Food Allergies FHIR Implementation Guide, published by fnovillo. This guide is not an authorized publication; it is the continuous build for version 0.1.0-test built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/novillof/foodAllergy and changes regularly. See the Directory of published versions

• Content
• Detailed Descriptions
• Mappings
• XML
• JSON
• TTL

Resource Profile: Food Allergy

Food Allergy profile

Usages:

• Examples for this Profile: AllergyIntolerance/MyPeanutAllergy

Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

• Key Elements Table
• Differential Table
• Snapshot Table
• Statistics/References
• All

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
AllergyIntolerance	C	0..*	AllergyIntolerance	Allergy or Intolerance (generally: Risk of adverse reaction to a substance) Constraints: ait-1, ait-2
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
clinicalStatus	?!SΣC	1..1	CodeableConcept	active | inactive | resolved Binding: AllergyIntoleranceClinicalStatusCodes (required): The clinical status of the allergy or intolerance.
verificationStatus	?!SΣC	1..1	CodeableConcept	unconfirmed | confirmed | refuted | entered-in-error Binding: AllergyIntoleranceVerificationStatusCodes (required): Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance.
code	SΣ	1..1	CodeableConcept	Code that identifies the allergy or intolerance Binding: Food Allergies (extensible)
patient	SΣ	1..1	Reference(Patient)	Who the sensitivity is for
recordedDate	S	0..1	dateTime	Date first version of the resource instance was recorded
recorder	S	0..1	Reference(Practitioner | PractitionerRole | Patient | RelatedPerson)	Who recorded the sensitivity
asserter	SΣ	0..1	Reference(Patient | RelatedPerson | Practitioner | PractitionerRole)	Source of the information about the allergy
reaction	S	0..*	BackboneElement	Adverse Reaction Events linked to exposure to substance
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
extension:certainty	S	0..1	CodeableConcept	Certainty that the substance was the cause of the manifestation URL: http://hl7.org/fhir/StructureDefinition/allergyintolerance-certainty Binding: AllergyIntoleranceCertainty (extensible): Statement about the degree of clinical certainty that a specific substance was the cause of the manifestation in a reaction event.
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
manifestation	S	1..*	CodeableConcept	Clinical symptoms/signs associated with the Event Binding: SNOMEDCTClinicalFindings (example): Clinical symptoms and/or signs that are observed or associated with an Adverse Reaction Event.
exposureRoute	S	0..1	CodeableConcept	How the subject was exposed to the substance Binding: SNOMEDCTRouteCodes (example): A coded concept describing the route or physiological path of administration of a therapeutic agent into or onto the body of a subject.
note	S	0..*	Annotation	Text about event not captured in other fields
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
AllergyIntolerance.clinicalStatus	required	AllergyIntoleranceClinicalStatusCodes http://hl7.org/fhir/ValueSet/allergyintolerance-clinical|4.0.1 From the FHIR Standard
AllergyIntolerance.verificationStatus	required	AllergyIntoleranceVerificationStatusCodes http://hl7.org/fhir/ValueSet/allergyintolerance-verification|4.0.1 From the FHIR Standard
AllergyIntolerance.code	extensible	FoodAllergyVS http://example.com/fhir/example/ValueSet/FoodAllergyVS From this IG
AllergyIntolerance.reaction.manifestation	example	SNOMEDCTClinicalFindings http://hl7.org/fhir/ValueSet/clinical-findings From the FHIR Standard
AllergyIntolerance.reaction.exposureRoute	example	SNOMEDCTRouteCodes http://hl7.org/fhir/ValueSet/route-codes From the FHIR Standard

Constraints

Id	Grade	Path(s)	Details	Requirements
ait-1	error	AllergyIntolerance	AllergyIntolerance.clinicalStatus SHALL be present if verificationStatus is not entered-in-error. : verificationStatus.coding.where(system = 'http://terminology.hl7.org/CodeSystem/allergyintolerance-verification' and code = 'entered-in-error').exists() or clinicalStatus.exists()
ait-2	error	AllergyIntolerance	AllergyIntolerance.clinicalStatus SHALL NOT be present if verification Status is entered-in-error : verificationStatus.coding.where(system = 'http://terminology.hl7.org/CodeSystem/allergyintolerance-verification' and code = 'entered-in-error').empty() or clinicalStatus.empty()
dom-2	error	AllergyIntolerance	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-3	error	AllergyIntolerance	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 : 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()
dom-4	error	AllergyIntolerance	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated : contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	AllergyIntolerance	If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty()
dom-6	best practice	AllergyIntolerance	A resource should have narrative for robust management : text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()

