WHO Digital Documentation of COVID-19 Certificates (DDCC)
1.0.0 - CI Build International flag

WHO Digital Documentation of COVID-19 Certificates (DDCC), published by WHO. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/WorldHealthOrganization/ddcc/ and changes regularly. See the Directory of published versions

: DDCC:VS Core Data Set Questionnaire - JSON Representation

Draft as of 2021-12-22

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{
  "resourceType" : "Questionnaire",
  "id" : "DDCCVSCoreDataSetQuestionnaire",
  "meta" : {
    "profile" : [
      🔗 "http://smart.who.int/ddcc/StructureDefinition/DDCCQuestionnaire"
    ]
  },
  "text" : {
    "status" : "extensions",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: Questionnaire DDCCVSCoreDataSetQuestionnaire</b></p><a name=\"DDCCVSCoreDataSetQuestionnaire\"> </a><a name=\"hcDDCCVSCoreDataSetQuestionnaire\"> </a><a name=\"DDCCVSCoreDataSetQuestionnaire-en-US\"> </a><table border=\"1\" cellpadding=\"0\" cellspacing=\"0\" style=\"border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;\"><tr style=\"border: 2px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top\"><th style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"The linkID for the item\">LinkID</a></th><th style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"Text for the item\">Text</a></th><th style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"Minimum and Maximum # of times the item can appear in the instance\">Cardinality</a></th><th style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"The type of the item\">Type</a></th><th style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"Additional information about the item\">Description &amp; Constraints</a><span style=\"float: right\"><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"Legend for this format\"><img src=\"data:image/png;base64,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\" alt=\"doco\" style=\"background-color: inherit\"/></a></span></th></tr><tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #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_q_root.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"QuestionnaireRoot\" class=\"hierarchy\"/> DDCCVSCoreDataSetQuestionnaire</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">DDCC Questionnaire for an Immunization event.</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Questionnaire</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">http://smart.who.int/ddcc/DDCCVSCoreDataSetQuestionnaire#1.0.0</td></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.name\" 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-q-string.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"string\" class=\"hierarchy\"/> name</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Name</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..1</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-string\">string</a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.birthDate\" 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-q-date.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"date\" class=\"hierarchy\"/> birthDate</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Date of birth</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-date\">date</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.identifier\" 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-q-string.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"string\" class=\"hierarchy\"/> identifier</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Unique identifier</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-string\">string</a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.sex\" 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-q-coding.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"coding\" class=\"hierarchy\"/> sex</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Sex</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-choice\">choice</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Value Set: <a href=\"http://hl7.org/fhir/R4/valueset-administrative-gender.html\">AdministrativeGender</a></td></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.vaccine\" 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-q-coding.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"coding\" class=\"hierarchy\"/> vaccine</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Vaccine or prophylaxis</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..1</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-choice\">choice</a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Value Set: <a href=\"ValueSet-WHODDCCVaccinesCOVID19.html\">WHO Vaccine List (COVID-19)</a></td></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.brand\" 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-q-coding.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"coding\" class=\"hierarchy\"/> brand</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Vaccine brand</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..1</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-choice\">choice</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.manufacturer\" 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-q-coding.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"coding\" class=\"hierarchy\"/> manufacturer</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Vaccine manufacturer</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-choice\">choice</a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.ma_holder\" 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-q-coding.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"coding\" class=\"hierarchy\"/> ma_holder</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Vaccine market authorization holder</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-choice\">choice</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.lot\" 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-q-string.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"string\" class=\"hierarchy\"/> lot</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Vaccine batch number</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..1</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-string\">string</a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.date\" 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-q-date.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"date\" class=\"hierarchy\"/> date</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Date of vaccine</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..1</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-date\">date</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.vaccine_valid\" 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-q-date.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"date\" class=\"hierarchy\"/> vaccine_valid</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Vaccination valid from</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-date\">date</a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.dose\" 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-q-integer.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"integer\" class=\"hierarchy\"/> dose</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Dose number</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..1</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-integer\">integer</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.total_doses\" 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-q-integer.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"integer\" class=\"hierarchy\"/> total_doses</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Total doses</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-integer\">integer</a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.country\" 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-q-coding.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"coding\" class=\"hierarchy\"/> country</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Country of vaccination</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..1</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-choice\">choice</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Value Set: <a href=\"http://hl7.org/fhir/R4/valueset-iso3166-1-3.html\">Iso 3166 Part 1: 3 Letter Codes</a></td></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.centre\" 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-q-string.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"string\" class=\"hierarchy\"/> centre</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Administering centre</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..1</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-string\">string</a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.hw\" 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-q-string.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"string\" class=\"hierarchy\"/> hw</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Health worker identifier</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-string\">string</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.disease\" 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-q-coding.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"coding\" class=\"hierarchy\"/> disease</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Disease or agent targeted</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-choice\">choice</a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Value Set: <a href=\"ValueSet-WHODDCCAgentTargetedCOVID19.html\">WHO Agent Targeted (COVID-19)</a></td></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.due_date\" 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-q-date.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"date\" class=\"hierarchy\"/> due_date</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Due date of next dose</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-date\">date</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.pha\" 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-q-string.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"string\" class=\"hierarchy\"/> pha</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Certificate issuer</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..1</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-string\">string</a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.hcid\" 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-q-string.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"string\" class=\"hierarchy\"/> hcid</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Health certificate identifier</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..1</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-string\">string</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" id=\"item.valid_from\" 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-q-date.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"date\" class=\"hierarchy\"/> valid_from</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Certificate valid from</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-date\">date</a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 1px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck00.png)\" id=\"item.valid_until\" 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-q-date.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"date\" class=\"hierarchy\"/> valid_until</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Certificate valid until</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/codesystem-item-type.html#item-type-date\">date</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 1px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr><td colspan=\"5\" class=\"hierarchy\"><br/><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"Legend for this format\"><img src=\"data:image/png;base64,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\" alt=\"doco\" style=\"background-color: inherit\"/> Documentation for this format</a></td></tr></table></div>"
  },
  "extension" : [
    {
      "url" : "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-targetStructureMap",
      "valueCanonical" : "http://smart.who.int/ddcc/StructureMap/QRespToVSCoreDataSet"
    }
  ],
  "url" : "http://smart.who.int/ddcc/DDCCVSCoreDataSetQuestionnaire",
  "version" : "1.0.0",
  "name" : "DDCCVSCoreDataSetQuestionnaire",
  "title" : "DDCC:VS Core Data Set Questionnaire",
  "status" : "draft",
  "experimental" : true,
  "date" : "2021-12-22",
  "publisher" : "WHO",
  "contact" : [
    {
      "name" : "WHO",
      "telecom" : [
        {
          "system" : "url",
          "value" : "http://who.int"
        }
      ]
    }
  ],
  "description" : "DDCC Questionnaire for an Immunization event.",
  "jurisdiction" : [
    {
      "coding" : [
        {
          "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code" : "001"
        }
      ]
    }
  ],
  "item" : [
    {
      "linkId" : "name",
      "text" : "Name",
      "type" : "string",
      "required" : true
    },
    {
      "linkId" : "birthDate",
      "text" : "Date of birth",
      "type" : "date",
      "required" : false
    },
    {
      "linkId" : "identifier",
      "text" : "Unique identifier",
      "type" : "string",
      "required" : false
    },
    {
      "linkId" : "sex",
      "text" : "Sex",
      "type" : "choice",
      "required" : false,
      "answerValueSet" : "http://hl7.org/fhir/ValueSet/administrative-gender"
    },
    {
      "linkId" : "vaccine",
      "text" : "Vaccine or prophylaxis",
      "type" : "choice",
      "required" : true,
      "answerValueSet" : "http://smart.who.int/ddcc/ValueSet/WHODDCCVaccinesCOVID19"
    },
    {
      "linkId" : "brand",
      "text" : "Vaccine brand",
      "type" : "choice",
      "required" : true
    },
    {
      "linkId" : "manufacturer",
      "text" : "Vaccine manufacturer",
      "type" : "choice",
      "required" : false
    },
    {
      "linkId" : "ma_holder",
      "text" : "Vaccine market authorization holder",
      "type" : "choice",
      "required" : false
    },
    {
      "linkId" : "lot",
      "text" : "Vaccine batch number",
      "type" : "string",
      "required" : true
    },
    {
      "linkId" : "date",
      "text" : "Date of vaccine",
      "type" : "date",
      "required" : true
    },
    {
      "linkId" : "vaccine_valid",
      "text" : "Vaccination valid from",
      "type" : "date",
      "required" : false
    },
    {
      "linkId" : "dose",
      "text" : "Dose number",
      "type" : "integer",
      "required" : true
    },
    {
      "linkId" : "total_doses",
      "text" : "Total doses",
      "type" : "integer",
      "required" : false
    },
    {
      "linkId" : "country",
      "text" : "Country of vaccination",
      "type" : "choice",
      "required" : true,
      "answerValueSet" : "http://hl7.org/fhir/ValueSet/iso3166-1-3"
    },
    {
      "linkId" : "centre",
      "text" : "Administering centre",
      "type" : "string",
      "required" : true
    },
    {
      "linkId" : "hw",
      "text" : "Health worker identifier",
      "type" : "string",
      "required" : false
    },
    {
      "linkId" : "disease",
      "text" : "Disease or agent targeted",
      "type" : "choice",
      "required" : false,
      "answerValueSet" : "http://smart.who.int/ddcc/ValueSet/WHODDCCAgentTargetedCOVID19"
    },
    {
      "linkId" : "due_date",
      "text" : "Due date of next dose",
      "type" : "date",
      "required" : false
    },
    {
      "linkId" : "pha",
      "text" : "Certificate issuer",
      "type" : "string",
      "required" : true
    },
    {
      "linkId" : "hcid",
      "text" : "Health certificate identifier",
      "type" : "string",
      "required" : true
    },
    {
      "linkId" : "valid_from",
      "text" : "Certificate valid from",
      "type" : "date",
      "required" : false
    },
    {
      "linkId" : "valid_until",
      "text" : "Certificate valid until",
      "type" : "date",
      "required" : false
    }
  ]
}