{
  "description": "The grade associated with the severity of an adverse event, using CTCAE criteria. The code '0' representing no adverse event may be used to provide positive confirmation that the clinician assessed or considered this particular AE, although the absence of an adverse event is generally not reportable. See https://ctep.cancer.gov/protocolDevelopment/electronic_applications/ctc.htm",
  "_filename": "StructureDefinition-codexrt-radiotheraphy-adverse-event-severity-or-grade.json",
  "package_name": "hl7.fhir.us.codex-radiation-therapy",
  "date": "2023-07-28T13:07:08+00:00",
  "derivation": "constraint",
  "publisher": "HL7 Cross Group Projects Work Group",
  "fhirVersion": "4.0.1",
  "jurisdiction": [ {
    "coding": [ {
      "code": "US",
      "system": "urn:iso:std:iso:3166",
      "display": "United States of America"
    } ]
  } ],
  "name": "AdverseEventSeverityOrGrade",
  "mapping": [ {
    "uri": "http://hl7.org/v3",
    "name": "RIM Mapping",
    "identity": "rim"
  } ],
  "abstract": false,
  "type": "Extension",
  "experimental": "true",
  "resourceType": "StructureDefinition",
  "title": "Radiotherapy Adverse Event Grade",
  "package_version": "1.0.0",
  "snapshot": {
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      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension",
      "min": 0,
      "definition": "The grade associated with the severity of an adverse event, using CTCAE criteria. The code '0' representing no adverse event may be used to provide positive confirmation that the clinician assessed or considered this particular AE, although the absence of an adverse event is generally not reportable. See https://ctep.cancer.gov/protocolDevelopment/electronic_applications/ctc.htm",
      "isModifier": false,
      "short": "Radiotherapy Adverse Event Grade",
      "max": "*",
      "id": "Extension",
      "condition": [ "ele-1" ],
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension"
      }
    }, {
      "path": "Extension.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
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        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension.extension",
      "min": 0,
      "definition": "An Extension",
      "isModifier": false,
      "short": "Extension",
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
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      },
      "type": [ {
        "code": "Extension"
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      "max": "0",
      "id": "Extension.extension",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
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      "isSummary": false
    }, {
      "path": "Extension.url",
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      "definition": "Source of the definition for the extension code - a logical name or a URL.",
      "isModifier": false,
      "short": "identifies the meaning of the extension",
      "fixedUri": "http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotheraphy-adverse-event-severity-or-grade",
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        "map": "N/A",
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      "max": "1",
      "id": "Extension.url",
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      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      },
      "isSummary": false
    }, {
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        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Extension.value[x]",
      "min": 0,
      "definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list).",
      "isModifier": false,
      "short": "Value of extension",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
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      "type": [ {
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      "binding": {
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        "valueSet": "http://hl7.org/fhir/us/codex-radiation-therapy/ValueSet/codexrt-radiotheraphy-adverse-event-severity-or-gradeVS"
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      "base": {
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  "url": "http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotheraphy-adverse-event-severity-or-grade",
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    "expression": "AdverseEvent"
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  "version": "1.0.0",
  "differential": {
    "element": [ {
      "id": "Extension",
      "path": "Extension",
      "short": "Radiotherapy Adverse Event Grade",
      "definition": "The grade associated with the severity of an adverse event, using CTCAE criteria. The code '0' representing no adverse event may be used to provide positive confirmation that the clinician assessed or considered this particular AE, although the absence of an adverse event is generally not reportable. See https://ctep.cancer.gov/protocolDevelopment/electronic_applications/ctc.htm"
    }, {
      "id": "Extension.extension",
      "max": "0",
      "path": "Extension.extension"
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      "path": "Extension.url",
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    }, {
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      "path": "Extension.value[x]",
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        "code": "CodeableConcept"
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        "strength": "required",
        "valueSet": "http://hl7.org/fhir/us/codex-radiation-therapy/ValueSet/codexrt-radiotheraphy-adverse-event-severity-or-gradeVS"
      }
    } ]
  },
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    "name": "HL7 Cross Group Projects Work Group",
    "telecom": [ {
      "value": "https://www.hl7.org/Special/committees/cgp",
      "system": "url"
    }, {
      "value": "cgplist@lists.HL7.org",
      "system": "email"
    } ]
  } ],
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}