{
  "resourceType" : "CodeSystem",
  "id" : "group-membership-basis",
  "meta" : {
    "lastUpdated" : "2026-03-30T08:54:20.327+11:00"
  },
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem group-membership-basis</b></p><a name=\"group-membership-basis\"> </a><a name=\"hcgroup-membership-basis\"> </a><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Last updated: 2021-01-05T10:01:24.148+11:00</p></div><p>This case-sensitive code system <code>http://hl7.org/fhir/group-membership-basis</code> defines the following codes:</p><table class=\"codes\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style=\"white-space:nowrap\">definitional<a name=\"group-membership-basis-definitional\"> </a></td><td>Definitional</td><td>The Group.characteristics specified are both necessary and sufficient to determine membership. All entities that meet the criteria are considered to be members of the group, whether referenced by the group or not. If members are present, they are individuals that happen to be known as meeting the Group.characteristics. The list cannot be presumed to be complete.</td></tr><tr><td style=\"white-space:nowrap\">conceptual<a name=\"group-membership-basis-conceptual\"> </a></td><td>Conceptual</td><td>The Group.characteristics specified are both necessary and sufficient to determine membership. The 'conceptual' Group is a 'definitional' Group in which the Group.type is not bound to FHIR types.</td></tr><tr><td style=\"white-space:nowrap\">enumerated<a name=\"group-membership-basis-enumerated\"> </a></td><td>Enumerated</td><td>The Group.characteristics are necessary but not sufficient to determine membership. Membership is determined by being listed as one of the Group.member.</td></tr></table></div>"
  },
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "fhir"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger" : 3
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode" : "normative"
  }],
  "url" : "http://hl7.org/fhir/group-membership-basis",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.4.642.4.1962"
  }],
  "version" : "6.0.0-ballot4",
  "name" : "GroupMembershipBasis",
  "title" : "Group Membership Basis",
  "status" : "active",
  "experimental" : false,
  "date" : "2022-08-09T10:01:24+11:00",
  "publisher" : "HL7 (FHIR Project)",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
    },
    {
      "system" : "email",
      "value" : "fhir@lists.hl7.org"
    }]
  }],
  "description" : "Basis for membership in a group",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001",
      "display" : "World"
    }]
  }],
  "caseSensitive" : true,
  "valueSet" : "http://hl7.org/fhir/ValueSet/group-membership-basis",
  "content" : "complete",
  "concept" : [{
    "code" : "definitional",
    "display" : "Definitional",
    "definition" : "The Group.characteristics specified are both necessary and sufficient to determine membership. All entities that meet the criteria are considered to be members of the group, whether referenced by the group or not. If members are present, they are individuals that happen to be known as meeting the Group.characteristics. The list cannot be presumed to be complete."
  },
  {
    "code" : "conceptual",
    "display" : "Conceptual",
    "definition" : "The Group.characteristics specified are both necessary and sufficient to determine membership. The 'conceptual' Group is a 'definitional' Group in which the Group.type is not bound to FHIR types."
  },
  {
    "code" : "enumerated",
    "display" : "Enumerated",
    "definition" : "The Group.characteristics are necessary but not sufficient to determine membership. Membership is determined by being listed as one of the Group.member."
  }]
}