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/costateixeira/xt-ehr-common/ and changes regularly. See the Directory of published versions

## Logical Model: EHDSMedicationCore - Detailed Descriptions

Active as of 2025-12-03

Definitions for the EHDSMedicationCore 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. EHDSMedicationCore
Definition | Logical model for prescribed/dispensed medication. The model is shared by statements, requests, dispensations, and treatment lines. Each of those may have different restrictions in FHIR profile. Model is suitable for generic/virtual medications as well as branded/real products. Base definition for all types defined in FHIR type system.
Short | Medication 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. EHDSMedicationCore.identifyingCode[x]
Definition | Identifier or code for the product (virtual product, branded product or package). If several identifiers are specified, they shall not have conflicting meanings or very different granularities.
Short | Identifier or code for the product (virtual product, branded product or package). If several identifiers are specified, they shall not have conflicting meanings or very different granularities.
Control | 0..*
Type | Choice of: CodeableConcept, Identifier
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
4. EHDSMedicationCore.classification
Definition | Classification (e.g. ATC; narcotic/psychotropic; orphan drug; etc.)
Short | Classification (e.g. ATC; narcotic/psychotropic; orphan drug; etc.)
Control | 0..*
Binding | WHO ATC
Type | CodeableConcept
6. EHDSMedicationCore.productName
Definition | Name of the product (full name, invented name, other). When the product has different names, the appropriate one for the context should be used. Translations of names can be provided.
Short | Name of the product (full name, invented name, other). When the product has different names, the appropriate one for the context should be used. Translations of names can be provided.
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
8. EHDSMedicationCore.doseForm
Definition | Dose form(s) on a product level. Dose form for a single package item is defined below.
Short | Dose form(s) on a product level. Dose form for a single package item is defined below.
Control | 0..1
Binding | EDQM Standard Terms
Type | CodeableConcept
10. EHDSMedicationCore.packSize
Definition | Overall amount of product in one package (100ml; 20 tablets; 1 creme & 6 pessaries)
Short | Overall amount of product in one package (100ml; 20 tablets; 1 creme & 6 pessaries)
Control | 0..*
Binding | UCUM for units of measure. EDQM Standard Terms for units of presentation.
Type | Quantity
12. EHDSMedicationCore.item
Definition | A medication item. For combination packs, this can be manufactured items with each item having its own dose form and ingredients+strengths defined
Short | A medication item. For combination packs, this can be manufactured items with each item having its own dose form and ingredients+strengths defined
Control | 0..*
Type | Base
14. EHDSMedicationCore.item.doseForm
Definition | Dose form
Short | Dose form
Control | 0..1
Binding | EDQM Standard Terms
Type | CodeableConcept
16. EHDSMedicationCore.item.ingredient
Definition | Ingredients
Short | Ingredients
Control | 1..*
Type | Base
18. EHDSMedicationCore.item.ingredient.isActive
Definition | Marks if the ingredient is considered an active ingredient. Typically excipients are not needed, so by default active ingredients are expected.
Short | Marks if the ingredient is considered an active ingredient. Typically excipients are not needed, so by default active ingredients are expected.
Control | 0..1
Type | boolean
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
20. EHDSMedicationCore.item.ingredient.substance
Definition | Substance
Short | Substance
Control | 1..1
Binding | EMA SPOR SMS
Type | CodeableConcept
22. EHDSMedicationCore.item.ingredient.strengthInfo
Definition | Strength of the product - amount of substance per unit
Short | Strength of the product - amount of substance per unit
Control | 0..1
Type | Base
24. EHDSMedicationCore.item.ingredient.strengthInfo.strength
Definition | Concentration or presentation strength, e.g 100mg/1ml or 500mg per 1 tablet
Short | Concentration or presentation strength, e.g 100mg/1ml or 500mg per 1 tablet
Control | 1..1
Type | Ratio
26. EHDSMedicationCore.item.ingredient.strengthInfo.basisOfStrengthSubstance
Definition | Substance that the strength refers to, in case it's different from the main substance
Short | Substance that the strength refers to, in case it's different from the main substance
Control | 0..1
Binding | EMA SPOR SMS
Type | CodeableConcept
28. EHDSMedicationCore.item.unitOfPresentation
Definition | Unit of presentation for the manufactured item (tablet, vial, tube). Typically, the smallest countable object in the package.
Short | Unit of presentation for the manufactured item (tablet, vial, tube). Typically, the smallest countable object in the package.
Control | 0..1
Binding | EDQM Standard Terms
Type | CodeableConcept
30. EHDSMedicationCore.item.containedQuantity
Definition | Manufactured item quantity for liquids (3ml / 1 vial)
Short | Manufactured item quantity for liquids (3ml / 1 vial)
Control | 0..1
Type | Ratio
32. EHDSMedicationCore.item.amount
Definition | Number of such manufactured items in this product (5 vials)
Short | Number of such manufactured items in this product (5 vials)
Control | 0..1
Binding | UCUM for units of measure. EDQM Standard Terms for units of presentation.
Type | Quantity
34. EHDSMedicationCore.characteristic
Definition | Other features of the product
Short | Other features of the product
Control | 0..*
Type | Base
36. EHDSMedicationCore.characteristic.type
Definition | A code expressing the type of characteristic
Short | A code expressing the type of characteristic
Control | 1..1
Type | CodeableConcept
38. EHDSMedicationCore.characteristic.value[x]
Definition | Description of the characteristic
Short | Description of the characteristic
Control | 0..1
Type | Choice of: boolean, CodeableConcept, string, Quantity, dateTime, integer, decimal, Ratio
[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

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

0. EHDSMedicationCore
Definition | Logical model for prescribed/dispensed medication. The model is shared by statements, requests, dispensations, and treatment lines. Each of those may have different restrictions in FHIR profile. Model is suitable for generic/virtual medications as well as branded/real products.
Short | Medication model
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSMedicationCore.identifyingCode[x]
Definition | Identifier or code for the product (virtual product, branded product or package). If several identifiers are specified, they shall not have conflicting meanings or very different granularities.
Short | Identifier or code for the product (virtual product, branded product or package). If several identifiers are specified, they shall not have conflicting meanings or very different granularities.
Control | 0..*
Type | Choice of: CodeableConcept, Identifier
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
4. EHDSMedicationCore.classification
Definition | Classification (e.g. ATC; narcotic/psychotropic; orphan drug; etc.)
Short | Classification (e.g. ATC; narcotic/psychotropic; orphan drug; etc.)
Control | 0..*
Binding | WHO ATC
Type | CodeableConcept
6. EHDSMedicationCore.productName
Definition | Name of the product (full name, invented name, other). When the product has different names, the appropriate one for the context should be used. Translations of names can be provided.
Short | Name of the product (full name, invented name, other). When the product has different names, the appropriate one for the context should be used. Translations of names can be provided.
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
8. EHDSMedicationCore.doseForm
Definition | Dose form(s) on a product level. Dose form for a single package item is defined below.
Short | Dose form(s) on a product level. Dose form for a single package item is defined below.
Control | 0..1
Binding | EDQM Standard Terms
Type | CodeableConcept
10. EHDSMedicationCore.packSize
Definition | Overall amount of product in one package (100ml; 20 tablets; 1 creme & 6 pessaries)
Short | Overall amount of product in one package (100ml; 20 tablets; 1 creme & 6 pessaries)
Control | 0..*
Binding | UCUM for units of measure. EDQM Standard Terms for units of presentation.
Type | Quantity
12. EHDSMedicationCore.item
Definition | A medication item. For combination packs, this can be manufactured items with each item having its own dose form and ingredients+strengths defined
Short | A medication item. For combination packs, this can be manufactured items with each item having its own dose form and ingredients+strengths defined
Control | 0..*
Type | Base
14. EHDSMedicationCore.item.doseForm
Definition | Dose form
Short | Dose form
Control | 0..1
Binding | EDQM Standard Terms
Type | CodeableConcept
16. EHDSMedicationCore.item.ingredient
Definition | Ingredients
Short | Ingredients
Control | 1..*
Type | Base
18. EHDSMedicationCore.item.ingredient.isActive
Definition | Marks if the ingredient is considered an active ingredient. Typically excipients are not needed, so by default active ingredients are expected.
Short | Marks if the ingredient is considered an active ingredient. Typically excipients are not needed, so by default active ingredients are expected.
Control | 0..1
Type | boolean
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
20. EHDSMedicationCore.item.ingredient.substance
Definition | Substance
Short | Substance
Control | 1..1
Binding | EMA SPOR SMS
Type | CodeableConcept
22. EHDSMedicationCore.item.ingredient.strengthInfo
Definition | Strength of the product - amount of substance per unit
Short | Strength of the product - amount of substance per unit
Control | 0..1
Type | Base
24. EHDSMedicationCore.item.ingredient.strengthInfo.strength
Definition | Concentration or presentation strength, e.g 100mg/1ml or 500mg per 1 tablet
Short | Concentration or presentation strength, e.g 100mg/1ml or 500mg per 1 tablet
Control | 1..1
Type | Ratio
26. EHDSMedicationCore.item.ingredient.strengthInfo.basisOfStrengthSubstance
Definition | Substance that the strength refers to, in case it's different from the main substance
Short | Substance that the strength refers to, in case it's different from the main substance
Control | 0..1
Binding | EMA SPOR SMS
Type | CodeableConcept
28. EHDSMedicationCore.item.unitOfPresentation
Definition | Unit of presentation for the manufactured item (tablet, vial, tube). Typically, the smallest countable object in the package.
Short | Unit of presentation for the manufactured item (tablet, vial, tube). Typically, the smallest countable object in the package.
Control | 0..1
Binding | EDQM Standard Terms
Type | CodeableConcept
30. EHDSMedicationCore.item.containedQuantity
Definition | Manufactured item quantity for liquids (3ml / 1 vial)
Short | Manufactured item quantity for liquids (3ml / 1 vial)
Control | 0..1
Type | Ratio
32. EHDSMedicationCore.item.amount
Definition | Number of such manufactured items in this product (5 vials)
Short | Number of such manufactured items in this product (5 vials)
Control | 0..1
Binding | UCUM for units of measure. EDQM Standard Terms for units of presentation.
Type | Quantity
34. EHDSMedicationCore.characteristic
Definition | Other features of the product
Short | Other features of the product
Control | 0..*
Type | Base
36. EHDSMedicationCore.characteristic.type
Definition | A code expressing the type of characteristic
Short | A code expressing the type of characteristic
Control | 1..1
Type | CodeableConcept
38. EHDSMedicationCore.characteristic.value[x]
Definition | Description of the characteristic
Short | Description of the characteristic
Control | 0..1
Type | Choice of: boolean, CodeableConcept, string, Quantity, dateTime, integer, decimal, Ratio
[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

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

0. EHDSMedicationCore
Definition | Logical model for prescribed/dispensed medication. The model is shared by statements, requests, dispensations, and treatment lines. Each of those may have different restrictions in FHIR profile. Model is suitable for generic/virtual medications as well as branded/real products.
Short | Medication model
Control | 0..*
Is Modifier | false
Logical Model | Instances of this logical model are not marked to be the target of a Reference
2. EHDSMedicationCore.identifyingCode[x]
Definition | Identifier or code for the product (virtual product, branded product or package). If several identifiers are specified, they shall not have conflicting meanings or very different granularities.
Short | Identifier or code for the product (virtual product, branded product or package). If several identifiers are specified, they shall not have conflicting meanings or very different granularities.
Control | 0..*
Type | Choice of: CodeableConcept, Identifier
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
4. EHDSMedicationCore.classification
Definition | Classification (e.g. ATC; narcotic/psychotropic; orphan drug; etc.)
Short | Classification (e.g. ATC; narcotic/psychotropic; orphan drug; etc.)
Control | 0..*
Binding | WHO ATC
Type | CodeableConcept
6. EHDSMedicationCore.productName
Definition | Name of the product (full name, invented name, other). When the product has different names, the appropriate one for the context should be used. Translations of names can be provided.
Short | Name of the product (full name, invented name, other). When the product has different names, the appropriate one for the context should be used. Translations of names can be provided.
Control | 0..1
Type | string
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
8. EHDSMedicationCore.doseForm
Definition | Dose form(s) on a product level. Dose form for a single package item is defined below.
Short | Dose form(s) on a product level. Dose form for a single package item is defined below.
Control | 0..1
Binding | EDQM Standard Terms
Type | CodeableConcept
10. EHDSMedicationCore.packSize
Definition | Overall amount of product in one package (100ml; 20 tablets; 1 creme & 6 pessaries)
Short | Overall amount of product in one package (100ml; 20 tablets; 1 creme & 6 pessaries)
Control | 0..*
Binding | UCUM for units of measure. EDQM Standard Terms for units of presentation.
Type | Quantity
12. EHDSMedicationCore.item
Definition | A medication item. For combination packs, this can be manufactured items with each item having its own dose form and ingredients+strengths defined
Short | A medication item. For combination packs, this can be manufactured items with each item having its own dose form and ingredients+strengths defined
Control | 0..*
Type | Base
14. EHDSMedicationCore.item.doseForm
Definition | Dose form
Short | Dose form
Control | 0..1
Binding | EDQM Standard Terms
Type | CodeableConcept
16. EHDSMedicationCore.item.ingredient
Definition | Ingredients
Short | Ingredients
Control | 1..*
Type | Base
18. EHDSMedicationCore.item.ingredient.isActive
Definition | Marks if the ingredient is considered an active ingredient. Typically excipients are not needed, so by default active ingredients are expected.
Short | Marks if the ingredient is considered an active ingredient. Typically excipients are not needed, so by default active ingredients are expected.
Control | 0..1
Type | boolean
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
20. EHDSMedicationCore.item.ingredient.substance
Definition | Substance
Short | Substance
Control | 1..1
Binding | EMA SPOR SMS
Type | CodeableConcept
22. EHDSMedicationCore.item.ingredient.strengthInfo
Definition | Strength of the product - amount of substance per unit
Short | Strength of the product - amount of substance per unit
Control | 0..1
Type | Base
24. EHDSMedicationCore.item.ingredient.strengthInfo.strength
Definition | Concentration or presentation strength, e.g 100mg/1ml or 500mg per 1 tablet
Short | Concentration or presentation strength, e.g 100mg/1ml or 500mg per 1 tablet
Control | 1..1
Type | Ratio
26. EHDSMedicationCore.item.ingredient.strengthInfo.basisOfStrengthSubstance
Definition | Substance that the strength refers to, in case it's different from the main substance
Short | Substance that the strength refers to, in case it's different from the main substance
Control | 0..1
Binding | EMA SPOR SMS
Type | CodeableConcept
28. EHDSMedicationCore.item.unitOfPresentation
Definition | Unit of presentation for the manufactured item (tablet, vial, tube). Typically, the smallest countable object in the package.
Short | Unit of presentation for the manufactured item (tablet, vial, tube). Typically, the smallest countable object in the package.
Control | 0..1
Binding | EDQM Standard Terms
Type | CodeableConcept
30. EHDSMedicationCore.item.containedQuantity
Definition | Manufactured item quantity for liquids (3ml / 1 vial)
Short | Manufactured item quantity for liquids (3ml / 1 vial)
Control | 0..1
Type | Ratio
32. EHDSMedicationCore.item.amount
Definition | Number of such manufactured items in this product (5 vials)
Short | Number of such manufactured items in this product (5 vials)
Control | 0..1
Binding | UCUM for units of measure. EDQM Standard Terms for units of presentation.
Type | Quantity
34. EHDSMedicationCore.characteristic
Definition | Other features of the product
Short | Other features of the product
Control | 0..*
Type | Base
36. EHDSMedicationCore.characteristic.type
Definition | A code expressing the type of characteristic
Short | A code expressing the type of characteristic
Control | 1..1
Type | CodeableConcept
38. EHDSMedicationCore.characteristic.value[x]
Definition | Description of the characteristic
Short | Description of the characteristic
Control | 0..1
Type | Choice of: boolean, CodeableConcept, string, Quantity, dateTime, integer, decimal, Ratio
[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