General Group Example, Characteristic Based

{
  "resourceType": "Group",
  "id": "101",
  "text": {
    "status": "additional",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n      <p>Herd of 25 horses</p>\n      <p>Gender: mixed</p>\n      <p>Owner: John Smith</p>\n    </div>"

  "resourceType" : "Group",
  "id" : "101",
  "text" : {
    "status" : "additional",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n      <p>Herd of 25 horses</p>\n      <p>Gender: mixed</p>\n      <p>Owner: John Smith</p>\n    </div>"

  },
  "identifier": [
    {
      "system": "http://someveterinarianclinic.org/fhir/NamingSystem/herds",
      "value": "12345"
    }
  ],
  "type": "animal",
  "actual": true,
  "code": {
    "text": "Horse"

  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "fhir"
  }],
  "identifier" : [{
    "system" : "http://someveterinarianclinic.org/fhir/NamingSystem/herds",
    "value" : "12345"
  }],
  "name" : "John's herd",
  "publisher" : "HL7 International / FHIR Infrastructure",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/fiwg"
    }]
  }],
  "type" : "animal",
  "membership" : "enumerated",
  "code" : {
    "coding" : [{
      "system" : "http://example.org/fhir/CodeSystem/group-example-type",
      "code" : "horse",
      "display" : "Horse"
    }],
    "text" : "Horse"

  },
  "name": "John's herd",
  "quantity": 25,
  "characteristic": [
    {
      "code": {
        "text": "gender"
      },
      "valueCodeableConcept": {
        "text": "mixed"
      },
      "exclude": false

  "quantity" : 25,
  "characteristic" : [{
    "code" : {
      "coding" : [{
        "system" : "http://example.org/fhir/CodeSystem/group-example-characteristic",
        "code" : "gender",
        "display" : "Gender"
      }],
      "text" : "gender"

    },
    {
      "code": {
        "text": "owner"
      },
      "valueCodeableConcept": {
        "text": "John Smith"
      },
      "exclude": false
    }
  ]

    "valueCodeableConcept" : {
      "coding" : [{
        "system" : "http://example.org/fhir/CodeSystem/group-example-gender",
        "code" : "mixed",
        "display" : "Mixed"
      }],
      "text" : "mixed"
    },
    "exclude" : false
  },
  {
    "code" : {
      "coding" : [{
        "system" : "http://example.org/fhir/CodeSystem/group-example-characteristic",
        "code" : "owner",
        "display" : "Owner"
      }],
      "text" : "owner"
    },
    "valueCodeableConcept" : {
      "coding" : [{
        "system" : "http://example.org/fhir/CodeSystem/group-example-owner",
        "code" : "john-smith",
        "display" : "John Smith"
      }],
      "text" : "John Smith"
    },
    "exclude" : false
  }]

}