EHDS Logical Information Models
0.4.0 - draft

EHDS Logical Information Models, published by Xt-EHR. This guide is not an authorized publication; it is the continuous build for version 0.4.0 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: EHDSSpecimen - Detailed Descriptions

Draft as of 2026-02-23

Definitions for the EHDSSpecimen 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. EHDSSpecimen
Definition | Model for a specimen to be used for analysis Base definition for all types defined in FHIR type system.
Short | Specimen 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. EHDSSpecimen.identifier
Definition | An identifier of the specimen which is unique within in a defined scope. Example: identifier assigned by ordering system, identifier assigned by laboratory etc. Multiple identifiers can be used.
Short | An identifier of the specimen which is unique within in a defined scope. Example: identifier assigned by ordering system, identifier assigned by laboratory etc. Multiple identifiers can be used.
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 1..*
Type | Identifier
4. EHDSSpecimen.status
Definition | Availability of the specimen.
Short | Availability of the specimen.
Control | 0..1
Binding | HL7 specimen-status
Type | CodeableConcept
6. EHDSSpecimen.type
Definition | The kind of material that forms the Specimen.
Short | The kind of material that forms the Specimen.
Control | 0..1
Binding | SNOMED CT
Type | CodeableConcept
8. EHDSSpecimen.specimenSource[x]
Definition | Where the specimen came from. This may be from patient(s), from a location (e.g., the source of an environmental sample), or a device. Additional types of specimen may be allowed in implementations.
Short | Where the specimen came from. This may be from patient(s), from a location (e.g., the source of an environmental sample), or a device. Additional types of specimen may be allowed in implementations.
Control | 0..1
Type | Choice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLocation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
10. EHDSSpecimen.parentSpecimen
Definition | Specimen from which this specimen originated
Short | Specimen from which this specimen originated
Control | 0..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSSpecimen
12. EHDSSpecimen.request
Definition | Why the specimen ws collected
Short | Why the specimen ws collected
Control | 0..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSServiceRequest
14. EHDSSpecimen.combined
Definition | This element signifies if the specimen is part of a group or pooled.
Short | This element signifies if the specimen is part of a group or pooled.
Control | 0..1
Binding | HL7 specimen-combined
Type | CodeableConcept
16. EHDSSpecimen.collection
Definition | Collection details
Short | Collection details
Control | 0..*
Type | Base
18. EHDSSpecimen.collection.performer[x]
Definition | Person or organisation who collected the specimen
Short | Person or organisation who collected the specimen
Control | 0..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/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSRelatedPerson
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
20. EHDSSpecimen.collection.collected[x]
Definition | The period or date and time of specimen collection.
Short | The period or date and time of specimen collection.
Control | 1..1
Type | Choice of: Period, dateTime
[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
22. EHDSSpecimen.collection.quantity
Definition | The quantity of specimen collected
Short | The quantity of specimen collected
Control | 0..1
Type | Quantity
24. EHDSSpecimen.collection.method
Definition | If relevant for the results, the method of obtaining the specimen.
Short | If relevant for the results, the method of obtaining the specimen.
Control | 0..1
Binding | SNOMED CT
Type | CodeableConcept
26. EHDSSpecimen.collection.device
Definition | Device used to perform specimen collection
Short | Device used to perform specimen collection
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
28. EHDSSpecimen.collection.bodySite
Definition | Anatomic location (e.g. body location, laterality and other details) where the material is collected, e.g. Elbow, left
Short | Anatomic location (e.g. body location, laterality and other details) where the material is collected, e.g. Elbow, left
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
30. EHDSSpecimen.receivedDate
Definition | Date and time when specimen is received by the testing laboratory.
Short | Date and time when specimen is received by the testing laboratory.
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
32. EHDSSpecimen.container
Definition | The container holding the specimen.
Short | The container holding the specimen.
Control | 0..*
Type | Base
34. EHDSSpecimen.container.specimenQuantity
Definition | Quantity of specimen within container
Short | Quantity of specimen within container
Control | 0..1
Type | Quantity
36. EHDSSpecimen.container.containerDevice
Definition | The device resource for the the container holding the specimen.
Short | The device resource for the the container holding the specimen.
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
38. EHDSSpecimen.condition
Definition | State of the specimen. State of the speeimen should be alligned with dataAbsentReason element of the Observatiom model.
Short | State of the specimen. State of the speeimen should be alligned with dataAbsentReason element of the Observatiom model.
Control | 0..*
Binding | HL7 specimenCondition
Type | CodeableConcept
40. EHDSSpecimen.note
Definition | To communicate any details or issues about the specimen or during the specimen collection. (for example: broken vial, sent with patient, frozen).
Short | To communicate any details or issues about the specimen or during the specimen collection. (for example: broken vial, sent with patient, frozen).
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. EHDSSpecimen
Definition | Model for a specimen to be used for analysis
Short | Specimen model
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSSpecimen.identifier
Definition | An identifier of the specimen which is unique within in a defined scope. Example: identifier assigned by ordering system, identifier assigned by laboratory etc. Multiple identifiers can be used.
Short | An identifier of the specimen which is unique within in a defined scope. Example: identifier assigned by ordering system, identifier assigned by laboratory etc. Multiple identifiers can be used.
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 1..*
Type | Identifier
4. EHDSSpecimen.status
Definition | Availability of the specimen.
Short | Availability of the specimen.
Control | 0..1
Binding | HL7 specimen-status
Type | CodeableConcept
6. EHDSSpecimen.type
Definition | The kind of material that forms the Specimen.
Short | The kind of material that forms the Specimen.
Control | 0..1
Binding | SNOMED CT
Type | CodeableConcept
8. EHDSSpecimen.specimenSource[x]
Definition | Where the specimen came from. This may be from patient(s), from a location (e.g., the source of an environmental sample), or a device. Additional types of specimen may be allowed in implementations.
Short | Where the specimen came from. This may be from patient(s), from a location (e.g., the source of an environmental sample), or a device. Additional types of specimen may be allowed in implementations.
Control | 0..1
Type | Choice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLocation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
10. EHDSSpecimen.parentSpecimen
Definition | Specimen from which this specimen originated
Short | Specimen from which this specimen originated
Control | 0..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSSpecimen
12. EHDSSpecimen.request
Definition | Why the specimen ws collected
Short | Why the specimen ws collected
Control | 0..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSServiceRequest
14. EHDSSpecimen.combined
Definition | This element signifies if the specimen is part of a group or pooled.
Short | This element signifies if the specimen is part of a group or pooled.
Control | 0..1
Binding | HL7 specimen-combined
Type | CodeableConcept
16. EHDSSpecimen.collection
Definition | Collection details
Short | Collection details
Control | 0..*
Type | Base
18. EHDSSpecimen.collection.performer[x]
Definition | Person or organisation who collected the specimen
Short | Person or organisation who collected the specimen
Control | 0..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/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSRelatedPerson
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
20. EHDSSpecimen.collection.collected[x]
Definition | The period or date and time of specimen collection.
Short | The period or date and time of specimen collection.
Control | 1..1
Type | Choice of: Period, dateTime
[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
22. EHDSSpecimen.collection.quantity
Definition | The quantity of specimen collected
Short | The quantity of specimen collected
Control | 0..1
Type | Quantity
24. EHDSSpecimen.collection.method
Definition | If relevant for the results, the method of obtaining the specimen.
Short | If relevant for the results, the method of obtaining the specimen.
Control | 0..1
Binding | SNOMED CT
Type | CodeableConcept
26. EHDSSpecimen.collection.device
Definition | Device used to perform specimen collection
Short | Device used to perform specimen collection
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
28. EHDSSpecimen.collection.bodySite
Definition | Anatomic location (e.g. body location, laterality and other details) where the material is collected, e.g. Elbow, left
Short | Anatomic location (e.g. body location, laterality and other details) where the material is collected, e.g. Elbow, left
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
30. EHDSSpecimen.receivedDate
Definition | Date and time when specimen is received by the testing laboratory.
Short | Date and time when specimen is received by the testing laboratory.
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
32. EHDSSpecimen.container
Definition | The container holding the specimen.
Short | The container holding the specimen.
Control | 0..*
Type | Base
34. EHDSSpecimen.container.specimenQuantity
Definition | Quantity of specimen within container
Short | Quantity of specimen within container
Control | 0..1
Type | Quantity
36. EHDSSpecimen.container.containerDevice
Definition | The device resource for the the container holding the specimen.
Short | The device resource for the the container holding the specimen.
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
38. EHDSSpecimen.condition
Definition | State of the specimen. State of the speeimen should be alligned with dataAbsentReason element of the Observatiom model.
Short | State of the specimen. State of the speeimen should be alligned with dataAbsentReason element of the Observatiom model.
Control | 0..*
Binding | HL7 specimenCondition
Type | CodeableConcept
40. EHDSSpecimen.note
Definition | To communicate any details or issues about the specimen or during the specimen collection. (for example: broken vial, sent with patient, frozen).
Short | To communicate any details or issues about the specimen or during the specimen collection. (for example: broken vial, sent with patient, frozen).
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. EHDSSpecimen
Definition | Model for a specimen to be used for analysis
Short | Specimen model
Control | 0..*
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSSpecimen.identifier
Definition | An identifier of the specimen which is unique within in a defined scope. Example: identifier assigned by ordering system, identifier assigned by laboratory etc. Multiple identifiers can be used.
Short | An identifier of the specimen which is unique within in a defined scope. Example: identifier assigned by ordering system, identifier assigned by laboratory etc. Multiple identifiers can be used.
Note | This is a business identifier, not a resource identifier (see discussion)
Control | 1..*
Type | Identifier
4. EHDSSpecimen.status
Definition | Availability of the specimen.
Short | Availability of the specimen.
Control | 0..1
Binding | HL7 specimen-status
Type | CodeableConcept
6. EHDSSpecimen.type
Definition | The kind of material that forms the Specimen.
Short | The kind of material that forms the Specimen.
Control | 0..1
Binding | SNOMED CT
Type | CodeableConcept
8. EHDSSpecimen.specimenSource[x]
Definition | Where the specimen came from. This may be from patient(s), from a location (e.g., the source of an environmental sample), or a device. Additional types of specimen may be allowed in implementations.
Short | Where the specimen came from. This may be from patient(s), from a location (e.g., the source of an environmental sample), or a device. Additional types of specimen may be allowed in implementations.
Control | 0..1
Type | Choice of: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSLocation, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
10. EHDSSpecimen.parentSpecimen
Definition | Specimen from which this specimen originated
Short | Specimen from which this specimen originated
Control | 0..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSSpecimen
12. EHDSSpecimen.request
Definition | Why the specimen ws collected
Short | Why the specimen ws collected
Control | 0..*
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSServiceRequest
14. EHDSSpecimen.combined
Definition | This element signifies if the specimen is part of a group or pooled.
Short | This element signifies if the specimen is part of a group or pooled.
Control | 0..1
Binding | HL7 specimen-combined
Type | CodeableConcept
16. EHDSSpecimen.collection
Definition | Collection details
Short | Collection details
Control | 0..*
Type | Base
18. EHDSSpecimen.collection.performer[x]
Definition | Person or organisation who collected the specimen
Short | Person or organisation who collected the specimen
Control | 0..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/EHDSPatient, http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSRelatedPerson
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
20. EHDSSpecimen.collection.collected[x]
Definition | The period or date and time of specimen collection.
Short | The period or date and time of specimen collection.
Control | 1..1
Type | Choice of: Period, dateTime
[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
22. EHDSSpecimen.collection.quantity
Definition | The quantity of specimen collected
Short | The quantity of specimen collected
Control | 0..1
Type | Quantity
24. EHDSSpecimen.collection.method
Definition | If relevant for the results, the method of obtaining the specimen.
Short | If relevant for the results, the method of obtaining the specimen.
Control | 0..1
Binding | SNOMED CT
Type | CodeableConcept
26. EHDSSpecimen.collection.device
Definition | Device used to perform specimen collection
Short | Device used to perform specimen collection
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
28. EHDSSpecimen.collection.bodySite
Definition | Anatomic location (e.g. body location, laterality and other details) where the material is collected, e.g. Elbow, left
Short | Anatomic location (e.g. body location, laterality and other details) where the material is collected, e.g. Elbow, left
Control | 0..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSBodyStructure
30. EHDSSpecimen.receivedDate
Definition | Date and time when specimen is received by the testing laboratory.
Short | Date and time when specimen is received by the testing laboratory.
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
32. EHDSSpecimen.container
Definition | The container holding the specimen.
Short | The container holding the specimen.
Control | 0..*
Type | Base
34. EHDSSpecimen.container.specimenQuantity
Definition | Quantity of specimen within container
Short | Quantity of specimen within container
Control | 0..1
Type | Quantity
36. EHDSSpecimen.container.containerDevice
Definition | The device resource for the the container holding the specimen.
Short | The device resource for the the container holding the specimen.
Control | 1..1
Type | http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice
38. EHDSSpecimen.condition
Definition | State of the specimen. State of the speeimen should be alligned with dataAbsentReason element of the Observatiom model.
Short | State of the specimen. State of the speeimen should be alligned with dataAbsentReason element of the Observatiom model.
Control | 0..*
Binding | HL7 specimenCondition
Type | CodeableConcept
40. EHDSSpecimen.note
Definition | To communicate any details or issues about the specimen or during the specimen collection. (for example: broken vial, sent with patient, frozen).
Short | To communicate any details or issues about the specimen or during the specimen collection. (for example: broken vial, sent with patient, frozen).
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension