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## Data Type Profile: TimingPianoCura - Detailed Descriptions

Active as of 2025-06-26

Definitions for the TimingPianoCura data type profile.

- Key Elements Table
- Differential Elements Table
- Snapshot Elements Table

Guidance on how to interpret the contents of this table can be found here

0. Timing
Definition | Specifies an event that may occur multiple times. Timing schedules are used to record when things are planned, expected or requested to occur. The most common usage is in dosage instructions for medications. They are also used when planning care of various kinds, and may be used for reporting the schedule to which past regular activities were carried out.
Short | A timing schedule that specifies an event that may occur multiple times
Comments | Describes the occurrence of an event that may occur multiple times. Timing schedules are used for specifying when events are expected or requested to occur, and may also be used to represent the summary of a past or ongoing event. For simplicity, the definitions of Timing components are expressed as 'future' events, but such components can also be used to describe historic or ongoing events. A Timing schedule can be a list of events and/or criteria for when the event happens, which can be expressed in a structured form and/or as a code. When both event and a repeating specification are provided, the list of events should be understood as an interpretation of the information in the repeat structure.
Control | 0..*
Is Modifier | false
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
2. Timing.modifierExtension
Definition | 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 manageable, 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).
Short | Extensions that cannot be ignored even if unrecognized
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summary | true
Requirements | 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.
Alternate Names | extensions, user content, modifiers
Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())

Guidance on how to interpret the contents of this table can be found here

0. Timing
2. Timing.repeat
4. Timing.repeat.count
Short | Numero di cicli
6. Timing.repeat.duration
Short | Durata del ciclo
8. Timing.repeat.frequency
Short | Frequenza
10. Timing.repeat.timeOfDay
Short | Orario

