{
  "resourceType": "StructureDefinition",
  "id": "72777144-4a07-443c-82d2-1aeb296e858b",
  "meta": {
    "lastUpdated": "2020-02-21T07:53:53.889+00:00"
  },
  "url": "http://example.org/fhir/StructureDefinition/CTExtension",
  "name": "CTExtension",
  "status": "draft",
  "date": "2020-02-21T07:54:32.5823845+00:00",
  "fhirVersion": "4.0.0",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "Observation"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Extension.extension:HIR_index",
        "path": "Extension.extension",
        "sliceName": "HIR_index",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension:HIR_index.url",
        "path": "Extension.extension.url",
        "fixedUri": "HIR_index"
      },
      {
        "id": "Extension.extension:HIR_index.value[x]",
        "path": "Extension.extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "decimal"
          }
        ],
        "minValueDecimal": 0,
        "maxValueDecimal": 1.0
      },
      {
        "id": "Extension.extension:CBV_index",
        "path": "Extension.extension",
        "sliceName": "CBV_index",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension:CBV_index.url",
        "path": "Extension.extension.url",
        "fixedUri": "CBV_index"
      },
      {
        "id": "Extension.extension:CBV_index.value[x]",
        "path": "Extension.extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "decimal"
          }
        ],
        "minValueDecimal": 0,
        "maxValueDecimal": 1
      },
      {
        "id": "Extension.extension:Tmax_more_6_sec_volume",
        "path": "Extension.extension",
        "sliceName": "Tmax_more_6_sec_volume",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension:Tmax_more_6_sec_volume.url",
        "path": "Extension.extension.url",
        "fixedUri": "Tmax_more_6_sec_volume"
      },
      {
        "id": "Extension.extension:Tmax_more_6_sec_volume.value[x]",
        "path": "Extension.extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "Quantity",
            "profile": [
              "http://hl7.org/fhir/StructureDefinition/SimpleQuantity"
            ]
          }
        ]
      },
      {
        "id": "Extension.extension:Tmax_more_6_sec_volume.value[x].unit",
        "path": "Extension.extension.value[x].unit",
        "fixedString": "ml"
      },
      {
        "id": "Extension.extension:Tmax_more_6_sec_volume.value[x].system",
        "path": "Extension.extension.value[x].system",
        "fixedUri": "http://unitsofmeasure.org"
      },
      {
        "id": "Extension.extension:Tmax_more_6_sec_volume.value[x].code",
        "path": "Extension.extension.value[x].code",
        "fixedCode": "ml"
      },
      {
        "id": "Extension.extension:CBF_less_30_percent_volume",
        "path": "Extension.extension",
        "sliceName": "CBF_less_30_percent_volume",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension:CBF_less_30_percent_volume.url",
        "path": "Extension.extension.url",
        "fixedUri": "CBF_less_30_percent_volume"
      },
      {
        "id": "Extension.extension:CBF_less_30_percent_volume.value[x]",
        "path": "Extension.extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "Quantity",
            "profile": [
              "http://hl7.org/fhir/StructureDefinition/SimpleQuantity"
            ]
          }
        ]
      },
      {
        "id": "Extension.extension:CBF_less_30_percent_volume.value[x].unit",
        "path": "Extension.extension.value[x].unit",
        "fixedString": "ml"
      },
      {
        "id": "Extension.extension:CBF_less_30_percent_volume.value[x].system",
        "path": "Extension.extension.value[x].system",
        "fixedUri": "http://unitsofmeasure.org"
      },
      {
        "id": "Extension.extension:CBF_less_30_percent_volume.value[x].code",
        "path": "Extension.extension.value[x].code",
        "fixedCode": "ml"
      },
      {
        "id": "Extension.extension:Mismatch_volume",
        "path": "Extension.extension",
        "sliceName": "Mismatch_volume",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension:Mismatch_volume.url",
        "path": "Extension.extension.url",
        "fixedUri": "Mismatch_volume"
      },
      {
        "id": "Extension.extension:Mismatch_volume.value[x]",
        "path": "Extension.extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "Quantity",
            "profile": [
              "http://hl7.org/fhir/StructureDefinition/SimpleQuantity"
            ]
          }
        ]
      },
      {
        "id": "Extension.extension:Mismatch_volume.value[x].unit",
        "path": "Extension.extension.value[x].unit",
        "fixedString": "ml"
      },
      {
        "id": "Extension.extension:Mismatch_volume.value[x].system",
        "path": "Extension.extension.value[x].system",
        "fixedUri": "http://unitsofmeasure.org"
      },
      {
        "id": "Extension.extension:Mismatch_volume.value[x].code",
