HL7 Vietnam VN Core FHIR Implementation Guide

Bộ Hướng dẫn Triển khai Core FHIR cho Việt Nam
0.5.0 - Draft for Community Review

Bộ Hướng dẫn Triển khai Core FHIR cho Việt Nam - Local Development build (v0.5.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

## Phần mở rộng: Thời hạn lưu trữ log audit — VN Audit Retention Period - Hồ sơ TTL

Draft tại thời điểm 2026-04-26

Biểu diễn TTL của vn-ext-audit-retention phần mở rộng.

Raw ttl | Download

    @prefix fhir: <http://hl7.org/fhir/> .
    @prefix owl: <http://www.w3.org/2002/07/owl#> .
    @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
    @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
    @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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

     a fhir:StructureDefinition ;
      fhir:nodeRole fhir:treeRoot ;
      fhir:id [ fhir:v "vn-ext-audit-retention"] ; #
      fhir:language [ fhir:v "vi"] ; #
      fhir:text [
    fhir:status [ fhir:v "extensions" ] ;
    fhir:div [ fhir:v "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: StructureDefinition vn-ext-audit-retention</b></p><a name=\"vn-ext-audit-retention\"> </a><a name=\"hcvn-ext-audit-retention\"> </a><table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" style=\"border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;\"><tr style=\"border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top\"><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"The logical name of the element\">Name</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Information about the use of the element\">Flags</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Minimum and Maximum # of times the element can appear in the instance\">Card.</a></th><th style=\"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\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Reference to the type of the element\">Type</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Additional information about the element\">Description &amp; Constraints</a><span style=\"float: right\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Legend for this format\"><img src=\"data:image/png;base64, \" alt=\"doco\" style=\"background-color: inherit\"/></a></span></th></tr><tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : 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)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-vn-ext-audit-retention-definitions.html#Extension\" title=\"Thời hạn lưu trữ bắt buộc của log audit liên quan đến vi phạm DLCN.#xA;Căn cứ: NĐ 356/2025/NĐ-CP Điều 29 khoản 1 điểm c — 'Tổ chức phải lưu hồ sơ vi phạm trong thời gian tối thiểu 5 năm kể từ ngày khắc phục xong sự cố' (đối với dữ liệu vị trí + sinh trắc học).#xA;Đặt extension này trên AuditEvent để ghi nhận điểm bắt đầu retention period (typically từ ngày khắc phục xong sự cố vi phạm) và end date dự kiến.#xA;Khuyến nghị mặc định 5 năm cho mọi loại DLCN nhạy cảm; có thể dài hơn nếu doanh nghiệp/quy chế nội bộ yêu cầu.\">Extension</a><a name=\"Extension\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">0</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">*</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/extensibility.html#Extension\">Extension</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Thời hạn lưu trữ log audit — VN Audit Retention Period</td></tr>#xD;\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td 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(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_extension_simple.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Simple Extension\" class=\"hierarchy\"/> <a style=\"text-decoration:line-through; text-decoration:line-through\" href=\"StructureDefinition-vn-ext-audit-retention-definitions.html#Extension.extension\">extension</a><a name=\"Extension.extension\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"text-decoration:line-through\"/><span style=\"text-decoration:line-through\">0</span><span style=\"text-decoration:line-through\">..