SpaceflightHealthSimulationsReferenceDocumentation - Local Development build (v0.5.12) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions
Extension: Training Session Duration
| Official URL: https://mitre.org/fhir/space-health/StructureDefinition/session-duration | Version: 0.5.12 | |||
| Draft as of 2026-03-25 | Computable Name: SessionDuration | |||
Duration of the neutral buoyancy training session
Context of Use
-
Element ID:
Element
This extension may be used on the following element(s)
Usage info
Usages:
- Use this Extension: Neutral Buoyancy Training Session and Enhanced Neutral Buoyancy Training Session
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 |
0..* | Extension | Training Session Duration | |
  id |
0..1 | string | Unique id for inter-element referencing | |
 extension |
0..0 | Extension Slice: Unordered, Open by value:url | ||
| url |
1..1 | uri | "https://mitre.org/fhir/space-health/StructureDefinition/session-duration" | |
  value[x] |
0..1 | Duration | 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 Filter: |
|---|---|---|---|---|
| Extension |
0..* | Extension | Training Session Duration | |
| id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..0 | Extension Slice: Unordered, Open by value:url | ||
| url |
1..1 | uri | "https://mitre.org/fhir/space-health/StructureDefinition/session-duration" | |
| value[x] |
0..1 | Duration | 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) | Description | Expression |
| 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()
|