Name	Flags	Card.	Type	Description & Constraints
Dosage		0..*	CHCoreDosage	CH EMED Dosage Split (MedicationStatement / MedicationDispense / MedicationRequest)
sequence	C	1..1	integer	The order of the dosage instructions ch-dosage-2: The sequence number must be greater than 1
text		0..0
additionalInstruction		0..0
patientInstruction		0..0
timing		1..1	Timing	When medication should be administered
repeat		1..1	Element	When the event is to occur
Slices for bounds[x]		0..1	Duration, Range	Length/Range of lengths, or (Start and/or end) limits Slice: Unordered, Open by type:$this
bounds[x]:boundsPeriod		0..0
when	SC	1..*	code	Code for time period of occurrence ch-emed-event-timing: For the representation of the time of administration according to the 1-1-1-1 scheme, the values MORN-NOON-EVE-NIGHT are highly recommended.
asNeeded[x]		0..0
site		0..0
route		0..0
method		0..0
doseAndRate		1..1	Element	Amount of medication administered
dose[x]	S	1..1	CHCoreRangeWithEmedUnits, CHCoreQuantityWithEmedUnits	Amount of medication per dose
maxDosePerPeriod		0..0
maxDosePerAdministration		0..0
maxDosePerLifetime		0..0
Documentation for this format

Constraints

Id	Grade	Path(s)	Details	Requirements
ch-dosage-2	error	Dosage.sequence	The sequence number must be greater than 1 : $this > 1
ch-emed-event-timing	warning	Dosage.timing.repeat.when	For the representation of the time of administration according to the 1-1-1-1 scheme, the values MORN-NOON-EVE-NIGHT are highly recommended. : $this='MORN' or $this='NOON' or $this='EVE' or $this='NIGHT'

Name	Flags	Card.	Type	Description & Constraints
Dosage		0..*	CHCoreDosage	CH EMED Dosage Split (MedicationStatement / MedicationDispense / MedicationRequest) ele-1: All FHIR elements must have a @value or children
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both
sequence	ΣC	1..1	integer	The order of the dosage instructions ele-1: All FHIR elements must have a @value or children ch-dosage-2: The sequence number must be greater than 1
timing	Σ	1..1	Timing	When medication should be administered ele-1: All FHIR elements must have a @value or children
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both
repeat	ΣC	1..1	Element	When the event is to occur ele-1: All FHIR elements must have a @value or children tim-1: if there's a duration, there needs to be duration units tim-2: if there's a period, there needs to be period units tim-4: duration SHALL be a non-negative value tim-5: period SHALL be a non-negative value tim-6: If there's a periodMax, there must be a period tim-7: If there's a durationMax, there must be a duration tim-8: If there's a countMax, there must be a count tim-9: If there's an offset, there must be a when (and not C, CM, CD, CV) tim-10: If there's a timeOfDay, there cannot be a when, or vice versa
Slices for bounds[x]	Σ	0..1		Length/Range of lengths, or (Start and/or end) limits Slice: Unordered, Open by type:$this ele-1: All FHIR elements must have a @value or children
boundsDuration			Duration
boundsRange			Range
when	SΣC	1..*	code	Code for time period of occurrence Binding: EventTiming (required): Real world event relating to the schedule. ele-1: All FHIR elements must have a @value or children ch-emed-event-timing: For the representation of the time of administration according to the 1-1-1-1 scheme, the values MORN-NOON-EVE-NIGHT are highly recommended.
doseAndRate	Σ	1..1	Element	Amount of medication administered ele-1: All FHIR elements must have a @value or children
dose[x]	SΣ	1..1		Amount of medication per dose ele-1: All FHIR elements must have a @value or children
doseRange			Range(CHCoreRangeWithEmedUnits)
doseQuantity			Quantity(CHCoreQuantityWithEmedUnits)
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Dosage.timing.repeat.when	required	EventTiming http://hl7.org/fhir/ValueSet/event-timing|4.0.1 from the FHIR Standard