</span><span style=\"text-decoration:line-through\">0</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"font-style: italic\">Extension</span></td></tr>#xD;\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td 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(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-vn-ext-audit-retention-definitions.html#Extension.url\">url</a><a name=\"Extension.url\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">1</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4/datatypes.html#uri\">uri</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"color: darkgreen\">\"http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-audit-retention\"</span></td></tr>#xD;\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td 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(tbl_bck01.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_datatype.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-vn-ext-audit-retention-definitions.html#Extension.value[x]\">value[x]</a><a name=\"Extension.value_x_\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">0</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/datatypes.html#Period\">Period</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Period với start = ngày khắc phục, end = start + tối thiểu 5 năm</td></tr>#xD;\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td 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(tbl_bck010.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-vn-ext-audit-retention-definitions.html#Extension.value[x].start\">start</a><a name=\"Extension.value_x_.start\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..<span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4/datatypes.html#dateTime\">dateTime</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Ngày bắt đầu retention (thường = ngày khắc phục xong sự cố)</td></tr>#xD;\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td 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(tbl_bck000.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-vn-ext-audit-retention-definitions.html#Extension.value[x].end\">end</a><a name=\"Extension.value_x_.end\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">0</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4/datatypes.html#dateTime\">dateTime</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Ngày dự kiến kết thúc retention (≥ start + 5 năm theo NĐ 356 Điều 29)</td></tr>#xD;\n<tr><td colspan=\"5\" class=\"hierarchy\"><br/><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Legend for this format\"><img src=\"data:image/png;base64, \" alt=\"doco\" style=\"background-color: inherit\"/> Documentation for this format</a></td></tr></table></div>"^^rdf:XMLLiteral ]
      ] ; #
      fhir:extension ( [
    fhir:url [
    fhir:v "http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-legal-basis"^^xsd:anyURI ;
    fhir:l <http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-legal-basis>     ] ;
    fhir:value [
    a fhir:Coding ;
    fhir:system [
    fhir:v "http://fhir.hl7.org.vn/core/CodeSystem/vn-legal-document-ref-cs"^^xsd:anyURI ;
    fhir:l <http://fhir.hl7.org.vn/core/CodeSystem/vn-legal-document-ref-cs>       ] ;
    fhir:code [ fhir:v "ND-356-2025" ]     ]
      ] ) ; #
      fhir:url [
    fhir:v "http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-audit-retention"^^xsd:anyURI ;
    fhir:l <http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-audit-retention>
      ] ; #
      fhir:version [ fhir:v "0.5.0"] ; #
      fhir:name [ fhir:v "VNCoreExtAuditRetention"] ; #
      fhir:title [ fhir:v "Thời hạn lưu trữ log audit — VN Audit Retention Period"] ; #
      fhir:status [ fhir:v "draft"] ; #
      fhir:date [ fhir:v "2026-04-26"^^xsd:date] ; #
      fhir:publisher [ fhir:v "Omi HealthTech / VN Core FHIR Community Initiative"] ; #
      fhir:contact ( [
    fhir:name [ fhir:v "Omi HealthTech / VN Core FHIR Community Initiative" ] ;
        ( fhir:telecom [
    fhir:system [ fhir:v "url" ] ;
    fhir:value [ fhir:v "https://hl7.org.vn" ]     ] [
    fhir:system [ fhir:v "email" ] ;
    fhir:value [ fhir:v "info@hl7.org.vn" ]     ] )
      ] [
    fhir:name [ fhir:v "Omi HealthTech (OmiGroup)" ] ;
        ( fhir:telecom [
    fhir:system [ fhir:v "url" ] ;
    fhir:value [ fhir:v "https://omihealthtech.vn" ]     ] [
    fhir:system [ fhir:v "url" ] ;
    fhir:value [ fhir:v "https://omigroup.vn" ]     ] [
    fhir:system [ fhir:v "email" ] ;
    fhir:value [ fhir:v "healthtech@omigroup.vn" ]     ] )
      ] ) ; #
      fhir:description [ fhir:v "Thời hạn lưu trữ bắt buộc của log audit liên quan đến vi phạm DLCN.\nCăn cứ: NĐ 356/2025/NĐ-CP Điều 29 khoản 1 điểm c — 'Tổ chức phải lưu hồ sơ vi phạm trong thời gian tối thiểu 5 năm kể từ ngày khắc phục xong sự cố' (đối với dữ liệu vị trí + sinh trắc học).\nĐặt extension này trên AuditEvent để ghi nhận điểm bắt đầu retention period (typically từ ngày khắc phục xong sự cố vi phạm) và end date dự kiến.\nKhuyến nghị mặc định 5 năm cho mọi loại DLCN nhạy cảm; có thể dài hơn nếu doanh nghiệp/quy chế nội bộ yêu cầu."] ; #
      fhir:jurisdiction ( [
        ( fhir:coding [
    fhir:system [
    fhir:v "urn:iso:std:iso:3166"^^xsd:anyURI ;
    fhir:l <urn:iso:std:iso:3166>       ] ;
    fhir:code [ fhir:v "VN" ] ;
    fhir:display [ fhir:v "Viet Nam" ]     ] )
      ] ) ; #
      fhir:copyright [ fhir:v "Chính phủ — NĐ 356/2025/NĐ-CP Điều 29."] ; #
      fhir:fhirVersion [ fhir:v "4.0.1"] ; #
      fhir:mapping ( [
    fhir:identity [ fhir:v "rim" ] ;
    fhir:uri [
    fhir:v "http://hl7.org/v3"^^xsd:anyURI ;
    fhir:l <http://hl7.org/v3>     ] ;
    fhir:name [ fhir:v "RIM Mapping" ]
      ] ) ; #
      fhir:kind [ fhir:v "complex-type"] ; #
      fhir:abstract [ fhir:v false] ; #
      fhir:context ( [
    fhir:type [ fhir:v "element" ] ;
    fhir:expression [ fhir:v "AuditEvent" ]
      ] ) ; #
      fhir:type [
    fhir:v "Extension"^^xsd:anyURI ;
    fhir:l fhir:Extension
      ] ; #
      fhir:baseDefinition [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Extension"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Extension>
      ] ; #
      fhir:derivation [ fhir:v "constraint"] ; #
      fhir:snapshot [
        ( fhir:extension [
    fhir:url [
    fhir:v "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version>       ] ;
    fhir:value [
    a fhir:String ;
    fhir:v "4.0.1"       ]     ] ) ;
        ( fhir:element [
    fhir:id [ fhir:v "Extension" ] ;
    fhir:path [ fhir:v "Extension" ] ;
    fhir:short [ fhir:v "Thời hạn lưu trữ log audit — VN Audit Retention Period" ] ;
    fhir:definition [ fhir:v "Thời hạn lưu trữ bắt buộc của log audit liên quan đến vi phạm DLCN.\nCăn cứ: NĐ 356/2025/NĐ-CP Điều 29 khoản 1 điểm c — 'Tổ chức phải lưu hồ sơ vi phạm trong thời gian tối thiểu 5 năm kể từ ngày khắc phục xong sự cố' (đối với dữ liệu vị trí + sinh trắc học).\nĐặt extension này trên AuditEvent để ghi nhận điểm bắt đầu retention period (typically từ ngày khắc phục xong sự cố vi phạm) và end date dự kiến.\nKhuyến nghị mặc định 5 năm cho mọi loại DLCN nhạy cảm; có thể dài hơn nếu doanh nghiệp/quy chế nội bộ yêu cầu." ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "*" ] ;
    fhir:base [
    fhir:path [ fhir:v "Extension" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "*" ]       ] ;
          ( fhir:condition [ fhir:v "ele-1" ] ) ;
          ( fhir:constraint [
    fhir:key [ fhir:v "ele-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "All FHIR elements must have a @value or children" ] ;
    fhir:expression [ fhir:v "hasValue() or (children().count() > id.count())" ] ;
    fhir:xpath [ fhir:v "@value|f:*|h:div" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Element"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Element>         ]       ] [
    fhir:key [ fhir:v "ext-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "Must have either extensions or value[x], not both" ] ;
    fhir:expression [ fhir:v "extension.exists() != value.exists()" ] ;
    fhir:xpath [ fhir:v "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Extension"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Extension>         ]       ] ) ;
    fhir:isModifier [ fhir:v false ]     ] [
    fhir:id [ fhir:v "Extension.id" ] ;
    fhir:path [ fhir:v "Extension.id" ] ;
          ( fhir:representation [ fhir:v "xmlAttr" ] ) ;
    fhir:short [ fhir:v "Unique id for inter-element referencing" ] ;
    fhir:definition [ fhir:v "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ] ;
    fhir:base [
    fhir:path [ fhir:v "Element.id" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ]       ] ;
          ( fhir:type [
            ( fhir:extension [
    fhir:url [
    fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type>           ] ;
    fhir:value [
    a fhir:Url ;
    fhir:v "string"^^xsd:anyURI ;
    fhir:l fhir:string           ]         ] ) ;
    fhir:code [
