{
  "resourceType": "StructureDefinition",
  "id": "ncdhc-observation-edb",
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-category",
      "valueString": "Clinical.Diagnostics"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-security-category",
      "valueCode": "patient"
    }
  ],
  "url": "http://build.fhir.org/ig/hl7au/au-fhir-childhealth/StructureDefinition/ncdhc-observation-edb",
  "version": "current",
  "name": "NCDHCObservationEDB",
  "title": "NCDHC Observation Estimated Date of Birth",
  "status": "active",
  "description": "Observation profile to record Estimated Date of Birth and associated details. Date of delivery (birth) is estimated based on a number of clinical factors and the woman’s cycle information",
  "purpose": "The following details associated to the expectant mother in context are recorded:\n   * Estimated date of birth\n   * Estimated date of birth by LNMP, USS and clinical observations\nImplementers conforming to the NCDHC Implementation Guide, must follow the “mustSupport” guidelines as provided in the guidance page",
  "fhirVersion": "4.0.1",
  "mapping": [
    {
      "identity": "workflow",
      "uri": "http://hl7.org/fhir/workflow",
      "name": "Workflow Pattern"
    },
    {
      "identity": "sct-concept",
      "uri": "http://snomed.info/conceptdomain",
      "name": "SNOMED CT Concept Domain Binding"
    },
    {
      "identity": "v2",
      "uri": "http://hl7.org/v2",
      "name": "HL7 v2 Mapping"
    },
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    },
    {
      "identity": "w5",
      "uri": "http://hl7.org/fhir/fivews",
      "name": "FiveWs Pattern Mapping"
    },
    {
      "identity": "sct-attr",
      "uri": "http://snomed.org/attributebinding",
      "name": "SNOMED CT Attribute Binding"
    }
  ],
  "kind": "resource",
  "abstract": false,
  "type": "Observation",
  "baseDefinition": "http://build.fhir.org/ig/hl7au/au-fhir-childhealth/StructureDefinition/ncdhc-observation-clinical-base",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Observation.status",
        "path": "Observation.status",
        "mustSupport": true
      },
      {
        "id": "Observation.code",
        "path": "Observation.code",
        "mustSupport": true
      },
      {
        "id": "Observation.code.coding:ebdSNOMED-CT",
        "path": "Observation.code.coding",
        "sliceName": "ebdSNOMED-CT",
        "min": 1,
        "max": "1",
        "patternCoding": {
          "system": "http://snomed.info/sct",
          "code": "161714006"
        }
      },
      {
        "id": "Observation.subject",
        "path": "Observation.subject",
        "type": [
          {
            "code": "Reference",
            "targetProfile": [
              "http://build.fhir.org/ig/hl7au/au-fhir-childhealth/StructureDefinition/ncdhc-patient-expectant-mother"
            ]
          }
        ],
        "mustSupport": true
      },
      {
        "id": "Observation.effective[x]",
        "path": "Observation.effective[x]",
        "short": "Date and time when EBD was confirmed",
        "type": [
          {
            "code": "dateTime"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "Observation.effective[x].extension",
        "path": "Observation.effective[x].extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "ordered": false,
          "rules": "open"
        }
      },
      {
        "id": "Observation.effective[x].extension:data-absent-reason",
        "path": "Observation.effective[x].extension",
        "sliceName": "data-absent-reason",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
            ]
          }
        ],
        "mustSupport": true
      },
      {
        "id": "Observation.performer:examiner",
        "path": "Observation.performer",
        "sliceName": "examiner",
        "mustSupport": true
      },
      {
        "id": "Observation.performer:legalOrg",
        "path": "Observation.performer",
        "sliceName": "legalOrg",
        "mustSupport": true
      },
      {
        "id": "Observation.value[x]",
        "path": "Observation.value[x]",
        "slicing": {
          "discriminator": [
            {
              "type": "type",
              "path": "$this"
            }
          ],
          "ordered": false,
          "rules": "open"
        },
        "short": "Estimated date of birth",
        "type": [
          {
            "code": "dateTime"
          }
        ]
      },
      {
        "id": "Observation.valueDateTime",
        "path": "Observation.valueDateTime",
        "min": 0,
        "max": "1",
        "mustSupport": true
      },
      {
        "id": "Observation.dataAbsentReason",
        "path": "Observation.dataAbsentReason",
        "mustSupport": true
      },
      {
        "id": "Observation.note",
        "path": "Observation.note",
        "mustSupport": true
      },
      {
        "id": "Observation.derivedFrom",
        "path": "Observation.derivedFrom",
        "type": [
          {
            "code": "Reference",
            "targetProfile": [
              "http://build.fhir.org/ig/hl7au/au-fhir-childhealth/StructureDefinition/ncdhc-observation-estimated-date-birth-last-period",
              "http://build.fhir.org/ig/hl7au/au-fhir-childhealth/StructureDefinition/ncdhc-observation-ultrasound-scan-obstetric",
              "http://build.fhir.org/ig/hl7au/au-fhir-childhealth/StructureDefinition/ncdhc-observation-edb-by-clinical-examination"
            ]
          }
        ],
        "mustSupport": true
      }
    ]
  }
}