FHIR IG analytics| Package | hl7.fhir.us.dapl |
| Resource Type | StructureDefinition |
| Id | StructureDefinition-dapl-deidentified-instant-extension.json |
| FHIR Version | R4 |
| Source | https://build.fhir.org/ig/HL7/fhir-dapl/StructureDefinition-dapl-deidentified-instant-extension.html |
| URL | http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-deidentified-instant-extension |
| Version | 1.0.0-ballot |
| Status | active |
| Date | 2026-03-27 |
| Name | DAPLDeIdentifiedInstantExtension |
| Title | DAPL De-Identified Instant Extension |
| Realm | us |
| Authority | hl7 |
| Description | Indicates the de-identified instant that can be used for any clinical event |
| Type | Extension |
| Kind | complex-type |
| StructureDefinition | ||
| hl7.fhir.us.dapl#current | dapl-clinical-result-observation | DAPL Clinical Result Observation |
No resources found
| Resource | Version |
|---|---|
| hl7.fhir.us.dapl#current:Observation/de-identified-clinical-result-observation-example | R4 |
Note: links and images are rebased to the (stated) source
Generated Narrative: StructureDefinition dapl-deidentified-instant-extension
version: 1; Last updated: 2026-03-27 02:03:21+0000
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  Extension | 1..1 | Extension | Indicates the time with a precision of only Year. | |
  url | 1..1 | uri | "http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-deidentified-instant-extension" | |
 value[x] | C | 1..1 | dateTime | Value of extension Constraints: dapl-datetime-1, dapl-datetime-1a |
| Documentation for this format | ||||
FHIR
FHIRsmith{
"resourceType": "StructureDefinition",
"id": "dapl-deidentified-instant-extension",
"meta": {
"versionId": "1",
"lastUpdated": "2026-03-27T02:03:21.911+00:00"
},
"text": {
"status": "extensions",
"div": "<!-- snip (see above) -->"
},
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "cgp"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger": 2,
"_valueInteger": {
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
"valueCanonical": "http://hl7.org/fhir/us/dapl/ImplementationGuide/dapl"
}
]
}
},
{
"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/us/dapl/ImplementationGuide/dapl"
}
]
}
}
],
"url": "http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-deidentified-instant-extension",
"version": "1.0.0-ballot",
"name": "DAPLDeIdentifiedInstantExtension",
"title": "DAPL De-Identified Instant Extension",
"status": "active",
"experimental": false,
"date": "2026-03-27",
"publisher": "HL7 International / Cross-Group Projects",
"contact": [
{
"telecom": [
{
"system": "url",
"value": "http://www.hl7.org/Special/committees/cgp"
}
]
}
],
"description": "Indicates the de-identified instant that can be used for any clinical event",
"jurisdiction": [
{
"coding": [
{
"system": "urn:iso:std:iso:3166",
"code": "US"
}
]
}
],
"fhirVersion": "4.0.1",
"mapping": [
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "complex-type",
"abstract": false,
"context": [
{
"type": "element",
"expression": "Observation"
},
{
"type": "element",
"expression": "Condition"
}
],
"type": "Extension",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
"derivation": "constraint",
"snapshot": {
"extension": [
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
"valueString": "4.0.1"
}
],
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "Indicates the time with a precision of only Year.",
"definition": "Indicates the time with a precision of only Year. This extension is to be used in lieu of data elements of type instant present within a FHIR Resource ",
"min": 1,
"max": "1",
"base": {
"path": "Extension",
"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": "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
},
{
"id": "Extension.id",
"path": "Extension.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": "Extension.extension",
"path": "Extension.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": "Extension.url",
"path": "Extension.url",
"representation": [
"xmlAttr"
],
"short": "identifies the meaning of the extension",
"definition": "Source of the definition for the extension code - a logical name or a 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.",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"type": [
{
"code": "uri"
}
],
"fixedUri": "http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-deidentified-instant-extension",
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Value of extension",
"definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list).",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "dateTime"
}
],
"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": "dapl-datetime-1",
"severity": "error",
"human": "All dateTime data elements should be truncated to a year only for de-identified resources.",
"expression": "$this is DateTime implies $this.toString().length() = 4"
},
{
"key": "dapl-datetime-1a",
"severity": "error",
"human": "All dateTime data elements should have valid year > 1900",
"expression": "$this is DateTime implies $this.toString() >= '1900'"
}
],
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
}
]
},
"differential": {
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "Indicates the time with a precision of only Year.",
"definition": "Indicates the time with a precision of only Year. This extension is to be used in lieu of data elements of type instant present within a FHIR Resource ",
"min": 1,
"max": "1"
},
{
"id": "Extension.url",
"path": "Extension.url",
"type": [
{
"code": "uri"
}
],
"fixedUri": "http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-deidentified-instant-extension"
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"min": 1,
"max": "1",
"type": [
{
"code": "dateTime"
}
],
"constraint": [
{
"key": "dapl-datetime-1",
"severity": "error",
"human": "All dateTime data elements should be truncated to a year only for de-identified resources.",
"expression": "$this is DateTime implies $this.toString().length() = 4"
},
{
"key": "dapl-datetime-1a",
"severity": "error",
"human": "All dateTime data elements should have valid year > 1900",
"expression": "$this is DateTime implies $this.toString() >= '1900'"
}
]
}
]
}
}