EHDS Logical Information Models
0.2.1 - qa-preview

EHDS Logical Information Models, published by Xt-EHR. This guide is not an authorized publication; it is the continuous build for version 0.2.1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/costateixeira/xt-ehr-common/ and changes regularly. See the Directory of published versions

## Logical Model: EHDSAllergyIntolerance - Detailed Descriptions

Draft as of 2025-12-03

Definitions for the EHDSAllergyIntolerance logical model.

- Key Elements Table
- Differential Elements Table
- Snapshot Elements Table

Guidance on how to interpret the contents of this table can be foundhere

0. EHDSAllergyIntolerance
Definition | EHDS refined base model for allergy/intolerance Base definition for all types defined in FHIR type system.
Short | Allergy intolerance modelBase for all types and resources
Control | 0..*
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSAllergyIntolerance.header
Definition | Common header for all patient-related data
Short | Common header for all patient-related data
Control | 1..1
Type | Base
4. EHDSAllergyIntolerance.header.subject
Definition | Patient/subject information
Short | Patient/subject information
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSAllergyIntolerance.header.identifier
Definition | Business identifier for the object
Short | Business identifier for the object
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 0..*
Type | Identifier
8. EHDSAllergyIntolerance.header.authorship
Definition | Resource authoring details
Short | Resource authoring details
Control | 1..*
Type | Base
10. EHDSAllergyIntolerance.header.authorship.author[x]
Definition | Author(s) by whom the resource was/were authored. Multiple authors could be provided.
Short | Author(s) by whom the resource was/were authored. Multiple authors could be provided.
Control | 1..1
Type | Choice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSOrganisation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
12. EHDSAllergyIntolerance.header.authorship.datetime
Definition | Date and time of authoring/issuing
Short | Date and time of authoring/issuing
Control | 1..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
14. EHDSAllergyIntolerance.header.lastUpdate
Definition | Date and time of the last update to the resource (may be used for technical corrections).
Short | Date and time of the last update to the resource (may be used for technical corrections).
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
16. EHDSAllergyIntolerance.header.status
Definition | Status of the resource or document
Short | Status of the resource or document
Control | 1..1
Type | CodeableConcept
18. EHDSAllergyIntolerance.header.statusReason[x]
Definition | Reason for the current status of the resource.
Short | Reason for the current status of the resource.
Control | 0..1
Type | Choice of: CodeableConcept, string
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
20. EHDSAllergyIntolerance.header.language
Definition | Language in which the resource is written. Language is expressed by the IETF language tag.
Short | Language in which the resource is written. Language is expressed by the IETF language tag.
Control | 0..1
Binding | BCP 47
Type | CodeableConcept
22. EHDSAllergyIntolerance.description
Definition | Textual description of the allergy or intolerance
Short | Textual description of the allergy or intolerance
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN PS Guideline, ISO IPS
24. EHDSAllergyIntolerance.reaction
Definition | Adverse Reaction Events linked to exposure to substance.
Short | Adverse Reaction Events linked to exposure to substance.
Control | 0..*
Type | Base
Requirements | ISO IPS (explicit), implicitly in eHN PS Guideline, MH@EU
26. EHDSAllergyIntolerance.reaction.manifestation
Definition | Description of the clinical manifestation of the allergic reaction. Example: anaphylactic shock, angioedema. (the clinical manifestation also gives information about the severity of the observed reaction).
Short | Description of the clinical manifestation of the allergic reaction. Example: anaphylactic shock, angioedema. (the clinical manifestation also gives information about the severity of the observed reaction).
Control | 0..*
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.5 eHDSIIllnessandDisorder (ICD-10, alternative in MH@EU); 1.3.6.1.4.1.12559.11.10.1.3.1.42.11 eHDSIReactionAllergy (SCT, alternative in MH@EU); ICD-11 MMS
Type | CodeableConcept
Requirements | The element is present in eHN PS GL, MyHealth@EU specifications and ISO IPS. Element name and description is taken from eHN PS GL. Cardinality in MyHealth@EU for this element, used here, is one manifestation per severity and onset, while the cardinality in FHIR IPS IG allows multiple manifestations per severity and onset.
