EHDS Logical Information Models
0.4.0 - draft
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
| Official URL: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDosageObligations | Version: 0.4.0 | |||
| Draft as of 2026-02-22 | Computable Name: EHDSDosageObligations | |||
Obligations for the logical model for dosage.
Usages:
You can also check for usages in the FHIR IG Statistics
Description of Profiles, Differentials, Snapshots and how the different presentations work.
| Name | Flags | Card. | Type | Description & Constraints Filter:   | ||||
|---|---|---|---|---|---|---|---|---|
  EHDSDosage |
0..* | EHDSDosage | Dosage model | |||||
  renderedDosageInstruction |
O | 0..1 | string | Full dosage information as human-readable text covering all dosage steps. Generating the text follows local rules and should include all locally implemented dosage data even when such elements are not present in this model.
| ||||
  dosageDetails |
0..* | Base | Details of single dosage scheme step | |||||
 sequence |
0..1 | integer | Order of the dosage instruction, in case one treatment consists of several dosage steps. When two schemes share the same sequence number, they are meant to be running in parallel. | |||||
| note |
O | 0..1 | string | Patient oriented instructions as free text for this dosage step
| ||||
 doseAndRate |
0..* | Base | Amount of medication administered per one dose (= one timing) | |||||
  dose[x] |
O | 0..1 | Amount of medication per one dose. (1 tablet, 2-3 tablets, 20ml) Binding Description: (preferred): UCUM (units of measurement), EDQM Standard Terms (units of presentation)
| |||||
| doseQuantity |
Quantity | |||||||
 doseRange |
Range | |||||||
| rate[x] |
0..1 | Amount of medication per time period (e.g. 100mg per 1 hour). When rate is provided per 1 time unit, Quantity data type can be used with a suitable unit (e.g. mg/h, ug/min). Binding Description: (preferred): UCUM (units of measurement), EDQM Standard Terms (units of presentation) | ||||||
| rateQuantity |
Quantity | |||||||
| rateRatio |
Ratio | |||||||
| repeat |
O | 0..1 | Base | Repetition of the administration.
| ||||
| bounds[x] |
O | 0..1 | Time bounds for the treatment (current dosage scheme), Quantity contains a number of time units (e.g 10 days), Period contains start and end date (e.g. 05.08.2023 - 10.08.2023). Binding Description: (preferred): UCUM
| |||||
| boundsQuantity |
Quantity | |||||||
| boundsPeriod |
Period | |||||||
| duration |
0..1 | Quantity | Duration of administration (e.g '5 minutes', '1 hour') Binding Description: (preferred): UCUM | |||||
| frequency |
O | 0..1 | Base | Frequency of intake/administration (e.g 'three times a day')
| ||||
| numberOfTimes |
O | 0..1 | integer | Number of times per period (e.g '3 times')
| ||||
| period |
O | 0..1 | Quantity | Duration to which the frequency applies (e.g '... / 1 day') Binding Description: (preferred): UCUM
| ||||
| dayOfWeek |
0..* | CodeableConcept | The day of the week of administration, e.g Mon, Tue, etc | |||||
| timeOfDay |
0..* | time | Exact time of day of administration (e.g '10:00') | |||||
| eventTime |
0..* | CodeableConcept | Time period or event when the administration should happen ('before meal', 'immediately', 'morning') | |||||
| asNeeded |
0..1 | boolean | Take as needed | |||||
 bodySite |
0..1 | EHDSBodyStructure | Body site of administration | |||||
| routeOfAdministration |
O | 0..1 | CodeableConcept | Route of administration Binding Description: (preferred): EDQM Standard Terms
| ||||
| Documentation for this format | ||||||||
| Path | Status | Usage | ValueSet | Version | Source |
| EHDSDosage.dosageDetails.doseAndRate.dose[x] | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.doseAndRate.rate[x] | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.repeat.bounds[x] | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.repeat.duration | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.repeat.frequency.period | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.routeOfAdministration | Base | preferred | Not State | Unknown |
This structure is derived from EHDSDosage
| Name | Flags | Card. | Type | Description & Constraints Filter: | ||||
|---|---|---|---|---|---|---|---|---|
| EHDSDosage |
0..* | EHDSDosage | Dosage model | |||||
| renderedDosageInstruction |
O | 0..1 | string | Full dosage information as human-readable text covering all dosage steps. Generating the text follows local rules and should include all locally implemented dosage data even when such elements are not present in this model.
