Name Flags Card. Type Description & Constraints doco
. . Timing Σ Element A timing schedule that specifies an event that may occur multiple times
. . . event Σ 0..* dateTime When the event occurs
. . . repeat Σ I 0..1 Element When the event is to occur
Either frequency or when can exist, not both
if there's a duration, there needs to be duration units
if there's a period, there needs to be period units
If there's a periodMax, there must be a period
If there's a durationMax, there must be a duration
. . . . bounds[x] Σ 0..1 Length/Range of lengths, or (Start and/or end) limits
. . . . . boundsQuantity Duration
. . . . . boundsRange Range
. . . . . boundsPeriod Period
. . . . count Σ 0..1 integer Number of times to repeat
. . . . duration Σ I 0..1 decimal How long when it happens
duration SHALL be a non-negative value
. . . . durationMax Σ 0..1 decimal How long when it happens (Max)
. . . . durationUnits Σ 0..1 code s | min | h | d | wk | mo | a - unit of time (UCUM)
UnitsOfTime ( Required)
. . . . frequency Σ 0..1 integer Event occurs frequency times per period
. . . . frequencyMax Σ 0..1 integer Event occurs up to frequencyMax times per period
. . . . period Σ I 0..1 decimal Event occurs frequency times per period
period SHALL be a non-negative value
. . . . periodMax Σ 0..1 decimal Upper limit of period (3-4 hours)
. . . . periodUnits Σ 0..1 code s | min | h | d | wk | mo | a - unit of time (UCUM)
UnitsOfTime ( Required)
. . . . when Σ 0..1 code Regular life events the event is tied to
EventTiming ( Required)
. . . code Σ 0..1 CodeableConcept QD | QOD | Q4H | Q6H | BID | TID | QID | AM | PM +
TimingAbbreviation ( Preferred)

doco Documentation for this format