28. EHDSAllergyIntolerance.reaction.severity
Definition | Severity of the clinical manifestation of the allergic reaction.
Short | Severity of the clinical manifestation of the allergic reaction.
Control | 0..1
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.13 eHDSISeverity (SCT, used in MH@EU); http://hl7.org/fhir/ValueSet/reaction-event-severity (HL7, Required in HL7 FHIR)
Type | CodeableConcept
Requirements | The element is present in eHN PS GL, MyHealth@EU specifications and ISO IPS. Element name and description is taken from eHN PS GL.
30. EHDSAllergyIntolerance.agentOrAllergen
Definition | A specific allergen or other agent/substance (drug, food, chemical agent, etc.) to which the patient has an adverse reaction propensity.
Short | A specific allergen or other agent/substance (drug, food, chemical agent, etc.) to which the patient has an adverse reaction propensity.
Control | 1..1
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.24 eHDSIActiveIngredient (ATC, used in MH@EU); 1.3.6.1.4.1.12559.11.10.1.3.1.42.61 eHDSISubstance (EMA SMS, used in MH@EU); 1.3.6.1.4.1.12559.11.10.1.3.1.42.19 eHDSIAllergenNoDrug (SCT, used in MH@EU); ICD-11 Allergens
Type | CodeableConcept
Requirements | eHN PS Guideline, MyHealth@EU, ISO IPS
32. EHDSAllergyIntolerance.typeOfPropensity
Definition | This element describes whether this condition refers to an allergy, non-allergy intolerance, or unknown class of intolerance (not known to be allergy or intolerance)
Short | This element describes whether this condition refers to an allergy, non-allergy intolerance, or unknown class of intolerance (not known to be allergy or intolerance)
Control | 0..1
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.18 eHDSIAdverseEventType (SCT, used in MH@EU); http://hl7.org/fhir/ValueSet/allergy-intolerance-type (HL7, required in HL7 FHIR)
Type | CodeableConcept
Requirements | eHN PS Guideline, MyHealth@EU
34. EHDSAllergyIntolerance.criticality
Definition | Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance.
Short | Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance.
Control | 0..1
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.57 eHDSICriticality (HL7, used in MH@EU); http://hl7.org/fhir/ValueSet/allergy-intolerance-criticality (HL7, required in HL7 FHIR)
Type | CodeableConcept
Requirements | eHN PS Guideline, MyHealth@EU, ISO IPS
36. EHDSAllergyIntolerance.onsetDate
Definition | When allergy or intolerance was identified
Short | When allergy or intolerance was identified
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | MyHealth@EU, ISO IPS
38. EHDSAllergyIntolerance.endDate
Definition | Date of resolution of the allergy (e.g. when the clinician deemed there is no longer any need to track the underlying condition)
Short | Date of resolution of the allergy (e.g. when the clinician deemed there is no longer any need to track the underlying condition)
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN PS Guideline, MyHealth@EU, ISO IPS
40. EHDSAllergyIntolerance.certainty
Definition | Assertion about the certainty associated with a propensity, or potential risk, of a reaction to the identified substance. Diagnostic and /or clinical evidence of condition
Short | Assertion about the certainty associated with a propensity, or potential risk, of a reaction to the identified substance. Diagnostic and /or clinical evidence of condition
Control | 0..1
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.58 eHDSIAllergyCertainty (HL7, used in MH@EU) ; http://hl7.org/fhir/ValueSet/allergyintolerance-verification (HL7, required in HL7 FHIR)
Type | CodeableConcept
Requirements | eHN PS Guideline, MyHealth@EU, ISO IPS
42. EHDSAllergyIntolerance.status
Definition | Current status of the allergy or intolerance, for example, whether it is active, in remission, resolved, etc.
Short | Current status of the allergy or intolerance, for example, whether it is active, in remission, resolved, etc.
Control | 0..1
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.59 eHDSIAllergyStatus (HL7, used in MH@EU); http://hl7.org/fhir/ValueSet/allergyintolerance-clinical (HL7, required in HL7 FHIR)
Type | CodeableConcept
Requirements | eHN PS Guideline, MyHealth@EU, ISO IPS
44. EHDSAllergyIntolerance.reaction.date
Definition | Date and time of allergy manifestation
Short | Date and time of allergy manifestation
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
46. EHDSAllergyIntolerance.reaction.onsetDate
Definition | Date of the observation of the reaction
Short | Date of the observation of the reaction
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | The element is present in eHN PS GL. Element name and description is taken from eHN PS GL.

Guidance on how to interpret the contents of this table can be foundhere

0. EHDSAllergyIntolerance
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSAllergyIntolerance.reaction
4. EHDSAllergyIntolerance.reaction.date
Definition | Date and time of allergy manifestation
Short | Date and time of allergy manifestation
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
6. EHDSAllergyIntolerance.reaction.onsetDate
Definition | Date of the observation of the reaction
Short | Date of the observation of the reaction
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | The element is present in eHN PS GL. Element name and description is taken from eHN PS GL.

Guidance on how to interpret the contents of this table can be foundhere

0. EHDSAllergyIntolerance
Definition | EHDS refined base model for allergy/intolerance
Short | Allergy intolerance model
Control | 0..*
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSAllergyIntolerance.header
Definition | Common header for all patient-related data
Short | Common header for all patient-related data
Control | 1..1
Type | Base
4. EHDSAllergyIntolerance.header.subject
Definition | Patient/subject information
Short | Patient/subject information
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSAllergyIntolerance.header.identifier
Definition | Business identifier for the object
Short | Business identifier for the object
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 0..*
Type | Identifier
8. EHDSAllergyIntolerance.header.authorship
Definition | Resource authoring details
Short | Resource authoring details
Control | 1..*
Type | Base
10. EHDSAllergyIntolerance.header.authorship.author[x]
Definition | Author(s) by whom the resource was/were authored. Multiple authors could be provided.
Short | Author(s) by whom the resource was/were authored. Multiple authors could be provided.
Control | 1..1
Type | Choice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSOrganisation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
12. EHDSAllergyIntolerance.header.authorship.datetime
Definition | Date and time of authoring/issuing
Short | Date and time of authoring/issuing
Control | 1..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
14. EHDSAllergyIntolerance.header.lastUpdate
Definition | Date and time of the last update to the resource (may be used for technical corrections).
Short | Date and time of the last update to the resource (may be used for technical corrections).
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
16. EHDSAllergyIntolerance.header.status
Definition | Status of the resource or document
Short | Status of the resource or document
Control | 1..1
Type | CodeableConcept
18. EHDSAllergyIntolerance.header.statusReason[x]
Definition | Reason for the current status of the resource.
Short | Reason for the current status of the resource.
Control | 0..1
Type | Choice of: CodeableConcept, string
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
20. EHDSAllergyIntolerance.header.language
Definition | Language in which the resource is written. Language is expressed by the IETF language tag.
Short | Language in which the resource is written. Language is expressed by the IETF language tag.
Control | 0..1
Binding | BCP 47
Type | CodeableConcept
22. EHDSAllergyIntolerance.description
Definition | Textual description of the allergy or intolerance
Short | Textual description of the allergy or intolerance
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN PS Guideline, ISO IPS
24. EHDSAllergyIntolerance.reaction
Definition | Adverse Reaction Events linked to exposure to substance.
Short | Adverse Reaction Events linked to exposure to substance.
Control | 0..*
Type | Base
Requirements | ISO IPS (explicit), implicitly in eHN PS Guideline, MH@EU
26. EHDSAllergyIntolerance.reaction.manifestation
Definition | Description of the clinical manifestation of the allergic reaction. Example: anaphylactic shock, angioedema. (the clinical manifestation also gives information about the severity of the observed reaction).
Short | Description of the clinical manifestation of the allergic reaction. Example: anaphylactic shock, angioedema. (the clinical manifestation also gives information about the severity of the observed reaction).
Control | 0..*
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.5 eHDSIIllnessandDisorder (ICD-10, alternative in MH@EU); 1.3.6.1.4.1.12559.11.10.1.3.1.42.11 eHDSIReactionAllergy (SCT, alternative in MH@EU); ICD-11 MMS
Type | CodeableConcept
Requirements | The element is present in eHN PS GL, MyHealth@EU specifications and ISO IPS. Element name and description is taken from eHN PS GL. Cardinality in MyHealth@EU for this element, used here, is one manifestation per severity and onset, while the cardinality in FHIR IPS IG allows multiple manifestations per severity and onset.
28. EHDSAllergyIntolerance.reaction.severity
Definition | Severity of the clinical manifestation of the allergic reaction.
Short | Severity of the clinical manifestation of the allergic reaction.
Control | 0..1
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.13 eHDSISeverity (SCT, used in MH@EU); http://hl7.org/fhir/ValueSet/reaction-event-severity (HL7, Required in HL7 FHIR)
Type | CodeableConcept
Requirements | The element is present in eHN PS GL, MyHealth@EU specifications and ISO IPS. Element name and description is taken from eHN PS GL.
30. EHDSAllergyIntolerance.agentOrAllergen
Definition | A specific allergen or other agent/substance (drug, food, chemical agent, etc.) to which the patient has an adverse reaction propensity.
Short | A specific allergen or other agent/substance (drug, food, chemical agent, etc.) to which the patient has an adverse reaction propensity.
Control | 1..1
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.24 eHDSIActiveIngredient (ATC, used in MH@EU); 1.3.6.1.4.1.12559.11.10.1.3.1.42.61 eHDSISubstance (EMA SMS, used in MH@EU); 1.3.6.1.4.1.12559.11.10.1.3.1.42.19 eHDSIAllergenNoDrug (SCT, used in MH@EU); ICD-11 Allergens
Type | CodeableConcept
Requirements | eHN PS Guideline, MyHealth@EU, ISO IPS
32. EHDSAllergyIntolerance.typeOfPropensity
Definition | This element describes whether this condition refers to an allergy, non-allergy intolerance, or unknown class of intolerance (not known to be allergy or intolerance)
Short | This element describes whether this condition refers to an allergy, non-allergy intolerance, or unknown class of intolerance (not known to be allergy or intolerance)
Control | 0..1
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.18 eHDSIAdverseEventType (SCT, used in MH@EU); http://hl7.org/fhir/ValueSet/allergy-intolerance-type (HL7, required in HL7 FHIR)
Type | CodeableConcept
Requirements | eHN PS Guideline, MyHealth@EU
34. EHDSAllergyIntolerance.criticality
Definition | Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance.
Short | Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance.
Control | 0..1
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.57 eHDSICriticality (HL7, used in MH@EU); http://hl7.org/fhir/ValueSet/allergy-intolerance-criticality (HL7, required in HL7 FHIR)
Type | CodeableConcept
Requirements | eHN PS Guideline, MyHealth@EU, ISO IPS
36. EHDSAllergyIntolerance.onsetDate
Definition | When allergy or intolerance was identified
Short | When allergy or intolerance was identified
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | MyHealth@EU, ISO IPS
38. EHDSAllergyIntolerance.endDate
Definition | Date of resolution of the allergy (e.g. when the clinician deemed there is no longer any need to track the underlying condition)
Short | Date of resolution of the allergy (e.g. when the clinician deemed there is no longer any need to track the underlying condition)
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | eHN PS Guideline, MyHealth@EU, ISO IPS
40. EHDSAllergyIntolerance.certainty
Definition | Assertion about the certainty associated with a propensity, or potential risk, of a reaction to the identified substance. Diagnostic and /or clinical evidence of condition
Short | Assertion about the certainty associated with a propensity, or potential risk, of a reaction to the identified substance. Diagnostic and /or clinical evidence of condition
Control | 0..1
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.58 eHDSIAllergyCertainty (HL7, used in MH@EU) ; http://hl7.org/fhir/ValueSet/allergyintolerance-verification (HL7, required in HL7 FHIR)
Type | CodeableConcept
Requirements | eHN PS Guideline, MyHealth@EU, ISO IPS
42. EHDSAllergyIntolerance.status
Definition | Current status of the allergy or intolerance, for example, whether it is active, in remission, resolved, etc.
Short | Current status of the allergy or intolerance, for example, whether it is active, in remission, resolved, etc.
Control | 0..1
Binding | 1.3.6.1.4.1.12559.11.10.1.3.1.42.59 eHDSIAllergyStatus (HL7, used in MH@EU); http://hl7.org/fhir/ValueSet/allergyintolerance-clinical (HL7, required in HL7 FHIR)
Type | CodeableConcept
Requirements | eHN PS Guideline, MyHealth@EU, ISO IPS
44. EHDSAllergyIntolerance.reaction.date
Definition | Date and time of allergy manifestation
Short | Date and time of allergy manifestation
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
46. EHDSAllergyIntolerance.reaction.onsetDate
Definition | Date of the observation of the reaction
Short | Date of the observation of the reaction
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Requirements | The element is present in eHN PS GL. Element name and description is taken from eHN PS GL.