Alive and not functionally dependent 90 days

{
  "resourceType" : "EvidenceVariable",
  "id" : "example-alive-independent-90day",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n      \n      <p>\n        &quot;Alive and not functionally dependent at 90 days&quot; is an outcome used in expressing what an Evidence is about.\n      </p>\n\t\n    </div>"
  },
  "contained" : [{
    "resourceType" : "Group",
    "id" : "Definition-Group",
    "title" : "VariableDefinition: Alive and not functionally dependent at 90 days",
    "type" : "person",
    "membership" : "definitional",
    "combinationMethod" : "all-of",
    "characteristic" : [{
      "code" : {
        "coding" : [{
          "system" : "http://snomed.info/sct",
          "code" : "260905004",
          "display" : "Condition"
        }]
      },
      "valueCodeableConcept" : {
        "coding" : [{
          "system" : "http://snomed.info/sct",
          "code" : "419099009",
          "display" : "Dead (finding)"
        }]
      },
      "exclude" : true,
      "description" : "alive at 90 days (excluding dead at 90 days)",
      "timing" : [{
        "contextCode" : {
          "coding" : [{
            "system" : "http://hl7.org/fhir/evidence-variable-event",
            "code" : "study-start",
            "display" : "Study Start"
          }]
        },
        "offsetDuration" : {
          "value" : 90,
          "unit" : "days",
          "system" : "http://unitsofmeasure.org",
          "code" : "d"
        }
      }]
    },
    {
      "code" : {
        "coding" : [{
          "system" : "http://snomed.info/sct",
          "code" : "260905004",
          "display" : "Condition"
        }]
      },
      "valueCodeableConcept" : {
        "coding" : [{
          "system" : "http://snomed.info/sct",
          "code" : "718705001",
          "display" : "Functionally dependent (finding)"
        }]
      },
      "exclude" : true,
      "description" : "not functionally dependent at 90 days (excluding functionally dependent at 90 days)",
      "timing" : [{
        "contextCode" : {
          "coding" : [{
            "system" : "http://hl7.org/fhir/evidence-variable-event",
            "code" : "study-start",
            "display" : "Study Start"
          }]
        },
        "offsetDuration" : {
          "value" : 90,
          "unit" : "days",
          "system" : "http://unitsofmeasure.org",
          "code" : "d"
        }
      }]
    }]
  }],
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "cds"
  }],
  "name" : "AliveAndNotFunctionallyDependentAt90Days",
  "title" : "Alive and not functionally dependent at 90 days",
  "status" : "draft",
  "publisher" : "HL7 International / Clinical Decision Support",
  "contact" : [{
    "telecom" : [{
      "system" : "url"
    }]
  }],
  "description" : "Alive and not functionally dependent at 90 days",
  "actual" : false,
  "definition" : {
    "reference" : {
      "reference" : "#Definition-Group"
    }
  },
  "handling" : "dichotomous"
}