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/Xt-EHR/xt-ehr-common/ and changes regularly. See the Directory of published versions
| Draft as of 2026-02-05 |
Definitions for the EHDSSubstanceUse logical model.
Guidance on how to interpret the contents of this table can be foundhere
| 0. EHDSSubstanceUse | |
| Definition | Statement about using a substance (such as tobacco, alcohol, drugs, etc). Base definition for all types defined in FHIR type system. |
| Short | Substance use 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. EHDSSubstanceUse.header | |
| Definition | Basic metadata for this information |
| Short | Basic metadata for this information |
| Control | 1..1 |
| Type | Base |
| 4. EHDSSubstanceUse.header.subject | |
| Definition | Patient/subject information |
| Short | Patient/subject information |
| Control | 1..1 |
| Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient |
| 6. EHDSSubstanceUse.header.identifier | |
| Definition | Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries). |
| Short | Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries). |
| Note | This is a business identifier, not a resource identifier (see discussion) |
| Control | 0..* |
| Type | Identifier |
| 8. EHDSSubstanceUse.header.author[x] | |
| Definition | Author(s) responsible for the provided information. The exact role of the responsible author varies across use cases and is specific to individual models. |
| Short | Author(s) responsible for the provided information. |
| Control | 0..* |
| 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] |
| 10. EHDSSubstanceUse.header.date | |
| Definition | Date and optionally time of authoring/issuing |
| Short | Date and optionally time of authoring/issuing |
| Control | 0..1 |
| Type | dateTime |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 12. EHDSSubstanceUse.header.status | |
| Definition | Status of the resource or document |
| Short | Status of the patient’s alcohol use. |
| Control | 1..1 |
| Binding | SNOMED CT |
| Type | CodeableConcept |
| 14. EHDSSubstanceUse.header.source | |
| Definition | Source of information (e.g. patient, patient's proxy). Used in case the patient has authored the information or the author has submitted patient-stated information. |
| Short | Source of information (e.g. patient, patient's proxy). Used in case the patient has authored the information or the author has submitted patient-stated information. |
| Control | 0..1 |
| Type | CodeableConcept |
| 16. EHDSSubstanceUse.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 |
| 18. EHDSSubstanceUse.observationPeriod | |
| Definition | Time period for which this observation about substance use is applicable |
| Short | Time period for which this observation about substance use is applicable |
| Control | 0..1 |
| Type | Period |
| 20. EHDSSubstanceUse.frequencyAndQuantity | |
| Definition | The extent of the patient’s alcohol use in units of alcohol per time period. |
| Short | The extent of the patient’s alcohol use in units of alcohol per time period. |
| Control | 0..1 |
| Type | Base |
| 22. EHDSSubstanceUse.frequencyAndQuantity.quantity | |
| Definition | Quantity (volume per time unit). |
| Short | Quantity (volume per time unit). |
| Control | 1..1 |
| Type | Quantity |
| 24. EHDSSubstanceUse.frequencyAndQuantity.periodOfUse | |
| Definition | Time period of substance use. |
| Short | Time period of substance use. |
| Control | 0..1 |
| Type | Period |
| 26. EHDSSubstanceUse.substanceType | |
| Definition | Type of substance |
| Short | Type of substance |
| Control | 0..1 |
| Binding | SNOMED CT |
| Type | CodeableConcept |
| 28. EHDSSubstanceUse.routeOfAdministration | |
| Definition | Route(s) of administration |
| Short | Route(s) of administration |
| Control | 0..* |
| Binding | EDQM |
| Type | CodeableConcept |
| 30. EHDSSubstanceUse.note | |
| Definition | Textual comment. |
| Short | Textual comment. |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
Guidance on how to interpret the contents of this table can be foundhere
| 0. EHDSSubstanceUse | |
| Definition | Statement about using a substance (such as tobacco, alcohol, drugs, etc). |
| Short | Substance use model |
| Logical Model | Instances of this logical model are not marked to be the target of a Reference |
| 2. EHDSSubstanceUse.header | |
| 4. EHDSSubstanceUse.header.status | |
| Short | Status of the patient’s alcohol use. |
| Binding | SNOMED CT |
| 6. EHDSSubstanceUse.observationPeriod | |
| Definition | Time period for which this observation about substance use is applicable |
| Short | Time period for which this observation about substance use is applicable |
| Control | 0..1 |
| Type | Period |
| 8. EHDSSubstanceUse.frequencyAndQuantity | |
| Definition | The extent of the patient’s alcohol use in units of alcohol per time period. |
| Short | The extent of the patient’s alcohol use in units of alcohol per time period. |
| Control | 0..1 |
| Type | Base |
| 10. EHDSSubstanceUse.frequencyAndQuantity.quantity | |
| Definition | Quantity (volume per time unit). |
| Short | Quantity (volume per time unit). |
| Control | 1..1 |
| Type | Quantity |
| 12. EHDSSubstanceUse.frequencyAndQuantity.periodOfUse | |
| Definition | Time period of substance use. |
| Short | Time period of substance use. |
| Control | 0..1 |
| Type | Period |
| 14. EHDSSubstanceUse.substanceType | |
| Definition | Type of substance |
| Short | Type of substance |
| Control | 0..1 |
| Binding | SNOMED CT |
| Type | CodeableConcept |
| 16. EHDSSubstanceUse.routeOfAdministration | |
| Definition | Route(s) of administration |
| Short | Route(s) of administration |
| Control | 0..* |
| Binding | EDQM |
| Type | CodeableConcept |
| 18. EHDSSubstanceUse.note | |
| Definition | Textual comment. |
| Short | Textual comment. |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
Guidance on how to interpret the contents of this table can be foundhere
| 0. EHDSSubstanceUse | |
| Definition | Statement about using a substance (such as tobacco, alcohol, drugs, etc). |
| Short | Substance use model |
| Control | 0..* |
| Is Modifier | false |
| Logical Model | Instances of this logical model are not marked to be the target of a Reference |
| 2. EHDSSubstanceUse.header | |
| Definition | Basic metadata for this information |
| Short | Basic metadata for this information |
| Control | 1..1 |
| Type | Base |
| 4. EHDSSubstanceUse.header.subject | |
| Definition | Patient/subject information |
| Short | Patient/subject information |
| Control | 1..1 |
| Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient |
| 6. EHDSSubstanceUse.header.identifier | |
| Definition | Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries). |
| Short | Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries). |
| Note | This is a business identifier, not a resource identifier (see discussion) |
| Control | 0..* |
| Type | Identifier |
| 8. EHDSSubstanceUse.header.author[x] | |
| Definition | Author(s) responsible for the provided information. The exact role of the responsible author varies across use cases and is specific to individual models. |
| Short | Author(s) responsible for the provided information. |
| Control | 0..* |
| 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] |
| 10. EHDSSubstanceUse.header.date | |
| Definition | Date and optionally time of authoring/issuing |
| Short | Date and optionally time of authoring/issuing |
| Control | 0..1 |
| Type | dateTime |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| 12. EHDSSubstanceUse.header.status | |
| Definition | Status of the resource or document |
| Short | Status of the patient’s alcohol use. |
| Control | 1..1 |
| Binding | SNOMED CT |
| Type | CodeableConcept |
| 14. EHDSSubstanceUse.header.source | |
| Definition | Source of information (e.g. patient, patient's proxy). Used in case the patient has authored the information or the author has submitted patient-stated information. |
| Short | Source of information (e.g. patient, patient's proxy). Used in case the patient has authored the information or the author has submitted patient-stated information. |
| Control | 0..1 |
| Type | CodeableConcept |
| 16. EHDSSubstanceUse.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 |
| 18. EHDSSubstanceUse.observationPeriod | |
| Definition | Time period for which this observation about substance use is applicable |
| Short | Time period for which this observation about substance use is applicable |
| Control | 0..1 |
| Type | Period |
| 20. EHDSSubstanceUse.frequencyAndQuantity | |
| Definition | The extent of the patient’s alcohol use in units of alcohol per time period. |
| Short | The extent of the patient’s alcohol use in units of alcohol per time period. |
| Control | 0..1 |
| Type | Base |
| 22. EHDSSubstanceUse.frequencyAndQuantity.quantity | |
| Definition | Quantity (volume per time unit). |
| Short | Quantity (volume per time unit). |
| Control | 1..1 |
| Type | Quantity |
| 24. EHDSSubstanceUse.frequencyAndQuantity.periodOfUse | |
| Definition | Time period of substance use. |
| Short | Time period of substance use. |
| Control | 0..1 |
| Type | Period |
| 26. EHDSSubstanceUse.substanceType | |
| Definition | Type of substance |
| Short | Type of substance |
| Control | 0..1 |
| Binding | SNOMED CT |
| Type | CodeableConcept |
| 28. EHDSSubstanceUse.routeOfAdministration | |
| Definition | Route(s) of administration |
| Short | Route(s) of administration |
| Control | 0..* |
| Binding | EDQM |
| Type | CodeableConcept |
| 30. EHDSSubstanceUse.note | |
| Definition | Textual comment. |
| Short | Textual comment. |
| Control | 0..1 |
| Type | string |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |