FHIR IG Statistics: StructureDefinition/ch-emed-ratio-with-emed-units
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Resources that this resource uses
Narrative
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Source
{
"resourceType": "StructureDefinition",
"id": "ch-emed-ratio-with-emed-units",
"text": {
"status": "extensions",
"div": "<!-- snip (see above) -->"
},
"url": "http://fhir.ch/ig/ch-core/StructureDefinition/ch-emed-ratio-with-emed-units",
"version": "6.0.0-ci-build",
"name": "CHCoreRatioWithEmedUnits",
"title": "CH EMED Ratio with EMED Units",
"status": "active",
"date": "2025-05-22T06:27:11+00:00",
"publisher": "HL7 Switzerland",
"contact": [
{
"name": "HL7 Switzerland",
"telecom": [
{
"system": "url",
"value": "https://www.hl7.ch/"
}
]
},
{
"name": "HL7 Switzerland",
"telecom": [
{
"system": "url",
"value": "https://www.hl7.ch/",
"use": "work"
}
]
}
],
"description": "A ratio with defined units",
"jurisdiction": [
{
"coding": [
{
"system": "urn:iso:std:iso:3166",
"code": "CH"
}
]
}
],
"copyright": "CC0-1.0",
"fhirVersion": "4.0.1",
"mapping": [
{
"identity": "v2",
"uri": "http://hl7.org/v2",
"name": "HL7 v2 Mapping"
},
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "complex-type",
"abstract": false,
"type": "Ratio",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Ratio",
"derivation": "constraint",
"snapshot": {
"extension": [
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
"valueString": "4.0.1"
}
],
"element": [
{
"id": "Ratio",
"path": "Ratio",
"short": "A ratio of two Quantity values - a numerator and a denominator",
"definition": "A relationship of two Quantity values - expressed as a numerator and a denominator.",
"comment": "The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to \"1\", Quantity should be used instead of Ratio.",
"min": 0,
"max": "*",
"base": {
"path": "Ratio",
"min": 0,
"max": "*"
},
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() or (children().count() > id.count())",
"xpath": "@value|f:*|h:div",
"source": "http://hl7.org/fhir/StructureDefinition/Element"
},
{
"key": "rat-1",
"severity": "error",
"human": "Numerator and denominator SHALL both be present, or both are absent. If both are absent, there SHALL be some extension present",
"expression": "(numerator.empty() xor denominator.exists()) and (numerator.exists() or extension.exists())",
"xpath": "(count(f:numerator) = count(f:denominator)) and ((count(f:numerator) > 0) or (count(f:extension) > 0))",
"source": "http://hl7.org/fhir/StructureDefinition/Ratio"
}
],
"isModifier": false,
"mapping": [
{
"identity": "rim",
"map": "n/a"
},
{
"identity": "v2",
"map": "N/A"
},
{
"identity": "rim",
"map": "RTO"
}
]
},
{
"id": "Ratio.id",
"path": "Ratio.id",
"representation": [
"xmlAttr"
],
"short": "Unique id for inter-element referencing",
"definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
"min": 0,
"max": "1",
"base": {
"path": "Element.id",
"min": 0,
"max": "1"
},
"type": [
{
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "string"
}
],
"code": "http://hl7.org/fhirpath/System.String"
}
],
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Ratio.extension",
"path": "Ratio.extension",
"slicing": {
"discriminator": [
{
"type": "value",
"path": "url"
}
],
"description": "Extensions are always sliced by (at least) url",
"rules": "open"
},
"short": "Additional content defined by implementations",
"definition": "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.",
"comment": "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.",
"alias": [
"extensions",
"user content"
],
"min": 0,
"max": "*",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() or (children().count() > id.count())",
"xpath": "@value|f:*|h:div",
"source": "http://hl7.org/fhir/StructureDefinition/Element"
},
{
"key": "ext-1",
"severity": "error",
"human": "Must have either extensions or value[x], not both",
"expression": "extension.exists() != value.exists()",
"xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
"source": "http://hl7.org/fhir/StructureDefinition/Extension"
}
],
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Ratio.numerator",
"path": "Ratio.numerator",
"short": "Numerator value",
"definition": "The value of the numerator.",
"min": 1,
"max": "1",
"base": {
"path": "Ratio.numerator",
"min": 0,
"max": "1"
},
"type": [
{
"code": "Quantity",
"profile": [
"http://fhir.ch/ig/ch-core/StructureDefinition/ch-core-quantity-with-emed-units"
]
}
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() or (children().count() > id.count())",
"xpath": "@value|f:*|h:div",
"source": "http://hl7.org/fhir/StructureDefinition/Element"
}
],
"isModifier": false,
"isSummary": true,
"mapping": [
{
"identity": "rim",
"map": ".numerator"
}
]
},
{
"id": "Ratio.denominator",
"path": "Ratio.denominator",
"short": "Denominator value",
"definition": "The value of the denominator.",
"min": 1,
"max": "1",
"base": {
"path": "Ratio.denominator",
"min": 0,
"max": "1"
},
"type": [
{
"code": "Quantity",
"profile": [
"http://fhir.ch/ig/ch-core/StructureDefinition/ch-core-quantity-with-emed-units"
]
}
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() or (children().count() > id.count())",
"xpath": "@value|f:*|h:div",
"source": "http://hl7.org/fhir/StructureDefinition/Element"
}
],
"isModifier": false,
"isSummary": true,
"mapping": [
{
"identity": "rim",
"map": ".denominator"
}
]
}
]
},
"differential": {
"element": [
{
"id": "Ratio.numerator",
"path": "Ratio.numerator",
"min": 1,
"type": [
{
"code": "Quantity",
"profile": [
"http://fhir.ch/ig/ch-core/StructureDefinition/ch-core-quantity-with-emed-units"
]
}
]
},
{
"id": "Ratio.denominator",
"path": "Ratio.denominator",
"min": 1,
"type": [
{
"code": "Quantity",
"profile": [
"http://fhir.ch/ig/ch-core/StructureDefinition/ch-core-quantity-with-emed-units"
]
}
]
}
]
}
}
Ratio 
numerator 
FHIR