Specifies a periodic interval of time where the recurrence is based on activities of daily living or other important events that are time-related but not fully determined by time.
EIVL_TS: EventRelatedPeriodicInterval (V3 Data Type)
A quantity specifying a point on the axis of natural time. A point in time is most often represented as a calendar expression.
If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
A code specifying whether the set component is included (union) or excluded (set-difference) from the set, or other set operations with the current set component and the set as constructed from the representation stream up to the current point.
A code for a common (periodical) activity of daily living based on which the event related periodic interval is specified.
An interval of elapsed time (duration, not absolute point in time) that marks the offsets for the beginning, width and end of the event-related periodic interval measured from the time each such event actually occurred.