Constraints

Id	Grade	Path(s)	Details	Requirements
ch-dosage-2	error	Dosage.sequence	The sequence number must be greater than 1 : $this > 1
ch-emed-event-timing	warning	Dosage.timing.repeat.when	For the representation of the time of administration according to the 1-1-1-1 scheme, the values MORN-NOON-EVE-NIGHT are highly recommended. : $this='MORN' or $this='NOON' or $this='EVE' or $this='NIGHT'
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()
tim-1	error	Dosage.timing.repeat	if there's a duration, there needs to be duration units : duration.empty() or durationUnit.exists()
tim-2	error	Dosage.timing.repeat	if there's a period, there needs to be period units : period.empty() or periodUnit.exists()
tim-4	error	Dosage.timing.repeat	duration SHALL be a non-negative value : duration.exists() implies duration >= 0
tim-5	error	Dosage.timing.repeat	period SHALL be a non-negative value : period.exists() implies period >= 0
tim-6	error	Dosage.timing.repeat	If there's a periodMax, there must be a period : periodMax.empty() or period.exists()
tim-7	error	Dosage.timing.repeat	If there's a durationMax, there must be a duration : durationMax.empty() or duration.exists()
tim-8	error	Dosage.timing.repeat	If there's a countMax, there must be a count : countMax.empty() or count.exists()
tim-9	error	Dosage.timing.repeat	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	error	Dosage.timing.repeat	If there's a timeOfDay, there cannot be a when, or vice versa : timeOfDay.empty() or when.empty()

Name	Flags	Card.	Type	Description & Constraints
Dosage		0..*	CHCoreDosage	CH EMED Dosage Split (MedicationStatement / MedicationDispense / MedicationRequest)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
sequence	ΣC	1..1	integer	The order of the dosage instructions ch-dosage-2: The sequence number must be greater than 1
timing	Σ	1..1	Timing	When medication should be administered
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
event	Σ	0..*	dateTime	When the event occurs
repeat	ΣC	1..1	Element	When the event is to occur tim-1: if there's a duration, there needs to be duration units tim-2: if there's a period, there needs to be period units tim-4: duration SHALL be a non-negative value tim-5: period SHALL be a non-negative value tim-6: If there's a periodMax, there must be a period tim-7: If there's a durationMax, there must be a duration tim-8: If there's a countMax, there must be a count tim-9: If there's an offset, there must be a when (and not C, CM, CD, CV) tim-10: If there's a timeOfDay, there cannot be a when, or vice versa
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
Slices for bounds[x]	Σ	0..1		Length/Range of lengths, or (Start and/or end) limits Slice: Unordered, Open by type:$this
boundsDuration			Duration
boundsRange			Range
count	Σ	0..1	positiveInt	Number of times to repeat
countMax	Σ	0..1	positiveInt	Maximum number of times to repeat
duration	Σ	0..1	decimal	How long when it happens
durationMax	Σ	0..1	decimal	How long when it happens (Max)
durationUnit	Σ	0..1	code	s | min | h | d | wk | mo | a - unit of time (UCUM) Binding: UnitsOfTime (required): A unit of time (units from UCUM).
frequency	Σ	0..1	positiveInt	Event occurs frequency times per period
frequencyMax	Σ	0..1	positiveInt	Event occurs up to frequencyMax times per period
period	Σ	0..1	decimal	Event occurs frequency times per period
periodMax	Σ	0..1	decimal	Upper limit of period (3-4 hours)
periodUnit	Σ	0..1	code	s | min | h | d | wk | mo | a - unit of time (UCUM) Binding: UnitsOfTime (required): A unit of time (units from UCUM).
dayOfWeek	Σ	0..*	code	mon | tue | wed | thu | fri | sat | sun Binding: DaysOfWeek (required)
timeOfDay	Σ	0..*	time	Time of day for action
when	SΣC	1..*	code	Code for time period of occurrence Binding: EventTiming (required): Real world event relating to the schedule. ch-emed-event-timing: For the representation of the time of administration according to the 1-1-1-1 scheme, the values MORN-NOON-EVE-NIGHT are highly recommended.
offset	Σ	0..1	unsignedInt	Minutes from event (before or after)
code	Σ	0..1	CodeableConcept	BID | TID | QID | AM | PM | QD | QOD | + Binding: TimingAbbreviation (preferred): Code for a known / defined timing pattern.
doseAndRate	Σ	1..1	Element	Amount of medication administered
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
type	Σ	0..1	CodeableConcept	The kind of dose or rate specified Binding: DoseAndRateType (example): The kind of dose or rate specified.
dose[x]	SΣ	1..1		Amount of medication per dose
doseRange			Range(CHCoreRangeWithEmedUnits)
doseQuantity			Quantity(CHCoreQuantityWithEmedUnits)
rate[x]	Σ	0..1		Amount of medication per unit of time
rateRatio			Ratio
rateRange			Range
rateQuantity			Quantity(SimpleQuantity)
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Dosage.timing.repeat.durationUnit	required	UnitsOfTime http://hl7.org/fhir/ValueSet/units-of-time|4.0.1 from the FHIR Standard
Dosage.timing.repeat.periodUnit	required	UnitsOfTime http://hl7.org/fhir/ValueSet/units-of-time|4.0.1 from the FHIR Standard
Dosage.timing.repeat.dayOfWeek	required	DaysOfWeek http://hl7.org/fhir/ValueSet/days-of-week|4.0.1 from the FHIR Standard
Dosage.timing.repeat.when	required	EventTiming http://hl7.org/fhir/ValueSet/event-timing|4.0.1 from the FHIR Standard
Dosage.timing.code	preferred	TimingAbbreviation http://hl7.org/fhir/ValueSet/timing-abbreviation from the FHIR Standard
Dosage.doseAndRate.type	example	DoseAndRateType http://hl7.org/fhir/ValueSet/dose-rate-type from the FHIR Standard

