Nictiz FHIR NL STU3 Zib2017 - Local Development build (v1.3.15) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions
Extension: Period Duration
| Official URL: http://nictiz.nl/fhir/StructureDefinition/period-duration | Version: 1.3.15 | |||
| Active as of 2025-09-22 | Computable Name: Period Duration | |||
Copyright/Legal: CC0 |
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The duration of the period. Specifying a duration can only be done in conjunction with Period.start or Period.end. Example: 24 hours in a 24 hour urine specimen (which is a core element Specimen.collection.duration from FHIR R4 onwards).
Context of Use
This extension may be used on the following element(s):
- Element ID Period
Usage info
Usages:
- Use this Extension: HCIM LaboratoryTestResult Specimen Isolate and HCIM LaboratoryTestResult Specimen
You can also check for usages in the FHIR IG Statistics
Formal Views of Extension Content
Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.
This structure is derived from Extension
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter:   |
|---|---|---|---|---|
  Extension |
0..* | Extension | Extension | |
 url |
1..1 | uri | "http://nictiz.nl/fhir/StructureDefinition/period-duration" | |
  Slices for valueDuration |
Content/Rules for all slices | |||
   valueDuration:valueDuration |
0..1 | Duration | Duration | |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..* | Extension | Extension | |
 id |
0..1 | string | xml:id (or equivalent in JSON) | |
 extension |
0..* | Extension | Additional Content defined by implementations Slice: Unordered, Open by value:url | |
| url |
1..1 | uri | "http://nictiz.nl/fhir/StructureDefinition/period-duration" | |
| Slices for value[x] |
0..1 | Duration | Value of extension Slice: Unordered, Closed by type:$this | |
| value[x]:valueDuration |
0..1 | Duration | Duration | |
| Documentation for this format | ||||
This structure is derived from Extension
Differential View
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..* | Extension | Extension | |
| url |
1..1 | uri | "http://nictiz.nl/fhir/StructureDefinition/period-duration" | |
| Slices for valueDuration |
Content/Rules for all slices | |||
| valueDuration:valueDuration |
0..1 | Duration | Duration | |
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..* | Extension | Extension | |
| id |
0..1 | string | xml:id (or equivalent in JSON) | |
| extension |
0..* | Extension | Additional Content defined by implementations Slice: Unordered, Open by value:url | |
| url |
1..1 | uri | "http://nictiz.nl/fhir/StructureDefinition/period-duration" | |
| Slices for value[x] |
0..1 | Duration | Value of extension Slice: Unordered, Closed by type:$this | |
| value[x]:valueDuration |
0..1 | Duration | Duration | |
| Documentation for this format | ||||
Other representations of profile: CSV, Excel, Schematron
Constraints
| Id | Grade | Path(s) | Details | Requirements |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children : hasValue() | (children().count() > id.count()) | |
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both : extension.exists() != value.exists() |