    fhir:v "http://hl7.org/fhirpath/System.String"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhirpath/System.String>         ]       ] ) ;
    fhir:isModifier [ fhir:v false ] ;
    fhir:isSummary [ fhir:v false ] ;
          ( fhir:mapping [
    fhir:identity [ fhir:v "rim" ] ;
    fhir:map [ fhir:v "n/a" ]       ] )     ] [
    fhir:id [ fhir:v "Extension.extension" ] ;
    fhir:path [ fhir:v "Extension.extension" ] ;
    fhir:slicing [
            ( fhir:discriminator [
    fhir:type [ fhir:v "value" ] ;
    fhir:path [ fhir:v "url" ]         ] ) ;
    fhir:description [ fhir:v "Extensions are always sliced by (at least) url" ] ;
    fhir:rules [ fhir:v "open" ]       ] ;
    fhir:short [ fhir:v "Extension" ] ;
    fhir:definition [ fhir:v "An Extension" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "0" ] ;
    fhir:base [
    fhir:path [ fhir:v "Element.extension" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "*" ]       ] ;
          ( fhir:type [
    fhir:code [
    fhir:v "Extension"^^xsd:anyURI ;
    fhir:l fhir:Extension         ]       ] ) ;
          ( fhir:constraint [
    fhir:key [ fhir:v "ele-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "All FHIR elements must have a @value or children" ] ;
    fhir:expression [ fhir:v "hasValue() or (children().count() > id.count())" ] ;
    fhir:xpath [ fhir:v "@value|f:*|h:div" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Element"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Element>         ]       ] [
    fhir:key [ fhir:v "ext-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "Must have either extensions or value[x], not both" ] ;
    fhir:expression [ fhir:v "extension.exists() != value.exists()" ] ;
    fhir:xpath [ fhir:v "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Extension"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Extension>         ]       ] ) ;
    fhir:isModifier [ fhir:v false ] ;
    fhir:isSummary [ fhir:v false ]     ] [
    fhir:id [ fhir:v "Extension.url" ] ;
    fhir:path [ fhir:v "Extension.url" ] ;
          ( fhir:representation [ fhir:v "xmlAttr" ] ) ;
    fhir:short [ fhir:v "identifies the meaning of the extension" ] ;
    fhir:definition [ fhir:v "Source of the definition for the extension code - a logical name or a URL." ] ;
    fhir:comment [ fhir:v "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." ] ;
    fhir:min [ fhir:v "1"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ] ;
    fhir:base [
    fhir:path [ fhir:v "Extension.url" ] ;
    fhir:min [ fhir:v "1"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ]       ] ;
          ( fhir:type [
            ( fhir:extension [
    fhir:url [
    fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type>           ] ;
    fhir:value [
    a fhir:Url ;
    fhir:v "uri"^^xsd:anyURI ;
    fhir:l fhir:uri           ]         ] ) ;
    fhir:code [
    fhir:v "http://hl7.org/fhirpath/System.String"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhirpath/System.String>         ]       ] ) ;
    fhir:fixed [
    a fhir:Uri ;
    fhir:v "http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-audit-retention"^^xsd:anyURI ;
    fhir:l <http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-audit-retention>       ] ;
    fhir:isModifier [ fhir:v false ] ;
    fhir:isSummary [ fhir:v false ] ;
          ( fhir:mapping [
    fhir:identity [ fhir:v "rim" ] ;
    fhir:map [ fhir:v "N/A" ]       ] )     ] [
    fhir:id [ fhir:v "Extension.value[x]" ] ;
    fhir:path [ fhir:v "Extension.value[x]" ] ;
    fhir:short [ fhir:v "Period với start = ngày khắc phục, end = start + tối thiểu 5 năm" ] ;
    fhir:definition [ fhir:v "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list)." ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ] ;
    fhir:base [
    fhir:path [ fhir:v "Extension.value[x]" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ]       ] ;
          ( fhir:type [
    fhir:code [
    fhir:v "Period"^^xsd:anyURI ;
    fhir:l fhir:Period         ]       ] ) ;
          ( fhir:constraint [
    fhir:key [ fhir:v "ele-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "All FHIR elements must have a @value or children" ] ;
    fhir:expression [ fhir:v "hasValue() or (children().count() > id.count())" ] ;
    fhir:xpath [ fhir:v "@value|f:*|h:div" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Element"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Element>         ]       ] ) ;
    fhir:isModifier [ fhir:v false ] ;
    fhir:isSummary [ fhir:v false ] ;
          ( fhir:mapping [
    fhir:identity [ fhir:v "rim" ] ;
    fhir:map [ fhir:v "N/A" ]       ] )     ] [
    fhir:id [ fhir:v "Extension.value[x].id" ] ;
    fhir:path [ fhir:v "Extension.value[x].id" ] ;
          ( fhir:representation [ fhir:v "xmlAttr" ] ) ;
    fhir:short [ fhir:v "Unique id for inter-element referencing" ] ;
    fhir:definition [ fhir:v "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ] ;
    fhir:base [
    fhir:path [ fhir:v "Element.id" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ]       ] ;
          ( fhir:type [
            ( fhir:extension [
    fhir:url [
    fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type>           ] ;
    fhir:value [
    a fhir:Url ;
    fhir:v "string"^^xsd:anyURI ;
    fhir:l fhir:string           ]         ] ) ;
    fhir:code [
    fhir:v "http://hl7.org/fhirpath/System.String"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhirpath/System.String>         ]       ] ) ;
    fhir:isModifier [ fhir:v false ] ;
    fhir:isSummary [ fhir:v false ] ;
          ( fhir:mapping [
    fhir:identity [ fhir:v "rim" ] ;
    fhir:map [ fhir:v "n/a" ]       ] )     ] [
    fhir:id [ fhir:v "Extension.value[x].extension" ] ;
    fhir:path [ fhir:v "Extension.value[x].extension" ] ;
    fhir:slicing [
            ( fhir:discriminator [
    fhir:type [ fhir:v "value" ] ;
    fhir:path [ fhir:v "url" ]         ] ) ;
    fhir:description [ fhir:v "Extensions are always sliced by (at least) url" ] ;
    fhir:rules [ fhir:v "open" ]       ] ;
    fhir:short [ fhir:v "Additional content defined by implementations" ] ;
    fhir:definition [ fhir:v "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension." ] ;
    fhir:comment [ fhir:v "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." ] ;
          ( fhir:alias [ fhir:v "extensions" ] [ fhir:v "user content" ] ) ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "*" ] ;
    fhir:base [
    fhir:path [ fhir:v "Element.extension" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "*" ]       ] ;
          ( fhir:type [
    fhir:code [
    fhir:v "Extension"^^xsd:anyURI ;
    fhir:l fhir:Extension         ]       ] ) ;
          ( fhir:constraint [
    fhir:key [ fhir:v "ele-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "All FHIR elements must have a @value or children" ] ;
    fhir:expression [ fhir:v "hasValue() or (children().count() > id.count())" ] ;
    fhir:xpath [ fhir:v "@value|f:*|h:div" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Element"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Element>         ]       ] [
    fhir:key [ fhir:v "ext-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "Must have either extensions or value[x], not both" ] ;
    fhir:expression [ fhir:v "extension.exists() != value.exists()" ] ;
    fhir:xpath [ fhir:v "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Extension"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Extension>         ]       ] ) ;
    fhir:isModifier [ fhir:v false ] ;
    fhir:isSummary [ fhir:v false ] ;
          ( fhir:mapping [
    fhir:identity [ fhir:v "rim" ] ;
    fhir:map [ fhir:v "n/a" ]       ] )     ] [
    fhir:id [ fhir:v "Extension.value[x].start" ] ;
    fhir:path [ fhir:v "Extension.value[x].start" ] ;
    fhir:short [ fhir:v "Ngày bắt đầu retention (thường = ngày khắc phục xong sự cố)" ] ;
    fhir:definition [ fhir:v "The start of the period. The boundary is inclusive." ] ;
    fhir:comment [ fhir:v "If the low element is missing, the meaning is that the low boundary is not known." ] ;
    fhir:min [ fhir:v "1"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ] ;
    fhir:base [
    fhir:path [ fhir:v "Period.start" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ]       ] ;
          ( fhir:type [
    fhir:code [
    fhir:v "dateTime"^^xsd:anyURI ;
    fhir:l fhir:dateTime         ]       ] ) ;
          ( fhir:condition [ fhir:v "per-1" ] ) ;
          ( fhir:constraint [
    fhir:key [ fhir:v "ele-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "All FHIR elements must have a @value or children" ] ;
    fhir:expression [ fhir:v "hasValue() or (children().count() > id.count())" ] ;
    fhir:xpath [ fhir:v "@value|f:*|h:div" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Element"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Element>         ]       ] ) ;
    fhir:isModifier [ fhir:v false ] ;
    fhir:isSummary [ fhir:v true ] ;
          ( fhir:mapping [
    fhir:identity [ fhir:v "v2" ] ;
    fhir:map [ fhir:v "DR.1" ]       ] [
    fhir:identity [ fhir:v "rim" ] ;
    fhir:map [ fhir:v "./low" ]       ] )     ] [
    fhir:id [ fhir:v "Extension.value[x].end" ] ;
    fhir:path [ fhir:v "Extension.value[x].end" ] ;
    fhir:short [ fhir:v "Ngày dự kiến kết thúc retention (≥ start + 5 năm theo NĐ 356 Điều 29)" ] ;
    fhir:definition [ fhir:v "The end of the period. If the end of the period is missing, it means no end was known or planned at the time the instance was created. The start may be in the past, and the end date in the future, which means that period is expected/planned to end at that time." ] ;
    fhir:comment [ fhir:v "The high value includes any matching date/time. i.e. 2012-02-03T10:00:00 is in a period that has an end value of 2012-02-03." ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ] ;
    fhir:base [
    fhir:path [ fhir:v "Period.end" ] ;
    fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ;
    fhir:max [ fhir:v "1" ]       ] ;
          ( fhir:type [
    fhir:code [
    fhir:v "dateTime"^^xsd:anyURI ;
    fhir:l fhir:dateTime         ]       ] ) ;
    fhir:meaningWhenMissing [ fhir:v "If the end of the period is missing, it means that the period is ongoing" ] ;
          ( fhir:condition [ fhir:v "per-1" ] ) ;
          ( fhir:constraint [
    fhir:key [ fhir:v "ele-1" ] ;
    fhir:severity [ fhir:v "error" ] ;
    fhir:human [ fhir:v "All FHIR elements must have a @value or children" ] ;
    fhir:expression [ fhir:v "hasValue() or (children().count() > id.count())" ] ;
    fhir:xpath [ fhir:v "@value|f:*|h:div" ] ;
    fhir:source [
    fhir:v "http://hl7.org/fhir/StructureDefinition/Element"^^xsd:anyURI ;
    fhir:l <http://hl7.org/fhir/StructureDefinition/Element>         ]       ] ) ;
    fhir:isModifier [ fhir:v false ] ;
    fhir:isSummary [ fhir:v true ] ;
          ( fhir:mapping [
    fhir:identity [ fhir:v "v2" ] ;
    fhir:map [ fhir:v "DR.2" ]       ] [
    fhir:identity [ fhir:v "rim" ] ;
    fhir:map [ fhir:v "./high" ]       ] )     ] )
      ] ; #
      fhir:differential [
        ( fhir:element [
    fhir:id [ fhir:v "Extension" ] ;
    fhir:path [ fhir:v "Extension" ] ;
    fhir:short [ fhir:v "Thời hạn lưu trữ log audit — VN Audit Retention Period" ] ;
    fhir:definition [ fhir:v "Thời hạn lưu trữ bắt buộc của log audit liên quan đến vi phạm DLCN.\nCăn cứ: NĐ 356/2025/NĐ-CP Điều 29 khoản 1 điểm c — 'Tổ chức phải lưu hồ sơ vi phạm trong thời gian tối thiểu 5 năm kể từ ngày khắc phục xong sự cố' (đối với dữ liệu vị trí + sinh trắc học).\nĐặt extension này trên AuditEvent để ghi nhận điểm bắt đầu retention period (typically từ ngày khắc phục xong sự cố vi phạm) và end date dự kiến.\nKhuyến nghị mặc định 5 năm cho mọi loại DLCN nhạy cảm; có thể dài hơn nếu doanh nghiệp/quy chế nội bộ yêu cầu." ]     ] [
    fhir:id [ fhir:v "Extension.extension" ] ;
    fhir:path [ fhir:v "Extension.extension" ] ;
    fhir:max [ fhir:v "0" ]     ] [
    fhir:id [ fhir:v "Extension.url" ] ;
    fhir:path [ fhir:v "Extension.url" ] ;
    fhir:fixed [
    a fhir:Uri ;
    fhir:v "http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-audit-retention"^^xsd:anyURI ;
    fhir:l <http://fhir.hl7.org.vn/core/StructureDefinition/vn-ext-audit-retention>       ]     ] [
    fhir:id [ fhir:v "Extension.value[x]" ] ;
    fhir:path [ fhir:v "Extension.value[x]" ] ;
    fhir:short [ fhir:v "Period với start = ngày khắc phục, end = start + tối thiểu 5 năm" ] ;
          ( fhir:type [
    fhir:code [
    fhir:v "Period"^^xsd:anyURI ;
    fhir:l fhir:Period         ]       ] )     ] [
    fhir:id [ fhir:v "Extension.value[x].start" ] ;
    fhir:path [ fhir:v "Extension.value[x].start" ] ;
    fhir:short [ fhir:v "Ngày bắt đầu retention (thường = ngày khắc phục xong sự cố)" ] ;
    fhir:min [ fhir:v "1"^^xsd:nonNegativeInteger ]     ] [
    fhir:id [ fhir:v "Extension.value[x].end" ] ;
    fhir:path [ fhir:v "Extension.value[x].end" ] ;
    fhir:short [ fhir:v "Ngày dự kiến kết thúc retention (≥ start + 5 năm theo NĐ 356 Điều 29)" ]     ] )
      ] . #