### ----------------------------------------------------
### -- FHIR
### -- Licenses: Artistic-2.0
### -- Authors: Hugh Simpson
### -- File: t/resources/structureDefinition/AllergyIntolerance.json
### ----------------------------------------------------
### -- Chunk 6 of 8
" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "pc"
  }],
  "url" : "http://hl7.org/fhir/StructureDefinition/AllergyIntolerance",
  "version" : "4.0.0",
  "name" : "AllergyIntolerance",
  "status" : "draft",
  "date" : "2018-12-27T22:37:54+11:00",
  "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" : "Risk of harmful or undesirable, physiological response which is unique to an individual and associated with exposure to a substance.",
  "purpose" : "To record a clinical assessment of a propensity, or potential risk to an individual, of an adverse reaction upon future exposure to the specified substance, or class of substance.",
  "fhirVersion" : "4.0.0",
  "mapping" : [{
    "identity" : "rim",
    "uri" : "http://hl7.org/v3",
    "name" : "RIM Mapping"
  },
  {
    "identity" : "w5",
    "uri" : "http://hl7.org/fhir/fivews",
    "name" : "FiveWs Pattern Mapping"
  },
  {
    "identity" : "v2",
    "uri" : "http://hl7.org/v2",
    "name" : "HL7 v2 Mapping"
  }],
  "kind" : "resource",
  "abstract" : false,
  "type" : "AllergyIntolerance",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/DomainResource",
  "derivation" : "specialization",
  "snapshot" : {
    "element" : [{
      "id" : "AllergyIntolerance",
      "path" : "AllergyIntolerance",
      "short" : "Allergy or Intolerance (generally: Risk of adverse reaction to a substance)",
      "definition" : "Risk of harmful or undesirable, physiological response which is unique to an individual and associated with exposure to a substance.",
      "comment" : "Substances include, but are not limited to: a therapeutic substance administered correctly at an appropriate dosage for the individual; food; material derived from plants or animals; or venom from insect stings.",
      "alias" : ["Allergy",
      "Intolerance",
      "Adverse Reaction"],
      "min" : 0,
      "max" : "*",
      "base" : {
        "path" : "AllergyIntolerance",
        "min" : 0,
        "max" : "*"
      },
      "constraint" : [{
        "key" : "dom-2",
        "severity" : "error",
        "human" : "If the resource is contained in another resource, it SHALL NOT contain nested Resources",
        "expression" : "contained.contained.empty()",
        "xpath" : "not(parent::f:contained and f:contained)",
        "source" : "DomainResource"
      },
      {
        "key" : "dom-4",
        "severity" : "error",
        "human" : "If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated",
        "expression" : "contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()",
        "xpath" : "not(exists(f:contained/*/f:meta/f:versionId)) and not(exists(f:contained/*/f:meta/f:lastUpdated))",
        "source" : "DomainResource"
      },
      {
        "key" : "dom-3",
        "severity" : "error",
        "human" : "If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource",
        "expression" : "contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()",
        "xpath" : "not(exists(for $contained in f:contained return $contained[not(parent::*/descendant::f:reference/@value=concat('#', $contained/*/id/@value) or descendant::f:reference[@value='#'])]))",
        "source" : "DomainResource"
      },
      {
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice",
          "valueBoolean" : true
        },
        {
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice-explanation",
          "valueMarkdown" : "When a resource has no narrative, only systems that fully understand the data can display the resource to a human safely. Including a human readable representation in the resource makes for a much more robust eco-system and cheaper handling of resources by intermediary systems. Some ecosystems restrict distribution of resources to only those systems that do fully understand the resources, and as a consequence implementers may believe that the narrative is superfluous. However experience shows that such eco-systems often open up to new participants over time."
