dateTimePrecision

A keyword identifying a singular date/time precision unit. Used in duration calculations, component extraction, and interval operator phrases to specify the granularity of a temporal operation.

Examples

Year precision in a duration calculation

duration in years of "Measurement Period"

Month precision in a same-as comparison

Encounter.period same month as "Measurement Period"

Day precision in an offset

MedStart 30 days before start of Encounter.period

Minute precision in a within comparison

Procedure.performed within 30 minutes of Encounter.period
Railroad Diagram
100%
year month week day hour minute second millisecond

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EBNF

dateTimePrecision
  : 'year' | 'month' | 'week' | 'day'
  | 'hour' | 'minute' | 'second' | 'millisecond'
  ;

Used In