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: EHDSMedia - Detailed Descriptions

Draft as of 2026-02-05

Definitions for the EHDSMedia 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. EHDSMedia
Definition | EHDS refined base model for A photo, video, or audio recording acquired or used in healthcare. Base definition for all types defined in FHIR type system.
Short | Media 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. EHDSMedia.identifier
Definition | Image identifier
Short | Identifier
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 0..*
Type | Identifier
4. EHDSMedia.type
Definition | Classification of media as image, video, audio recording or other media type
Short | Type
Control | 0..1
Binding | HL7 MediaType
Type | CodeableConcept
6. EHDSMedia.modality
Definition | The type of acquisition equipment/process
Short | Modality
Control | 0..1
Binding | HL7 MediaModality
Type | CodeableConcept
8. EHDSMedia.view
Definition | The name of the imaging view e.g. Lateral or Antero-posterior
Short | View
Control | 0..1
Binding | HL7 MediaCollectionView/Projection
Type | CodeableConcept
10. EHDSMedia.subject[x]
Definition | Who/What this Media is a record of
Short | Subject
Control | 0..1
Type | Choice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSSpecimen
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
12. EHDSMedia.created[x]
Definition | The date and time(s) at which the media was collected.
Short | Created
Control | 0..1
Type | Choice of: dateTime, Period
[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
14. EHDSMedia.reason
Definition | Describes why the event occurred in coded or textual form.
Short | Reason
Control | 0..*
Binding | SNOMED CT
Type | CodeableConcept
16. EHDSMedia.bodySite
Definition | Observed body part, i.e. target site
Short | BodySite
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
18. EHDSMedia.deviceName
Definition | The name of the device / manufacturer of the device that was used to make the recording.
Short | Device name
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
20. EHDSMedia.device
Definition | The device used to collect the media.
Short | Device
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
22. EHDSMedia.content
Definition | The actual content of the media - inline or by direct reference to the media source file.
Short | Content
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSAttachment
24. EHDSMedia.note
Definition | Comments made about the media by the performer, subject or other participants.
Short | Note
Control | 0..*
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
26. EHDSMedia.performer[x]
Definition | Performer of the imaging acquisition process.
Short | Performer
Control | 0..*
Type | Choice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSOrganisation
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]

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

0. EHDSMedia
Definition | EHDS refined base model for A photo, video, or audio recording acquired or used in healthcare.
Short | Media model
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSMedia.identifier
Definition | Image identifier
Short | Identifier
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 0..*
Type | Identifier
4. EHDSMedia.type
Definition | Classification of media as image, video, audio recording or other media type
Short | Type
Control | 0..1
Binding | HL7 MediaType
Type | CodeableConcept
6. EHDSMedia.modality
Definition | The type of acquisition equipment/process
Short | Modality
Control | 0..1
Binding | HL7 MediaModality
Type | CodeableConcept
8. EHDSMedia.view
Definition | The name of the imaging view e.g. Lateral or Antero-posterior
Short | View
Control | 0..1
Binding | HL7 MediaCollectionView/Projection
Type | CodeableConcept
10. EHDSMedia.subject[x]
Definition | Who/What this Media is a record of
Short | Subject
Control | 0..1
Type | Choice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSSpecimen
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
12. EHDSMedia.created[x]
Definition | The date and time(s) at which the media was collected.
Short | Created
Control | 0..1
Type | Choice of: dateTime, Period
[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
14. EHDSMedia.reason
Definition | Describes why the event occurred in coded or textual form.
Short | Reason
Control | 0..*
Binding | SNOMED CT
Type | CodeableConcept
16. EHDSMedia.bodySite
Definition | Observed body part, i.e. target site
Short | BodySite
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
18. EHDSMedia.deviceName
Definition | The name of the device / manufacturer of the device that was used to make the recording.
Short | Device name
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
20. EHDSMedia.device
Definition | The device used to collect the media.
Short | Device
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
22. EHDSMedia.content
Definition | The actual content of the media - inline or by direct reference to the media source file.
Short | Content
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSAttachment
24. EHDSMedia.note
Definition | Comments made about the media by the performer, subject or other participants.
Short | Note
Control | 0..*
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
26. EHDSMedia.performer[x]
Definition | Performer of the imaging acquisition process.
Short | Performer
Control | 0..*
Type | Choice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSOrganisation
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]

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

0. EHDSMedia
Definition | EHDS refined base model for A photo, video, or audio recording acquired or used in healthcare.
Short | Media model
Control | 0..*
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSMedia.identifier
Definition | Image identifier
Short | Identifier
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 0..*
Type | Identifier
4. EHDSMedia.type
Definition | Classification of media as image, video, audio recording or other media type
Short | Type
Control | 0..1
Binding | HL7 MediaType
Type | CodeableConcept
6. EHDSMedia.modality
Definition | The type of acquisition equipment/process
Short | Modality
Control | 0..1
Binding | HL7 MediaModality
Type | CodeableConcept
8. EHDSMedia.view
Definition | The name of the imaging view e.g. Lateral or Antero-posterior
Short | View
Control | 0..1
Binding | HL7 MediaCollectionView/Projection
Type | CodeableConcept
10. EHDSMedia.subject[x]
Definition | Who/What this Media is a record of
Short | Subject
Control | 0..1
Type | Choice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSSpecimen
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
12. EHDSMedia.created[x]
Definition | The date and time(s) at which the media was collected.
Short | Created
Control | 0..1
Type | Choice of: dateTime, Period
[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
14. EHDSMedia.reason
Definition | Describes why the event occurred in coded or textual form.
Short | Reason
Control | 0..*
Binding | SNOMED CT
Type | CodeableConcept
16. EHDSMedia.bodySite
Definition | Observed body part, i.e. target site
Short | BodySite
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
18. EHDSMedia.deviceName
Definition | The name of the device / manufacturer of the device that was used to make the recording.
Short | Device name
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
20. EHDSMedia.device
Definition | The device used to collect the media.
Short | Device
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
22. EHDSMedia.content
Definition | The actual content of the media - inline or by direct reference to the media source file.
Short | Content
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSAttachment
24. EHDSMedia.note
Definition | Comments made about the media by the performer, subject or other participants.
Short | Note
Control | 0..*
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
26. EHDSMedia.performer[x]
Definition | Performer of the imaging acquisition process.
Short | Performer
Control | 0..*
Type | Choice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSOrganisation
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]