        "path": "Extension.extension.value[x].code",
        "fixedCode": "ml"
      },
      {
        "id": "Extension.extension:Mismatch_ratio",
        "path": "Extension.extension",
        "sliceName": "Mismatch_ratio",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension:Mismatch_ratio.url",
        "path": "Extension.extension.url",
        "fixedUri": "Mismatch_ratio"
      },
      {
        "id": "Extension.extension:Mismatch_ratio.value[x]",
        "path": "Extension.extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "decimal"
          }
        ],
        "minValueDecimal": 1
      },
      {
        "id": "Extension.extension:TAC",
        "path": "Extension.extension",
        "sliceName": "TAC",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension:TAC.extension",
        "path": "Extension.extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Extension.extension:TAC.extension:Aif",
        "path": "Extension.extension.extension",
        "sliceName": "Aif",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension:TAC.extension:Aif.extension",
        "path": "Extension.extension.extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Extension.extension:TAC.extension:Aif.extension:Ttp",
        "path": "Extension.extension.extension.extension",
        "sliceName": "Ttp"
      },
      {
        "id": "Extension.extension:TAC.extension:Aif.extension:Ttp.url",
        "path": "Extension.extension.extension.extension.url",
        "fixedUri": "Ttp"
      },
      {
        "id": "Extension.extension:TAC.extension:Aif.extension:Ttp.value[x]",
        "path": "Extension.extension.extension.extension.value[x]",
        "type": [
          {
            "code": "Quantity"
          }
        ]
      },
      {
        "id": "Extension.extension:TAC.extension:Aif.extension:Ttp.value[x].unit",
        "path": "Extension.extension.extension.extension.value[x].unit",
        "fixedString": "sec"
      },
      {
        "id": "Extension.extension:TAC.extension:Aif.extension:Max_attenuation",
        "path": "Extension.extension.extension.extension",
        "sliceName": "Max_attenuation"
      },
      {
        "id": "Extension.extension:TAC.extension:Aif.extension:Max_attenuation.url",
        "path": "Extension.extension.extension.extension.url",
        "fixedUri": "Max_attenuation"
      },
      {
        "id": "Extension.extension:TAC.extension:Aif.extension:Max_attenuation.value[x]",
        "path": "Extension.extension.extension.extension.value[x]",
        "type": [
          {
            "code": "Quantity"
          }
        ]
      },
      {
        "id": "Extension.extension:TAC.extension:Aif.extension:Max_attenuation.value[x].unit",
        "path": "Extension.extension.extension.extension.value[x].unit",
        "fixedString": "HU"
      },
      {
        "id": "Extension.extension:TAC.extension:Aif.url",
        "path": "Extension.extension.extension.url",
        "fixedUri": "Aif"
      },
      {
        "id": "Extension.extension:TAC.extension:Aif.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "max": "0",
        "type": [
          {
            "code": "base64Binary"
          },
          {
            "code": "boolean"
          },
          {
            "code": "canonical"
          },
          {
            "code": "code"
          },
          {
            "code": "date"
          },
          {
            "code": "dateTime"
          },
          {
            "code": "decimal"
          },
          {
            "code": "id"
          },
          {
            "code": "instant"
          },
          {
            "code": "integer"
          },
          {
            "code": "markdown"
          },
          {
            "code": "oid"
          },
          {
            "code": "positiveInt"
          },
          {
            "code": "string"
          },
          {
            "code": "time"
          },
          {
            "code": "unsignedInt"
          },
          {
            "code": "uri"
          },
          {
            "code": "url"
          },
          {
            "code": "uuid"
          },
          {
            "code": "Address"
          },
          {
            "code": "Age"
          },
          {
            "code": "Annotation"
          },
          {
            "code": "Attachment"
          },
          {
            "code": "CodeableConcept"
          },
          {
            "code": "Coding"
          },
          {
            "code": "ContactPoint"
          },
          {
            "code": "Count"
          },
          {
            "code": "Distance"
          },
          {
            "code": "Duration"
          },
          {
            "code": "HumanName"
          },
          {
            "code": "Identifier"
          },
          {
            "code": "Money"
          },
          {
            "code": "Period"
          },
          {
