{
  "resourceType": "StructureDefinition",
  "url": "http://ontariohealth.ca/fhir/StructureDefinition/ca-on-mha-ext-ServiceRequestReceivedDate",
  "version": "1.0.0",
  "name": "ServiceRequestReceivedDate",
  "status": "active",
  "fhirVersion": "4.0.1",
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "ServiceRequest"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://ontariohealth.ca/fhir/StructureDefinition/ca-on-mha-ext-ServiceRequestReceivedDate"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "date"
          }
        ],
        "constraint": [
          {
            "key": "referralReceivedDate-inv-1",
            "severity": "error",
            "human": "Referral Received Date must be a full date (YYYY-MM-DD)",
            "expression": "$this.toString().matches('^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$')"
          }
        ],
        "mustSupport": true
      }
    ]
  }
}