This is the Continuous Integration Build of FHIR (will be incorrect/inconsistent at times). 
See the Directory of published versions
Example of an invalid dose
{
  "resourceType" : "ImmunizationEvaluation",
  "id" : "notValid",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:1.3.6.1.4.1.21367.2005.3.7.1234"
  }],
  "status" : "completed",
  "patient" : {
    "reference" : "Patient/example"
  },
  "date" : "2013-01-10",
  "authority" : {
    "reference" : "Organization/hl7"
  },
  "targetDisease" : {
    "coding" : [{
      "system" : "http://snomed.info/sct",
      "code" : "1857005"
    }]
  },
  "immunizationEvent" : {
    "reference" : "Immunization/example"
  },
  "doseStatus" : {
    "coding" : [{
      "system" : "http://terminology.hl7.org/CodeSystem/immunization-evaluation-dose-status",
      "code" : "notvalid",
      "display" : "Not Valid"
    }]
  },
  "doseStatusReason" : [{
    "coding" : [{
      "system" : "http://terminology.hl7.org/CodeSystem/immunization-evaluation-dose-status-reason",
      "code" : "outsideschedule",
      "display" : "Outside Schedule"
    }]
  }],
  "series" : "Vaccination Series 1"
}
 
Usage note: every effort has been made to ensure that the
examples are correct and useful, but they are not a normative part 
of the specification.