ERA FHIR specification
1.0.0 - draft

ERA FHIR specification - Local Development build (v1.0.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Extension: Extension dosageChanges

Official URL: http://resepti.kanta.fi/fhir/StructureDefinition/extension/dosageChanges Version: 1.0.0
Draft as of 2026-10-28 Computable Name: DosageChanges

Additional information on the change and correction of medication: Justification of the correction of prescription Additional notes for the correction of prescription The reason for the change in medication Further information on the change in medication Source

The dosageChanges extension is used in the MedicationRequest resource.

Context of Use

    This extension may be used on the following element(s)

Usage info

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

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

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Additional information on the change and correction of medication
Extension.Slices for extension 0..* Extension Extension
Slice: Unordered, Open by value:url
Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:modificationReasonCode 0..1 Extension Justification of the correction of prescription
Extension.Slices for extension.extension:modificationReasonCode.url 1..1 uri "modificationReasonCode"
Extension.Slices for extension.extension:modificationReasonCode.value[x] 1..1 Coding Justification of the correction of prescription
Extension.Slices for extension.extension:modificationReasonCode.value[x].system 1..1 uri OID of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Fixed Value: urn:oid:1.2.246.537.6.600.2013 (no extensions allowed)
Extension.Slices for extension.extension:modificationReasonCode.value[x].code 1..1 code Code of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Extension.Slices for extension.extension:modificationReasonText 0..1 Extension Further information on correction of prescription
Extension.Slices for extension.extension:modificationReasonText.url 1..1 uri "modificationReasonText"
Extension.Slices for extension.extension:modificationReasonText.value[x] 1..1 string Value of extension
Extension.Slices for extension.extension:dosageChangeReasonCode 0..1 Extension The reason for the change in medication
Extension.Slices for extension.extension:dosageChangeReasonCode.url 1..1 uri "dosageChangeReasonCode"
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x] 1..1 Coding The reason for the change in medication
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].system 1..1 uri OID of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Fixed Value: urn:oid:1.2.246.537.6.600.2013 (no extensions allowed)
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].code 1..1 code Code of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Extension.Slices for extension.extension:dosageChangeReasonText 0..1 Extension Further information on the change in medication
Extension.Slices for extension.extension:dosageChangeReasonText.url 1..1 uri "dosageChangeReasonText"
Extension.Slices for extension.extension:dosageChangeReasonText.value[x] 1..1 string Further information on the change in medication
Extension.url 1..1 uri "http://resepti.kanta.fi/fhir/StructureDefinition/extension/dosageChanges"
Extension.value[x] 0..0 Value of extension

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Additional information on the change and correction of medication
Extension.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension 0..* Extension Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:modificationReasonCode 0..1 Extension Justification of the correction of prescription
Extension.Slices for extension.extension:modificationReasonCode.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:modificationReasonCode.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:modificationReasonCode.url 1..1 uri "modificationReasonCode"
Extension.Slices for extension.extension:modificationReasonCode.value[x] 1..1 Coding Justification of the correction of prescription
Extension.Slices for extension.extension:modificationReasonCode.value[x].id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:modificationReasonCode.value[x].extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:modificationReasonCode.value[x].system This element is included in summaries. 1..1 uri OID of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Fixed Value: urn:oid:1.2.246.537.6.600.2013 (no extensions allowed)
Extension.Slices for extension.extension:modificationReasonCode.value[x].version This element is included in summaries. 0..1 string Version of the system - if relevant
Extension.Slices for extension.extension:modificationReasonCode.value[x].code This element is included in summaries. 1..1 code Code of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Extension.Slices for extension.extension:modificationReasonCode.value[x].display This element is included in summaries. 0..1 string Representation defined by the system
Extension.Slices for extension.extension:modificationReasonCode.value[x].userSelected This element is included in summaries. 0..1 boolean If this coding was chosen directly by the user
Extension.Slices for extension.extension:modificationReasonText 0..1 Extension Further information on correction of prescription
Extension.Slices for extension.extension:modificationReasonText.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:modificationReasonText.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:modificationReasonText.url 1..1 uri "modificationReasonText"
Extension.Slices for extension.extension:modificationReasonText.value[x] 1..1 string Value of extension
Extension.Slices for extension.extension:dosageChangeReasonCode 0..1 Extension The reason for the change in medication
Extension.Slices for extension.extension:dosageChangeReasonCode.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:dosageChangeReasonCode.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:dosageChangeReasonCode.url 1..1 uri "dosageChangeReasonCode"
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x] 1..1 Coding The reason for the change in medication
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].system This element is included in summaries. 1..1 uri OID of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Fixed Value: urn:oid:1.2.246.537.6.600.2013 (no extensions allowed)
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].version This element is included in summaries. 0..1 string Version of the system - if relevant
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].code This element is included in summaries. 1..1 code Code of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].display This element is included in summaries. 0..1 string Representation defined by the system
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].userSelected This element is included in summaries. 0..1 boolean If this coding was chosen directly by the user
Extension.Slices for extension.extension:dosageChangeReasonText 0..1 Extension Further information on the change in medication
Extension.Slices for extension.extension:dosageChangeReasonText.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:dosageChangeReasonText.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:dosageChangeReasonText.url 1..1 uri "dosageChangeReasonText"
Extension.Slices for extension.extension:dosageChangeReasonText.value[x] 1..1 string Further information on the change in medication
Extension.url 1..1 uri "http://resepti.kanta.fi/fhir/StructureDefinition/extension/dosageChanges"