This structure is derived from AllergyIntolerance

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
AllergyIntolerance		0..*	AllergyIntolerance	Allergy or Intolerance (generally: Risk of adverse reaction to a substance)
clinicalStatus	S	1..1	CodeableConcept	active | inactive | resolved
verificationStatus	S	1..1	CodeableConcept	unconfirmed | confirmed | refuted | entered-in-error
code	S	1..1	CodeableConcept	Code that identifies the allergy or intolerance Binding: Food Allergies (extensible)
patient	S	1..1	Reference(Patient)	Who the sensitivity is for
recordedDate	S	0..1	dateTime	Date first version of the resource instance was recorded
recorder	S	0..1	Reference(Practitioner | PractitionerRole | Patient | RelatedPerson)	Who recorded the sensitivity
asserter	S	0..1	Reference(Patient | RelatedPerson | Practitioner | PractitionerRole)	Source of the information about the allergy
reaction	S	0..*	BackboneElement	Adverse Reaction Events linked to exposure to substance
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
extension:certainty	S	0..1	CodeableConcept	Certainty that the substance was the cause of the manifestation URL: http://hl7.org/fhir/StructureDefinition/allergyintolerance-certainty Binding: AllergyIntoleranceCertainty (extensible): Statement about the degree of clinical certainty that a specific substance was the cause of the manifestation in a reaction event.
manifestation	S	1..*	CodeableConcept	Clinical symptoms/signs associated with the Event
exposureRoute	S	0..1	CodeableConcept	How the subject was exposed to the substance
note	S	0..*	Annotation	Text about event not captured in other fields
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet	URI
AllergyIntolerance.code	extensible	FoodAllergyVS http://example.com/fhir/example/ValueSet/FoodAllergyVS From this IG

