Cross-Version Extension for AllergyIntolerance.verificationStatus in R4

Context of Use

This extension may be used in the following contexts:

• element AllergyIntolerance (For version R3)
• extension http://hl7.org/fhir/3.0/StructureDefinition/extension-AllergyIntolerance
• element AllergyIntolerance (For version R2)
• extension http://hl7.org/fhir/1.0/StructureDefinition/extension-AllergyIntolerance

Name	Flags	Card.	Type	Description & Constraints
Extension	?!	0..1	Extension	unconfirmed | confirmed | refuted | entered-in-error
extension		..0
value[x]		1..	CodeableConcept	Binding: todo (required): Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance.
url				"http://hl7.org/fhir/4.0/StructureDefinition/extension-AllergyIntolerance.verificationStatus"
Documentation for this format

{
  "resourceType" : "StructureDefinition",
  "id" : "xv-r4-ait.verificationStatus",
  "url" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-AllergyIntolerance.verificationStatus",
  "name" : "XVerExtensionAllergyIntolerance.verificationStatusR4",
  "title" : "Cross-Version Extension for AllergyIntolerance.verificationStatus in R4",
  "status" : "active",
  "experimental" : false,
  "publisher" : "Health Level Seven International (Patient Care)",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
    }]
  },
  {
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/patientcare/index.cfm"
    }]
  }],
  "description" : "Cross-Version Extension for AllergyIntolerance.verificationStatus. Valid in versions R2, R3\r\n\r\nThis is a valid extension because it has the types CodeableConcept",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001"
    }]
  }],
  "fhirVersion" : "5.0.0",
  "kind" : "complex-type",
  "abstract" : false,
  "context" : [{
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "3.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "3.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "AllergyIntolerance"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-AllergyIntolerance"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "1.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "1.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "AllergyIntolerance"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/1.0/StructureDefinition/extension-AllergyIntolerance"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "path" : "Extension",
      "short" : "unconfirmed | confirmed | refuted | entered-in-error",
      "definition" : "Assertion about certainty associated with the propensity, or potential risk, of a reaction to the identified substance (including pharmaceutical product).",
      "comment" : "The data type is CodeableConcept because verificationStatus has some clinical judgment involved, such that there might need to be more specificity than the required FHIR value set allows. For example, a SNOMED coding might allow for additional specificity.",
      "min" : 0,
      "max" : "1",
      "isModifier" : true,
      "isModifierReason" : "This element is labeled as a modifier because the status contains the codes refuted and entered-in-error that mark the AllergyIntolerance as not currently valid.",
      "mapping" : [{
        "identity" : "w5",
        "map" : "FiveWs.status"
      },
      {
        "identity" : "rim",
        "map" : "Observation ACT .inboundRelationship[typeCode=COMP].source[classCode=OBS, code=\"verificationStatus\", moodCode=EVN].value"
      }]
    },
    {
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "CodeableConcept"
      }],
      "binding" : {
        "strength" : "required",
        "description" : "Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance.",
        "valueSet" : "http://hl7.org/fhir/ValueSet/allergyintolerance-verification|4.0.1"
      }
    },
    {
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-AllergyIntolerance.verificationStatus"
    }]
  }
}