{
"description": "The range within which, at the given level of confidence, the actual value resides. For example, a nominal value (from the context Observation.value) of 4.3 may be reported, but this extension may be used to indicate that the reporting device is only 95% confident that the actual value is in the range of 3.1 to 5.5.\\n\\nThe reported value, if present, should be precise enough to reflect the confidence interval. For example, a nominal quantity of 3.2 kg with a confidence interval of [3.21, 3.27] kg would be nonsensical. On the other hand, a reported value of 3.24 kg with a 95% confidence interval of [3.21, 3.27] kg would indicate a 95% confidence that the actual value is in that range.\\n\\nThe reported value need not be at the center of the confidence interval; for example, if the values don't follow a normal distribution. The context Observation.value SHOULD be present when this extension is used, due to the risk that systems unfamiliar with (or ignoring) this extension may be unable to process a valueless quantity.\\n\\nThe interval range low and high units are usually the same as the reported value's units. Confidence interval range low and high units SHOULD be provided for clarity; if omitted, they are implied to be the same as the reported value's units.",
"_filename": "StructureDefinition-quantity-confidenceInterval.json",
"package_name": "hl7.fhir.uv.extensions.r3",
"date": "2025-07-17",
"derivation": "constraint",
"publisher": "HL7 International / Orders and Observations",
"contextInvariant": [ "$this is Quantity" ],
"fhirVersion": "3.0.2",
"jurisdiction": [ {
"coding": [ {
"code": "001",
"system": "http://unstats.un.org/unsd/methods/m49/m49.htm"
} ]
} ],
"name": "QuantityConfidenceInterval",
"mapping": [ {
"uri": "http://hl7.org/v3",
"name": "RIM Mapping",
"identity": "rim"
} ],
"abstract": false,
"type": "Extension",
"experimental": "true",
"resourceType": "StructureDefinition",
"title": "Quantity Confidence Interval",
"package_version": "5.3.0-ballot-tc",
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "oo"
}, {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode": "draft"
}, {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger": 0
}, {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics",
"valueCode": "can-bind"
} ],
"snapshot": {
"element": [ {
"constraint": [ {
"key": "ele-1",
"human": "All FHIR elements must have a @value or children",
"xpath": "@value|f:*|h:div",
"source": "http://hl7.org/fhir/StructureDefinition/Element",
"severity": "error",
"expression": "hasValue() | (children().count() > id.count())"
}, {
"key": "ext-1",
"human": "Must have either extensions or value[x], not both",
"xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
"source": "http://hl7.org/fhir/StructureDefinition/Extension",
"severity": "error",
"expression": "extension.exists() != value.exists()"
} ],
"path": "Extension",
"min": 0,
"definition": "The range within which, at the given level of confidence, the actual value resides.",
"short": "Confidence interval for the quantity",
"max": "1",
"id": "Extension",
"condition": [ "ele-1" ],
"base": {
"max": "*",
"min": 0,
"path": "Extension"
}
}, {
"path": "Extension.id",
"min": 0,
"definition": "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)",
"mapping": [ {
"map": "n/a",
"identity": "rim"
} ],
"type": [ {
"code": "string"
} ],
"representation": [ "xmlAttr" ],
"max": "1",
"id": "Extension.id",
"base": {
"max": "1",
"min": 0,
"path": "Element.id"
}
}, {
"path": "Extension.extension",
"min": 2,
"definition": "An Extension",
"short": "Extension",
"slicing": {
"rules": "closed",
"description": "Extensions are always sliced by (at least) url",
"discriminator": [ {
"path": "url",
"type": "value"
} ]
},
"type": [ {
"code": "Extension"
} ],
"max": "*",
"id": "Extension.extension",
"base": {
"max": "*",
"min": 0,
"path": "Element.extension"
}
}, {
"path": "Extension.extension",
"min": 1,
"definition": "The degree of confidence that the actual value is within the interval, as a percent (0..100).",
"short": "The confidence level in percent (0..100)",
"type": [ {
"code": "Extension"
} ],
"sliceName": "confidence",
"max": "1",
"id": "Extension.extension:confidence",
"base": {
"max": "*",
"min": 0,
"path": "Element.extension"
}
}, {
"path": "Extension.extension.id",
"min": 0,
"definition": "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)",
"mapping": [ {
"map": "n/a",
"identity": "rim"
} ],
"type": [ {
"code": "string"
} ],
"representation": [ "xmlAttr" ],
"max": "1",
"id": "Extension.extension:confidence.id",
"base": {
"max": "1",
"min": 0,
"path": "Element.id"
}
}, {
"path": "Extension.extension.extension",
"min": 0,
"definition": "May be used to represent additional information that is not part of the basic definition of the element. In order 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 is allowed to 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",