doco Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: Additional information on the change and correction of medication: Justification of the correction of prescription Additional notes for the correction of prescription The reason for the change in medication Further information on the change in medication Source

  • modificationReasonCode: Coding: Justification for correcting the prescription. Reason for correcting the prescription, when the prescription message is 3 = correction of prescription. According to the Kanta code system 'THL - Lääkehoidon muutoksen syy'.
  • modificationReasonText: string: Further information on the justification of the correction of prescription.
  • dosageChangeReasonCode: Coding: The reason for a change in medication, such as a change of dosage or product, and a correction of prescription. According to the Kanta code system 'THL - Lääkehoidon muutoksen syy'.
  • dosageChangeReasonText: string: Additional information related to the change in medication. The further clarification of the adverse effect behind the change may have been recorded here.

Differential View

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Additional information on the change and correction of medication
Extension.Slices for extension 0..* Extension Extension
Slice: Unordered, Open by value:url
Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:modificationReasonCode 0..1 Extension Justification of the correction of prescription
Extension.Slices for extension.extension:modificationReasonCode.url 1..1 uri "modificationReasonCode"
Extension.Slices for extension.extension:modificationReasonCode.value[x] 1..1 Coding Justification of the correction of prescription
Extension.Slices for extension.extension:modificationReasonCode.value[x].system 1..1 uri OID of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Fixed Value: urn:oid:1.2.246.537.6.600.2013 (no extensions allowed)
Extension.Slices for extension.extension:modificationReasonCode.value[x].code 1..1 code Code of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Extension.Slices for extension.extension:modificationReasonText 0..1 Extension Further information on correction of prescription
Extension.Slices for extension.extension:modificationReasonText.url 1..1 uri "modificationReasonText"
Extension.Slices for extension.extension:modificationReasonText.value[x] 1..1 string Value of extension
Extension.Slices for extension.extension:dosageChangeReasonCode 0..1 Extension The reason for the change in medication
Extension.Slices for extension.extension:dosageChangeReasonCode.url 1..1 uri "dosageChangeReasonCode"
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x] 1..1 Coding The reason for the change in medication
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].system 1..1 uri OID of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Fixed Value: urn:oid:1.2.246.537.6.600.2013 (no extensions allowed)
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].code 1..1 code Code of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Extension.Slices for extension.extension:dosageChangeReasonText 0..1 Extension Further information on the change in medication
Extension.Slices for extension.extension:dosageChangeReasonText.url 1..1 uri "dosageChangeReasonText"
Extension.Slices for extension.extension:dosageChangeReasonText.value[x] 1..1 string Further information on the change in medication
Extension.url 1..1 uri "http://resepti.kanta.fi/fhir/StructureDefinition/extension/dosageChanges"
Extension.value[x] 0..0 Value of extension

