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 dosageInfo

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

The weight of a patient under 12 years of age Sic! notation The reason for the Sic! notation Additional information on the Sic! notation Dosage instructions only as text Source

The dosageinfo 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 Weight of a patient under 12 years of age, information of the Sic! notation and dosage instructions only as text
Extension.Slices for extension 2..* 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:weightPatientUnder12YearsOld 0..1 Extension The weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.url 1..1 uri "weightPatientUnder12YearsOld"
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x] 1..1 Quantity The weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].value 1..1 decimal The weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].unit 1..1 string Unit of weight of a patient under 12 years of age
Extension.Slices for extension.extension:sicLabel 1..1 Extension Sic! notation
Extension.Slices for extension.extension:sicLabel.url 1..1 uri "sicLabel"
Extension.Slices for extension.extension:sicLabel.value[x] 1..1 boolean Sic! notation
Extension.Slices for extension.extension:sicReasonCode 0..* Extension The reason for the Sic! notation
Extension.Slices for extension.extension:sicReasonCode.url 1..1 uri "sicReasonCode"
Extension.Slices for extension.extension:sicReasonCode.value[x] 1..1 Coding The reason for the Sic! notation
Extension.Slices for extension.extension:sicReasonCode.value[x].system 1..1 uri OID of the Kanta code system 'THL - Sic!-merkinnän syy'
Fixed Value: urn:oid:1.2.246.537.6.615.202301 (no extensions allowed)
Extension.Slices for extension.extension:sicReasonCode.value[x].code 1..1 code Code of the Kanta code system 'THL - Sic!-merkinnän syy'
Extension.Slices for extension.extension:sicReasonText 0..* Extension Additional information on the Sic! notation
Extension.Slices for extension.extension:sicReasonText.url 1..1 uri "sicReasonText"
Extension.Slices for extension.extension:sicReasonText.value[x] 1..1 string Additional information on the Sic! notation
Extension.Slices for extension.extension:onlyTextDosageInUse 1..1 Extension Dosage instructions only as text
Extension.Slices for extension.extension:onlyTextDosageInUse.url 1..1 uri "onlyTextDosageInUse"
Extension.Slices for extension.extension:onlyTextDosageInUse.value[x] 1..1 boolean Dosage instructions only as text
Extension.Slices for extension.extension:dosageChangesAllowed 0..1 Extension Change of dosage instructions allowed
Extension.Slices for extension.extension:dosageChangesAllowed.url 1..1 uri "dosageChangesAllowed"
Extension.Slices for extension.extension:dosageChangesAllowed.value[x] 1..1 boolean Change of dosage instructions allowed
Extension.url 1..1 uri "http://resepti.kanta.fi/fhir/StructureDefinition/extension/dosageInfo"
Extension.value[x] 0..0 Value of extension

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Weight of a patient under 12 years of age, information of the Sic! notation and dosage instructions only as text
Extension.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension 2..* 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:weightPatientUnder12YearsOld 0..1 Extension The weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.url 1..1 uri "weightPatientUnder12YearsOld"
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x] 1..1 Quantity The weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].value This element is included in summaries. 1..1 decimal The weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].comparator This element is a modifier element. This element is included in summaries. 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].unit This element is included in summaries. 1..1 string Unit of weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].system This element is included in summaries. C 0..1 uri System that defines coded unit form
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].code This element is included in summaries. 0..1 code Coded form of the unit
Extension.Slices for extension.extension:sicLabel 1..1 Extension Sic! notation
Extension.Slices for extension.extension:sicLabel.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:sicLabel.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:sicLabel.url 1..1 uri "sicLabel"
Extension.Slices for extension.extension:sicLabel.value[x] 1..1 boolean Sic! notation
Extension.Slices for extension.extension:sicReasonCode 0..* Extension The reason for the Sic! notation
Extension.Slices for extension.extension:sicReasonCode.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:sicReasonCode.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:sicReasonCode.url 1..1 uri "sicReasonCode"
Extension.Slices for extension.extension:sicReasonCode.value[x] 1..1 Coding The reason for the Sic! notation
Extension.Slices for extension.extension:sicReasonCode.value[x].id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:sicReasonCode.value[x].extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:sicReasonCode.value[x].system This element is included in summaries. 1..1 uri OID of the Kanta code system 'THL - Sic!-merkinnän syy'
Fixed Value: urn:oid:1.2.246.537.6.615.202301 (no extensions allowed)
Extension.Slices for extension.extension:sicReasonCode.value[x].version This element is included in summaries. 0..1 string Version of the system - if relevant
Extension.Slices for extension.extension:sicReasonCode.value[x].code This element is included in summaries. 1..1 code Code of the Kanta code system 'THL - Sic!-merkinnän syy'
Extension.Slices for extension.extension:sicReasonCode.value[x].display This element is included in summaries. 0..1 string Representation defined by the system
Extension.Slices for extension.extension:sicReasonCode.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:sicReasonText 0..* Extension Additional information on the Sic! notation
Extension.Slices for extension.extension:sicReasonText.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:sicReasonText.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:sicReasonText.url 1..1 uri "sicReasonText"
Extension.Slices for extension.extension:sicReasonText.value[x] 1..1 string Additional information on the Sic! notation
Extension.Slices for extension.extension:onlyTextDosageInUse 1..1 Extension Dosage instructions only as text
Extension.Slices for extension.extension:onlyTextDosageInUse.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:onlyTextDosageInUse.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:onlyTextDosageInUse.url 1..1 uri "onlyTextDosageInUse"
Extension.Slices for extension.extension:onlyTextDosageInUse.value[x] 1..1 boolean Dosage instructions only as text
Extension.Slices for extension.extension:dosageChangesAllowed 0..1 Extension Change of dosage instructions allowed
Extension.Slices for extension.extension:dosageChangesAllowed.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:dosageChangesAllowed.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:dosageChangesAllowed.url 1..1 uri "dosageChangesAllowed"
Extension.Slices for extension.extension:dosageChangesAllowed.value[x] 1..1 boolean Change of dosage instructions allowed
Extension.url 1..1 uri "http://resepti.kanta.fi/fhir/StructureDefinition/extension/dosageInfo"

doco Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: The weight of a patient under 12 years of age Sic! notation The reason for the Sic! notation Additional information on the Sic! notation Dosage instructions only as text Source

  • weightPatientUnder12YearsOld: Quantity: Information of the patient's weight and weight unit. The information is mandatory for patients under 12 years of age. It may also be recorded for older patients when it is necessary for prescribing the drug.
  • sicLabel: boolean: Information as to whether the prescription is intentionally prescribed in the written manner and should not be questioned (in Latin 'sic erat scriptum', in English 'as it had been written'). Primarily the 'Sic!' notation is used to indicate that the dosage of the prescribed drug stated in the prescription differs from normal dosage of the drug, but it may also be used if the drug is prescribed in a way that differs from standard treatment practices.
  • sicReasonCode: Coding: Classified justification for using the Sic! notation According to the Kanta code system 'THL - Sic!-merkinnän syy' Repeated information, there may be several reasons for justifying the use of the Sic! notation.
  • sicReasonText: string: If necessary, freely formatted additional information for using the Sic! notation on the prescription.
  • onlyTextDosageInUse: boolean: Information as to whether the dosage instructions for the prescribed medicine are recorded in free text by the author and structured dosage information has not been stored. If the value is False, the text-based dosage instructions are automatically formed on the basis of structured dosage information.
  • dosageChangesAllowed: boolean: Information on whether the prescriber allows a nurse or pharmacist to make changes to the dosage instructions on the prescription, in accordance with the treatment plan and section 5c of the Act on Electronic Prescriptions, by issuing a new prescription.