Constraints

Id	Grade	Path(s)	Details	Requirements
ch-dosage-2	error	Dosage.sequence	The sequence number must be greater than 1 : $this > 1
ch-emed-event-timing	warning	Dosage.timing.repeat.when	For the representation of the time of administration according to the 1-1-1-1 scheme, the values MORN-NOON-EVE-NIGHT are highly recommended. : $this='MORN' or $this='NOON' or $this='EVE' or $this='NIGHT'
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()
tim-1	error	Dosage.timing.repeat	if there's a duration, there needs to be duration units : duration.empty() or durationUnit.exists()
tim-2	error	Dosage.timing.repeat	if there's a period, there needs to be period units : period.empty() or periodUnit.exists()
tim-4	error	Dosage.timing.repeat	duration SHALL be a non-negative value : duration.exists() implies duration >= 0
tim-5	error	Dosage.timing.repeat	period SHALL be a non-negative value : period.exists() implies period >= 0
tim-6	error	Dosage.timing.repeat	If there's a periodMax, there must be a period : periodMax.empty() or period.exists()
tim-7	error	Dosage.timing.repeat	If there's a durationMax, there must be a duration : durationMax.empty() or duration.exists()
tim-8	error	Dosage.timing.repeat	If there's a countMax, there must be a count : countMax.empty() or count.exists()
tim-9	error	Dosage.timing.repeat	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	error	Dosage.timing.repeat	If there's a timeOfDay, there cannot be a when, or vice versa : timeOfDay.empty() or when.empty()

Summary

Mandatory: 6 elements
Must-Support: 2 elements
Prohibited: 11 elements

Slices

This structure defines the following Slices:

• The element 1 is sliced based on the value of Dosage.timing.repeat.bounds[x]