        }],
        "key" : "dom-6",
        "severity" : "warning",
        "human" : "A resource should have narrative for robust management",
        "expression" : "text.div.exists()",
        "xpath" : "exists(f:text/h:div)",
        "source" : "DomainResource"
      },
      {
        "key" : "dom-5",
        "severity" : "error",
        "human" : "If a resource is contained in another resource, it SHALL NOT have a security label",
        "expression" : "contained.meta.security.empty()",
        "xpath" : "not(exists(f:contained/*/f:meta/f:security))",
        "source" : "DomainResource"
      },
      {
        "key" : "ait-1",
        "severity" : "error",
        "human" : "AllergyIntolerance.clinicalStatus SHALL be present if verificationStatus is not entered-in-error.",
        "expression" : "verificationStatus='entered-in-error' or clinicalStatus.exists()",
        "xpath" : "f:verificationStatus/@value='entered-in-error' or exists(f:clinicalStatus)"
      },
      {
        "key" : "ait-2",
        "severity" : "error",
        "human" : "AllergyIntolerance.clinicalStatus SHALL NOT be present if verification Status is entered-in-error",
        "expression" : "verificationStatus!='entered-in-error' or clinicalStatus.empty()",
        "xpath" : "f:verificationStatus/@value!='entered-in-error' or not(exists(f:clinicalStatus))"
      }],
      "isModifier" : false,
      "isSummary" : false,
      "mapping" : [{
        "identity" : "rim",
        "map" : "Entity. Role, or Act"
      },
      {
        "identity" : "rim",
        "map" : "Observation[classCode=OBS, moodCode=EVN]"
      }]
    },
    {
      "id" : "AllergyIntolerance.id",
      "path" : "AllergyIntolerance.id",
      "short" : "Logical id of this artifact",
      "definition" : "The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.",
      "comment" : "The only time that a resource does not have an id is when it is being submitted to the server using a create operation.",
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "Resource.id",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "id"
      }],
      "isModifier" : false,
      "isSummary" : true
    },
    {
      "id" : "AllergyIntolerance.meta",
      "path" : "AllergyIntolerance.meta",
      "short" : "Metadata about the resource",
      "definition" : "The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.",
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "Resource.meta",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "Meta"
      }],
      "isModifier" : false,
      "isSummary" : true
    },
    {
      "id" : "AllergyIntolerance.implicitRules",
      "path" : "AllergyIntolerance.implicitRules",
      "short" : "A set of rules under which this content was created",
      "definition" : "A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.",
      "comment" : "Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.",
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "Resource.implicitRules",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "uri"
      }],
      "isModifier" : true,
      "isModifierReason" : "This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation",
      "isSummary" : true
    },
    {
      "id" : "AllergyIntolerance.language",
      "path" : "AllergyIntolerance.language",
      "short" : "Language of the resource content",
      "definition" : "The base language in which the resource is written.",
      "comment" : "Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies  to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).",
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "Resource.language",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "code"
      }],
      "isModifier" : false,
      "isSummary" : false,
      "binding" : {
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet",
          "valueCanonical" : "http://hl7.org/fhir/ValueSet/all-languages"
        },
        {
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString" : "Language"
        },
        {
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding",
          "valueBoolean" : true
        }],
        "strength" : "preferred",
        "description" : "A human language.",
        "valueSet" : "http://hl7.org/fhir/ValueSet/languages"
      }
    },
    {
      "id" : "AllergyIntolerance.text",
      "path" : "AllergyIntolerance.text",
      "short" : "Text summary of the resource, for human interpretation",
      "definition" : "A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it \"clinically safe\" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.",
      "comment" : "Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied).  This may be necessary for data from legacy systems where information is captured as a \"text blob\" or where text is additionally entered raw or narrated and encoded information is added later.",
      "alias" : ["narrative",
      "html",
      "xhtml",
      "display"],
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "DomainResource.text",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "Narrative"
      }],
      "isModifier" : false,
      "isSummary" : false,
      "mapping" : [{
        "identity" : "rim",
        "map" : "Act.text?"
      }]
    },
    {
      "id" : "AllergyIntolerance.contained",
      "path" : "AllergyIntolerance.contained",
      "short" : "Contained, inline Resources",
      "definition" : "These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.",
      "comment" : "This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.",
      "alias" : ["inline resources",
      "anonymous resources",
      "contained resources"],
      "min" : 0,
      "max" : "*",
      "base" : {
        "path" : "DomainResource.contained",
        "min" : 0,
        "max" : "*"
      },
      "type" : [{
        "code" : "Resource"
      }],
      "isModifier" : false,
      "isSummary" : false,
      "mapping" : [{
        "identity" : "rim",
        "map" : "N/A"
      }]
    },
    {
      "id" : "AllergyIntolerance.extension",
      "path" : "AllergyIntolerance.extension",
      "short" : "Additional content defined by implementations",
      "definition" : "May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "comment" : "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "alias" : ["extensions",
      "user content"],
      "min" : 0,
      "max" : "*",
      "base" : {
        "path" : "DomainResource.extension",
        "min" : 0,
        "max" : "*"
      },
      "type" : [{
        "code" : "Extension"
      }],
      "isModifier" : false,
      "isSummary" : false,
      "mapping" : [{
        "identity" : "rim",
        "map" : "N/A"
      }]
    },
    {
      "id" : "AllergyIntolerance.modifierExtension",
      "path" : "AllergyIntolerance.modifierExtension",
      "short" : "Extensions that cannot be ignored",
      "definition" : "May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "comment" : "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "requirements" : "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).",
      "alias" : ["extensions",
      "user content"],
      "min" : 0,
      "max" : "*",
      "base" : {
        "path" : "DomainResource.modifierExtension",
        "min" : 0,
        "max" : "*"
      },
      "type" : [{
        "code" : "Extension"
      }],
      "isModifier" : true,
      "isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them",
      "isSummary" : false,
      "mapping" : [{
        "identity" : "rim",
        "map" : "N/A"
      }]
    },
    {
      "id" : "AllergyIntolerance.identifier",
      "path" : "AllergyIntolerance.identifier",
      "short" : "External ids for this item",
      "definition" : "Business identifiers assigned to this AllergyIntolerance by the performer or other systems which remain constant as the resource is updated and propagates from server to server.",
      "comment" : "This is a business identifier, not a resource identifier (see [discussion](resource.html#identifiers)).  It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types.  For example, multiple Patient and a Person resource instance might share the same social insurance number.",
      "requirements" : "Allows identification of the AllergyIntolerance as it is known by various participating systems and in a way that remains consistent across servers.",
      "min" : 0,
      "max" : "*",
      "base" : {
        "path" : "AllergyIntolerance.identifier",
        "min" : 0,
        "max" : "*"
      },
      "type" : [{
        "code" : "Identifier"
      }],
      "isModifier" : false,
      "isSummary" : true,
      "mapping" : [{
        "identity" : "w5",
        "map" : "FiveWs.identifier"
      },
      {
        "identity" : "v2",
        "map" : "IAM-7"
      },
      {
        "identity" : "rim",
        "map" : "id"
      }]
    },
    {
      "id" : "AllergyIntolerance.clinicalStatus",
      "path" : "AllergyIntolerance.clinicalStatus",
      "short" : "active | inactive | resolved",
      "definition" : "The clinical status of the allergy or intolerance.",
      "comment" : "Refer to [discussion](extensibility.html#Special-Case) if clincalStatus is missing data.\nThe data type is CodeableConcept because clinicalStatus 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",
      "base" : {
        "path" : "AllergyIntolerance.clinicalStatus",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "CodeableConcept"
      }],
      "condition" : ["ait-1",
      "ait-2"],
      "isModifier" : true,
      "isModifierReason" : "This element is labeled as a modifier because the status contains the codes inactive and resolved that mark the AllergyIntolerance as no longer active.",
      "isSummary" : true,
      "binding" : {
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString" : "AllergyIntoleranceClinicalStatus"
        }],
        "strength" : "required",
        "description" : "The clinical status of the allergy or intolerance.",
        "valueSet" : "http://hl7.org/fhir/ValueSet/allergyintolerance-clinical|4.0.0"
      },
      "mapping" : [{
        "identity" : "w5",
        "map" : "FiveWs.status"
      },
      {
        "identity" : "rim",
        "map" : "Observation ACT .inboundRelationship[typeCode=COMP].source[classCode=OBS, code=\"clinicalStatus\", moodCode=EVN].value"
      }]
    },
    {
      "id" : "AllergyIntolerance.verificationStatus",
      "path" : "AllergyIntolerance.verificationStatus",
      "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",
      "base" : {
        "path" : "AllergyIntolerance.verificationStatus",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "CodeableConcept"
      }],
      "condition" : ["ait-1",
      "ait-2"],
      "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.",
      "isSummary" : true,
      "binding" : {
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString" : "AllergyIntoleranceVerificationStatus"
        }],
        "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|4.0.0"
      },
      "mapping" : [{
        "identity" : "w5",
        "map" : "FiveWs.status"
      },
      {
        "identity" : "rim",
        "map" : "Observation ACT .inboundRelationship[typeCode=COMP].source[classCode=OBS, code=\"verificationStatus\", moodCode=EVN].value"
      }]
    },
    {
      "id" : "AllergyIntolerance.type",
      "path" : "AllergyIntolerance.type",
      "short" : "allergy | intolerance - Underlying mechanism (if known)",
      "definition" : "Identification of the underlying physiological mechanism for the reaction risk.",
      "comment" : "Allergic (typically immune-mediated) reactions have been traditionally regarded as an indicator for potential escalation to significant future risk. Contemporary knowledge suggests that some reactions previously thought to be immune-mediated are, in fact, non-immune, but in some cases can still pose a life threatening risk. It is acknowledged that many clinicians might not be in a position to distinguish the mechanism of a particular reaction. Often the term \"allergy\" is used rather generically and may overlap with the use of \"intolerance\" - in practice the boundaries between these two concepts might not be well-defined or understood. This data element is included nevertheless, because many legacy systems have captured this attribute. Immunologic testing may provide supporting evidence for the basis of the reaction and the causative substance, but no tests are 100% sensitive or specific for sensitivity to a particular substance. If, as is commonly the case, it is unclear whether the reaction is due to an allergy or an intolerance, then the type element should be omitted from the resource.",
      "alias" : ["Category",
      "Class"],
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "AllergyIntolerance.type",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "code"
      }],
      "isModifier" : false,
      "isSummary" : true,
      "binding" : {
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString" : "AllergyIntoleranceType"
        }],
        "strength" : "required",
        "description" : "Identification of the underlying physiological mechanism for a Reaction Risk.",
        "valueSet" : "http://hl7.org/fhir/ValueSet/allergy-intolerance-type|4.0.0"
      },
      "mapping" : [{
        "identity" : "w5",
        "map" : "FiveWs.class"
      },
      {
        "identity" : "v2",
        "map" : "IAM-9"
      },
      {
        "identity" : "rim",
        "map" : "code"
      }]
    },
    {
      "id" : "AllergyIntolerance.category",
      "path" : "AllergyIntolerance.category",
      "short" : "food | medication | environment | biologic",
      "definition" : "Category of the identified substance.",
      "comment" : "This data element has been included because it is currently being captured in some clinical systems. This data can be derived from the substance where coding systems are used, and is effectively redundant in that situation.  When searching on category, consider the implications of AllergyIntolerance resources without a category.  For example, when searching on category = medication, medication allergies that don't have a category valued will not be returned.  Refer to [search](search.html) for more information on how to search category with a :missing modifier to get allergies that don't have a category.  Additionally, category should be used with caution because category can be subjective based on the sender.",
      "alias" : ["Category",
      "Type",
      "Reaction Type",
      "Class"],
      "min" : 0,
      "max" : "*",
      "base" : {
        "path" : "AllergyIntolerance.category",
        "min" : 0,
        "max" : "*"
      },
      "type" : [{
        "code" : "code"
      }],
      "isModifier" : false,
      "isSummary" : true,
      "binding" : {
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString" : "AllergyIntoleranceCategory"
        }],
        "strength" : "required",
        "description" : "Category of an identified substance associated with allergies or intolerances.",
        "valueSet" : "http://hl7.org/fhir/ValueSet/allergy-intolerance-category|4.0.0"
      },
      "mapping" : [{
        "identity" : "w5",
        "map" : "FiveWs.class"
      },
      {
        "identity" : "v2",
        "map" : "AL1-2"
      },
      {
        "identity" : "rim",
        "map" : "value < IntoleranceValue (Agent)"
      }]
    },
    {
      "id" : "AllergyIntolerance.criticality",
      "path" : "AllergyIntolerance.criticality",
      "short" : "low | high | unable-to-assess",
      "definition" : "Estimate of the potential clinical harm, or seriousness, of the reaction to the identified substance.",
      "comment" : "The default criticality value for any propensity to an adverse reaction should be 'Low Risk', indicating at the very least a relative contraindication to deliberate or voluntary exposure to the substance. 'High Risk' is flagged if the clinician has identified a propensity for a more serious or potentially life-threatening reaction, such as anaphylaxis, and implies an absolute contraindication to deliberate or voluntary exposure to the substance. If this element is missing, the criticality is unknown (though it may be known elsewhere).  Systems that capture a severity at the condition level are actually representing the concept of criticality whereas the severity documented at the reaction level is representing the true reaction severity.  Existing systems that are capturing both condition criticality and reaction severity may use the term \"severity\" to represent both.  Criticality is the worst it could be in the future (i.e. situation-agnostic) whereas severity is situation-dependent.",