Differential View

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Weight of a patient under 12 years of age, information of the Sic! notation and dosage instructions only as text
Extension.Slices for extension 2..* 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:weightPatientUnder12YearsOld 0..1 Extension The weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.url 1..1 uri "weightPatientUnder12YearsOld"
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x] 1..1 Quantity The weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].value 1..1 decimal The weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].unit 1..1 string Unit of weight of a patient under 12 years of age
Extension.Slices for extension.extension:sicLabel 1..1 Extension Sic! notation
Extension.Slices for extension.extension:sicLabel.url 1..1 uri "sicLabel"
Extension.Slices for extension.extension:sicLabel.value[x] 1..1 boolean Sic! notation
Extension.Slices for extension.extension:sicReasonCode 0..* Extension The reason for the Sic! notation
Extension.Slices for extension.extension:sicReasonCode.url 1..1 uri "sicReasonCode"
Extension.Slices for extension.extension:sicReasonCode.value[x] 1..1 Coding The reason for the Sic! notation
Extension.Slices for extension.extension:sicReasonCode.value[x].system 1..1 uri OID of the Kanta code system 'THL - Sic!-merkinnän syy'
Fixed Value: urn:oid:1.2.246.537.6.615.202301 (no extensions allowed)
Extension.Slices for extension.extension:sicReasonCode.value[x].code 1..1 code Code of the Kanta code system 'THL - Sic!-merkinnän syy'
Extension.Slices for extension.extension:sicReasonText 0..* Extension Additional information on the Sic! notation
Extension.Slices for extension.extension:sicReasonText.url 1..1 uri "sicReasonText"
Extension.Slices for extension.extension:sicReasonText.value[x] 1..1 string Additional information on the Sic! notation
Extension.Slices for extension.extension:onlyTextDosageInUse 1..1 Extension Dosage instructions only as text
Extension.Slices for extension.extension:onlyTextDosageInUse.url 1..1 uri "onlyTextDosageInUse"
Extension.Slices for extension.extension:onlyTextDosageInUse.value[x] 1..1 boolean Dosage instructions only as text
Extension.Slices for extension.extension:dosageChangesAllowed 0..1 Extension Change of dosage instructions allowed
Extension.Slices for extension.extension:dosageChangesAllowed.url 1..1 uri "dosageChangesAllowed"
Extension.Slices for extension.extension:dosageChangesAllowed.value[x] 1..1 boolean Change of dosage instructions allowed
Extension.url 1..1 uri "http://resepti.kanta.fi/fhir/StructureDefinition/extension/dosageInfo"
Extension.value[x] 0..0 Value of extension

