HL7 Version 2 to FHIR
1.0.0 - STU 1

HL7 Version 2 to FHIR - Downloaded Version 1.0.0 See the Directory of published versions

## : Segment AL1 to AllergyIntolerance Map - JSON Representation

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    {
      "resourceType" : "ConceptMap",
      "id" : "segment-al1-to-allergyintolerance",
      "text" : {
        "status" : "generated",
        "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: ConceptMap segment-al1-to-allergyintolerance</b></p><a name=\"segment-al1-to-allergyintolerance\"> </a><a name=\"hcsegment-al1-to-allergyintolerance\"> </a><p>Mapping from (not specified) to (not specified)</p><br/><p><b>Group 1 </b>Mapping from <code>unspecified code system</code> to <code>unspecified code system</code></p><table class=\"grid\"><tr><td colspan=\"3\"><b>Source Concept Details</b></td><td><b>Relationship</b></td><td colspan=\"2\"><b>Target Concept Details</b></td><td><b>Comment</b></td></tr><tr><td colspan=\"2\"><b>Codes</b> from </td><td><b>NarrativeCondition</b></td><td/><td colspan=\"2\"><b>Codes</b> from </td><td/></tr><tr><td style=\"border-right-width: 0px\">AL1</td><td style=\"border-left-width: 0px\"/><td/><td><a href=\"http://hl7.org/fhir/R5/codesystem-concept-map-relationship.html#equivalent\" title=\"equivalent\">is equivalent to</a></td><td style=\"border-right-width: 0px\">clinicalStatus.coding.code</td><td style=\"border-left-width: 0px\">clinicalStatus.coding.code</td><td>While .clinicalStatus is not required, constraint ait-1 (AllergyIntolerance.clinicalStatus SHALL be present if verificationStatus is not entered-in-error.) does necessitate populating this element in the map as it's not possible to infer a verificationStatus of &quot;entered-in-error&quot; based on the data in AL1.</td></tr><tr><td style=\"border-right-width: 0px\">AL1</td><td style=\"border-left-width: 0px\"/><td/><td><a href=\"http://hl7.org/fhir/R5/codesystem-concept-map-relationship.html#equivalent\" title=\"equivalent\">is equivalent to</a></td><td style=\"border-right-width: 0px\">clinicalStatus.coding.system</td><td style=\"border-left-width: 0px\">clinicalStatus.coding.system</td><td/></tr><tr><td style=\"border-right-width: 0px\">AL1-2</td><td style=\"border-left-width: 0px\">Allergen Type Code</td><td/><td><a href=\"http://hl7.org/fhir/R5/codesystem-concept-map-relationship.html#equivalent\" title=\"equivalent\">is equivalent to</a></td><td style=\"border-right-width: 0px\">category</td><td style=\"border-left-width: 0px\">category</td><td>The FHIR table has a &quot;required&quot; binding. Do we need to expand the values in the FHIR table?\n\nCould other be used for:\nMiscellaneous allergy\nMiscellaneous contraindication\nAnimal Allergy\n\nHL70127 is a user defined table\\</td></tr><tr><td style=\"border-right-width: 0px\">AL1-2</td><td style=\"border-left-width: 0px\">Allergen Type Code</td><td/><td><a href=\"http://hl7.org/fhir/R5/codesystem-concept-map-relationship.html#equivalent\" title=\"equivalent\">is equivalent to</a></td><td style=\"border-right-width: 0px\">category.extension[1].url</td><td style=\"border-left-width: 0px\">category.extension[1].url</td><td/></tr><tr><td style=\"border-right-width: 0px\">AL1-2</td><td style=\"border-left-width: 0px\">Allergen Type Code</td><td/><td><a href=\"http://hl7.org/fhir/R5/codesystem-concept-map-relationship.html#equivalent\" title=\"equivalent\">is equivalent to</a></td><td style=\"border-right-width: 0px\">category.extension[1].valueCodeableConcept</td><td style=\"border-left-width: 0px\">category.extension[1].valueCodeableConcept</td><td/></tr><tr><td style=\"border-right-width: 0px\">AL1-2</td><td style=\"border-left-width: 0px\">Allergen Type Code</td><td/><td><a href=\"http://hl7.org/fhir/R5/codesystem-concept-map-relationship.html#equivalent\" title=\"equivalent\">is equivalent to</a></td><td style=\"border-right-width: 0px\">type</td><td style=\"border-left-width: 0px\">type</td><td/></tr><tr><td style=\"border-right-width: 0px\">AL1-3</td><td style=\"border-left-width: 0px\">Allergen Code/Mnemonic/Description</td><td/><td><a href=\"http://hl7.org/fhir/R5/codesystem-concept-map-relationship.html#equivalent\" title=\"equivalent\">is equivalent to</a></td><td style=\"border-right-width: 0px\">code</td><td style=\"border-left-width: 0px\">code</td><td/></tr><tr><td style=\"border-right-width: 0px\">AL1-4</td><td style=\"border-left-width: 0px\">Allergy Severity Code</td><td>If severity was used equivalent to criticality</td><td><a href=\"http://hl7.org/fhir/R5/codesystem-concept-map-relationship.html#equivalent\" title=\"equivalent\">is equivalent to</a></td><td style=\"border-right-width: 0px\">criticality</td><td style=\"border-left-width: 0px\">criticality</td><td>Note that AllergyIntolerance.reaction.severity is available in FHIR but from a base standard perspective that is actually not the most appropriate and would require that AL1-6 is valued as well.  However, a local implementation may have used vocabulary that better fits AllergyIntolerance.reaction.severity and should then consider that instead as a local variation.  Note that the .reaction though is at a particular time, while .criticality is an overall assement that matches HL7 v2 generally better.</td></tr><tr><td style=\"border-right-width: 0px\">AL1-4</td><td style=\"border-left-width: 0px\">Allergy Severity Code</td><td>If severity was used equivalent to criticality</td><td><a href=\"http://hl7.org/fhir/R5/codesystem-concept-map-relationship.html#equivalent\" title=\"equivalent\">is equivalent to</a></td><td style=\"border-right-width: 0px\">criticality.extension[1].url</td><td style=\"border-left-width: 0px\">criticality.extension[1].url</td><td/></tr><tr><td style=\"border-right-width: 0px\">AL1-4</td><td style=\"border-left-width: 0px\">Allergy Severity Code</td><td>If severity was used equivalent to criticality</td><td><a href=\"http://hl7.org/fhir/R5/codesystem-concept-map-relationship.html#equivalent\" title=\"equivalent\">is equivalent to</a></td><td style=\"border-right-width: 0px\">criticality.extension[1].valueCodeableConcept</td><td style=\"border-left-width: 0px\">criticality.extension[1].valueCodeableConcept</td><td/></tr><tr><td style=\"border-right-width: 0px\">AL1-4</td><td style=\"border-left-width: 0px\">Allergy Severity Code</td><td>If severity was not used equivalent to criticality</td><td><a href=\"http://hl7.org/fhir/R5/codesystem-concept-map-relationship.html#equivalent\" title=\"equivalent\">is equivalent to</a></td><td style=\"border-right-width: 0px\">reaction.severity</td><td style=\"border-left-width: 0px\">reaction.severity</td><td/></tr><tr><td style=\"border-right-width: 0px\">AL1-5</td><td style=\"border-left-width: 0px\">Allergy Reaction Code</td><td/><td><a href=\"http://hl7.org/fhir/R5/codesystem-concept-map-relationship.html#equivalent\" title=\"equivalent\">is equivalent to</a></td><td style=\"border-right-width: 0px\">reaction.manifestation.text</td><td style=\"border-left-width: 0px\">reaction.manifestation.text</td><td>AllergyIntolerance.reaction can repeat, presumably to capture both multiple manifestations of the reaction (rash and nausea) as well as reactions to independent exposures (last week and last month) - we may want to confirm this understanding.\\</td></tr><tr><td style=\"border-right-width: 0px\">AL1-6</td><td style=\"border-left-width: 0px\">Identification Date</td><td/><td><a href=\"http://hl7.org/fhir/R5/codesystem-concept-map-relationship.html#equivalent\" title=\"equivalent\">is equivalent to</a></td><td style=\"border-right-width: 0px\">onsetDateTime</td><td style=\"border-left-width: 0px\">onsetDateTime</td><td>Withdrawn as of 2.7, Refer to IAM-11 Onset or IAM-13 Reported Date</td></tr></table></div>"
      },
      "extension" : [
        {
          "extension" : [
            {
              "url" : "type",
              "valueCode" : "derived-from"
            },
            {
              "url" : "label",
              "valueString" : "Segment AL1 to AllergyIntolerance.fsh"
            },
            {
              "url" : "url",
              "valueUri" : "https://docs.google.com/spreadsheets/d/10aUgY2Kw3sYlbaw-QHykWri8J3Fb3J_Xc7DvCY_nzyE/edit?usp=sharing"
            }
          ],
          "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/RelatedArtifact"
        },
        {
          "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
          "valueCode" : "oo"
        },
        {
          "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
          "valueCode" : "informative",
          "_valueCode" : {
            "extension" : [
              {
                "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
                "valueCanonical" : "http://hl7.org/fhir/uv/v2mappings/ImplementationGuide/hl7.fhir.uv.v2mappings"
              }
            ]
          }
        }
      ],
      "url" : "http://hl7.org/fhir/uv/v2mappings/ConceptMap/segment-al1-to-allergyintolerance",
      "version" : "1.0.0",
      "name" : "SegmentAL1ToAllergyIntolerance",
      "title" : "Segment AL1 to AllergyIntolerance Map",
      "status" : "active",
      "experimental" : true,
      "date" : "2025-08-25",
      "publisher" : "HL7 International / Orders and Observations",
      "contact" : [
        {
          "name" : "HL7 Orders and Observations Workgroup",
          "telecom" : [
            {
              "system" : "url",
              "value" : "http://www.hl7.org/Special/committees/orders"
            }
          ]
        }
      ],
      "description" : "This ConceptMap represents a mapping from the HL7 V2 Segment AL1 to the FHIR AllergyIntolerance Resource.",
      "jurisdiction" : [
        {
          "coding" : [
            {
              "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
              "code" : "001"
            }
          ]
        }
      ],
      "copyright" : "Copyright (c) 2025, HL7 International, Inc., All Rights Reserved.",
      "group" : [
        {
          "element" : [
            {
              "code" : "AL1",
              "target" : [
                {
                  "extension" : [
                    {
                      "extension" : [
                        {
                          "url" : "type",
                          "valueCode" : "code"
                        },
                        {
                          "url" : "cardinalityMin",
                          "valueInteger" : 0
                        },
                        {
                          "url" : "cardinalityMax",
                          "valueInteger" : 1
                        },
                        {
                          "url" : "assignment",
                          "valueString" : "\"active\""
                        }
                      ],
                      "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                    }
                  ],
                  "code" : "clinicalStatus.coding.code",
                  "display" : "clinicalStatus.coding.code",
                  "equivalence" : "equivalent",
                  "comment" : "While .clinicalStatus is not required, constraint ait-1 (AllergyIntolerance.clinicalStatus SHALL be present if verificationStatus is not entered-in-error.) does necessitate populating this element in the map as it's not possible to infer a verificationStatus of \"entered-in-error\" based on the data in AL1."
                }
              ]
            },
            {
              "code" : "AL1",
              "target" : [
                {
                  "extension" : [
                    {
                      "extension" : [
                        {
                          "url" : "type",
                          "valueCode" : "uri"
                        },
                        {
                          "url" : "cardinalityMin",
                          "valueInteger" : 0
                        },
                        {
                          "url" : "cardinalityMax",
                          "valueInteger" : 1
                        },
                        {
                          "url" : "assignment",
                          "valueString" : "\"http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical\""
                        }
                      ],
                      "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                    }
                  ],
                  "code" : "clinicalStatus.coding.system",
                  "display" : "clinicalStatus.coding.system",
                  "equivalence" : "equivalent"
                }
              ]
            },
            {
              "extension" : [
                {
                  "extension" : [
                    {
                      "url" : "type",
                      "valueCode" : "CWE"
                    },
                    {
                      "url" : "cardinalityMin",
                      "valueInteger" : 1
                    },
                    {
                      "url" : "cardinalityMax",
                      "valueInteger" : 1
                    }
                  ],
                  "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                }
              ],
              "code" : "AL1-2",
              "display" : "Allergen Type Code",
              "target" : [
                {
                  "extension" : [
                    {
                      "extension" : [
                        {
                          "url" : "type",
                          "valueCode" : "code"
                        },
                        {
                          "url" : "cardinalityMin",
                          "valueInteger" : 0
                        },
                        {
                          "url" : "cardinalityMax",
                          "valueInteger" : -1
                        },
                        {
                          "url" : "mappedVia",
                          "valueUrl" : "ConceptMap/table-hl70127-to-allergy-intolerance-category"
                        }
                      ],
                      "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                    }
                  ],
                  "code" : "category",
                  "display" : "category",
                  "equivalence" : "equivalent",
                  "comment" : "The FHIR table has a \"required\" binding. Do we need to expand the values in the FHIR table?\n\nCould other be used for:\nMiscellaneous allergy\nMiscellaneous contraindication\nAnimal Allergy\n\nHL70127 is a user defined table\\"
                }
              ]
            },
            {
              "extension" : [
                {
                  "extension" : [
                    {
                      "url" : "type",
                      "valueCode" : "CWE"
                    },
                    {
                      "url" : "cardinalityMin",
                      "valueInteger" : 1
                    },
                    {
                      "url" : "cardinalityMax",
                      "valueInteger" : 1
                    }
                  ],
                  "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                }
              ],
              "code" : "AL1-2",
              "display" : "Allergen Type Code",
              "target" : [
                {
                  "extension" : [
                    {
                      "extension" : [
                        {
                          "url" : "type",
                          "valueCode" : "uri"
                        },
                        {
                          "url" : "cardinalityMin",
                          "valueInteger" : 1
                        },
                        {
                          "url" : "cardinalityMax",
                          "valueInteger" : 1
                        },
                        {
                          "url" : "assignment",
                          "valueString" : "\"http://hl7.org/fhir/StructureDefinition/alternate-codes\""
                        }
                      ],
                      "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                    }
                  ],
                  "code" : "category.extension[1].url",
                  "display" : "category.extension[1].url",
                  "equivalence" : "equivalent"
                }
              ]
            },
            {
              "extension" : [
                {
                  "extension" : [
                    {
                      "url" : "type",
                      "valueCode" : "CWE"
                    },
                    {
                      "url" : "cardinalityMin",
                      "valueInteger" : 1
                    },
                    {
                      "url" : "cardinalityMax",
                      "valueInteger" : 1
                    }
                  ],
                  "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                }
              ],
              "code" : "AL1-2",
              "display" : "Allergen Type Code",
              "target" : [
                {
                  "extension" : [
                    {
                      "extension" : [
                        {
                          "url" : "type",
                          "valueCode" : "CodeableConcept"
                        },
                        {
                          "url" : "cardinalityMin",
                          "valueInteger" : 1
                        },
                        {
                          "url" : "cardinalityMax",
                          "valueInteger" : 1
                        },
                        {
                          "url" : "mappedVia",
                          "valueUrl" : "ConceptMap/table-hl70127-to-v2-0127"
                        }
                      ],
                      "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                    }
                  ],
                  "code" : "category.extension[1].valueCodeableConcept",
                  "display" : "category.extension[1].valueCodeableConcept",
                  "equivalence" : "equivalent"
                }
              ]
            },
            {
              "extension" : [
                {
                  "extension" : [
                    {
                      "url" : "type",
                      "valueCode" : "CWE"
                    },
                    {
                      "url" : "cardinalityMin",
                      "valueInteger" : 1
                    },
                    {
                      "url" : "cardinalityMax",
                      "valueInteger" : 1
                    }
                  ],
                  "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                }
              ],
              "code" : "AL1-2",
              "display" : "Allergen Type Code",
              "target" : [
                {
                  "extension" : [
                    {
                      "extension" : [
                        {
                          "url" : "type",
                          "valueCode" : "code"
                        },
                        {
                          "url" : "cardinalityMin",
                          "valueInteger" : 0
                        },
                        {
                          "url" : "cardinalityMax",
                          "valueInteger" : 1
                        },
                        {
                          "url" : "mappedVia",
                          "valueUrl" : "ConceptMap/table-hl70127-to-allergy-intolerance-type"
                        }
                      ],
                      "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                    }
                  ],
                  "code" : "type",
                  "display" : "type",
                  "equivalence" : "equivalent"
                }
              ]
            },
            {
              "extension" : [
                {
                  "extension" : [
                    {
                      "url" : "type",
                      "valueCode" : "CWE"
                    },
                    {
                      "url" : "cardinalityMin",
                      "valueInteger" : 1
                    },
                    {
                      "url" : "cardinalityMax",
                      "valueInteger" : 1
                    }
                  ],
                  "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                }
              ],
              "code" : "AL1-3",
              "display" : "Allergen Code/Mnemonic/Description",
              "target" : [
                {
                  "extension" : [
                    {
                      "extension" : [
                        {
                          "url" : "type",
                          "valueCode" : "CodeableConcept"
                        },
                        {
                          "url" : "cardinalityMin",
                          "valueInteger" : 0
                        },
                        {
                          "url" : "cardinalityMax",
                          "valueInteger" : 1
                        }
                      ],
                      "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                    }
                  ],
                  "code" : "code",
                  "display" : "code",
                  "equivalence" : "equivalent"
                }
              ]
            },
            {
              "extension" : [
                {
                  "extension" : [
                    {
                      "url" : "type",
                      "valueCode" : "CWE"
                    },
                    {
                      "url" : "cardinalityMin",
                      "valueInteger" : 1
                    },
                    {
                      "url" : "cardinalityMax",
                      "valueInteger" : 1
                    }
                  ],
                  "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                }
              ],
              "code" : "AL1-4",
              "display" : "Allergy Severity Code",
              "target" : [
                {
                  "extension" : [
                    {
                      "extension" : [
                        {
                          "url" : "type",
                          "valueCode" : "code"
                        },
                        {
                          "url" : "cardinalityMin",