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
AllergyIntolerance	C	0..*	AllergyIntolerance	Allergy or Intolerance (generally: Risk of adverse reaction to a substance) Constraints: ait-1, ait-2
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding
text		0..1	Narrative	Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	Σ	0..*	Identifier	External ids for this item
clinicalStatus	?!SΣC	1..1	CodeableConcept	active | inactive | resolved Binding: AllergyIntoleranceClinicalStatusCodes (required): The clinical status of the allergy or intolerance.
verificationStatus	?!SΣC	1..1	CodeableConcept	unconfirmed | confirmed | refuted | entered-in-error Binding: AllergyIntoleranceVerificationStatusCodes (required): Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance.
type	Σ	0..1	code	allergy | intolerance - Underlying mechanism (if known) Binding: AllergyIntoleranceType (required): Identification of the underlying physiological mechanism for a Reaction Risk.
category	Σ	0..*	code	food | medication | environment | biologic Binding: AllergyIntoleranceCategory (required): Category of an identified substance associated with allergies or intolerances.
criticality	Σ	0..1	code	low | high | unable-to-assess Binding: AllergyIntoleranceCriticality (required): Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance.
code	SΣ	1..1	CodeableConcept	Code that identifies the allergy or intolerance Binding: Food Allergies (extensible)
patient	SΣ	1..1	Reference(Patient)	Who the sensitivity is for
encounter		0..1	Reference(Encounter)	Encounter when the allergy or intolerance was asserted
onset[x]		0..1		When allergy or intolerance was identified
onsetDateTime			dateTime
onsetAge			Age
onsetPeriod			Period
onsetRange			Range
onsetString			string
recordedDate	S	0..1	dateTime	Date first version of the resource instance was recorded
recorder	S	0..1	Reference(Practitioner | PractitionerRole | Patient | RelatedPerson)	Who recorded the sensitivity
asserter	SΣ	0..1	Reference(Patient | RelatedPerson | Practitioner | PractitionerRole)	Source of the information about the allergy
lastOccurrence		0..1	dateTime	Date(/time) of last known occurrence of a reaction
note		0..*	Annotation	Additional text not captured in other fields
reaction	S	0..*	BackboneElement	Adverse Reaction Events linked to exposure to substance
id		0..1	string	Unique id for inter-element referencing
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
extension:certainty	S	0..1	CodeableConcept	Certainty that the substance was the cause of the manifestation URL: http://hl7.org/fhir/StructureDefinition/allergyintolerance-certainty Binding: AllergyIntoleranceCertainty (extensible): Statement about the degree of clinical certainty that a specific substance was the cause of the manifestation in a reaction event.
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
substance		0..1	CodeableConcept	Specific substance or pharmaceutical product considered to be responsible for event Binding: SubstanceCode (example): Codes defining the type of the substance (including pharmaceutical products).
manifestation	S	1..*	CodeableConcept	Clinical symptoms/signs associated with the Event Binding: SNOMEDCTClinicalFindings (example): Clinical symptoms and/or signs that are observed or associated with an Adverse Reaction Event.
description		0..1	string	Description of the event as a whole
onset		0..1	dateTime	Date(/time) when manifestations showed
severity		0..1	code	mild | moderate | severe (of event as a whole) Binding: AllergyIntoleranceSeverity (required): Clinical assessment of the severity of a reaction event as a whole, potentially considering multiple different manifestations.
exposureRoute	S	0..1	CodeableConcept	How the subject was exposed to the substance Binding: SNOMEDCTRouteCodes (example): A coded concept describing the route or physiological path of administration of a therapeutic agent into or onto the body of a subject.
note	S	0..*	Annotation	Text about event not captured in other fields
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
AllergyIntolerance.language	preferred	CommonLanguages http://hl7.org/fhir/ValueSet/languages From the FHIR Standard Additional Bindings Purpose AllLanguages Max Binding
AllergyIntolerance.clinicalStatus	required	AllergyIntoleranceClinicalStatusCodes http://hl7.org/fhir/ValueSet/allergyintolerance-clinical|4.0.1 From the FHIR Standard
AllergyIntolerance.verificationStatus	required	AllergyIntoleranceVerificationStatusCodes http://hl7.org/fhir/ValueSet/allergyintolerance-verification|4.0.1 From the FHIR Standard
AllergyIntolerance.type	required	AllergyIntoleranceType http://hl7.org/fhir/ValueSet/allergy-intolerance-type|4.0.1 From the FHIR Standard
AllergyIntolerance.category	required	AllergyIntoleranceCategory http://hl7.org/fhir/ValueSet/allergy-intolerance-category|4.0.1 From the FHIR Standard
AllergyIntolerance.criticality	required	AllergyIntoleranceCriticality http://hl7.org/fhir/ValueSet/allergy-intolerance-criticality|4.0.1 From the FHIR Standard
AllergyIntolerance.code	extensible	FoodAllergyVS http://example.com/fhir/example/ValueSet/FoodAllergyVS From this IG
AllergyIntolerance.reaction.substance	example	SubstanceCode http://hl7.org/fhir/ValueSet/substance-code From the FHIR Standard
AllergyIntolerance.reaction.manifestation	example	SNOMEDCTClinicalFindings http://hl7.org/fhir/ValueSet/clinical-findings From the FHIR Standard
AllergyIntolerance.reaction.severity	required	AllergyIntoleranceSeverity http://hl7.org/fhir/ValueSet/reaction-event-severity|4.0.1 From the FHIR Standard
AllergyIntolerance.reaction.exposureRoute	example	SNOMEDCTRouteCodes http://hl7.org/fhir/ValueSet/route-codes From the FHIR Standard

Constraints

Id	Grade	Path(s)	Details	Requirements
ait-1	error	AllergyIntolerance	AllergyIntolerance.clinicalStatus SHALL be present if verificationStatus is not entered-in-error. : verificationStatus.coding.where(system = 'http://terminology.hl7.org/CodeSystem/allergyintolerance-verification' and code = 'entered-in-error').exists() or clinicalStatus.exists()
ait-2	error	AllergyIntolerance	AllergyIntolerance.clinicalStatus SHALL NOT be present if verification Status is entered-in-error : verificationStatus.coding.where(system = 'http://terminology.hl7.org/CodeSystem/allergyintolerance-verification' and code = 'entered-in-error').empty() or clinicalStatus.empty()
dom-2	error	AllergyIntolerance	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-3	error	AllergyIntolerance	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 : 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()
dom-4	error	AllergyIntolerance	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated : contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	AllergyIntolerance	If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty()
dom-6	best practice	AllergyIntolerance	A resource should have narrative for robust management : text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()

This structure is derived from AllergyIntolerance

Summary

Mandatory: 3 elements
Must-Support: 12 elements

Extensions

This structure refers to these extensions:

