DvProportion - Definitions - EHDS openEHR data exchange v0.1.0

EHDS openEHR data exchange
0.1.0 - ci-build

EHDS openEHR data exchange, published by Ian. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/freshehr/EHDS-openEHR-FHIR-IG/ and changes regularly. See the Directory of published versions

Logical Model: DvProportion - Detailed Descriptions

Draft as of 2026-03-25

Definitions for the DvProportion 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. DvProportion
Definition	openEHR Proportion A string which has at least one character and no leading or trailing whitespace and where there is no whitespace other than single spaces in the contents
Short	ProportionPrimitive Type code
Control	0..*
Is Modifier	false
Logical Model	Instances of this logical model are not marked to be the target of a Reference
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) Type_validity: Type validity (`null # TODO: manual translation needed`) Precision_validity: Precision validity must satisfy conditional constraints (`precision = 0 implies is_integral()`) Is_integral_validity: Is integral validity must satisfy conditional constraints (`is_integral() implies (numerator.floor = numerator and denominator.floor = denominator)`) Fraction_validity: Fraction validity must satisfy conditional constraints (`(type = pk_fraction or type = pk_integer_fraction) implies is_integral()`) Unitary_validity: Unitary validity must satisfy conditional constraints (`null # TODO: manual translation needed`) Percent_validity: Percent validity must satisfy conditional constraints (`null # TODO: manual translation needed`) Valid_denominator: Valid denominator (`null # TODO: manual translation needed`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
2. DvProportion.id
Definition	unique id for the element within a resource (for internal references) Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short	xml:id (or equivalent in JSON)Unique id for inter-element referencing
Control	0..1
Type	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
4. DvProportion.extension
Definition	May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	Additional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`) ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
6. DvProportion.value
Definition	Primitive value for code The actual value
Short	Primitive value for codePrimitive value for string
Control	0..1
Type	codestring
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
Max Length:	1048576
8. DvProportion.numerator
Definition	Numerator of ratio
Short	Numerator of ratio
Control	1..1
Type	decimal
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
10. DvProportion.denominator
Definition	Denominator of ratio.
Short	Denominator of ratio.
Control	1..1
Type	decimal
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
12. DvProportion.type
Definition	Indicates semantic type of proportion, including percent, unitary etc.
Short	Indicates semantic type of proportion, including percent, unitary etc.
Control	1..1
Type	integer
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
14. DvProportion.precision
Definition	Precision to which the `_numerator_` and `_denominator_` values of the proportion are expressed, in terms of number of decimal places. The value 0 implies an integral quantity. The value -1 implies no limit, i.e. any number of decimal places.
Short	Precision to which the `_numerator_` and `_denominator_` values of the proportion are expressed, in terms of number of decimal places.
Control	0..1
Type	integer
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
16. DvProportion.normal-range
Definition	Optional normal range.
Short	Optional normal range.
Control	0..1
Type	http://openehr.org/fhir/StructureDefinition/DV-INTERVAL<http://openehr.org/fhir/StructureDefinition/DV-PROPORTION>
Is Modifier	false
18. DvProportion.other-reference-ranges
Definition	Optional tagged other reference ranges for this value in its particular measurement context.
Short	Optional tagged other reference ranges for this value in its particular measurement context.
Control	0..*
Type	http://openehr.org/fhir/StructureDefinition/REFERENCE-RANGE<http://openehr.org/fhir/StructureDefinition/DV-PROPORTION>
Is Modifier	false

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

0. DvProportion
Definition	openEHR Proportion
Short	Proportion
Logical Model	Instances of this logical model are not marked to be the target of a Reference

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

0. DvProportion
Definition	openEHR Proportion
Short	Proportion
Control	0..*
Is Modifier	false
Logical Model	Instances of this logical model are not marked to be the target of a Reference
Summary	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) Type_validity: Type validity (`null # TODO: manual translation needed`) Precision_validity: Precision validity must satisfy conditional constraints (`precision = 0 implies is_integral()`) Is_integral_validity: Is integral validity must satisfy conditional constraints (`is_integral() implies (numerator.floor = numerator and denominator.floor = denominator)`) Fraction_validity: Fraction validity must satisfy conditional constraints (`(type = pk_fraction or type = pk_integer_fraction) implies is_integral()`) Unitary_validity: Unitary validity must satisfy conditional constraints (`null # TODO: manual translation needed`) Percent_validity: Percent validity must satisfy conditional constraints (`null # TODO: manual translation needed`) Valid_denominator: Valid denominator (`null # TODO: manual translation needed`)
2. DvProportion.id
Definition	unique id for the element within a resource (for internal references)
Short	xml:id (or equivalent in JSON)
Control	0..1
Type	string
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
4. DvProportion.extension
Definition	May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Short	Additional content defined by implementations
Comments	There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Control	0..*
Type	Extension
Is Modifier	false
Summary	false
Alternate Names	extensions, user content
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
6. DvProportion.value
Definition	Primitive value for code
Short	Primitive value for code
Control	0..1
Type	code
Is Modifier	false
XML Format	In the XML format, this property is represented as an attribute.
Summary	false
8. DvProportion.numerator
Definition	Numerator of ratio
Short	Numerator of ratio
Control	1..1
Type	decimal
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
10. DvProportion.denominator
Definition	Denominator of ratio.
Short	Denominator of ratio.
Control	1..1
Type	decimal
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
12. DvProportion.type
Definition	Indicates semantic type of proportion, including percent, unitary etc.
Short	Indicates semantic type of proportion, including percent, unitary etc.
Control	1..1
Type	integer
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
14. DvProportion.precision
Definition	Precision to which the `_numerator_` and `_denominator_` values of the proportion are expressed, in terms of number of decimal places. The value 0 implies an integral quantity. The value -1 implies no limit, i.e. any number of decimal places.
Short	Precision to which the `_numerator_` and `_denominator_` values of the proportion are expressed, in terms of number of decimal places.
Control	0..1
Type	integer
Is Modifier	false
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
16. DvProportion.normal-range
Definition	Optional normal range.
Short	Optional normal range.
Control	0..1
Type	http://openehr.org/fhir/StructureDefinition/DV-INTERVAL<http://openehr.org/fhir/StructureDefinition/DV-PROPORTION>
Is Modifier	false
18. DvProportion.other-reference-ranges
Definition	Optional tagged other reference ranges for this value in its particular measurement context.
Short	Optional tagged other reference ranges for this value in its particular measurement context.
Control	0..*
Type	http://openehr.org/fhir/StructureDefinition/REFERENCE-RANGE<http://openehr.org/fhir/StructureDefinition/DV-PROPORTION>
Is Modifier	false

Links: Table of Contents | QA Report

The Xt-EHR action is co-funded by the European Union, EU4Health Program 2021-2027, under Grant Agreement Nr.º 101128085.