"mapping": [ {
"map": "n/a",
"identity": "rim"
} ],
"slicing": {
"rules": "open",
"description": "Extensions are always sliced by (at least) url",
"discriminator": [ {
"path": "url",
"type": "value"
} ]
},
"type": [ {
"code": "Extension"
} ],
"alias": [ "extensions", "user content" ],
"max": "*",
"id": "Extension.extension:confidence.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.",
"base": {
"max": "*",
"min": 0,
"path": "Element.extension"
}
}, {
"path": "Extension.extension.url",
"min": 1,
"definition": "Source of the definition for the extension code - a logical name or a URL.",
"short": "identifies the meaning of the extension",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "uri"
} ],
"representation": [ "xmlAttr" ],
"max": "1",
"id": "Extension.extension:confidence.url",
"comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
"base": {
"max": "1",
"min": 1,
"path": "Extension.url"
}
}, {
"path": "Extension.extension.value[x]",
"min": 1,
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"short": "Value of extension",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "decimal"
} ],
"max": "1",
"id": "Extension.extension:confidence.value[x]",
"base": {
"max": "1",
"min": 0,
"path": "Extension.value[x]"
}
}, {
"path": "Extension.extension",
"min": 1,
"definition": "The range within which the actual value is expected to reside.",
"short": "Range in which actual value is expected to reside",
"type": [ {
"code": "Extension"
} ],
"sliceName": "interval",
"max": "1",
"id": "Extension.extension:interval",
"base": {
"max": "*",
"min": 0,
"path": "Element.extension"
}
}, {
"path": "Extension.extension.id",
"min": 0,
"definition": "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)",
"mapping": [ {
"map": "n/a",
"identity": "rim"
} ],
"type": [ {
"code": "string"
} ],
"representation": [ "xmlAttr" ],
"max": "1",
"id": "Extension.extension:interval.id",
"base": {
"max": "1",
"min": 0,
"path": "Element.id"
}
}, {
"path": "Extension.extension.extension",
"min": 0,
"definition": "May be used to represent additional information that is not part of the basic definition of the element. In order 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 is allowed to 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",
"mapping": [ {
"map": "n/a",
"identity": "rim"
} ],
"slicing": {
"rules": "open",
"description": "Extensions are always sliced by (at least) url",
"discriminator": [ {
"path": "url",
"type": "value"
} ]
},
"type": [ {
"code": "Extension"
} ],
"alias": [ "extensions", "user content" ],
"max": "*",
"id": "Extension.extension:interval.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.",
"base": {
"max": "*",
"min": 0,
"path": "Element.extension"
}
}, {
"path": "Extension.extension.url",
"min": 1,
"definition": "Source of the definition for the extension code - a logical name or a URL.",
"short": "identifies the meaning of the extension",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "uri"
} ],
"representation": [ "xmlAttr" ],
"max": "1",
"id": "Extension.extension:interval.url",
"comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
"base": {
"max": "1",
"min": 1,
"path": "Extension.url"
}
}, {
"path": "Extension.extension.value[x]",
"min": 0,
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"short": "Value of extension",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "Range"
} ],
"max": "1",
"id": "Extension.extension:interval.value[x]",
"base": {
"max": "1",
"min": 0,
"path": "Extension.value[x]"
}
}, {
"path": "Extension.extension.value[x].id",
"min": 0,
"definition": "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)",
"mapping": [ {
"map": "n/a",
"identity": "rim"
} ],
"type": [ {
"code": "string"
} ],
"representation": [ "xmlAttr" ],
"max": "1",
"id": "Extension.extension:interval.value[x].id",
"base": {
"max": "1",
"min": 0,
"path": "Element.id"
}
}, {
"path": "Extension.extension.value[x].extension",
"min": 0,
"definition": "May be used to represent additional information that is not part of the basic definition of the element. In order 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 is allowed to 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",
"mapping": [ {
"map": "n/a",
"identity": "rim"
} ],
"slicing": {
"rules": "open",
"description": "Extensions are always sliced by (at least) url",
"discriminator": [ {
"path": "url",
"type": "value"
} ]
},
"type": [ {
"code": "Extension"
} ],
"alias": [ "extensions", "user content" ],
"max": "*",
"id": "Extension.extension:interval.value[x].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.",
"base": {
"max": "*",
"min": 0,
"path": "Element.extension"
}
}, {
"path": "Extension.extension.value[x].low",
"min": 1,
"definition": "The low limit. The boundary is inclusive.",
"short": "The lower bound of the confidence interval",
"mapping": [ {
"map": "NR.1",
"identity": "v2"
}, {