                          "valueInteger" : 0
                        },
                        {
                          "url" : "cardinalityMax",
                          "valueInteger" : 1
                        },
                        {
                          "url" : "mappedVia",
                          "valueUrl" : "ConceptMap/table-hl70128-to-allergy-intolerance-criticality"
                        }
                      ],
                      "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                    }
                  ],
                  "code" : "criticality",
                  "display" : "criticality",
                  "equivalence" : "equivalent",
                  "comment" : "Note that AllergyIntolerance.reaction.severity is available in FHIR but from a base standard perspective that is actually not the most appropriate and would require that AL1-6 is valued as well.  However, a local implementation may have used vocabulary that better fits AllergyIntolerance.reaction.severity and should then consider that instead as a local variation.  Note that the .reaction though is at a particular time, while .criticality is an overall assement that matches HL7 v2 generally better.",
                  "dependsOn" : [
                    {
                      "property" : "Narrative-Condition",
                      "value" : "If severity was used equivalent to criticality"
                    }
                  ]
                }
              ]
            },
            {
              "extension" : [
                {
                  "extension" : [
                    {
                      "url" : "type",
                      "valueCode" : "CWE"
                    },
                    {
                      "url" : "cardinalityMin",
                      "valueInteger" : 1
                    },
                    {
                      "url" : "cardinalityMax",
                      "valueInteger" : 1
                    }
                  ],
                  "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                }
              ],
              "code" : "AL1-4",
              "display" : "Allergy Severity Code",
              "target" : [
                {
                  "extension" : [
                    {
                      "extension" : [
                        {
                          "url" : "type",
                          "valueCode" : "uri"
                        },
                        {
                          "url" : "cardinalityMin",
                          "valueInteger" : 1
                        },
                        {
                          "url" : "cardinalityMax",
                          "valueInteger" : 1
                        },
                        {
                          "url" : "assignment",
                          "valueString" : "\"http://hl7.org/fhir/StructureDefinition/alternate-codes\""
                        }
                      ],
                      "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                    }
                  ],
                  "code" : "criticality.extension[1].url",
                  "display" : "criticality.extension[1].url",
                  "equivalence" : "equivalent",
                  "dependsOn" : [
                    {
                      "property" : "Narrative-Condition",
                      "value" : "If severity was used equivalent to criticality"
                    }
                  ]
                }
              ]
            },
            {
              "extension" : [
                {
                  "extension" : [
                    {
                      "url" : "type",
                      "valueCode" : "CWE"
                    },
                    {
                      "url" : "cardinalityMin",
                      "valueInteger" : 1
                    },
                    {
                      "url" : "cardinalityMax",
                      "valueInteger" : 1
                    }
                  ],
                  "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                }
              ],
              "code" : "AL1-4",
              "display" : "Allergy Severity Code",
              "target" : [
                {
                  "extension" : [
                    {
                      "extension" : [
                        {
                          "url" : "type",
                          "valueCode" : "CodeableConcept"
                        },
                        {
                          "url" : "cardinalityMin",
                          "valueInteger" : 1
                        },
                        {
                          "url" : "cardinalityMax",
                          "valueInteger" : 1
                        },
                        {
                          "url" : "mappedVia",
                          "valueUrl" : "ConceptMap/table-hl70128-original-to-v2-0128"
                        }
                      ],
                      "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                    }
                  ],
                  "code" : "criticality.extension[1].valueCodeableConcept",
                  "display" : "criticality.extension[1].valueCodeableConcept",
                  "equivalence" : "equivalent",
                  "dependsOn" : [
                    {
                      "property" : "Narrative-Condition",
                      "value" : "If severity was used equivalent to criticality"
                    }
                  ]
                }
              ]
            },
            {