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Weight of a patient under 12 years of age, information of the Sic! notation and dosage instructions only as text
Extension.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension 2..* 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:weightPatientUnder12YearsOld 0..1 Extension The weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.url 1..1 uri "weightPatientUnder12YearsOld"
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x] 1..1 Quantity The weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].value This element is included in summaries. 1..1 decimal The weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].comparator This element is a modifier element. This element is included in summaries. 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].unit This element is included in summaries. 1..1 string Unit of weight of a patient under 12 years of age
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].system This element is included in summaries. C 0..1 uri System that defines coded unit form
Extension.Slices for extension.extension:weightPatientUnder12YearsOld.value[x].code This element is included in summaries. 0..1 code Coded form of the unit
Extension.Slices for extension.extension:sicLabel 1..1 Extension Sic! notation
Extension.Slices for extension.extension:sicLabel.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:sicLabel.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:sicLabel.url 1..1 uri "sicLabel"
Extension.Slices for extension.extension:sicLabel.value[x] 1..1 boolean Sic! notation
Extension.Slices for extension.extension:sicReasonCode 0..* Extension The reason for the Sic! notation
Extension.Slices for extension.extension:sicReasonCode.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:sicReasonCode.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:sicReasonCode.url 1..1 uri "sicReasonCode"
Extension.Slices for extension.extension:sicReasonCode.value[x] 1..1 Coding The reason for the Sic! notation
Extension.Slices for extension.extension:sicReasonCode.value[x].id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:sicReasonCode.value[x].extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:sicReasonCode.value[x].system This element is included in summaries. 1..1 uri OID of the Kanta code system 'THL - Sic!-merkinnän syy'
Fixed Value: urn:oid:1.2.246.537.6.615.202301 (no extensions allowed)
Extension.Slices for extension.extension:sicReasonCode.value[x].version This element is included in summaries. 0..1 string Version of the system - if relevant
Extension.Slices for extension.extension:sicReasonCode.value[x].code This element is included in summaries. 1..1 code Code of the Kanta code system 'THL - Sic!-merkinnän syy'
Extension.Slices for extension.extension:sicReasonCode.value[x].display This element is included in summaries. 0..1 string Representation defined by the system
Extension.Slices for extension.extension:sicReasonCode.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:sicReasonText 0..* Extension Additional information on the Sic! notation
Extension.Slices for extension.extension:sicReasonText.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:sicReasonText.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:sicReasonText.url 1..1 uri "sicReasonText"
Extension.Slices for extension.extension:sicReasonText.value[x] 1..1 string Additional information on the Sic! notation
Extension.Slices for extension.extension:onlyTextDosageInUse 1..1 Extension Dosage instructions only as text
Extension.Slices for extension.extension:onlyTextDosageInUse.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:onlyTextDosageInUse.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:onlyTextDosageInUse.url 1..1 uri "onlyTextDosageInUse"
Extension.Slices for extension.extension:onlyTextDosageInUse.value[x] 1..1 boolean Dosage instructions only as text
Extension.Slices for extension.extension:dosageChangesAllowed 0..1 Extension Change of dosage instructions allowed
Extension.Slices for extension.extension:dosageChangesAllowed.id 0..1 string Unique id for inter-element referencing
Extension.Slices for extension.extension:dosageChangesAllowed.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Extension.Slices for extension.extension:dosageChangesAllowed.url 1..1 uri "dosageChangesAllowed"
Extension.Slices for extension.extension:dosageChangesAllowed.value[x] 1..1 boolean Change of dosage instructions allowed
Extension.url 1..1 uri "http://resepti.kanta.fi/fhir/StructureDefinition/extension/dosageInfo"

doco Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: The weight of a patient under 12 years of age Sic! notation The reason for the Sic! notation Additional information on the Sic! notation Dosage instructions only as text Source

  • weightPatientUnder12YearsOld: Quantity: Information of the patient's weight and weight unit. The information is mandatory for patients under 12 years of age. It may also be recorded for older patients when it is necessary for prescribing the drug.
  • sicLabel: boolean: Information as to whether the prescription is intentionally prescribed in the written manner and should not be questioned (in Latin 'sic erat scriptum', in English 'as it had been written'). Primarily the 'Sic!' notation is used to indicate that the dosage of the prescribed drug stated in the prescription differs from normal dosage of the drug, but it may also be used if the drug is prescribed in a way that differs from standard treatment practices.
  • sicReasonCode: Coding: Classified justification for using the Sic! notation According to the Kanta code system 'THL - Sic!-merkinnän syy' Repeated information, there may be several reasons for justifying the use of the Sic! notation.
  • sicReasonText: string: If necessary, freely formatted additional information for using the Sic! notation on the prescription.
  • onlyTextDosageInUse: boolean: Information as to whether the dosage instructions for the prescribed medicine are recorded in free text by the author and structured dosage information has not been stored. If the value is False, the text-based dosage instructions are automatically formed on the basis of structured dosage information.
  • dosageChangesAllowed: boolean: Information on whether the prescriber allows a nurse or pharmacist to make changes to the dosage instructions on the prescription, in accordance with the treatment plan and section 5c of the Act on Electronic Prescriptions, by issuing a new prescription.

 

Other representations of profile: CSV, Excel, Schematron

Terminology Bindings

Path Status Usage ValueSet Version Source
Extension.extension:weightPatientUnder12YearsOld.​value[x].comparator Base required QuantityComparator 📍4.0.1 FHIR Std.

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()