EHDS Logical Information Models
0.1.0 - ci-build

EHDS Logical Information Models, published by Xt-EHR. This guide is not an authorized publication; it is the continuous build for version 0.1.0 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/tree/stakeholder-consultation-D7-3 and changes regularly. See the Directory of published versions

## Logical Model: EHDSLaboratoryOrderBody - Detailed Descriptions

Draft as of 2025-08-25

Definitions for the EHDSLaboratoryOrderBody 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. EHDSLaboratoryOrderBody
Definition | B.1 - EHDS refined base model for Laboratory order body Base definition for all types defined in FHIR type system.
Short | Laboratory order body 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. EHDSLaboratoryOrderBody.orderInformation
Definition | Order Information
Short | Order Information
Control | 0..*
Type | Base
4. EHDSLaboratoryOrderBody.orderInformation.orderId
Definition | An identifier of the laboratory test order.
Short | An identifier of the laboratory test order.
Control | 1..*
Type | Identifier
6. EHDSLaboratoryOrderBody.orderInformation.orderDateAndTime
Definition | Date and time of the order placement.
Short | Date and time of the order placement.
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
8. EHDSLaboratoryOrderBody.orderInformation.orderText
Definition | A verbal description of the order or any supplementary requirements specific to each type of order, if they cannot be expressed formally.
Short | A verbal description of the order or any supplementary requirements specific to each type of order, if they cannot be expressed formally.
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
10. EHDSLaboratoryOrderBody.orderInformation.orderPlacer[x]
Definition | The person/organisation "authorised" to place the order. Order placer could be either a health professional, health professional organisation or the patient himself.
Short | The person/organisation "authorised" to place the order. Order placer could be either a health professional, health professional organisation or the patient himself.
Control | 0..1
Type | Choice of: https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSHealthProfessional, https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSOrganisation, https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSPatient
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
12. EHDSLaboratoryOrderBody.orderInformation.orderReasonText
Definition | An explanation or justification for why this service is being requested in textual form.
Short | An explanation or justification for why this service is being requested in textual form.
Control | 0..*
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
14. EHDSLaboratoryOrderBody.orderInformation.orderReason[x]
Definition | An explanation or justification for why this service is being requested in coded or structured form.
Short | An explanation or justification for why this service is being requested in coded or structured form.
Control | 0..*
Binding | SNOMED CT
Type | Choice of: CodeableConcept, https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSCondition, https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSObservation
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
16. EHDSLaboratoryOrderBody.orderInformation.clinicalQuestion
Definition | Specification of clinical question (goal of the investigation) to be answered by the laboratory investigation.
Short | Specification of clinical question (goal of the investigation) to be answered by the laboratory investigation.
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
18. EHDSLaboratoryOrderBody.encounter
Definition | An encounter that provides additional information about the healthcare context in which this order is made.
Short | An encounter that provides additional information about the healthcare context in which this order is made.
Control | 0..1
Type | Reference(Encounter model)
20. EHDSLaboratoryOrderBody.supportingInformation
Definition | Additional clinical information about the patient or specimen that may influence the services or their interpretations. This information includes diagnosis, clinical findings and other observations. In laboratory ordering these are typically referred to as 'ask at order entry questions (AOEs).' This includes observations explicitly requested by the producer (filler) to provide context or supporting information needed to complete the order. For example, reporting the amount of inspired oxygen for blood gas measurements.
Short | Additional clinical information about the patient or specimen that may influence the services or their interpretations. This information includes diagnosis, clinical findings and other observations. In laboratory ordering these are typically referred to as 'ask at order entry questions (AOEs).' This includes observations explicitly requested by the producer (filler) to provide context or supporting information needed to complete the order. For example, reporting the amount of inspired oxygen for blood gas measurements.
Control | 0..1
Type | Base
22. EHDSLaboratoryOrderBody.supportingInformation.observation
Definition | Clinical findings and other observations.
Short | Clinical findings and other observations.
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSObservation
24. EHDSLaboratoryOrderBody.supportingInformation.condition
Definition | Condition that may influence the service or result interpretation.
Short | Condition that may influence the service or result interpretation.
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSCondition
26. EHDSLaboratoryOrderBody.supportingInformation.medicationAdministration
Definition | Medication administered before ordering the service.
Short | Medication administered before ordering the service.
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSMedicationAdministration
28. EHDSLaboratoryOrderBody.supportingInformation.sexForClinicalUse
Definition | A Sex Parameter for Clinical Use is a parameter that provides guidance on how a recipient should apply settings or reference ranges that are derived from observable information such as an organ inventory, recent hormone lab tests, genetic testing, menstrual status, obstetric history, etc.. This property is intended for use in clinical decision making, and indicates that treatment or diagnostic tests should consider best practices associated with the relevant reference population
Short | A Sex Parameter for Clinical Use is a parameter that provides guidance on how a recipient should apply settings or reference ranges that are derived from observable information such as an organ inventory, recent hormone lab tests, genetic testing, menstrual status, obstetric history, etc.. This property is intended for use in clinical decision making, and indicates that treatment or diagnostic tests should consider best practices associated with the relevant reference population
Control | 0..*
Binding | HL7 sex-parameter-for-clinical-use
Type | CodeableConcept
30. EHDSLaboratoryOrderBody.supportingInformation.vaccination
Definition | Vaccination history of the patient.
Short | Vaccination history of the patient.
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSImmunisation
32. EHDSLaboratoryOrderBody.supportingInformation.otherSupportingInformation
Definition | Any other type of relevant supporting information
Short | Any other type of relevant supporting information
Control | 0..*
Type | Resource
34. EHDSLaboratoryOrderBody.specimen
Definition | Specimen information
Short | Specimen information
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSSpecimen
36. EHDSLaboratoryOrderBody.serviceRequests
Definition | Specification of requested service or services
Short | Specification of requested service or services
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSServiceRequest
38. EHDSLaboratoryOrderBody.allergy
Definition | Allergies and intolerances that may affect order execution or interpretation of results
Short | Allergies and intolerances that may affect order execution or interpretation of results
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSAllergyIntolerance
40. EHDSLaboratoryOrderBody.alerts
Definition | Alerts and warnings that may affect order execution or interpretation of results
Short | Alerts and warnings that may affect order execution or interpretation of results
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSAlert
42. EHDSLaboratoryOrderBody.appointment
Definition | Information about the appointment (if the appointment has been booked)
Short | Information about the appointment (if the appointment has been booked)
Control | 0..1
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSAppointment

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

0. EHDSLaboratoryOrderBody
Definition | B.1 - EHDS refined base model for Laboratory order body
Short | Laboratory order body model
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSLaboratoryOrderBody.orderInformation
Definition | Order Information
Short | Order Information
Control | 0..*
Type | Base
4. EHDSLaboratoryOrderBody.orderInformation.orderId
Definition | An identifier of the laboratory test order.
Short | An identifier of the laboratory test order.
Control | 1..*
Type | Identifier
6. EHDSLaboratoryOrderBody.orderInformation.orderDateAndTime
Definition | Date and time of the order placement.
Short | Date and time of the order placement.
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
8. EHDSLaboratoryOrderBody.orderInformation.orderText
Definition | A verbal description of the order or any supplementary requirements specific to each type of order, if they cannot be expressed formally.
Short | A verbal description of the order or any supplementary requirements specific to each type of order, if they cannot be expressed formally.
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
10. EHDSLaboratoryOrderBody.orderInformation.orderPlacer[x]
Definition | The person/organisation "authorised" to place the order. Order placer could be either a health professional, health professional organisation or the patient himself.
Short | The person/organisation "authorised" to place the order. Order placer could be either a health professional, health professional organisation or the patient himself.
Control | 0..1
Type | Choice of: https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSHealthProfessional, https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSOrganisation, https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSPatient
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
12. EHDSLaboratoryOrderBody.orderInformation.orderReasonText
Definition | An explanation or justification for why this service is being requested in textual form.
Short | An explanation or justification for why this service is being requested in textual form.
Control | 0..*
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
14. EHDSLaboratoryOrderBody.orderInformation.orderReason[x]
Definition | An explanation or justification for why this service is being requested in coded or structured form.
Short | An explanation or justification for why this service is being requested in coded or structured form.
Control | 0..*
Binding | SNOMED CT
Type | Choice of: CodeableConcept, https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSCondition, https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSObservation
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
16. EHDSLaboratoryOrderBody.orderInformation.clinicalQuestion
Definition | Specification of clinical question (goal of the investigation) to be answered by the laboratory investigation.
Short | Specification of clinical question (goal of the investigation) to be answered by the laboratory investigation.
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
18. EHDSLaboratoryOrderBody.encounter
Definition | An encounter that provides additional information about the healthcare context in which this order is made.
Short | An encounter that provides additional information about the healthcare context in which this order is made.
Control | 0..1
Type | Reference(Encounter model)
20. EHDSLaboratoryOrderBody.supportingInformation
Definition | Additional clinical information about the patient or specimen that may influence the services or their interpretations. This information includes diagnosis, clinical findings and other observations. In laboratory ordering these are typically referred to as 'ask at order entry questions (AOEs).' This includes observations explicitly requested by the producer (filler) to provide context or supporting information needed to complete the order. For example, reporting the amount of inspired oxygen for blood gas measurements.
Short | Additional clinical information about the patient or specimen that may influence the services or their interpretations. This information includes diagnosis, clinical findings and other observations. In laboratory ordering these are typically referred to as 'ask at order entry questions (AOEs).' This includes observations explicitly requested by the producer (filler) to provide context or supporting information needed to complete the order. For example, reporting the amount of inspired oxygen for blood gas measurements.
Control | 0..1
Type | Base
22. EHDSLaboratoryOrderBody.supportingInformation.observation
Definition | Clinical findings and other observations.
Short | Clinical findings and other observations.
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSObservation
24. EHDSLaboratoryOrderBody.supportingInformation.condition
Definition | Condition that may influence the service or result interpretation.
Short | Condition that may influence the service or result interpretation.
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSCondition
26. EHDSLaboratoryOrderBody.supportingInformation.medicationAdministration
Definition | Medication administered before ordering the service.
Short | Medication administered before ordering the service.
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSMedicationAdministration
28. EHDSLaboratoryOrderBody.supportingInformation.sexForClinicalUse
Definition | A Sex Parameter for Clinical Use is a parameter that provides guidance on how a recipient should apply settings or reference ranges that are derived from observable information such as an organ inventory, recent hormone lab tests, genetic testing, menstrual status, obstetric history, etc.. This property is intended for use in clinical decision making, and indicates that treatment or diagnostic tests should consider best practices associated with the relevant reference population
Short | A Sex Parameter for Clinical Use is a parameter that provides guidance on how a recipient should apply settings or reference ranges that are derived from observable information such as an organ inventory, recent hormone lab tests, genetic testing, menstrual status, obstetric history, etc.. This property is intended for use in clinical decision making, and indicates that treatment or diagnostic tests should consider best practices associated with the relevant reference population
Control | 0..*
Binding | HL7 sex-parameter-for-clinical-use
Type | CodeableConcept
30. EHDSLaboratoryOrderBody.supportingInformation.vaccination
Definition | Vaccination history of the patient.
Short | Vaccination history of the patient.
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSImmunisation
32. EHDSLaboratoryOrderBody.supportingInformation.otherSupportingInformation
Definition | Any other type of relevant supporting information
Short | Any other type of relevant supporting information
Control | 0..*
Type | Resource
34. EHDSLaboratoryOrderBody.specimen
Definition | Specimen information
Short | Specimen information
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSSpecimen
36. EHDSLaboratoryOrderBody.serviceRequests
Definition | Specification of requested service or services
Short | Specification of requested service or services
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSServiceRequest
38. EHDSLaboratoryOrderBody.allergy
Definition | Allergies and intolerances that may affect order execution or interpretation of results
Short | Allergies and intolerances that may affect order execution or interpretation of results
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSAllergyIntolerance
40. EHDSLaboratoryOrderBody.alerts
Definition | Alerts and warnings that may affect order execution or interpretation of results
Short | Alerts and warnings that may affect order execution or interpretation of results
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSAlert
42. EHDSLaboratoryOrderBody.appointment
Definition | Information about the appointment (if the appointment has been booked)
Short | Information about the appointment (if the appointment has been booked)
Control | 0..1
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSAppointment

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

0. EHDSLaboratoryOrderBody
Definition | B.1 - EHDS refined base model for Laboratory order body
Short | Laboratory order body model
Control | 0..*
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSLaboratoryOrderBody.orderInformation
Definition | Order Information
Short | Order Information
Control | 0..*
Type | Base
4. EHDSLaboratoryOrderBody.orderInformation.orderId
Definition | An identifier of the laboratory test order.
Short | An identifier of the laboratory test order.
Control | 1..*
Type | Identifier
6. EHDSLaboratoryOrderBody.orderInformation.orderDateAndTime
Definition | Date and time of the order placement.
Short | Date and time of the order placement.
Control | 0..1
Type | dateTime
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
8. EHDSLaboratoryOrderBody.orderInformation.orderText
Definition | A verbal description of the order or any supplementary requirements specific to each type of order, if they cannot be expressed formally.
Short | A verbal description of the order or any supplementary requirements specific to each type of order, if they cannot be expressed formally.
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
10. EHDSLaboratoryOrderBody.orderInformation.orderPlacer[x]
Definition | The person/organisation "authorised" to place the order. Order placer could be either a health professional, health professional organisation or the patient himself.
Short | The person/organisation "authorised" to place the order. Order placer could be either a health professional, health professional organisation or the patient himself.
Control | 0..1
Type | Choice of: https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSHealthProfessional, https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSOrganisation, https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSPatient
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
12. EHDSLaboratoryOrderBody.orderInformation.orderReasonText
Definition | An explanation or justification for why this service is being requested in textual form.
Short | An explanation or justification for why this service is being requested in textual form.
Control | 0..*
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
14. EHDSLaboratoryOrderBody.orderInformation.orderReason[x]
Definition | An explanation or justification for why this service is being requested in coded or structured form.
Short | An explanation or justification for why this service is being requested in coded or structured form.
Control | 0..*
Binding | SNOMED CT
Type | Choice of: CodeableConcept, https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSCondition, https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSObservation
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
16. EHDSLaboratoryOrderBody.orderInformation.clinicalQuestion
Definition | Specification of clinical question (goal of the investigation) to be answered by the laboratory investigation.
Short | Specification of clinical question (goal of the investigation) to be answered by the laboratory investigation.
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
18. EHDSLaboratoryOrderBody.encounter
Definition | An encounter that provides additional information about the healthcare context in which this order is made.
Short | An encounter that provides additional information about the healthcare context in which this order is made.
Control | 0..1
Type | Reference(Encounter model)
20. EHDSLaboratoryOrderBody.supportingInformation
Definition | Additional clinical information about the patient or specimen that may influence the services or their interpretations. This information includes diagnosis, clinical findings and other observations. In laboratory ordering these are typically referred to as 'ask at order entry questions (AOEs).' This includes observations explicitly requested by the producer (filler) to provide context or supporting information needed to complete the order. For example, reporting the amount of inspired oxygen for blood gas measurements.
Short | Additional clinical information about the patient or specimen that may influence the services or their interpretations. This information includes diagnosis, clinical findings and other observations. In laboratory ordering these are typically referred to as 'ask at order entry questions (AOEs).' This includes observations explicitly requested by the producer (filler) to provide context or supporting information needed to complete the order. For example, reporting the amount of inspired oxygen for blood gas measurements.
Control | 0..1
Type | Base
22. EHDSLaboratoryOrderBody.supportingInformation.observation
Definition | Clinical findings and other observations.
Short | Clinical findings and other observations.
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSObservation
24. EHDSLaboratoryOrderBody.supportingInformation.condition
Definition | Condition that may influence the service or result interpretation.
Short | Condition that may influence the service or result interpretation.
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSCondition
26. EHDSLaboratoryOrderBody.supportingInformation.medicationAdministration
Definition | Medication administered before ordering the service.
Short | Medication administered before ordering the service.
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSMedicationAdministration
28. EHDSLaboratoryOrderBody.supportingInformation.sexForClinicalUse
Definition | A Sex Parameter for Clinical Use is a parameter that provides guidance on how a recipient should apply settings or reference ranges that are derived from observable information such as an organ inventory, recent hormone lab tests, genetic testing, menstrual status, obstetric history, etc.. This property is intended for use in clinical decision making, and indicates that treatment or diagnostic tests should consider best practices associated with the relevant reference population
Short | A Sex Parameter for Clinical Use is a parameter that provides guidance on how a recipient should apply settings or reference ranges that are derived from observable information such as an organ inventory, recent hormone lab tests, genetic testing, menstrual status, obstetric history, etc.. This property is intended for use in clinical decision making, and indicates that treatment or diagnostic tests should consider best practices associated with the relevant reference population
Control | 0..*
Binding | HL7 sex-parameter-for-clinical-use
Type | CodeableConcept
30. EHDSLaboratoryOrderBody.supportingInformation.vaccination
Definition | Vaccination history of the patient.
Short | Vaccination history of the patient.
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSImmunisation
32. EHDSLaboratoryOrderBody.supportingInformation.otherSupportingInformation
Definition | Any other type of relevant supporting information
Short | Any other type of relevant supporting information
Control | 0..*
Type | Resource
34. EHDSLaboratoryOrderBody.specimen
Definition | Specimen information
Short | Specimen information
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSSpecimen
36. EHDSLaboratoryOrderBody.serviceRequests
Definition | Specification of requested service or services
Short | Specification of requested service or services
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSServiceRequest
38. EHDSLaboratoryOrderBody.allergy
Definition | Allergies and intolerances that may affect order execution or interpretation of results
Short | Allergies and intolerances that may affect order execution or interpretation of results
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSAllergyIntolerance
40. EHDSLaboratoryOrderBody.alerts
Definition | Alerts and warnings that may affect order execution or interpretation of results
Short | Alerts and warnings that may affect order execution or interpretation of results
Control | 0..*
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSAlert
42. EHDSLaboratoryOrderBody.appointment
Definition | Information about the appointment (if the appointment has been booked)
Short | Information about the appointment (if the appointment has been booked)
Control | 0..1
Type | https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSAppointment