Example of an Observations made about a location - an oyster farm

{
  "resourceType": "Observation",
  "id": "vp-oyster",
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative with Details</b></p><p><b>id</b>: vp-oyster</p><p><b>identifier</b>: 20171014-1234 (OFFICIAL)</p><p><b>status</b>: preliminary</p><p><b>code</b>: OYSTER TESTING <span>(Details : {LOINC code '41857-4' = 'Vibrio parahaemolyticus DNA [Presence] in Unspecified specimen by Probe and target amplification method', given as 'Vibrio parahaemolyticus DNA [Presence] in Unspecified specimen by Probe and target amplification method'}; {http://sonomacounty.ca.gov/Health/Public-Health/Laboratory/test-codes code 'VP MULTI PCR' = 'VP MULTI PCR', given as 'VP MULTI PCR'})</span></p><p><b>subject</b>: Sonoma oyster farm</p><p><b>effective</b>: 12/10/2017</p><p><b>issued</b>: 14/10/2017 11:11:24 PM</p><p><b>performer</b>: <a>A. Langeveld</a></p><p><b>value</b>: POSITIVE <span>(Details : {SNOMED CT code '10828004' = 'Positive', given as 'Positive (qualifier value)'}; {http://sonomacounty.ca.gov/Health/Public-Health/Laboratory/result-codes code 'POSITIVE' = 'POSITIVE', given as 'POSITIVE'})</span></p><p><b>interpretation</b>: Abnormal <span>(Details : {http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation code 'A' = 'Abnormal', given as 'Abnormal'})</span></p><p><b>specimen</b>: Live Oysters Acc#20171014-1234</p><h3>ReferenceRanges</h3><table><tr><td>-</td><td><b>Text</b></td></tr><tr><td>*</td><td>NEGATIVE</td></tr></table></div>"

  "resourceType" : "Observation",
  "id" : "vp-oyster",
  "contained" : [{
    "resourceType" : "Specimen",
    "id" : "bed1",
    "note" : [{
      "text" : "Live Oysters Acc#20171014-1234 from Bed 1"
    }]

  },
  "identifier": [

  {
    "resourceType" : "Specimen",
    "id" : "bed2",
    "note" : [{
      "text" : "Live Oysters Acc#20171014-1234 from Bed 2"
    }]
  },
  {
    "resourceType" : "Group",
    "id" : "group1",
    "type" : "animal",
    "membership" : "enumerated",
    "member" : [{
      "entity" : {
        "reference" : "#bed1"
      }
    },

    {
      "use": "official",
      "system": "http://sonomacounty.ca.gov/Health/Public-Health/Laboratory",
      "value": "20171014-1234"
    }
  ],
  "status": "preliminary",
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "41857-4",
        "display": "Vibrio parahaemolyticus DNA [Presence] in Unspecified specimen by Probe and target amplification method"
      },
      {
        "system": "http://sonomacounty.ca.gov/Health/Public-Health/Laboratory/test-codes",
        "code": "VP MULTI PCR",
        "display": "VP MULTI PCR"

      "entity" : {
        "reference" : "#bed2"

      }
    ],
    "text": "OYSTER TESTING"

    }]
  }],
  "identifier" : [{
    "use" : "official",
    "system" : "http://sonomacounty.ca.gov/Health/Public-Health/Laboratory",
    "value" : "20171014-1234"
  }],
  "status" : "preliminary",
  "code" : {
    "coding" : [{
      "system" : "http://loinc.org",
      "code" : "41857-4",
      "display" : "Vibrio parahaemolyticus DNA [Presence] in Specimen by NAA with probe detection"
    },
    {
      "system" : "http://sonomacounty.ca.gov/Health/Public-Health/Laboratory/test-codes",
      "code" : "VP MULTI PCR",
      "display" : "VP MULTI PCR"
    }],
    "text" : "OYSTER TESTING"

  },
  "subject": {
    "display": "Sonoma oyster farm"

  "subject" : {
    "display" : "Sonoma oyster farm"

  },
  "effectiveDateTime": "2017-10-12",
  "issued": "2017-10-14T23:11:24Z",
  "performer": [

  "effectiveDateTime" : "2017-10-12",
  "issued" : "2017-10-14T23:11:24Z",
  "performer" : [{
    "reference" : "Practitioner/f005",
    "display" : "A. Langeveld"
  }],
  "valueCodeableConcept" : {
    "coding" : [{
      "system" : "http://snomed.info/sct",
      "code" : "10828004",
      "display" : "Positive (qualifier value)"
    },

    {
      "reference": "Practitioner/f005",
      "display": "A. Langeveld"
    }
  ],
  "valueCodeableConcept": {
    "coding": [
      {
        "system": "http://snomed.info/sct",
        "code": "10828004",
        "display": "Positive (qualifier value)"
      },
      {
        "system": "http://sonomacounty.ca.gov/Health/Public-Health/Laboratory/result-codes",
        "code": "POSITIVE",
        "display": "POSITIVE"
      }
    ],
    "text": "POSITIVE"

      "system" : "http://sonomacounty.ca.gov/Health/Public-Health/Laboratory/result-codes",
      "code" : "POSITIVE",
      "display" : "POSITIVE"
    }],
    "text" : "POSITIVE"

  },
  "interpretation": [
    {
      "coding": [
        {
          "system": "http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation",
          "code": "A",
          "display": "Abnormal"
        }
      ]
    }
  ],
  "specimen": {
    "display": "Live Oysters Acc#20171014-1234"

  "interpretation" : [{
    "coding" : [{
      "system" : "http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation",
      "code" : "A",
      "display" : "Abnormal"
    }]
  }],
  "specimen" : {
    "reference" : "#group1"

  },
  "referenceRange": [
    {
      "text": "NEGATIVE"
    }
  ]

  "referenceRange" : [{
    "text" : "NEGATIVE"
  }]

}