CQDG_FHIR_IG - Local Development build (v0.1.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions
Extension: Ferlab.bio Extension/age-at-recruitment
| Official URL: https://fhir.cqdg.ca/StructureDefinition/AgeAtRecruitment | Version: 0.1.0 | |||
| Draft as of 2025-08-20 | Computable Name: AgeAtRecruitment | |||
Patient's age (in days since birth) at the time of recruitment
Context of Use
-
Element ID:
ClinicalImpression
This extension may be used on the following element(s)
Usage info
Usages:
- Use this Extension: Ferlab.bio StructureDefinition/cqdg-patient
- Examples for this Extension: Patient/PatientExample
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
| Name | Flags | Card. | Type | Description & Constraints Filter:   |
|---|---|---|---|---|
  Extension |
S | 0..1 | Extension | Age at recruitment |
  extension |
0..0 | |||
| url |
1..1 | uri | "https://fhir.cqdg.ca/StructureDefinition/AgeAtRecruitment" | |
  value[x] |
0..1 | CodeableConcept | Value of extension | |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
S | 0..1 | Extension | Age at recruitment |
 id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..0 | |||
| url |
1..1 | uri | "https://fhir.cqdg.ca/StructureDefinition/AgeAtRecruitment" | |
| value[x] |
0..1 | CodeableConcept | Value of extension | |
| 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 |
S | 0..1 | Extension | Age at recruitment |
| extension |
0..0 | |||
| url |
1..1 | uri | "https://fhir.cqdg.ca/StructureDefinition/AgeAtRecruitment" | |
| value[x] |
0..1 | CodeableConcept | Value of extension | |
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
S | 0..1 | Extension | Age at recruitment |
| id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..0 | |||
| url |
1..1 | uri | "https://fhir.cqdg.ca/StructureDefinition/AgeAtRecruitment" | |
| value[x] |
0..1 | CodeableConcept | Value of extension | |
| Documentation for this format | ||||
This structure is derived from Extension
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() or (children().count() > id.count()) | |
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both : extension.exists() != value.exists() |