| ||||
| dosageDetails |
||||||||
| note |
O | 0..1 | string | Patient oriented instructions as free text for this dosage step
| ||||
| doseAndRate |
||||||||
| dose[x] |
O | 0..1 | Quantity, Range | Amount of medication per one dose. (1 tablet, 2-3 tablets, 20ml)
| ||||
| repeat |
O | 0..1 | Base | Repetition of the administration.
| ||||
| bounds[x] |
O | 0..1 | Quantity, Period | Time bounds for the treatment (current dosage scheme), Quantity contains a number of time units (e.g 10 days), Period contains start and end date (e.g. 05.08.2023 - 10.08.2023).
| ||||
| frequency |
O | 0..1 | Base | Frequency of intake/administration (e.g 'three times a day')
| ||||
| numberOfTimes |
O | 0..1 | integer | Number of times per period (e.g '3 times')
| ||||
| period |
O | 0..1 | Quantity | Duration to which the frequency applies (e.g '... / 1 day')
| ||||
| routeOfAdministration |
O | 0..1 | CodeableConcept | Route of administration
| ||||
| Documentation for this format | ||||||||
| Name | Flags | Card. | Type | Description & Constraints Filter: | ||||
|---|---|---|---|---|---|---|---|---|
| EHDSDosage |
0..* | EHDSDosage | Dosage model | |||||
| renderedDosageInstruction |
O | 0..1 | string | Full dosage information as human-readable text covering all dosage steps. Generating the text follows local rules and should include all locally implemented dosage data even when such elements are not present in this model.
| ||||
| dosageDetails |
0..* | Base | Details of single dosage scheme step | |||||
| sequence |
0..1 | integer | Order of the dosage instruction, in case one treatment consists of several dosage steps. When two schemes share the same sequence number, they are meant to be running in parallel. | |||||
| note |
O | 0..1 | string | Patient oriented instructions as free text for this dosage step
| ||||
| doseAndRate |
0..* | Base | Amount of medication administered per one dose (= one timing) | |||||
| dose[x] |
O | 0..1 | Amount of medication per one dose. (1 tablet, 2-3 tablets, 20ml) Binding Description: (preferred): UCUM (units of measurement), EDQM Standard Terms (units of presentation)
| |||||
| doseQuantity |
Quantity | |||||||
| doseRange |
Range | |||||||
| rate[x] |
0..1 | Amount of medication per time period (e.g. 100mg per 1 hour). When rate is provided per 1 time unit, Quantity data type can be used with a suitable unit (e.g. mg/h, ug/min). Binding Description: (preferred): UCUM (units of measurement), EDQM Standard Terms (units of presentation) | ||||||
| rateQuantity |
Quantity | |||||||
| rateRatio |
Ratio | |||||||
| repeat |
O | 0..1 | Base | Repetition of the administration.
| ||||
| bounds[x] |
O | 0..1 | Time bounds for the treatment (current dosage scheme), Quantity contains a number of time units (e.g 10 days), Period contains start and end date (e.g. 05.08.2023 - 10.08.2023). Binding Description: (preferred): UCUM
| |||||
| boundsQuantity |
Quantity | |||||||
| boundsPeriod |
Period | |||||||
| duration |
0..1 | Quantity | Duration of administration (e.g '5 minutes', '1 hour') Binding Description: (preferred): UCUM | |||||
| frequency |
O | 0..1 | Base | Frequency of intake/administration (e.g 'three times a day')
| ||||
| numberOfTimes |
O | 0..1 | integer | Number of times per period (e.g '3 times')
| ||||
| period |
O | 0..1 | Quantity | Duration to which the frequency applies (e.g '... / 1 day') Binding Description: (preferred): UCUM
| ||||
| dayOfWeek |
0..* | CodeableConcept | The day of the week of administration, e.g Mon, Tue, etc | |||||
| timeOfDay |
0..* | time | Exact time of day of administration (e.g '10:00') | |||||
| eventTime |
0..* | CodeableConcept | Time period or event when the administration should happen ('before meal', 'immediately', 'morning') | |||||
| asNeeded |
0..1 | boolean | Take as needed | |||||
| bodySite |
0..1 | EHDSBodyStructure | Body site of administration | |||||
| routeOfAdministration |
O | 0..1 | CodeableConcept | Route of administration Binding Description: (preferred): EDQM Standard Terms
| ||||
| Documentation for this format | ||||||||
| Path | Status | Usage | ValueSet | Version | Source |
| EHDSDosage.dosageDetails.doseAndRate.dose[x] | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.doseAndRate.rate[x] | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.repeat.bounds[x] | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.repeat.duration | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.repeat.frequency.period | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.routeOfAdministration | Base | preferred | Not State | Unknown |
This structure is derived from EHDSDosage
Key Elements View
| Name | Flags | Card. | Type | Description & Constraints Filter: | ||||
|---|---|---|---|---|---|---|---|---|
| EHDSDosage |
0..* | EHDSDosage | Dosage model | |||||
| renderedDosageInstruction |
O | 0..1 | string | Full dosage information as human-readable text covering all dosage steps. Generating the text follows local rules and should include all locally implemented dosage data even when such elements are not present in this model.
| ||||
| dosageDetails |
0..* | Base | Details of single dosage scheme step | |||||
| sequence |
0..1 | integer | Order of the dosage instruction, in case one treatment consists of several dosage steps. When two schemes share the same sequence number, they are meant to be running in parallel. | |||||
| note |
O | 0..1 | string | Patient oriented instructions as free text for this dosage step
| ||||
| doseAndRate |
0..* | Base | Amount of medication administered per one dose (= one timing) | |||||
| dose[x] |
O | 0..1 | Amount of medication per one dose. (1 tablet, 2-3 tablets, 20ml) Binding Description: (preferred): UCUM (units of measurement), EDQM Standard Terms (units of presentation)
| |||||
| doseQuantity |
Quantity | |||||||
| doseRange |
Range | |||||||
| rate[x] |
0..1 | Amount of medication per time period (e.g. 100mg per 1 hour). When rate is provided per 1 time unit, Quantity data type can be used with a suitable unit (e.g. mg/h, ug/min). Binding Description: (preferred): UCUM (units of measurement), EDQM Standard Terms (units of presentation) | ||||||
| rateQuantity |
Quantity | |||||||
| rateRatio |
Ratio | |||||||
| repeat |
O | 0..1 | Base | Repetition of the administration.
| ||||
| bounds[x] |
O | 0..1 | Time bounds for the treatment (current dosage scheme), Quantity contains a number of time units (e.g 10 days), Period contains start and end date (e.g. 05.08.2023 - 10.08.2023). Binding Description: (preferred): UCUM
| |||||
| boundsQuantity |
Quantity | |||||||
| boundsPeriod |
Period | |||||||
| duration |
0..1 | Quantity | Duration of administration (e.g '5 minutes', '1 hour') Binding Description: (preferred): UCUM | |||||
| frequency |
O | 0..1 | Base | Frequency of intake/administration (e.g 'three times a day')
| ||||
| numberOfTimes |
O | 0..1 | integer | Number of times per period (e.g '3 times')
| ||||
| period |
O | 0..1 | Quantity | Duration to which the frequency applies (e.g '... / 1 day') Binding Description: (preferred): UCUM
| ||||
| dayOfWeek |
0..* | CodeableConcept | The day of the week of administration, e.g Mon, Tue, etc | |||||
| timeOfDay |
0..* | time | Exact time of day of administration (e.g '10:00') | |||||
| eventTime |
0..* | CodeableConcept | Time period or event when the administration should happen ('before meal', 'immediately', 'morning') | |||||
| asNeeded |
0..1 | boolean | Take as needed | |||||
| bodySite |
0..1 | EHDSBodyStructure | Body site of administration | |||||
| routeOfAdministration |
O | 0..1 | CodeableConcept | Route of administration Binding Description: (preferred): EDQM Standard Terms
| ||||
| Documentation for this format | ||||||||
| Path | Status | Usage | ValueSet | Version | Source |
| EHDSDosage.dosageDetails.doseAndRate.dose[x] | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.doseAndRate.rate[x] | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.repeat.bounds[x] | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.repeat.duration | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.repeat.frequency.period | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.routeOfAdministration | Base | preferred | Not State | Unknown |
Differential View
This structure is derived from EHDSDosage
| Name | Flags | Card. | Type | Description & Constraints Filter: | ||||
|---|---|---|---|---|---|---|---|---|
| EHDSDosage |
0..* | EHDSDosage | Dosage model | |||||
| renderedDosageInstruction |
O | 0..1 | string | Full dosage information as human-readable text covering all dosage steps. Generating the text follows local rules and should include all locally implemented dosage data even when such elements are not present in this model.
| ||||
| dosageDetails |
||||||||
| note |
O | 0..1 | string | Patient oriented instructions as free text for this dosage step
| ||||
| doseAndRate |
||||||||
| dose[x] |
O | 0..1 | Quantity, Range | Amount of medication per one dose. (1 tablet, 2-3 tablets, 20ml)
| ||||
| repeat |
O | 0..1 | Base | Repetition of the administration.