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Additional information on the change and correction of medication
Extension.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension 0..* Extension Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.Slices for extension.extension:modificationReasonCode 0..1 Extension Justification of the correction of prescription
Extension.Slices for extension.extension:modificationReasonCode.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:modificationReasonCode.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:modificationReasonCode.url 1..1 uri "modificationReasonCode"
Extension.Slices for extension.extension:modificationReasonCode.value[x] 1..1 Coding Justification of the correction of prescription
Extension.Slices for extension.extension:modificationReasonCode.value[x].id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:modificationReasonCode.value[x].extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:modificationReasonCode.value[x].system This element is included in summaries. 1..1 uri OID of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Fixed Value: urn:oid:1.2.246.537.6.600.2013 (no extensions allowed)
Extension.Slices for extension.extension:modificationReasonCode.value[x].version This element is included in summaries. 0..1 string Version of the system - if relevant
Extension.Slices for extension.extension:modificationReasonCode.value[x].code This element is included in summaries. 1..1 code Code of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Extension.Slices for extension.extension:modificationReasonCode.value[x].display This element is included in summaries. 0..1 string Representation defined by the system
Extension.Slices for extension.extension:modificationReasonCode.value[x].userSelected This element is included in summaries. 0..1 boolean If this coding was chosen directly by the user
Extension.Slices for extension.extension:modificationReasonText 0..1 Extension Further information on correction of prescription
Extension.Slices for extension.extension:modificationReasonText.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:modificationReasonText.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:modificationReasonText.url 1..1 uri "modificationReasonText"
Extension.Slices for extension.extension:modificationReasonText.value[x] 1..1 string Value of extension
Extension.Slices for extension.extension:dosageChangeReasonCode 0..1 Extension The reason for the change in medication
Extension.Slices for extension.extension:dosageChangeReasonCode.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:dosageChangeReasonCode.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:dosageChangeReasonCode.url 1..1 uri "dosageChangeReasonCode"
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x] 1..1 Coding The reason for the change in medication
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].system This element is included in summaries. 1..1 uri OID of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Fixed Value: urn:oid:1.2.246.537.6.600.2013 (no extensions allowed)
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].version This element is included in summaries. 0..1 string Version of the system - if relevant
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].code This element is included in summaries. 1..1 code Code of the Kanta code system 'THL - Lääkehoidon muutoksen syy'
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].display This element is included in summaries. 0..1 string Representation defined by the system
Extension.Slices for extension.extension:dosageChangeReasonCode.value[x].userSelected This element is included in summaries. 0..1 boolean If this coding was chosen directly by the user
Extension.Slices for extension.extension:dosageChangeReasonText 0..1 Extension Further information on the change in medication
Extension.Slices for extension.extension:dosageChangeReasonText.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:dosageChangeReasonText.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:dosageChangeReasonText.url 1..1 uri "dosageChangeReasonText"
Extension.Slices for extension.extension:dosageChangeReasonText.value[x] 1..1 string Further information on the change in medication
Extension.url 1..1 uri "http://resepti.kanta.fi/fhir/StructureDefinition/extension/dosageChanges"

doco Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: Additional information on the change and correction of medication: Justification of the correction of prescription Additional notes for the correction of prescription The reason for the change in medication Further information on the change in medication Source

  • modificationReasonCode: Coding: Justification for correcting the prescription. Reason for correcting the prescription, when the prescription message is 3 = correction of prescription. According to the Kanta code system 'THL - Lääkehoidon muutoksen syy'.
  • modificationReasonText: string: Further information on the justification of the correction of prescription.
  • dosageChangeReasonCode: Coding: The reason for a change in medication, such as a change of dosage or product, and a correction of prescription. According to the Kanta code system 'THL - Lääkehoidon muutoksen syy'.
  • dosageChangeReasonText: string: Additional information related to the change in medication. The further clarification of the adverse effect behind the change may have been recorded here.

 

Other representations of profile: CSV, Excel, Schematron

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()