Guidance on how to interpret the contents of this table can be found here

0. Timing
Definition | Specifies an event that may occur multiple times. Timing schedules are used to record when things are planned, expected or requested to occur. The most common usage is in dosage instructions for medications. They are also used when planning care of various kinds, and may be used for reporting the schedule to which past regular activities were carried out.
Short | A timing schedule that specifies an event that may occur multiple times
Comments | Describes the occurrence of an event that may occur multiple times. Timing schedules are used for specifying when events are expected or requested to occur, and may also be used to represent the summary of a past or ongoing event. For simplicity, the definitions of Timing components are expressed as 'future' events, but such components can also be used to describe historic or ongoing events. A Timing schedule can be a list of events and/or criteria for when the event happens, which can be expressed in a structured form and/or as a code. When both event and a repeating specification are provided, the list of events should be understood as an interpretation of the information in the repeat structure.
Control | 0..*
Is Modifier | false
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
2. Timing.id
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short | Unique id for inter-element referencing
Control | 0..1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
4. Timing.extension
Definition | 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 manageable, 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.
Short | Additional content defined by implementations
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | false
Summary | false
Alternate Names | extensions, user content
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing | This element introduces a set of slices on `Timing.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
6. Timing.modifierExtension
Definition | 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 manageable, 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).
Short | Extensions that cannot be ignored even if unrecognized
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | true because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summary | true
Requirements | 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.
Alternate Names | extensions, user content, modifiers
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
8. Timing.event
Definition | Identifies specific times when the event occurs.
Short | When the event occurs
Control | 0..*
Type | dateTime
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | In a Medication Administration Record, for instance, you need to take a general specification, and turn it into a precise specification.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
10. Timing.repeat
Definition | A set of rules that describe when the event is scheduled.
Short | When the event is to occur
Control | 0..1
Type | Element
Is Modifier | false
Summary | true
Requirements | Many timing schedules are determined by regular repetitions.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) tim-1: if there's a duration, there needs to be duration units (`duration.empty() or durationUnit.exists()`) tim-2: if there's a period, there needs to be period units (`period.empty() or periodUnit.exists()`) tim-4: duration SHALL be a non-negative value (`duration.exists() implies duration >= 0`) tim-5: period SHALL be a non-negative value (`period.exists() implies period >= 0`) tim-6: If there's a periodMax, there must be a period (`periodMax.empty() or period.exists()`) tim-7: If there's a durationMax, there must be a duration (`durationMax.empty() or duration.exists()`) tim-8: If there's a countMax, there must be a count (`countMax.empty() or count.exists()`) tim-9: If there's an offset, there must be a when (and not C, CM, CD, CV) (`offset.empty() or (when.exists() and ((when in ('C' | 'CM' | 'CD' | 'CV')).not()))`) tim-10: If there's a timeOfDay, there cannot be a when, or vice versa (`timeOfDay.empty() or when.empty()`)
12. Timing.repeat.id
Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Short | Unique id for inter-element referencing
Control | 0..1
Type | string
Is Modifier | false
XML Format | In the XML format, this property is represented as an attribute.
Summary | false
14. Timing.repeat.extension
Definition | 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 manageable, 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.
Short | Additional content defined by implementations
Comments | 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.
Control | 0..*
Type | Extension
Is Modifier | false
Summary | false
Alternate Names | extensions, user content
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`) ext-1: Must have either extensions or value[x], not both (`extension.exists() != value.exists()`)
Slicing | This element introduces a set of slices on `Timing.repeat.extension`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ url
16. Timing.repeat.bounds[x]
Definition | Either a duration for the length of the timing schedule, a range of possible length, or outer bounds for start and/or end limits of the timing schedule.
Short | Length/Range of lengths, or (Start and/or end) limits
Control | 0..1
Type | Choice of: Duration, Range, Period
[x] Note | SeeChoice of Data Typesfor further information about how to use [x]
Is Modifier | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
18. Timing.repeat.count
Definition | A total count of the desired number of repetitions across the duration of the entire timing specification. If countMax is present, this element indicates the lower bound of the allowed range of count values.
Short | Numero di cicli
Comments | If you have both bounds and count, then this should be understood as within the bounds period, until count times happens.
Control | 0..1
Type | positiveInt
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Repetitions may be limited by end time or total occurrences.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
20. Timing.repeat.countMax
Definition | If present, indicates that the count is a range - so to perform the action between [count] and [countMax] times.
Short | Maximum number of times to repeat
Control | 0..1
Type | positiveInt
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
22. Timing.repeat.duration
Definition | How long this thing happens for when it happens. If durationMax is present, this element indicates the lower bound of the allowed range of the duration.
Short | Durata del ciclo