              "extension" : [
                {
                  "extension" : [
                    {
                      "url" : "type",
                      "valueCode" : "CWE"
                    },
                    {
                      "url" : "cardinalityMin",
                      "valueInteger" : 1
                    },
                    {
                      "url" : "cardinalityMax",
                      "valueInteger" : 1
                    }
                  ],
                  "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                }
              ],
              "code" : "AL1-4",
              "display" : "Allergy Severity Code",
              "target" : [
                {
                  "extension" : [
                    {
                      "extension" : [
                        {
                          "url" : "type",
                          "valueCode" : "code"
                        },
                        {
                          "url" : "cardinalityMin",
                          "valueInteger" : 0
                        },
                        {
                          "url" : "cardinalityMax",
                          "valueInteger" : 1
                        },
                        {
                          "url" : "mappedVia",
                          "valueUrl" : "ConceptMap/table-hl70128-to-reaction-event-severity"
                        }
                      ],
                      "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                    }
                  ],
                  "code" : "reaction.severity",
                  "display" : "reaction.severity",
                  "equivalence" : "equivalent",
                  "dependsOn" : [
                    {
                      "property" : "Narrative-Condition",
                      "value" : "If severity was not used equivalent to criticality"
                    }
                  ]
                }
              ]
            },
            {
              "extension" : [
                {
                  "extension" : [
                    {
                      "url" : "type",
                      "valueCode" : "ST"
                    },
                    {
                      "url" : "cardinalityMin",
                      "valueInteger" : -1
                    },
                    {
                      "url" : "cardinalityMax",
                      "valueInteger" : -1
                    }
                  ],
                  "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                }
              ],
              "code" : "AL1-5",
              "display" : "Allergy Reaction Code",
              "target" : [
                {
                  "extension" : [
                    {
                      "extension" : [
                        {
                          "url" : "type",
                          "valueCode" : "CodeableConcept"
                        },
                        {
                          "url" : "cardinalityMin",
                          "valueInteger" : 0
                        },
                        {
                          "url" : "cardinalityMax",
                          "valueInteger" : 1
                        }
                      ],
                      "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                    }
                  ],
                  "code" : "reaction.manifestation.text",
                  "display" : "reaction.manifestation.text",
                  "equivalence" : "equivalent",
                  "comment" : "AllergyIntolerance.reaction can repeat, presumably to capture both multiple manifestations of the reaction (rash and nausea) as well as reactions to independent exposures (last week and last month) - we may want to confirm this understanding.\\"
                }
              ]
            },
            {
              "extension" : [
                {
                  "extension" : [
                    {
                      "url" : "type",
                      "valueCode" : "DT"
                    },
                    {
                      "url" : "cardinalityMin",
                      "valueInteger" : 1
                    },
                    {
                      "url" : "cardinalityMax",
                      "valueInteger" : 1
                    }
                  ],
                  "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                }
              ],
              "code" : "AL1-6",
              "display" : "Identification Date",
              "target" : [
                {
                  "extension" : [
                    {
                      "extension" : [
                        {
                          "url" : "type",
                          "valueCode" : "dateTime"
                        },
                        {
                          "url" : "cardinalityMin",
                          "valueInteger" : 0
                        },
                        {
                          "url" : "cardinalityMax",
                          "valueInteger" : 1
                        }
                      ],
                      "url" : "http://hl7.org/fhir/uv/v2mappings/StructureDefinition/TypeInfo"
                    }
                  ],
                  "code" : "onsetDateTime",
                  "display" : "onsetDateTime",
                  "equivalence" : "equivalent",
                  "comment" : "Withdrawn as of 2.7, Refer to IAM-11 Onset or IAM-13 Reported Date"
                }
              ]
            }
          ]
        }
      ]
    }