Kids First Implementation Guide - Local Development build (v0.1.0). See the Directory of published versions
Extension: age-at-event
Age (in days since birth) of the Kids First DRC Patient at time of event.
The official URL for this extension is:
http://fhir.kids-first.io/StructureDefinition/age-at-event
Status: draft
Extension maintained by: Kids First DRC
Context of Use
This extension may be used on the following element(s):
- Observation
- Condition
- Specimen
Usage info
Usage:
- Use this Extension: Kids First DRC Condition without Protected Health Information, Kids First DRC Condition, Kids First DRC Phenotype without Protected Health Information, Kids First DRC Phenotype, Kids First DRC Specimen without Protected Health Information, Kids First DRC Specimen, Kids First DRC Vital Status without Protected Health Information, Kids First DRC Vital Status
Formal Views of Extension Content
Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  Extension | SI | 0..1 | Extension | Age at event |
  id | 0..1 | string | Unique id for inter-element referencing | |
 extension | I | 0..* | Extension | Extension Slice: Unordered, Open by value:url |
| url | 1..1 | uri | "http://fhir.kids-first.io/StructureDefinition/age-at-event" | |
  value[x] | I | 0..1 | Age | Value of extension |
| Documentation for this format | ||||
This structure is derived from Extension
Differential View
This structure is derived from Extension
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| Extension | SI | 0..1 | Extension | Age at event |
| id | 0..1 | string | Unique id for inter-element referencing | |
| extension | I | 0..* | Extension | Extension Slice: Unordered, Open by value:url |
| url | 1..1 | uri | "http://fhir.kids-first.io/StructureDefinition/age-at-event" | |
| value[x] | I | 0..1 | Age | Value of extension |
| Documentation for this format | ||||
Other representations of extension: Schematron
Constraints
| Id | Path | Details | Requirements |
| ele-1 | Extension | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) | |
| ext-1 | Extension | Must have either extensions or value[x], not both : extension.exists() != value.exists() | |
| ele-1 | Extension.extension | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) | |
| ext-1 | Extension.extension | Must have either extensions or value[x], not both : extension.exists() != value.exists() | |
| ele-1 | Extension.value[x] | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |