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: EHDSDosage - Detailed Descriptions

Draft as of 2026-02-05

Definitions for the EHDSDosage 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. EHDSDosage
Definition | EHDS refined base model for Dosage Base definition for all types defined in FHIR type system.
Short | Dosage 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. EHDSDosage.dosageDescription
Definition | Free text dosage instructions.
Short | Dosage description
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
4. EHDSDosage.site
Definition | Body site administered to.
Short | Site
Control | 0..1
Type | CodeableConcept
6. EHDSDosage.route
Definition | Path of substance into body.
Short | Route
Control | 0..1
Type | CodeableConcept
8. EHDSDosage.method
Definition | How drug was administered.
Short | Method
Control | 0..1
Type | CodeableConcept
10. EHDSDosage.dose
Definition | Amount of medication per dose.
Short | Dose
Control | 0..1
Type | Quantity
12. EHDSDosage.rate[x]
Definition | Dose quantity per unit of time.
Short | Rate
Control | 0..1
Type | Choice of: Ratio, Quantity
[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. EHDSDosage
Definition | EHDS refined base model for Dosage
Short | Dosage model
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSDosage.dosageDescription
Definition | Free text dosage instructions.
Short | Dosage description
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
4. EHDSDosage.site
Definition | Body site administered to.
Short | Site
Control | 0..1
Type | CodeableConcept
6. EHDSDosage.route
Definition | Path of substance into body.
Short | Route
Control | 0..1
Type | CodeableConcept
8. EHDSDosage.method
Definition | How drug was administered.
Short | Method
Control | 0..1
Type | CodeableConcept
10. EHDSDosage.dose
Definition | Amount of medication per dose.
Short | Dose
Control | 0..1
Type | Quantity
12. EHDSDosage.rate[x]
Definition | Dose quantity per unit of time.
Short | Rate
Control | 0..1
Type | Choice of: Ratio, Quantity
[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. EHDSDosage
Definition | EHDS refined base model for Dosage
Short | Dosage model
Control | 0..*
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSDosage.dosageDescription
Definition | Free text dosage instructions.
Short | Dosage description
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
4. EHDSDosage.site
Definition | Body site administered to.
Short | Site
Control | 0..1
Type | CodeableConcept
6. EHDSDosage.route
Definition | Path of substance into body.
Short | Route
Control | 0..1
Type | CodeableConcept
8. EHDSDosage.method
Definition | How drug was administered.
Short | Method
Control | 0..1
Type | CodeableConcept
10. EHDSDosage.dose
Definition | Amount of medication per dose.
Short | Dose
Control | 0..1
Type | Quantity
12. EHDSDosage.rate[x]
Definition | Dose quantity per unit of time.
Short | Rate
Control | 0..1
Type | Choice of: Ratio, Quantity
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]