{
"description": "DSTU2: `DeviceMetric.measurementPeriod` additional types (Timing) additional types from child elements (code, event, repeat, bounds[x], count, duration, durationMax, durationUnits, frequency, frequencyMax, period, periodMax, periodUnits, when)",
"_filename": "StructureDefinition-ext-R2-DeviceMetric.measurementPeriod.json",
"package_name": "hl7.fhir.uv.xver-r2.r4",
"date": "2026-03-17T21:02:03.8104715+00:00",
"derivation": "constraint",
"publisher": "FHIR Infrastructure",
"fhirVersion": "4.0.1",
"jurisdiction": [ {
"coding": [ {
"code": "001",
"system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
"display": "World"
} ]
} ],
"purpose": "This extension is part of the cross-version definitions generated to enable use of the\r\nelement `DeviceMetric.measurementPeriod` as defined in FHIR DSTU2\r\nin FHIR R4.\r\n\r\nThe source element is defined as:\r\n`DeviceMetric.measurementPeriod` 0..1 `Timing`\r\n\r\nAcross FHIR versions, the element set has been mapped as:\r\n* DSTU2: `DeviceMetric.measurementPeriod` 0..1 `Timing`\n* STU3: `DeviceMetric.measurementPeriod` 0..1 `Timing`\n* R4: `DeviceMetric.measurementPeriod` 0..1 `Timing`\r\n\r\nFollowing are the generation technical comments:\r\nElement `DeviceMetric.measurementPeriod` is mapped to FHIR R4 element `DeviceMetric.measurementPeriod` as `SourceIsBroaderThanTarget`.\nThe mappings for `DeviceMetric.measurementPeriod` do not cover the following types: Timing.\nThe mappings for `DeviceMetric.measurementPeriod` do not cover the following types based on type expansion: bounds[x], code, count, duration, durationMax, durationUnits, event, frequency, frequencyMax, period, periodMax, periodUnits, repeat, when.",
"name": "ExtensionDeviceMetric_MeasurementPeriod",
"mapping": [ {
"uri": "http://hl7.org/v3",
"name": "RIM Mapping",
"identity": "rim"
} ],
"abstract": false,
"type": "Extension",
"experimental": "false",
"resourceType": "StructureDefinition",
"title": "DSTU2: measurementPeriod additional types",
"package_version": "0.1.0",
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "fhir"
}, {
"url": "http://hl7.org/fhir/StructureDefinition/package-source",
"extension": [ {
"url": "packageId",
"valueId": "hl7.fhir.uv.xver-r2.r4"
}, {
"url": "version",
"valueString": "0.1.0"
}, {
"url": "uri",
"valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r2.r4"
} ]
}, {
"url": "http://hl7.org/fhir/StructureDefinition/version-specific-use",
"extension": [ {
"url": "startFhirVersion",
"valueCode": "4.0"
}, {
"url": "endFhirVersion",
"valueCode": "4.0"
} ]
}, {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger": 0,
"_valueInteger": {
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
"valueCanonical": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r2.r4"
} ]
}
}, {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode": "trial-use",
"_valueCode": {
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
"valueCanonical": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r2.r4"
} ]
}
} ],
"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|4.0.1",
"severity": "error",
"expression": "hasValue() or (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|4.0.1",
"severity": "error",
"expression": "extension.exists() != value.exists()"
} ],
"path": "Extension",
"min": 0,
"definition": "DSTU2: `DeviceMetric.measurementPeriod` additional types (Timing) additional types from child elements (code, event, repeat, bounds[x], count, duration, durationMax, durationUnits, frequency, frequencyMax, period, periodMax, periodUnits, when)",
"isModifier": false,
"short": "DSTU2: measurementPeriod additional types",
"max": "1",
"id": "Extension",
"condition": [ "ele-1" ],
"comment": "Element `DeviceMetric.measurementPeriod` is mapped to FHIR R4 element `DeviceMetric.measurementPeriod` as `SourceIsBroaderThanTarget`.\nThe mappings for `DeviceMetric.measurementPeriod` do not cover the following types: Timing.\nThe mappings for `DeviceMetric.measurementPeriod` do not cover the following types based on type expansion: bounds[x], code, count, duration, durationMax, durationUnits, event, frequency, frequencyMax, period, periodMax, periodUnits, repeat, when.",
"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.",
"isModifier": false,
"short": "Unique id for inter-element referencing",
"mapping": [ {
"map": "n/a",
"identity": "rim"
} ],
"type": [ {
"code": "http://hl7.org/fhirpath/System.String",
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "string"
} ]
} ],
"representation": [ "xmlAttr" ],
"max": "1",
"id": "Extension.id",
"base": {
"max": "1",
"min": 0,
"path": "Element.id"
},
"isSummary": false
}, {
"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|4.0.1",