            "code": "Quantity",
            "profile": [
              "http://hl7.org/fhir/StructureDefinition/SimpleQuantity"
            ]
          },
          {
            "code": "Range"
          },
          {
            "code": "Ratio"
          },
          {
            "code": "Reference"
          },
          {
            "code": "SampledData"
          },
          {
            "code": "Signature"
          },
          {
            "code": "Timing"
          },
          {
            "code": "ContactDetail"
          },
          {
            "code": "Contributor"
          },
          {
            "code": "DataRequirement"
          },
          {
            "code": "Expression"
          },
          {
            "code": "ParameterDefinition"
          },
          {
            "code": "RelatedArtifact"
          },
          {
            "code": "TriggerDefinition"
          },
          {
            "code": "UsageContext"
          },
          {
            "code": "Dosage"
          }
        ]
      },
      {
        "id": "Extension.extension:TAC.extension:Vof",
        "path": "Extension.extension.extension",
        "sliceName": "Vof",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension:TAC.extension:Vof.extension",
        "path": "Extension.extension.extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Extension.extension:TAC.extension:Vof.extension:Ttp",
        "path": "Extension.extension.extension.extension",
        "sliceName": "Ttp"
      },
      {
        "id": "Extension.extension:TAC.extension:Vof.extension:Ttp.url",
        "path": "Extension.extension.extension.extension.url",
        "fixedUri": "Ttp"
      },
      {
        "id": "Extension.extension:TAC.extension:Vof.extension:Ttp.value[x]",
        "path": "Extension.extension.extension.extension.value[x]",
        "type": [
          {
            "code": "Quantity"
          }
        ]
      },
      {
        "id": "Extension.extension:TAC.extension:Vof.extension:Ttp.value[x].unit",
        "path": "Extension.extension.extension.extension.value[x].unit",
        "fixedString": "sec"
      },
      {
        "id": "Extension.extension:TAC.extension:Vof.extension:Max_attenuation",
        "path": "Extension.extension.extension.extension",
        "sliceName": "Max_attenuation"
      },
      {
        "id": "Extension.extension:TAC.extension:Vof.extension:Max_attenuation.url",
        "path": "Extension.extension.extension.extension.url",
        "fixedUri": "Max_attenuation"
      },
      {
        "id": "Extension.extension:TAC.extension:Vof.extension:Max_attenuation.value[x]",
        "path": "Extension.extension.extension.extension.value[x]",
        "type": [
          {
            "code": "Quantity"
          }
        ]
      },
      {
        "id": "Extension.extension:TAC.extension:Vof.extension:Max_attenuation.value[x].unit",
        "path": "Extension.extension.extension.extension.value[x].unit",
        "fixedString": "HU"
      },
      {
        "id": "Extension.extension:TAC.extension:Vof.url",
        "path": "Extension.extension.extension.url",
        "fixedUri": "Vof"
      },
      {
        "id": "Extension.extension:TAC.extension:Vof.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "max": "0",
        "type": [
          {
            "code": "base64Binary"
          },
          {
            "code": "boolean"
          },
          {
            "code": "canonical"
          },
          {
            "code": "code"
          },
          {
            "code": "date"
          },
          {
            "code": "dateTime"
          },
          {
            "code": "decimal"
          },
          {
            "code": "id"
          },
          {
            "code": "instant"
          },
          {
            "code": "integer"
          },
          {
            "code": "markdown"
          },
          {
            "code": "oid"
          },
          {
            "code": "positiveInt"
          },
          {
            "code": "string"
          },
          {
            "code": "time"
          },
          {
            "code": "unsignedInt"
          },
          {
            "code": "uri"
          },
          {
            "code": "url"
          },
          {
            "code": "uuid"
          },
          {
            "code": "Address"
          },
          {
            "code": "Age"
          },
          {
            "code": "Annotation"
          },
          {
            "code": "Attachment"
          },
          {
            "code": "CodeableConcept"
          },
          {
            "code": "Coding"
          },
          {
            "code": "ContactPoint"
          },
          {
            "code": "Count"
          },
          {
            "code": "Distance"
          },
          {
            "code": "Duration"
          },
          {
            "code": "HumanName"
          },
          {
            "code": "Identifier"
          },
          {
            "code": "Money"
          },
          {
            "code": "Period"
          },
          {
            "code": "Quantity",
            "profile": [
              "http://hl7.org/fhir/StructureDefinition/SimpleQuantity"
            ]
          },
          {
            "code": "Range"
          },
          {
            "code": "Ratio"
          },
          {
            "code": "Reference"
          },
          {
            "code": "SampledData"
          },
          {
            "code": "Signature"
          },
          {
            "code": "Timing"
          },
          {
            "code": "ContactDetail"
          },
          {
            "code": "Contributor"
          },
          {
            "code": "DataRequirement"
          },
          {
            "code": "Expression"
          },
          {
            "code": "ParameterDefinition"
          },
          {
            "code": "RelatedArtifact"
          },
          {
            "code": "TriggerDefinition"
          },
          {
            "code": "UsageContext"
          },
          {
            "code": "Dosage"
          }
        ]
      },
      {
        "id": "Extension.extension:TAC.extension:Tissue",
        "path": "Extension.extension.extension",
        "sliceName": "Tissue",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension:TAC.extension:Tissue.extension",
        "path": "Extension.extension.extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Extension.extension:TAC.extension:Tissue.extension:Ttp",
        "path": "Extension.extension.extension.extension",
        "sliceName": "Ttp"
      },
      {
        "id": "Extension.extension:TAC.extension:Tissue.extension:Ttp.url",
        "path": "Extension.extension.extension.extension.url",
        "fixedUri": "Ttp"
      },
      {
        "id": "Extension.extension:TAC.extension:Tissue.extension:Ttp.value[x]",
        "path": "Extension.extension.extension.extension.value[x]",
        "type": [
          {
            "code": "Quantity"
          }
        ]
      },
      {
        "id": "Extension.extension:TAC.extension:Tissue.extension:Ttp.value[x].unit",
        "path": "Extension.extension.extension.extension.value[x].unit",
        "fixedString": "sec"
      },
      {
        "id": "Extension.extension:TAC.extension:Tissue.extension:Max_attenuation",
        "path": "Extension.extension.extension.extension",
        "sliceName": "Max_attenuation"
      },
      {
        "id": "Extension.extension:TAC.extension:Tissue.extension:Max_attenuation.url",
        "path": "Extension.extension.extension.extension.url",
        "fixedUri": "Max_attenuation"
      },
      {
        "id": "Extension.extension:TAC.extension:Tissue.extension:Max_attenuation.value[x]",
        "path": "Extension.extension.extension.extension.value[x]",
        "type": [
          {
            "code": "Quantity"
          }
        ]
      },
      {
        "id": "Extension.extension:TAC.extension:Tissue.extension:Max_attenuation.value[x].unit",
        "path": "Extension.extension.extension.extension.value[x].unit",
        "fixedString": "HU"
      },
      {
        "id": "Extension.extension:TAC.extension:Tissue.url",
        "path": "Extension.extension.extension.url",
        "fixedUri": "Tissue"
      },
      {
        "id": "Extension.extension:TAC.extension:Tissue.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "max": "0"
      },
      {
        "id": "Extension.extension:TAC.url",
        "path": "Extension.extension.url",
        "fixedUri": "TAC"
      },
      {
        "id": "Extension.extension:TAC.value[x]",
        "path": "Extension.extension.value[x]",
        "max": "0"
      },
      {
        "id": "Extension.extension:ASPECT",
        "path": "Extension.extension",
        "sliceName": "ASPECT",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension:ASPECT.url",
        "path": "Extension.extension.url",
        "fixedUri": "ASPECT"
      },
      {
        "id": "Extension.extension:ASPECT.value[x]",
        "path": "Extension.extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "integer"
          }
        ],
        "minValueInteger": 0,
        "maxValueInteger": 10
      },
      {
        "id": "Extension.extension:Eval_date",
        "path": "Extension.extension",
        "sliceName": "Eval_date",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension:Eval_date.url",
        "path": "Extension.extension.url",
        "fixedUri": "Eval_date"
      },
      {
        "id": "Extension.extension:Eval_date.value[x]",
        "path": "Extension.extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "dateTime"
          }
        ]
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://example.org/fhir/StructureDefinition/CTExtension"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "max": "0"
      }
    ]
  }
}