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: Dosage obligations

Official URL: http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDosageObligations | Version: 0.4.0
Draft as of 2026-02-23 | Computable Name: EHDSDosageObligations

Obligations for the logical model for dosage.

Usages:

- This Logical Model Profile is not used by any profiles in this Implementation Guide

You can also check for usages in the FHIR IG Statistics

### Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

- Key Elements Table
- Differential Table
- Snapshot Table
- Statistics/References
- All

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
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.
Obligations | Actor
SHOULD:able-to-populate | Producer
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
Obligations | Actor
SHOULD:able-to-populate | Producer
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)
Obligations | Actor
SHALL:able-to-populate | Producer
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.
Obligations | Actor
SHALL:able-to-populate | Producer
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
Obligations | Actor
SHALL:able-to-populate | Producer
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')
Obligations | Actor
SHALL:able-to-populate | Producer
numberOfTimes | O | 0..1 | integer | Number of times per period (e.g '3 times')
Obligations | Actor
SHALL:able-to-populate | Producer
period | O | 0..1 | Quantity | Duration to which the frequency applies (e.g '... / 1 day') Binding Description: (preferred): UCUM
Obligations | Actor
SHALL:able-to-populate | Producer
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
Obligations | Actor
SHOULD:able-to-populate | Producer
Documentation for this format

#### Terminology Bindings

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: Bindings Constraints Obligations
--- | --- | --- | --- | ---
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.
Obligations | Actor
SHOULD:able-to-populate | Producer
dosageDetails |  |  |  |
note | O | 0..1 | string | Patient oriented instructions as free text for this dosage step
Obligations | Actor
SHOULD:able-to-populate | Producer
doseAndRate |  |  |  |
dose[x] | O | 0..1 | Quantity, Range | Amount of medication per one dose. (1 tablet, 2-3 tablets, 20ml)
Obligations | Actor
SHALL:able-to-populate | Producer
repeat | O | 0..1 | Base | Repetition of the administration.
Obligations | Actor
SHALL:able-to-populate | Producer
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).
Obligations | Actor
SHALL:able-to-populate | Producer
frequency | O | 0..1 | Base | Frequency of intake/administration (e.g 'three times a day')
Obligations | Actor
SHALL:able-to-populate | Producer
numberOfTimes | O | 0..1 | integer | Number of times per period (e.g '3 times')
Obligations | Actor
SHALL:able-to-populate | Producer
period | O | 0..1 | Quantity | Duration to which the frequency applies (e.g '... / 1 day')
Obligations | Actor
SHALL:able-to-populate | Producer
routeOfAdministration | O | 0..1 | CodeableConcept | Route of administration
Obligations | Actor
SHOULD:able-to-populate | Producer
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
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.
Obligations | Actor
SHOULD:able-to-populate | Producer
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
Obligations | Actor
SHOULD:able-to-populate | Producer
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)
Obligations | Actor
SHALL:able-to-populate | Producer
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.
Obligations | Actor
SHALL:able-to-populate | Producer
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
Obligations | Actor
SHALL:able-to-populate | Producer
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')
Obligations | Actor
SHALL:able-to-populate | Producer
numberOfTimes | O | 0..1 | integer | Number of times per period (e.g '3 times')
Obligations | Actor
SHALL:able-to-populate | Producer
period | O | 0..1 | Quantity | Duration to which the frequency applies (e.g '... / 1 day') Binding Description: (preferred): UCUM
Obligations | Actor
SHALL:able-to-populate | Producer
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
Obligations | Actor
SHOULD:able-to-populate | Producer
Documentation for this format

#### Terminology Bindings

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

Summary

Key Elements View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
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.
Obligations | Actor
SHOULD:able-to-populate | Producer
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
Obligations | Actor
SHOULD:able-to-populate | Producer
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)
Obligations | Actor
SHALL:able-to-populate | Producer
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.
Obligations | Actor
SHALL:able-to-populate | Producer
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
Obligations | Actor
SHALL:able-to-populate | Producer
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')
Obligations | Actor
SHALL:able-to-populate | Producer
numberOfTimes | O | 0..1 | integer | Number of times per period (e.g '3 times')
Obligations | Actor
SHALL:able-to-populate | Producer
period | O | 0..1 | Quantity | Duration to which the frequency applies (e.g '... / 1 day') Binding Description: (preferred): UCUM
Obligations | Actor
SHALL:able-to-populate | Producer
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
Obligations | Actor
SHOULD:able-to-populate | Producer
Documentation for this format

#### Terminology Bindings

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: Bindings Constraints Obligations
--- | --- | --- | --- | ---
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.
Obligations | Actor
SHOULD:able-to-populate | Producer
dosageDetails |  |  |  |
note | O | 0..1 | string | Patient oriented instructions as free text for this dosage step
Obligations | Actor
SHOULD:able-to-populate | Producer
doseAndRate |  |  |  |
dose[x] | O | 0..1 | Quantity, Range | Amount of medication per one dose. (1 tablet, 2-3 tablets, 20ml)
Obligations | Actor
SHALL:able-to-populate | Producer
repeat | O | 0..1 | Base | Repetition of the administration.
Obligations | Actor
SHALL:able-to-populate | Producer
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).
Obligations | Actor
SHALL:able-to-populate | Producer
frequency | O | 0..1 | Base | Frequency of intake/administration (e.g 'three times a day')
Obligations | Actor
SHALL:able-to-populate | Producer
numberOfTimes | O | 0..1 | integer | Number of times per period (e.g '3 times')
Obligations | Actor
SHALL:able-to-populate | Producer
period | O | 0..1 | Quantity | Duration to which the frequency applies (e.g '... / 1 day')
Obligations | Actor
SHALL:able-to-populate | Producer
routeOfAdministration | O | 0..1 | CodeableConcept | Route of administration
Obligations | Actor
SHOULD:able-to-populate | Producer
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
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.
Obligations | Actor
SHOULD:able-to-populate | Producer
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
Obligations | Actor
SHOULD:able-to-populate | Producer
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)
Obligations | Actor
SHALL:able-to-populate | Producer
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.
Obligations | Actor
SHALL:able-to-populate | Producer
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
Obligations | Actor
SHALL:able-to-populate | Producer
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')
Obligations | Actor
SHALL:able-to-populate | Producer
numberOfTimes | O | 0..1 | integer | Number of times per period (e.g '3 times')
Obligations | Actor
SHALL:able-to-populate | Producer
period | O | 0..1 | Quantity | Duration to which the frequency applies (e.g '... / 1 day') Binding Description: (preferred): UCUM
Obligations | Actor
SHALL:able-to-populate | Producer
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
Obligations | Actor
SHOULD:able-to-populate | Producer
Documentation for this format

#### Terminology Bindings

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

Summary

Other representations of profile: CSV, Excel