"severity": "error",
"expression": "hasValue() or (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|4.0.1",
"severity": "error",
"expression": "extension.exists() != value.exists()"
} ],
"path": "Extension.extension",
"min": 0,
"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.",
"isModifier": false,
"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",
"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"
},
"isSummary": false
}, {
"path": "Extension.url",
"min": 1,
"definition": "Source of the definition for the extension code - a logical name or a URL.",
"isModifier": false,
"short": "identifies the meaning of the extension",
"fixedUri": "http://hl7.org/fhir/1.0/StructureDefinition/extension-DeviceMetric.measurementPeriod",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "http://hl7.org/fhirpath/System.String",
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "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"
},
"isSummary": false
}, {
"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|4.0.1",
"severity": "error",
"expression": "hasValue() or (children().count() > id.count())"
} ],
"path": "Extension.value[x]",
"min": 0,
"definition": "Describes the measurement repetition time. This is not necessarily the same as the update period. The measurement repetition time can range from milliseconds up to hours. An example for a measurement repetition time in the range of milliseconds is the sampling rate of an ECG. An example for a measurement repetition time in the range of hours is a NIBP that is triggered automatically every hour. The update period may be different than the measurement repetition time, if the device does not update the published observed value with the same frequency as it was measured.",
"isModifier": false,
"short": "Describes the measurement repetition time",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "Timing"
} ],
"max": "1",
"id": "Extension.value[x]",
"base": {
"max": "1",
"min": 0,
"path": "Extension.value[x]"
},
"isSummary": false
} ],
"extension": [ {
"url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
"valueString": "4.0.1"
} ]
},
"status": "active",
"id": "a70b8b4a-f4b2-415b-b40c-69e526af13fa",
"kind": "complex-type",
"url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-DeviceMetric.measurementPeriod",
"context": [ {
"type": "element",
"expression": "DeviceMetric.measurementPeriod"
} ],
"version": "0.1.0",
"differential": {
"element": [ {
"path": "Extension",
"min": 0,
"definition": "DSTU2: `DeviceMetric.measurementPeriod` additional types (Timing) additional types from child elements (code, event, repeat, bounds[x], count, duration, durationMax, durationUnits, frequency, frequencyMax, period, periodMax, periodUnits, when)",
"isModifier": false,
"short": "DSTU2: measurementPeriod additional types",
"max": "1",
"id": "Extension",
"comment": "Element `DeviceMetric.measurementPeriod` is mapped to FHIR R4 element `DeviceMetric.measurementPeriod` as `SourceIsBroaderThanTarget`.\nThe mappings for `DeviceMetric.measurementPeriod` do not cover the following types: Timing.\nThe mappings for `DeviceMetric.measurementPeriod` do not cover the following types based on type expansion: bounds[x], code, count, duration, durationMax, durationUnits, event, frequency, frequencyMax, period, periodMax, periodUnits, repeat, when.",
"base": {
"max": "*",
"min": 0,
"path": "Extension"
}
}, {
"id": "Extension.url",
"max": "1",
"min": 1,
"base": {
"max": "1",
"min": 1,
"path": "Extension.url"
},
"path": "Extension.url",
"fixedUri": "http://hl7.org/fhir/1.0/StructureDefinition/extension-DeviceMetric.measurementPeriod"
}, {
"id": "Extension.value[x]",
"max": "1",
"min": 0,
"base": {
"max": "1",
"min": 0,
"path": "Extension.value[x]"
},
"path": "Extension.value[x]",
"type": [ {
"code": "Timing"
} ],
"short": "Describes the measurement repetition time",
"definition": "Describes the measurement repetition time. This is not necessarily the same as the update period. The measurement repetition time can range from milliseconds up to hours. An example for a measurement repetition time in the range of milliseconds is the sampling rate of an ECG. An example for a measurement repetition time in the range of hours is a NIBP that is triggered automatically every hour. The update period may be different than the measurement repetition time, if the device does not update the published observed value with the same frequency as it was measured."
} ]
},
"contact": [ {
"name": "FHIR Infrastructure",
"telecom": [ {
"value": "http://www.hl7.org/Special/committees/fiwg",
"system": "url"
} ]
} ],
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension|4.0.1"
}