"map": "./low",
"identity": "rim"
} ],
"type": [ {
"code": "Quantity",
"profile": "http://hl7.org/fhir/StructureDefinition/SimpleQuantity"
} ],
"max": "1",
"id": "Extension.extension:interval.value[x].low",
"condition": [ "rng-2" ],
"comment": "If the low element is missing, the low boundary is not known.",
"base": {
"max": "1",
"min": 0,
"path": "Range.low"
},
"isSummary": true
}, {
"path": "Extension.extension.value[x].high",
"min": 1,
"definition": "The high limit. The boundary is inclusive.",
"short": "The upper bound of the confidence interval",
"mapping": [ {
"map": "NR.2",
"identity": "v2"
}, {
"map": "./high",
"identity": "rim"
} ],
"type": [ {
"code": "Quantity",
"profile": "http://hl7.org/fhir/StructureDefinition/SimpleQuantity"
} ],
"max": "1",
"id": "Extension.extension:interval.value[x].high",
"condition": [ "rng-2" ],
"comment": "If the high element is missing, the high boundary is not known.",
"base": {
"max": "1",
"min": 0,
"path": "Range.high"
},
"isSummary": true
}, {
"path": "Extension.url",
"min": 1,
"definition": "Source of the definition for the extension code - a logical name or a URL.",
"short": "identifies the meaning of the extension",
"fixedUri": "http://hl7.org/fhir/StructureDefinition/quantity-confidenceInterval",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "uri"
} ],
"representation": [ "xmlAttr" ],
"max": "1",
"id": "Extension.url",
"comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
"base": {
"max": "1",
"min": 1,
"path": "Extension.url"
}
}, {
"path": "Extension.value[x]",
"min": 0,
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"short": "Value of extension",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "base64Binary"
}, {
"code": "boolean"
}, {
"code": "code"
}, {
"code": "date"
}, {
"code": "dateTime"
}, {
"code": "decimal"
}, {
"code": "id"
}, {
"code": "instant"
}, {
"code": "integer"
}, {
"code": "markdown"
}, {
"code": "oid"
}, {
"code": "positiveInt"
}, {
"code": "string"
}, {
"code": "time"
}, {
"code": "unsignedInt"
}, {
"code": "uri"
}, {
"code": "Address"
}, {
"code": "Age"
}, {
"code": "Annotation"
}, {
"code": "Attachment"
}, {
"code": "CodeableConcept"
}, {
"code": "Coding"
}, {
"code": "ContactPoint"
}, {
"code": "Count"
}, {
"code": "Distance"
}, {
"code": "Duration"
}, {
"code": "HumanName"
}, {
"code": "Identifier"
}, {
"code": "Money"
}, {
"code": "Period"
}, {
"code": "Quantity"
}, {
"code": "Range"
}, {
"code": "Ratio"
}, {
"code": "Reference"
}, {
"code": "SampledData"
}, {
"code": "Signature"
}, {
"code": "Timing"
}, {
"code": "Meta"
} ],
"max": "1",
"id": "Extension.value[x]",
"base": {
"max": "1",
"min": 0,
"path": "Extension.value[x]"
}
} ]
},
"status": "draft",
"id": "0b6620d9-ce7e-47e1-aa3f-71e4f0eadbdb",
"kind": "complex-type",
"url": "http://hl7.org/fhir/StructureDefinition/quantity-confidenceInterval",
"context": [ "Observation.value[x]", "Observation.component.value[x]" ],
"version": "5.3.0-ballot-tc",
"differential": {
"element": [ {
"id": "Extension",
"max": "1",
"path": "Extension",
"short": "Confidence interval for the quantity",
"definition": "The range within which, at the given level of confidence, the actual value resides."
}, {
"id": "Extension.extension",
"min": 2,
"path": "Extension.extension",
"slicing": {
"rules": "closed",
"discriminator": [ {
"path": "url",
"type": "value"
} ]
}
}, {
"id": "Extension.extension:confidence",
"max": "1",
"min": 1,
"path": "Extension.extension",
"type": [ {
"code": "Extension"
} ],
"short": "The confidence level in percent (0..100)",
"sliceName": "confidence",
"definition": "The degree of confidence that the actual value is within the interval, as a percent (0..100)."
}, {
"id": "Extension.extension:confidence.value[x]",
"min": 1,
"path": "Extension.extension.value[x]",
"type": [ {
"code": "decimal"
} ]
}, {
"id": "Extension.extension:interval",
"max": "1",
"min": 1,
"path": "Extension.extension",
"type": [ {
"code": "Extension"
} ],
"short": "Range in which actual value is expected to reside",
"sliceName": "interval",
"definition": "The range within which the actual value is expected to reside."
}, {
"id": "Extension.extension:interval.value[x]",
"path": "Extension.extension.value[x]",
"type": [ {
"code": "Range"
} ]
}, {
"id": "Extension.extension:interval.valueRange.low",
"min": 1,
"path": "Extension.extension.valueRange.low",
"short": "The lower bound of the confidence interval"
}, {
"id": "Extension.extension:interval.valueRange.high",
"min": 1,
"path": "Extension.extension.valueRange.high",
"short": "The upper bound of the confidence interval"
}, {
"id": "Extension.url",
"path": "Extension.url",
"fixedUri": "http://hl7.org/fhir/StructureDefinition/quantity-confidenceInterval"
} ]
},
"contact": [ {
"telecom": [ {
"value": "http://www.hl7.org/Special/committees/orders",
"system": "url"
} ]
} ],
"contextType": "resource",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}