• http://hl7.org/fhir/StructureDefinition/allergyintolerance-certainty

Key Elements View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
AllergyIntolerance	C	0..*	AllergyIntolerance	Allergy or Intolerance (generally: Risk of adverse reaction to a substance) Constraints: ait-1, ait-2
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
clinicalStatus	?!SΣC	1..1	CodeableConcept	active | inactive | resolved Binding: AllergyIntoleranceClinicalStatusCodes (required): The clinical status of the allergy or intolerance.
verificationStatus	?!SΣC	1..1	CodeableConcept	unconfirmed | confirmed | refuted | entered-in-error Binding: AllergyIntoleranceVerificationStatusCodes (required): Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance.
code	SΣ	1..1	CodeableConcept	Code that identifies the allergy or intolerance Binding: Food Allergies (extensible)
patient	SΣ	1..1	Reference(Patient)	Who the sensitivity is for
recordedDate	S	0..1	dateTime	Date first version of the resource instance was recorded
recorder	S	0..1	Reference(Practitioner | PractitionerRole | Patient | RelatedPerson)	Who recorded the sensitivity
asserter	SΣ	0..1	Reference(Patient | RelatedPerson | Practitioner | PractitionerRole)	Source of the information about the allergy
reaction	S	0..*	BackboneElement	Adverse Reaction Events linked to exposure to substance
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
extension:certainty	S	0..1	CodeableConcept	Certainty that the substance was the cause of the manifestation URL: http://hl7.org/fhir/StructureDefinition/allergyintolerance-certainty Binding: AllergyIntoleranceCertainty (extensible): Statement about the degree of clinical certainty that a specific substance was the cause of the manifestation in a reaction event.
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
manifestation	S	1..*	CodeableConcept	Clinical symptoms/signs associated with the Event Binding: SNOMEDCTClinicalFindings (example): Clinical symptoms and/or signs that are observed or associated with an Adverse Reaction Event.
exposureRoute	S	0..1	CodeableConcept	How the subject was exposed to the substance Binding: SNOMEDCTRouteCodes (example): A coded concept describing the route or physiological path of administration of a therapeutic agent into or onto the body of a subject.
note	S	0..*	Annotation	Text about event not captured in other fields
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
AllergyIntolerance.clinicalStatus	required	AllergyIntoleranceClinicalStatusCodes http://hl7.org/fhir/ValueSet/allergyintolerance-clinical|4.0.1 From the FHIR Standard
AllergyIntolerance.verificationStatus	required	AllergyIntoleranceVerificationStatusCodes http://hl7.org/fhir/ValueSet/allergyintolerance-verification|4.0.1 From the FHIR Standard
AllergyIntolerance.code	extensible	FoodAllergyVS http://example.com/fhir/example/ValueSet/FoodAllergyVS From this IG
AllergyIntolerance.reaction.manifestation	example	SNOMEDCTClinicalFindings http://hl7.org/fhir/ValueSet/clinical-findings From the FHIR Standard
AllergyIntolerance.reaction.exposureRoute	example	SNOMEDCTRouteCodes http://hl7.org/fhir/ValueSet/route-codes From the FHIR Standard

Constraints

Id	Grade	Path(s)	Details	Requirements
ait-1	error	AllergyIntolerance	AllergyIntolerance.clinicalStatus SHALL be present if verificationStatus is not entered-in-error. : verificationStatus.coding.where(system = 'http://terminology.hl7.org/CodeSystem/allergyintolerance-verification' and code = 'entered-in-error').exists() or clinicalStatus.exists()
ait-2	error	AllergyIntolerance	AllergyIntolerance.clinicalStatus SHALL NOT be present if verification Status is entered-in-error : verificationStatus.coding.where(system = 'http://terminology.hl7.org/CodeSystem/allergyintolerance-verification' and code = 'entered-in-error').empty() or clinicalStatus.empty()
dom-2	error	AllergyIntolerance	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-3	error	AllergyIntolerance	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 : 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()
dom-4	error	AllergyIntolerance	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated : contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	AllergyIntolerance	If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty()
dom-6	best practice	AllergyIntolerance	A resource should have narrative for robust management : text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()

Differential View

This structure is derived from AllergyIntolerance

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
AllergyIntolerance		0..*	AllergyIntolerance	Allergy or Intolerance (generally: Risk of adverse reaction to a substance)
clinicalStatus	S	1..1	CodeableConcept	active | inactive | resolved
verificationStatus	S	1..1	CodeableConcept	unconfirmed | confirmed | refuted | entered-in-error
code	S	1..1	CodeableConcept	Code that identifies the allergy or intolerance Binding: Food Allergies (extensible)
patient	S	1..1	Reference(Patient)	Who the sensitivity is for
recordedDate	S	0..1	dateTime	Date first version of the resource instance was recorded
recorder	S	0..1	Reference(Practitioner | PractitionerRole | Patient | RelatedPerson)	Who recorded the sensitivity
asserter	S	0..1	Reference(Patient | RelatedPerson | Practitioner | PractitionerRole)	Source of the information about the allergy
reaction	S	0..*	BackboneElement	Adverse Reaction Events linked to exposure to substance
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
extension:certainty	S	0..1	CodeableConcept	Certainty that the substance was the cause of the manifestation URL: http://hl7.org/fhir/StructureDefinition/allergyintolerance-certainty Binding: AllergyIntoleranceCertainty (extensible): Statement about the degree of clinical certainty that a specific substance was the cause of the manifestation in a reaction event.
manifestation	S	1..*	CodeableConcept	Clinical symptoms/signs associated with the Event
exposureRoute	S	0..1	CodeableConcept	How the subject was exposed to the substance
note	S	0..*	Annotation	Text about event not captured in other fields
Documentation for this format

Terminology Bindings (Differential)

Path	Conformance	ValueSet	URI
AllergyIntolerance.code	extensible	FoodAllergyVS http://example.com/fhir/example/ValueSet/FoodAllergyVS From this IG

