{
  "resourceType" : "Observation",
  "id" : "12345",
  "meta" : {
    "profile" : ["http://fhir.geniesolutions.io/StructureDefinition/gs-lastmenstrualperiod"]
  },
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\">LMP: 2022-05-16</div>"
  },
  "status" : "final",
  "category" : [{
    "coding" : [{
      "system" : "http://terminology.hl7.org/CodeSystem/observation-category",
      "code" : "social-history",
      "display" : "Social History"
    }]
  }],
  "code" : {
    "coding" : [{
      "system" : "http://snomed.info/sct",
      "code" : "21840007",
      "display" : "Date of last menstrual period"
    },
    {
      "system" : "http://loinc.org",
      "code" : "8665-2",
      "display" : "Last menstrual period start date"
    }]
  },
  "subject" : {
    "reference" : "Patient/1078d551-7be2-49f7-a122-c230b8757f2f",
    "display" : "Mary Smith"
  },
  "effectiveDateTime" : "2022-09-09T09:25:03+10:00",
  "performer" : [{
    "type" : "PractitionerRole",
    "identifier" : {
      "type" : {
        "coding" : [{
          "system" : "http://terminology.hl7.org.au/CodeSystem/v2-0203",
          "code" : "UPIN"
        }],
        "text" : "Medicare Provider Number"
      },
      "system" : "http://ns.electronichealth.net.au/id/medicare-provider-number",
      "value" : "1063625F"
    },
    "display" : "Dr Jane Doe"
  }],
  "valueDateTime" : "2022-05-16"
}