| ||||
| bounds[x] |
O | 0..1 | Quantity, Period | Time bounds for the treatment (current dosage scheme), Quantity contains a number of time units (e.g 10 days), Period contains start and end date (e.g. 05.08.2023 - 10.08.2023).
| ||||
| frequency |
O | 0..1 | Base | Frequency of intake/administration (e.g 'three times a day')
| ||||
| numberOfTimes |
O | 0..1 | integer | Number of times per period (e.g '3 times')
| ||||
| period |
O | 0..1 | Quantity | Duration to which the frequency applies (e.g '... / 1 day')
| ||||
| routeOfAdministration |
O | 0..1 | CodeableConcept | Route of administration
| ||||
| Documentation for this format | ||||||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: | ||||
|---|---|---|---|---|---|---|---|---|
| EHDSDosage |
0..* | EHDSDosage | Dosage model | |||||
| renderedDosageInstruction |
O | 0..1 | string | Full dosage information as human-readable text covering all dosage steps. Generating the text follows local rules and should include all locally implemented dosage data even when such elements are not present in this model.
| ||||
| dosageDetails |
0..* | Base | Details of single dosage scheme step | |||||
| sequence |
0..1 | integer | Order of the dosage instruction, in case one treatment consists of several dosage steps. When two schemes share the same sequence number, they are meant to be running in parallel. | |||||
| note |
O | 0..1 | string | Patient oriented instructions as free text for this dosage step
| ||||
| doseAndRate |
0..* | Base | Amount of medication administered per one dose (= one timing) | |||||
| dose[x] |
O | 0..1 | Amount of medication per one dose. (1 tablet, 2-3 tablets, 20ml) Binding Description: (preferred): UCUM (units of measurement), EDQM Standard Terms (units of presentation)
| |||||
| doseQuantity |
Quantity | |||||||
| doseRange |
Range | |||||||
| rate[x] |
0..1 | Amount of medication per time period (e.g. 100mg per 1 hour). When rate is provided per 1 time unit, Quantity data type can be used with a suitable unit (e.g. mg/h, ug/min). Binding Description: (preferred): UCUM (units of measurement), EDQM Standard Terms (units of presentation) | ||||||
| rateQuantity |
Quantity | |||||||
| rateRatio |
Ratio | |||||||
| repeat |
O | 0..1 | Base | Repetition of the administration.
| ||||
| bounds[x] |
O | 0..1 | Time bounds for the treatment (current dosage scheme), Quantity contains a number of time units (e.g 10 days), Period contains start and end date (e.g. 05.08.2023 - 10.08.2023). Binding Description: (preferred): UCUM
| |||||
| boundsQuantity |
Quantity | |||||||
| boundsPeriod |
Period | |||||||
| duration |
0..1 | Quantity | Duration of administration (e.g '5 minutes', '1 hour') Binding Description: (preferred): UCUM | |||||
| frequency |
O | 0..1 | Base | Frequency of intake/administration (e.g 'three times a day')
| ||||
| numberOfTimes |
O | 0..1 | integer | Number of times per period (e.g '3 times')
| ||||
| period |
O | 0..1 | Quantity | Duration to which the frequency applies (e.g '... / 1 day') Binding Description: (preferred): UCUM
| ||||
| dayOfWeek |
0..* | CodeableConcept | The day of the week of administration, e.g Mon, Tue, etc | |||||
| timeOfDay |
0..* | time | Exact time of day of administration (e.g '10:00') | |||||
| eventTime |
0..* | CodeableConcept | Time period or event when the administration should happen ('before meal', 'immediately', 'morning') | |||||
| asNeeded |
0..1 | boolean | Take as needed | |||||
| bodySite |
0..1 | EHDSBodyStructure | Body site of administration | |||||
| routeOfAdministration |
O | 0..1 | CodeableConcept | Route of administration Binding Description: (preferred): EDQM Standard Terms
| ||||
| Documentation for this format | ||||||||
| Path | Status | Usage | ValueSet | Version | Source |
| EHDSDosage.dosageDetails.doseAndRate.dose[x] | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.doseAndRate.rate[x] | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.repeat.bounds[x] | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.repeat.duration | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.repeat.frequency.period | Base | preferred | Not State | Unknown | |
| EHDSDosage.dosageDetails.routeOfAdministration | Base | preferred | Not State | Unknown |
This structure is derived from EHDSDosage
IG © 2022+ Xt-EHR. Package xtehr.eu.ehds.models#0.4.0 based on FHIR 5.0.0. Generated 2026-02-22
Links:
Table of Contents |
QA Report
The Xt-EHR action is co-funded by the European Union, EU4Health Program 2021-2027, under Grant Agreement Nr.º 101128085.
