{
  "resourceType": "CodeSystem",
  "id": "group-membership-basis",
  "meta": {
    "lastUpdated": "2026-05-18T23:49:36.371+11:00"
  },
  "text": {
    "status": "generated",
    "div": "\u003cdiv xmlns\u003d\"http://www.w3.org/1999/xhtml\"\u003e\u003cp class\u003d\"res-header-id\"\u003e\u003cb\u003eGenerated Narrative: CodeSystem group-membership-basis\u003c/b\u003e\u003c/p\u003e\u003ca name\u003d\"group-membership-basis\"\u003e \u003c/a\u003e\u003ca name\u003d\"hcgroup-membership-basis\"\u003e \u003c/a\u003e\u003cdiv style\u003d\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"\u003e\u003cp style\u003d\"margin-bottom: 0px\"\u003eLast updated: 2021-01-05T10:01:24.148+11:00\u003c/p\u003e\u003c/div\u003e\u003cp\u003eThis case-sensitive code system \u003ccode\u003ehttp://hl7.org/fhir/group-membership-basis\u003c/code\u003e defines the following codes:\u003c/p\u003e\u003ctable class\u003d\"codes\"\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003e\u003cb\u003eCode\u003c/b\u003e\u003c/td\u003e\u003ctd\u003e\u003cb\u003eDisplay\u003c/b\u003e\u003c/td\u003e\u003ctd\u003e\u003cb\u003eDefinition\u003c/b\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003edefinitional\u003ca name\u003d\"group-membership-basis-definitional\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eDefinitional\u003c/td\u003e\u003ctd\u003eThe 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.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003econceptual\u003ca name\u003d\"group-membership-basis-conceptual\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eConceptual\u003c/td\u003e\u003ctd\u003eThe Group.characteristics specified are both necessary and sufficient to determine membership. The \u0027conceptual\u0027 Group is a \u0027definitional\u0027 Group in which the Group.type is not bound to FHIR types.\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style\u003d\"white-space:nowrap\"\u003eenumerated\u003ca name\u003d\"group-membership-basis-enumerated\"\u003e \u003c/a\u003e\u003c/td\u003e\u003ctd\u003eEnumerated\u003c/td\u003e\u003ctd\u003eThe Group.characteristics are necessary but not sufficient to determine membership. Membership is determined by being listed as one of the Group.member.\u003c/td\u003e\u003c/tr\u003e\u003c/table\u003e\u003c/div\u003e"
  },
  "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 \u0027conceptual\u0027 Group is a \u0027definitional\u0027 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."
    }
  ]
}