      "alias" : ["Severity",
      "Seriousness",
      "Contra-indication",
      "Risk"],
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "AllergyIntolerance.criticality",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "code"
      }],
      "isModifier" : false,
      "isSummary" : true,
      "binding" : {
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString" : "AllergyIntoleranceCriticality"
        }],
        "strength" : "required",
        "description" : "Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance.",
        "valueSet" : "http://hl7.org/fhir/ValueSet/allergy-intolerance-criticality|4.0.0"
      },
      "mapping" : [{
        "identity" : "w5",
        "map" : "FiveWs.grade"
      },
      {
        "identity" : "v2",
        "map" : "AL1-4"
      },
      {
        "identity" : "rim",
        "map" : "inboundRelationship[typeCode=SUBJ].source[classCode=OBS, moodCode=EVN, code=SEV, value <= SeverityObservation (Severity Level)]"
      }]
    },
    {
      "id" : "AllergyIntolerance.code",
      "path" : "AllergyIntolerance.code",
      "short" : "Code that identifies the allergy or intolerance",
      "definition" : "Code for an allergy or intolerance statement (either a positive or a negated/excluded statement).  This may be a code for a substance or pharmaceutical product that is considered to be responsible for the adverse reaction risk (e.g., \"Latex\"), an allergy or intolerance condition (e.g., \"Latex allergy\"), or a negated/excluded code for a specific substance or class (e.g., \"No latex allergy\") or a general or categorical negated statement (e.g.,  \"No known allergy\", \"No known drug allergies\").  Note: the substance for a specific reaction may be different from the substance identified as the cause of the risk, but it must be consistent with it. For instance, it may be a more specific substance (e.g. a brand medication) or a composite product that includes the identified substance. It must be clinically safe to only process the 'code' and ignore the 'reaction.substance'.  If a receiving system is unable to confirm that AllergyIntolerance.reaction.substance falls within the semantic scope of AllergyIntolerance.code, then the receiving system should ignore AllergyIntolerance.reaction.substance.",
      "comment" : "It is strongly recommended that this element be populated using a terminology, where possible. For example, some terminologies used include RxNorm, SNOMED CT, DM+D, NDFRT, ICD-9, IDC-10, UNII, and ATC. Plain text should only be used if there is no appropriate terminology available. Additional details can be specified in the text.\r\rWhen a substance or product code is specified for the 'code' element, the \"default\" semantic context is that this is a positive statement of an allergy or intolerance (depending on the value of the 'type' element, if present) condition to the specified substance/product.  In the corresponding SNOMED CT allergy model, the specified substance/product is the target (destination) of the \"Causative agent\" relationship.\r\rThe 'substanceExposureRisk' extension is available as a structured and more flexible alternative to the 'code' element for making positive or negative allergy or intolerance statements.  This extension provides the capability to make \"no known allergy\" (or \"no risk of adverse reaction\") statements regarding any coded substance/product (including cases when a pre-coordinated \"no allergy to x\" concept for that substance/product does not exist).  If the 'substanceExposureRisk' extension is present, the AllergyIntolerance.code element SHALL be omitted.",
      "alias" : ["Code"],
      "min" : 0,
      "max" : "1",
      "base" : {
        "path" : "AllergyIntolerance.code",
        "min" : 0,
        "max" : "1"
      },
      "type" : [{
        "code" : "CodeableConcept"
      }],
      "isModifier" : false,
      "isSummary" : true,
      "binding" : {
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString" : "AllergyIntoleranceCode"
        }],
        "strength" : "example",
        "description" : "Type of the substance/product, allergy or intolerance condition, or negation/exclusion codes for reporting no known allergies.",
        "valueSet" : "http://hl7.org/fhir/ValueSet/allergyintolerance-code"
      },
      "mapping" : [{
        "identity" : "w5",
        "map" : "FiveWs.what[x]"
      },
      {
        "identity" : "v2",
        "map" : "AL1-3 / IAM-3"
      },
      {
        "identity" : "rim",
        "map" : "substance/product:\r\r.participation[typeCode=CAGNT].role[classCode=ADMM].player[classCode=MAT, determinerCode=KIND, code <= ExposureAgentEntityType]\r\rnegated/excluded substance/product:\r\r.participation[typeCode=CAGNT, negationInd=true].role[classCode=ADMM].player[classCode=MAT, determinerCode=KIND, code <= ExposureAgentEntityType]\r\rpositive or negated/excluded condition/situation:\r\rObservation.code=ASSERTION; Observation.value"
      }]
    },
    {
      "id" : "AllergyIntolerance.patient",
      "path" : "AllergyIntolerance.patient",
      "short" : "Who the sensitivity is for",
      "definition" : "The patient who has the allergy or intolerance.",
      "alias" : ["Patient"],
      "min" : 1,
      "max" : "1",
      "base" : {
        "