Comments | For some events the duration is part of the definition of the event (e.g. IV infusions, where the duration is implicit in the specified quantity and rate). For others, it's part of the timing specification (e.g. exercise).
Control | 0..1
Type | decimal
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Some activities are not instantaneous and need to be maintained for a period of time.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
24. Timing.repeat.durationMax
Definition | If present, indicates that the duration is a range - so to perform the action between [duration] and [durationMax] time length.
Short | How long when it happens (Max)
Comments | For some events the duration is part of the definition of the event (e.g. IV infusions, where the duration is implicit in the specified quantity and rate). For others, it's part of the timing specification (e.g. exercise).
Control | 0..1
Type | decimal
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Some activities are not instantaneous and need to be maintained for a period of time.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
26. Timing.repeat.durationUnit
Definition | The units of time for the duration, in UCUM units.
Short | s | min | h | d | wk | mo | a - unit of time (UCUM)
Control | 0..1
Binding | The codes SHALL be taken from UnitsOfTime (required to `http://hl7.org/fhir/ValueSet/units-of-time|4.0.1` ) A unit of time (units from UCUM).
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
28. Timing.repeat.frequency
Definition | The number of times to repeat the action within the specified period. If frequencyMax is present, this element indicates the lower bound of the allowed range of the frequency.
Short | Frequenza
Control | 0..1
Type | positiveInt
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Meaning if Missing | If no frequency is stated, the assumption is that the event occurs once per period, but systems SHOULD always be specific about this
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
30. Timing.repeat.frequencyMax
Definition | If present, indicates that the frequency is a range - so to repeat between [frequency] and [frequencyMax] times within the period or period range.
Short | Event occurs up to frequencyMax times per period
Control | 0..1
Type | positiveInt
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
32. Timing.repeat.period
Definition | Indicates the duration of time over which repetitions are to occur; e.g. to express "3 times per day", 3 would be the frequency and "1 day" would be the period. If periodMax is present, this element indicates the lower bound of the allowed range of the period length.
Short | Event occurs frequency times per period
Control | 0..1
Type | decimal
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
34. Timing.repeat.periodMax
Definition | If present, indicates that the period is a range from [period] to [periodMax], allowing expressing concepts such as "do this once every 3-5 days.
Short | Upper limit of period (3-4 hours)
Control | 0..1
Type | decimal
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
36. Timing.repeat.periodUnit
Definition | The units of time for the period in UCUM units.
Short | s | min | h | d | wk | mo | a - unit of time (UCUM)
Control | 0..1
Binding | The codes SHALL be taken from UnitsOfTime (required to `http://hl7.org/fhir/ValueSet/units-of-time|4.0.1` ) A unit of time (units from UCUM).
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
38. Timing.repeat.dayOfWeek
Definition | If one or more days of week is provided, then the action happens only on the specified day(s).
Short | mon | tue | wed | thu | fri | sat | sun
Comments | If no days are specified, the action is assumed to happen every day as otherwise specified. The elements frequency and period cannot be used as well as dayOfWeek.
Control | 0..*
Binding | The codes SHALL be taken from DaysOfWeek (required to `http://hl7.org/fhir/ValueSet/days-of-week|4.0.1` )
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
40. Timing.repeat.timeOfDay
Definition | Specified time of day for action to take place.
Short | Orario
Comments | When time of day is specified, it is inferred that the action happens every day (as filtered by dayofWeek) on the specified times. The elements when, frequency and period cannot be used as well as timeOfDay.
Control | 0..*
Type | time
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
42. Timing.repeat.when
Definition | An approximate time period during the day, potentially linked to an event of daily living that indicates when the action should occur.
Short | Code for time period of occurrence
Comments | When more than one event is listed, the event is tied to the union of the specified events.
Control | 0..*
Binding | The codes SHALL be taken from EventTiming (required to `http://hl7.org/fhir/ValueSet/event-timing|4.0.1` ) Real world event relating to the schedule.
Type | code
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Requirements | Timings are frequently determined by occurrences such as waking, eating and sleep.
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
44. Timing.repeat.offset
Definition | The number of minutes from the event. If the event code does not indicate whether the minutes is before or after the event, then the offset is assumed to be after the event.
Short | Minutes from event (before or after)
Control | 0..1
Type | unsignedInt
Is Modifier | false
Primitive Value | This primitive element may be present, or absent, or replaced by an extension
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
46. Timing.code
Definition | A code for the timing schedule (or just text in code.text). Some codes such as BID are ubiquitous, but many institutions define their own additional codes. If a code is provided, the code is understood to be a complete statement of whatever is specified in the structured timing data, and either the code or the data may be used to interpret the Timing, with the exception that .repeat.bounds still applies over the code (and is not contained in the code).
Short | BID | TID | QID | AM | PM | QD | QOD | +
Comments | BID etc. are defined as 'at institutionally specified times'. For example, an institution may choose that BID is "always at 7am and 6pm". If it is inappropriate for this choice to be made, the code BID should not be used. Instead, a distinct organization-specific code should be used in place of the HL7-defined BID code and/or a structured representation should be used (in this case, specifying the two event times).
Control | 0..1
Binding | The codes SHOULD be taken from TimingAbbreviation (preferred to `http://hl7.org/fhir/ValueSet/timing-abbreviation` ) Code for a known / defined timing pattern.
Type | CodeableConcept
Is Modifier | false
Summary | true
Invariants | ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)