Snapshot View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
AllergyIntolerance	C	0..*	AllergyIntolerance	Allergy or Intolerance (generally: Risk of adverse reaction to a substance) Constraints: ait-1, ait-2
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding
text		0..1	Narrative	Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
identifier	Σ	0..*	Identifier	External ids for this item
clinicalStatus	?!SΣC	1..1	CodeableConcept	active | inactive | resolved Binding: AllergyIntoleranceClinicalStatusCodes (required): The clinical status of the allergy or intolerance.
verificationStatus	?!SΣC	1..1	CodeableConcept	unconfirmed | confirmed | refuted | entered-in-error Binding: AllergyIntoleranceVerificationStatusCodes (required): Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance.
type	Σ	0..1	code	allergy | intolerance - Underlying mechanism (if known) Binding: AllergyIntoleranceType (required): Identification of the underlying physiological mechanism for a Reaction Risk.
category	Σ	0..*	code	food | medication | environment | biologic Binding: AllergyIntoleranceCategory (required): Category of an identified substance associated with allergies or intolerances.
criticality	Σ	0..1	code	low | high | unable-to-assess Binding: AllergyIntoleranceCriticality (required): Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance.
code	SΣ	1..1	CodeableConcept	Code that identifies the allergy or intolerance Binding: Food Allergies (extensible)
patient	SΣ	1..1	Reference(Patient)	Who the sensitivity is for
encounter		0..1	Reference(Encounter)	Encounter when the allergy or intolerance was asserted
onset[x]		0..1		When allergy or intolerance was identified
onsetDateTime			dateTime
onsetAge			Age
onsetPeriod			Period
onsetRange			Range
onsetString			string
recordedDate	S	0..1	dateTime	Date first version of the resource instance was recorded
recorder	S	0..1	Reference(Practitioner | PractitionerRole | Patient | RelatedPerson)	Who recorded the sensitivity
asserter	SΣ	0..1	Reference(Patient | RelatedPerson | Practitioner | PractitionerRole)	Source of the information about the allergy
lastOccurrence		0..1	dateTime	Date(/time) of last known occurrence of a reaction
note		0..*	Annotation	Additional text not captured in other fields
reaction	S	0..*	BackboneElement	Adverse Reaction Events linked to exposure to substance
id		0..1	string	Unique id for inter-element referencing
Slices for extension		0..*	Extension	Extension Slice: Unordered, Open by value:url
extension:certainty	S	0..1	CodeableConcept	Certainty that the substance was the cause of the manifestation URL: http://hl7.org/fhir/StructureDefinition/allergyintolerance-certainty Binding: AllergyIntoleranceCertainty (extensible): Statement about the degree of clinical certainty that a specific substance was the cause of the manifestation in a reaction event.
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
substance		0..1	CodeableConcept	Specific substance or pharmaceutical product considered to be responsible for event Binding: SubstanceCode (example): Codes defining the type of the substance (including pharmaceutical products).
manifestation	S	1..*	CodeableConcept	Clinical symptoms/signs associated with the Event Binding: SNOMEDCTClinicalFindings (example): Clinical symptoms and/or signs that are observed or associated with an Adverse Reaction Event.
description		0..1	string	Description of the event as a whole
onset		0..1	dateTime	Date(/time) when manifestations showed
severity		0..1	code	mild | moderate | severe (of event as a whole) Binding: AllergyIntoleranceSeverity (required): Clinical assessment of the severity of a reaction event as a whole, potentially considering multiple different manifestations.
exposureRoute	S	0..1	CodeableConcept	How the subject was exposed to the substance Binding: SNOMEDCTRouteCodes (example): A coded concept describing the route or physiological path of administration of a therapeutic agent into or onto the body of a subject.
note	S	0..*	Annotation	Text about event not captured in other fields
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
AllergyIntolerance.language	preferred	CommonLanguages http://hl7.org/fhir/ValueSet/languages From the FHIR Standard Additional Bindings Purpose AllLanguages Max Binding
AllergyIntolerance.clinicalStatus	required	AllergyIntoleranceClinicalStatusCodes http://hl7.org/fhir/ValueSet/allergyintolerance-clinical|4.0.1 From the FHIR Standard
AllergyIntolerance.verificationStatus	required	AllergyIntoleranceVerificationStatusCodes http://hl7.org/fhir/ValueSet/allergyintolerance-verification|4.0.1 From the FHIR Standard
AllergyIntolerance.type	required	AllergyIntoleranceType http://hl7.org/fhir/ValueSet/allergy-intolerance-type|4.0.1 From the FHIR Standard
AllergyIntolerance.category	required	AllergyIntoleranceCategory http://hl7.org/fhir/ValueSet/allergy-intolerance-category|4.0.1 From the FHIR Standard
AllergyIntolerance.criticality	required	AllergyIntoleranceCriticality http://hl7.org/fhir/ValueSet/allergy-intolerance-criticality|4.0.1 From the FHIR Standard
AllergyIntolerance.code	extensible	FoodAllergyVS http://example.com/fhir/example/ValueSet/FoodAllergyVS From this IG
AllergyIntolerance.reaction.substance	example	SubstanceCode http://hl7.org/fhir/ValueSet/substance-code From the FHIR Standard
AllergyIntolerance.reaction.manifestation	example	SNOMEDCTClinicalFindings http://hl7.org/fhir/ValueSet/clinical-findings From the FHIR Standard
AllergyIntolerance.reaction.severity	required	AllergyIntoleranceSeverity http://hl7.org/fhir/ValueSet/reaction-event-severity|4.0.1 From the FHIR Standard
AllergyIntolerance.reaction.exposureRoute	example	SNOMEDCTRouteCodes http://hl7.org/fhir/ValueSet/route-codes From the FHIR Standard

Constraints

Id	Grade	Path(s)	Details	Requirements
ait-1	error	AllergyIntolerance	AllergyIntolerance.clinicalStatus SHALL be present if verificationStatus is not entered-in-error. : verificationStatus.coding.where(system = 'http://terminology.hl7.org/CodeSystem/allergyintolerance-verification' and code = 'entered-in-error').exists() or clinicalStatus.exists()
ait-2	error	AllergyIntolerance	AllergyIntolerance.clinicalStatus SHALL NOT be present if verification Status is entered-in-error : verificationStatus.coding.where(system = 'http://terminology.hl7.org/CodeSystem/allergyintolerance-verification' and code = 'entered-in-error').empty() or clinicalStatus.empty()
dom-2	error	AllergyIntolerance	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-3	error	AllergyIntolerance	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 : 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()
dom-4	error	AllergyIntolerance	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated : contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	AllergyIntolerance	If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty()
dom-6	best practice	AllergyIntolerance	A resource should have narrative for robust management : text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()

This structure is derived from AllergyIntolerance

Summary

Mandatory: 3 elements
Must-Support: 12 elements

Extensions

This structure refers to these extensions:

• http://hl7.org/fhir/StructureDefinition/allergyintolerance-certainty

Other representations of profile: CSV, Excel, Schematron