ElementDefinition.constraint.human</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;All FHIR elements must have a @value or children&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.expression">fhir:ElementDefinition.constraint.expression</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;hasValue() or (children().count() &gt; id.count())&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.xpath">fhir:ElementDefinition.constraint.xpath</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;@value|f:*|h:div&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.source">fhir:ElementDefinition.constraint.source</a> [
           <a href="http://hl7.org/fhir/R4/datatypes.html#canonical">fhir:value</a> &quot;http://hl7.org/fhir/StructureDefinition/Element&quot; ;
           <a href="http://hl7.org/fhir/R4/rdf.html#reference">fhir:link</a> &lt;http://hl7.org/fhir/StructureDefinition/Element&gt;
         ]
       ], [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.key">fhir:ElementDefinition.constraint.key</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#id">fhir:value</a> &quot;vn-gestational-age-range&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.severity">fhir:ElementDefinition.constraint.severity</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;error&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.human">fhir:ElementDefinition.constraint.human</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Tuổi thai phải nằm trong khoảng 1–42 tuần theo QĐ 3176/QĐ-BYT (trường TUOI_THAI). Gestational age must be within 1–42 weeks.&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.expression">fhir:ElementDefinition.constraint.expression</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;value.empty() or (value &gt;= 1 and value &lt;= 42)&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.source">fhir:ElementDefinition.constraint.source</a> [
           <a href="http://hl7.org/fhir/R4/datatypes.html#canonical">fhir:value</a> &quot;http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-gestational-age&quot; ;
           <a href="http://hl7.org/fhir/R4/rdf.html#reference">fhir:link</a> &lt;http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-gestational-age&gt;
         ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.isModifier">fhir:ElementDefinition.isModifier</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#boolean">fhir:value</a> &quot;false&quot;^^xsd:boolean ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.isSummary">fhir:ElementDefinition.isSummary</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#boolean">fhir:value</a> &quot;false&quot;^^xsd:boolean ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.mapping">fhir:ElementDefinition.mapping</a> [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.mapping.identity">fhir:ElementDefinition.mapping.identity</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#id">fhir:value</a> &quot;rim&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.mapping.map">fhir:ElementDefinition.mapping.map</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;N/A&quot; ]
       ]
     ]
  ] ;
  <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.differential">fhir:StructureDefinition.differential</a> [
     <a href="http://hl7.org/fhir/R4/structuredefinition.html#StructureDefinition.differential.element">fhir:StructureDefinition.differential.element</a> [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#Element#ElementDefinition.id">fhir:Element.id</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.path">fhir:ElementDefinition.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.short">fhir:ElementDefinition.short</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Tuổi thai — Gestational Age Extension&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.definition">fhir:ElementDefinition.definition</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#markdown">fhir:value</a> &quot;Tuần tuổi thai thực tế tại thời điểm thực hiện thủ thuật/ghi nhận trên giấy tờ KCB, tính bằng số nguyên tuần (1–42 tuần).\nMapping QĐ 3176/QĐ-BYT: TUOI_THAI (Bảng 7 STT 10 — Giấy ra viện; Bảng 11 STT 12 — Giấy chứng nhận nghỉ việc hưởng BHXH).\nTrường TUOI_THAI bắt buộc theo điều kiện khi MA_DINH_CHI_THAI='1' (đình chỉ thai nghén). Quan hệ điều kiện này được ràng buộc ở tầng logical model qua invariant `bhyt-xml7-abortion-fields-required` (Bảng 7) và `bhyt-xml11-abortion-fields-required` (Bảng 11); extension chỉ mang giá trị số tuần, không tự enforce điều kiện bắt buộc.\nActual gestational age in whole weeks (1–42) at the time of the procedure or when recorded on the KCB document; FHIR R4 base has no gestational-age element on Procedure/DocumentReference.\nCăn cứ: QĐ 3176/QĐ-BYT (29/10/2024).&quot; ]
     ], [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#Element#ElementDefinition.id">fhir:Element.id</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.extension&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.path">fhir:ElementDefinition.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.extension&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.max">fhir:ElementDefinition.max</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;0&quot; ]
     ], [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#Element#ElementDefinition.id">fhir:Element.id</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.url&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.path">fhir:ElementDefinition.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.url&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.fixed_x_">fhir:ElementDefinition.fixedUri</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-gestational-age&quot; ]
     ], [
       <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#Element#ElementDefinition.id">fhir:Element.id</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.value[x]&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.path">fhir:ElementDefinition.path</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Extension.value[x]&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.short">fhir:ElementDefinition.short</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Tuổi thai (tuần), 1–42 — TUOI_THAI&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.definition">fhir:ElementDefinition.definition</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#markdown">fhir:value</a> &quot;Số tuần tuổi thai thực tế (1–42 tuần) theo trường TUOI_THAI của QĐ 3176/QĐ-BYT (Bảng 7 STT 10, Bảng 11 STT 12). Bắt buộc theo điều kiện khi MA_DINH_CHI_THAI='1' — điều kiện được enforce bằng invariant `bhyt-xml7-abortion-fields-required` / `bhyt-xml11-abortion-fields-required` ở logical model, không phải bởi extension này.&quot; ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.min">fhir:ElementDefinition.min</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#unsignedInt">fhir:value</a> &quot;1&quot;^^xsd:nonNegativeInteger ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.type">fhir:ElementDefinition.type</a> [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.type.code">fhir:ElementDefinition.type.code</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#uri">fhir:value</a> &quot;integer&quot; ]
       ] ;
       <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint">fhir:ElementDefinition.constraint</a> [
         <a href="http://hl7.org/fhir/R4/rdf.html#index">fhir:index</a> -1 ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.key">fhir:ElementDefinition.constraint.key</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#id">fhir:value</a> &quot;vn-gestational-age-range&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.severity">fhir:ElementDefinition.constraint.severity</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#code">fhir:value</a> &quot;error&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.human">fhir:ElementDefinition.constraint.human</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;Tuổi thai phải nằm trong khoảng 1–42 tuần theo QĐ 3176/QĐ-BYT (trường TUOI_THAI). Gestational age must be within 1–42 weeks.&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.expression">fhir:ElementDefinition.constraint.expression</a> [ <a href="http://hl7.org/fhir/R4/datatypes.html#string">fhir:value</a> &quot;value.empty() or (value &gt;= 1 and value &lt;= 42)&quot; ] ;
         <a href="http://hl7.org/fhir/R4/datatypes.html#ElementDefinition#ElementDefinition.constraint.source">fhir:ElementDefinition.constraint.source</a> [
           <a href="http://hl7.org/fhir/R4/datatypes.html#canonical">fhir:value</a> &quot;http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-gestational-age&quot; ;
           <a href="http://hl7.org/fhir/R4/rdf.html#reference">fhir:link</a> &lt;http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-gestational-age&gt;
         ]
       ]
     ]
  ] .

# - ontology header ------------------------------------------------------------

&lt;http://hl7.org/fhir/StructureDefinition/vn-ext-gestational-age.ttl&gt; a owl:Ontology ;
  owl:imports fhir:fhir.ttl ;
  owl:versionIRI &lt;http://build.fhir.org/StructureDefinition/vn-ext-gestational-age.ttl&gt; .

</pre>



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