This page is part of the FHIR Specification (v1.0.2: DSTU 2). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R4B R4 R3 R2
Detailed Descriptions for the elements in the extension.
Extension | |
Definition | The amount of time that the Adverse Reaction persisted. |
Control | 0..1 |
Type | Extension |
Extension.id | |
Definition | unique id for the element within a resource (for internal references). |
Control | 0..1 |
Type | id |
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 |
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 #. |
Fixed Value | http://hl7.org/fhir/StructureDefinition/allergyintolerance-duration |
Extension.valueQuantity | |
Definition | There SHALL be a code if there is a value and it SHALL be an expression of time. If system is present, it SHALL be UCUM. |
Control | 1..1 |
Type | Quantity(Duration) |
Comments | The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator. |
Invariants | Defined on this element drt-1: There SHALL be a code if there is a value and it SHALL be an expression of time. If system is present, it SHALL be UCUM. (xpath: (f:code or not(f:value)) and (not(exists(f:system)) or f:system/@value='http://unitsofmeasure.org')) qty-3: If a code for the unit is present, the system SHALL also be present (xpath: not(exists(f:code)) or exists(f:system)) |