Name Flags Card. Type Description & Constraints RelativeTime ΣN Element Expresses a time or time period as relative to the time of an event + Rule: A RelativeTime can have either a contextReference or contextDefinition but not both + Rule: If RelativeTime has a contextPath, it SHALL have either a contextReference or a contextDefinition Elements defined in Ancestors: id, <a href="types.html#Element" title="May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.">extension, <a href="types.html#BackboneType" title="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.#xA;#xA;Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).">modifierExtension #xD; contextReference ΣC 0..1 Reference(Any) The specific event occurrence or resource context used as a base point (reference point) in time #xD; contextDefinition ΣC 0..1 canonical(ActivityDefinition | EventDefinition | PlanDefinition | ObservationDefinition) The type of event used as a base point #xD; contextPath ΣC 0..1 string Path to the element defining the basis for the relative time #xD; contextCode Σ 0..1 CodeableConcept Coded representation of the event used as a base point (reference point) in time Binding: RelativeTime Codes (Example) #xD; offset[x] Σ 0..1 An offset or offset range before (negative values) or after (positive values) the event #xD; offsetDuration Duration #xD; offsetRange Range #xD; text Σ 0..1 string Free-text description #xD; Documentation for this format
RelativeTime Type: RelativeTime expresses a time or time period as relative to the time of an event defined in data types other than dateTime.
Expresses a time or time period as relative to the time of an event
RelativeTime expresses a time or time period as relative to the time of an event defined in data types other than dateTime.
All FHIR elements must have a @value or children
hasValue() or (children().count() > id.count())
A RelativeTime can have either a contextReference or contextDefinition but not both
contextReference.empty() or contextDefinition.empty()
If RelativeTime has a contextPath, it SHALL have either a contextReference or a contextDefinition
contextPath.empty() or contextReference.exists() or contextDefinition.exists()
Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Extensions are always sliced by (at least) url
Additional content defined by implementations
May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Extensions that cannot be ignored even if unrecognized
May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).
Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
The specific event occurrence or resource context used as a base point (reference point) in time
The specific event occurrence or resource context used as a base point (reference point) in time. This establishes the context in which the 'path' is evaluated.
The type of event used as a base point. Instances of this definition will establish the context for evaluating the path to determine the base time for the offset.
Path to the element defining the basis for the relative time
Path to the element defining the basis for the relative time. Any valid FHIRPath expression.
Coded representation of the event used as a base point (reference point) in time
Coded representation of the event used as a base point (reference point) in time.
The event used as a base point (reference point) in time.
An offset or offset range before (negative values) or after (positive values) the event
An offset or offset range before (negative values) or after (positive values) the event. Range is limited to time-valued quantities (Durations).