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Definition: A code representing the repeat pattern defined by the other components of this data type. Refer to User-defined Table 0335 – Repeat Pattern for suggested values.

Definition: Specifies an alignment of the repetition to a calendar (e.g., to distinguish every 30 days from “the 5th of every month”). Refer to HL7 Table 0527 - Calendar Alignment for valid values.

Definition: Used for Calendar aligned repeat patterns to determine the amount of time from the beginning of particular RPT.2 - Calendar Alignment to the beginning of the phase. If Calendar Alignment is DW (days of week), then this would be the offset from the beginning of the week.

If Phase Range Begin Value is populated, but Phase Range End Value is not populated, then this component defines when the period (RPT.5, 6) begins.

If both Phase Range Begin Value and Phase Range End Value are populated, then this component defines the earliest point in time at which the period (RPT.5, 6) will begin.

The units of measure for this component are derived from the Calendar Alignment value in RPT.2. See HL7 Table 0527 - Calendar Alignment for the units of measure associated with a particular calendar alignment.

Definition: Used for Calendar aligned repeat patterns to determine the amount of time from the beginning of particular RPT.2 - Calendar Alignment to the end of the phase.

If Phase Range End Value is populated, but Phase Range Begin Value is not populated, then this component defines when the timing period (RPT.5, 6) begins.

If both Phase Range Begin Value and Phase Range End Value are populated, then this component defines the latest point in time at which the period (RPT.5, 6) will begin.

The units of measure for this component are derived from the Calendar Alignment value in RPT.2. See HL7 Table 0527 - Calendar Alignment for the units of measure associated with a particular calendar alignment.

Definition: A time duration specifying the frequency at which the periodic interval repeats. RPT.6 - Period Units defines the units of time for this component.

Definition: Defines the units used for RPT.5 - Period Quantity. Constrained to units of time. Best practice is to use UCUM. Refer to External table the Unified Code for Units of Measure (UCUM) [http://aurora.rg.iupui.edu/UCUM] for valid values.

Condition Rule: This component is required if RPT.5 - Period Quantity is populated.

Definition: A code that indicates whether the exact timing is up to the party executing the schedule (e.g., to distinguish “every 8 hours” from “3 times a day”). Refer to HL7 Table 0136 - Yes/No Indicator for valid values.

• Y - exact timing up to party executing schedule.

• N - exact timing as specified.

Definition: A code for a common (periodical) activity of daily living. Refer to HL7 Table 0528 - Event-Related Period for valid values.

Definition: An interval 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. A positive numeric value indicates the amount of time after the event in RPT.8. A negative numeric value indicates the amount of time prior to the event in RPT.8. RPT.10 - Event Offset Units defines the units of time for this component.

Usage Note: This component should not be valued unless there is a value in RPT-8 (Event).

Definition: Defines the units used for RPT-9 (Event Offset Quantity). Constrained to units of time. The codes for unit of measure are specified in the Unified Code for Units of Measure (UCUM) [http://aurora.rg.iupui.edu/UCUM].

Condition Rule: This component is required if RPT.9 - Event Offset Quantity is populated.

Definition: The General Timing Specification as defined by the Version 3 Data Types document.