3.20.6 Extension: Communication Topic - Detailed Descriptions
Definitions for the ext-communication-topic Extension
| Extension | |
| Definition | A resource being discussed as part of this communication |
| Control | 0..1 |
| Must Support | true |
| Extension.id | |
| Definition | unique id for the element within a resource (for internal references). |
| Control | 0..1 |
| Type | id |
| Max Length | 0 |
| Extension.extension(extension) | |
| Definition | An Extension |
| Control | 0..0 |
| Type | Extension |
| Extension.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. |
| Control | 1..1 |
| Type | uri |
| Must Support | true |
| Comments | 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 should be version specific. This will ideally be the URI for the Resource Profile defining the extension, with the code for the extension after a #. |
| Max Length | 0 |
| Fixed Value | http://hl7.org/fhir/StructureDefinition/extension-Communication.topic |
| Extension.valueReference | |
| Definition | Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list). |
| Control | 1..1 |
| Type | Reference |
| Must Support | true |