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

## Logical Model: EHDSMedicationStatement - Detailed Descriptions

Draft as of 2026-02-05

Definitions for the EHDSMedicationStatement 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. EHDSMedicationStatement
Definition | Statement about a single medication as part of a medication summary. Base definition for all types defined in FHIR type system.
Short | Medication statement 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. EHDSMedicationStatement.header
Definition | Basic metadata for this information
Short | Basic metadata for this information
Control | 1..1
Type | Base
4. EHDSMedicationStatement.header.subject
Definition | Patient/subject information
Short | Patient/subject information
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSMedicationStatement.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. EHDSMedicationStatement.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. EHDSMedicationStatement.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. EHDSMedicationStatement.header.status
Definition | Status of the resource or document
Short | Status of the resource or document
Control | 1..1
Type | CodeableConcept
14. EHDSMedicationStatement.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. EHDSMedicationStatement.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. EHDSMedicationStatement.medicationTreatmentStatus
Definition | The current status of the taking of medicine
Short | The current status of the taking of medicine
Control | 0..1
Type | CodeableConcept
Requirements | MyHealth@EU
20. EHDSMedicationStatement.medication
Definition | Describes the medicinal product.
Short | Describes the medicinal product.
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSMedication
Requirements | eHN PS Guideline, ISO IPS, MyHealth@EU
22. EHDSMedicationStatement.medicationReason
Definition | Coded reason for the use of the medication (typically diagnosis, or a procedure)
Short | Coded reason for the use of the medication (typically diagnosis, or a procedure)
Control | 0..*
Type | CodeableConcept
Requirements | eHN PS Guideline, ISO IPS, MyHealth@EU
24. EHDSMedicationStatement.medicationReasonText
Definition | Reason for the use of the medication (typically diagnosis, or a procedure) in free text.
Short | Reason for the use of the medication (typically diagnosis, or a procedure) in free text.
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, MyHealth@EU
26. EHDSMedicationStatement.intendedUseType
Definition | The type of intended use of the medication, e.g. prophylactic, therapeutic, diagnostic, anesthesia, etc.
Short | The type of intended use of the medication, e.g. prophylactic, therapeutic, diagnostic, anesthesia, etc.
Control | 0..1
Type | CodeableConcept
Requirements | eHN PS Guideline, MyHealth@EU
28. EHDSMedicationStatement.dosageInstructions
Definition | Details of how medication is/was taken or should be taken. This includes the number of units per intake and frequency of intake over a specified duration of time. Example: 1 tablet every 24h, for 10 days .
Short | Details of how medication is/was taken or should be taken
Control | 1..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDosaging
Requirements | eHN PS Guideline, ISO IPS, MyHealth@EU
30. EHDSMedicationStatement.periodOfUse
Definition | Period when patient took, is taking or is expected to take the medication. This information may be expressed using start and end date times OR indicating the duration. The first is used to indicate a specified interval (e.g., from March 15th, 2017); the latter for indicating a 'floating' period (e.g., 2 weeks). In case of unbounded period (continuous therapy), the end element will be valued with an exceptional value.
Short | Period when patient took, is taking or is expected to take the medication
Control | 0..1
Type | Period
Requirements | eHN PS Guideline, ISO IPS, MyHealth@EU

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

0. EHDSMedicationStatement
Definition | Statement about a single medication as part of a medication summary.
Short | Medication statement model
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSMedicationStatement.medicationTreatmentStatus
Definition | The current status of the taking of medicine
Short | The current status of the taking of medicine
Control | 0..1
Type | CodeableConcept
Requirements | MyHealth@EU
4. EHDSMedicationStatement.medication
Definition | Describes the medicinal product.
Short | Describes the medicinal product.
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSMedication
Requirements | eHN PS Guideline, ISO IPS, MyHealth@EU
6. EHDSMedicationStatement.medicationReason
Definition | Coded reason for the use of the medication (typically diagnosis, or a procedure)
Short | Coded reason for the use of the medication (typically diagnosis, or a procedure)
Control | 0..*
Type | CodeableConcept
Requirements | eHN PS Guideline, ISO IPS, MyHealth@EU
8. EHDSMedicationStatement.medicationReasonText
Definition | Reason for the use of the medication (typically diagnosis, or a procedure) in free text.
Short | Reason for the use of the medication (typically diagnosis, or a procedure) in free text.
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, MyHealth@EU
10. EHDSMedicationStatement.intendedUseType
Definition | The type of intended use of the medication, e.g. prophylactic, therapeutic, diagnostic, anesthesia, etc.
Short | The type of intended use of the medication, e.g. prophylactic, therapeutic, diagnostic, anesthesia, etc.
Control | 0..1
Type | CodeableConcept
Requirements | eHN PS Guideline, MyHealth@EU
12. EHDSMedicationStatement.dosageInstructions
Definition | Details of how medication is/was taken or should be taken. This includes the number of units per intake and frequency of intake over a specified duration of time. Example: 1 tablet every 24h, for 10 days .
Short | Details of how medication is/was taken or should be taken
Control | 1..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDosaging
Requirements | eHN PS Guideline, ISO IPS, MyHealth@EU
14. EHDSMedicationStatement.periodOfUse
Definition | Period when patient took, is taking or is expected to take the medication. This information may be expressed using start and end date times OR indicating the duration. The first is used to indicate a specified interval (e.g., from March 15th, 2017); the latter for indicating a 'floating' period (e.g., 2 weeks). In case of unbounded period (continuous therapy), the end element will be valued with an exceptional value.
Short | Period when patient took, is taking or is expected to take the medication
Control | 0..1
Type | Period
Requirements | eHN PS Guideline, ISO IPS, MyHealth@EU

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

0. EHDSMedicationStatement
Definition | Statement about a single medication as part of a medication summary.
Short | Medication statement model
Control | 0..*
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSMedicationStatement.header
Definition | Basic metadata for this information
Short | Basic metadata for this information
Control | 1..1
Type | Base
4. EHDSMedicationStatement.header.subject
Definition | Patient/subject information
Short | Patient/subject information
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient
6. EHDSMedicationStatement.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. EHDSMedicationStatement.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. EHDSMedicationStatement.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. EHDSMedicationStatement.header.status
Definition | Status of the resource or document
Short | Status of the resource or document
Control | 1..1
Type | CodeableConcept
14. EHDSMedicationStatement.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. EHDSMedicationStatement.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. EHDSMedicationStatement.medicationTreatmentStatus
Definition | The current status of the taking of medicine
Short | The current status of the taking of medicine
Control | 0..1
Type | CodeableConcept
Requirements | MyHealth@EU
20. EHDSMedicationStatement.medication
Definition | Describes the medicinal product.
Short | Describes the medicinal product.
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSMedication
Requirements | eHN PS Guideline, ISO IPS, MyHealth@EU
22. EHDSMedicationStatement.medicationReason
Definition | Coded reason for the use of the medication (typically diagnosis, or a procedure)
Short | Coded reason for the use of the medication (typically diagnosis, or a procedure)
Control | 0..*
Type | CodeableConcept
Requirements | eHN PS Guideline, ISO IPS, MyHealth@EU
24. EHDSMedicationStatement.medicationReasonText
Definition | Reason for the use of the medication (typically diagnosis, or a procedure) in free text.
Short | Reason for the use of the medication (typically diagnosis, or a procedure) in free text.
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, MyHealth@EU
26. EHDSMedicationStatement.intendedUseType
Definition | The type of intended use of the medication, e.g. prophylactic, therapeutic, diagnostic, anesthesia, etc.
Short | The type of intended use of the medication, e.g. prophylactic, therapeutic, diagnostic, anesthesia, etc.
Control | 0..1
Type | CodeableConcept
Requirements | eHN PS Guideline, MyHealth@EU
28. EHDSMedicationStatement.dosageInstructions
Definition | Details of how medication is/was taken or should be taken. This includes the number of units per intake and frequency of intake over a specified duration of time. Example: 1 tablet every 24h, for 10 days .
Short | Details of how medication is/was taken or should be taken
Control | 1..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDosaging
Requirements | eHN PS Guideline, ISO IPS, MyHealth@EU
30. EHDSMedicationStatement.periodOfUse
Definition | Period when patient took, is taking or is expected to take the medication. This information may be expressed using start and end date times OR indicating the duration. The first is used to indicate a specified interval (e.g., from March 15th, 2017); the latter for indicating a 'floating' period (e.g., 2 weeks). In case of unbounded period (continuous therapy), the end element will be valued with an exceptional value.
Short | Period when patient took, is taking or is expected to take the medication
Control | 0..1
Type | Period
Requirements | eHN PS Guideline, ISO IPS, MyHealth@EU