Name	Flags	Card.	Type	Description & Constraints
Dosage		0..*	CHCoreDosage	CH EMED Dosage Split (MedicationStatement / MedicationDispense / MedicationRequest)
sequence	C	1..1	integer	The order of the dosage instructions ch-dosage-2: The sequence number must be greater than 1
text		0..0
additionalInstruction		0..0
patientInstruction		0..0
timing		1..1	Timing	When medication should be administered
repeat		1..1	Element	When the event is to occur
Slices for bounds[x]		0..1	Duration, Range	Length/Range of lengths, or (Start and/or end) limits Slice: Unordered, Open by type:$this
bounds[x]:boundsPeriod		0..0
when	SC	1..*	code	Code for time period of occurrence ch-emed-event-timing: For the representation of the time of administration according to the 1-1-1-1 scheme, the values MORN-NOON-EVE-NIGHT are highly recommended.
asNeeded[x]		0..0
site		0..0
route		0..0
method		0..0
doseAndRate		1..1	Element	Amount of medication administered
dose[x]	S	1..1	CHCoreRangeWithEmedUnits, CHCoreQuantityWithEmedUnits	Amount of medication per dose
maxDosePerPeriod		0..0
maxDosePerAdministration		0..0
maxDosePerLifetime		0..0
Documentation for this format

Constraints

Id	Grade	Path(s)	Details	Requirements
ch-dosage-2	error	Dosage.sequence	The sequence number must be greater than 1 : $this > 1
ch-emed-event-timing	warning	Dosage.timing.repeat.when	For the representation of the time of administration according to the 1-1-1-1 scheme, the values MORN-NOON-EVE-NIGHT are highly recommended. : $this='MORN' or $this='NOON' or $this='EVE' or $this='NIGHT'

Name	Flags	Card.	Type	Description & Constraints
Dosage		0..*	CHCoreDosage	CH EMED Dosage Split (MedicationStatement / MedicationDispense / MedicationRequest) ele-1: All FHIR elements must have a @value or children
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both
sequence	ΣC	1..1	integer	The order of the dosage instructions ele-1: All FHIR elements must have a @value or children ch-dosage-2: The sequence number must be greater than 1
timing	Σ	1..1	Timing	When medication should be administered ele-1: All FHIR elements must have a @value or children
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both
repeat	ΣC	1..1	Element	When the event is to occur ele-1: All FHIR elements must have a @value or children tim-1: if there's a duration, there needs to be duration units tim-2: if there's a period, there needs to be period units tim-4: duration SHALL be a non-negative value tim-5: period SHALL be a non-negative value tim-6: If there's a periodMax, there must be a period tim-7: If there's a durationMax, there must be a duration tim-8: If there's a countMax, there must be a count tim-9: If there's an offset, there must be a when (and not C, CM, CD, CV) tim-10: If there's a timeOfDay, there cannot be a when, or vice versa
Slices for bounds[x]	Σ	0..1		Length/Range of lengths, or (Start and/or end) limits Slice: Unordered, Open by type:$this ele-1: All FHIR elements must have a @value or children
boundsDuration			Duration
boundsRange			Range
when	SΣC	1..*	code	Code for time period of occurrence Binding: EventTiming (required): Real world event relating to the schedule. ele-1: All FHIR elements must have a @value or children ch-emed-event-timing: For the representation of the time of administration according to the 1-1-1-1 scheme, the values MORN-NOON-EVE-NIGHT are highly recommended.
doseAndRate	Σ	1..1	Element	Amount of medication administered ele-1: All FHIR elements must have a @value or children
dose[x]	SΣ	1..1		Amount of medication per dose ele-1: All FHIR elements must have a @value or children
doseRange			Range(CHCoreRangeWithEmedUnits)
doseQuantity			Quantity(CHCoreQuantityWithEmedUnits)
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Dosage.timing.repeat.when	required	EventTiming http://hl7.org/fhir/ValueSet/event-timing|4.0.1 from the FHIR Standard

Constraints

Id	Grade	Path(s)	Details	Requirements
ch-dosage-2	error	Dosage.sequence	The sequence number must be greater than 1 : $this > 1
ch-emed-event-timing	warning	Dosage.timing.repeat.when	For the representation of the time of administration according to the 1-1-1-1 scheme, the values MORN-NOON-EVE-NIGHT are highly recommended. : $this='MORN' or $this='NOON' or $this='EVE' or $this='NIGHT'
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()
tim-1	error	Dosage.timing.repeat	if there's a duration, there needs to be duration units : duration.empty() or durationUnit.exists()
tim-2	error	Dosage.timing.repeat	if there's a period, there needs to be period units : period.empty() or periodUnit.exists()
tim-4	error	Dosage.timing.repeat	duration SHALL be a non-negative value : duration.exists() implies duration >= 0
tim-5	error	Dosage.timing.repeat	period SHALL be a non-negative value : period.exists() implies period >= 0
tim-6	error	Dosage.timing.repeat	If there's a periodMax, there must be a period : periodMax.empty() or period.exists()
tim-7	error	Dosage.timing.repeat	If there's a durationMax, there must be a duration : durationMax.empty() or duration.exists()
tim-8	error	Dosage.timing.repeat	If there's a countMax, there must be a count : countMax.empty() or count.exists()
tim-9	error	Dosage.timing.repeat	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	error	Dosage.timing.repeat	If there's a timeOfDay, there cannot be a when, or vice versa : timeOfDay.empty() or when.empty()

Name	Flags	Card.	Type	Description & Constraints
Dosage		0..*	CHCoreDosage	CH EMED Dosage Split (MedicationStatement / MedicationDispense / MedicationRequest)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
sequence	ΣC	1..1	integer	The order of the dosage instructions ch-dosage-2: The sequence number must be greater than 1
timing	Σ	1..1	Timing	When medication should be administered
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
event	Σ	0..*	dateTime	When the event occurs
repeat	ΣC	1..1	Element	When the event is to occur tim-1: if there's a duration, there needs to be duration units tim-2: if there's a period, there needs to be period units tim-4: duration SHALL be a non-negative value tim-5: period SHALL be a non-negative value tim-6: If there's a periodMax, there must be a period tim-7: If there's a durationMax, there must be a duration tim-8: If there's a countMax, there must be a count tim-9: If there's an offset, there must be a when (and not C, CM, CD, CV) tim-10: If there's a timeOfDay, there cannot be a when, or vice versa
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
Slices for bounds[x]	Σ	0..1		Length/Range of lengths, or (Start and/or end) limits Slice: Unordered, Open by type:$this
boundsDuration			Duration
boundsRange			Range
count	Σ	0..1	positiveInt	Number of times to repeat
countMax	Σ	0..1	positiveInt	Maximum number of times to repeat
duration	Σ	0..1	decimal	How long when it happens
durationMax	Σ	0..1	decimal	How long when it happens (Max)
durationUnit	Σ	0..1	code	s | min | h | d | wk | mo | a - unit of time (UCUM) Binding: UnitsOfTime (required): A unit of time (units from UCUM).
frequency	Σ	0..1	positiveInt	Event occurs frequency times per period
frequencyMax	Σ	0..1	positiveInt	Event occurs up to frequencyMax times per period
period	Σ	0..1	decimal	Event occurs frequency times per period
periodMax	Σ	0..1	decimal	Upper limit of period (3-4 hours)
periodUnit	Σ	0..1	code	s | min | h | d | wk | mo | a - unit of time (UCUM) Binding: UnitsOfTime (required): A unit of time (units from UCUM).
dayOfWeek	Σ	0..*	code	mon | tue | wed | thu | fri | sat | sun Binding: DaysOfWeek (required)
timeOfDay	Σ	0..*	time	Time of day for action
when	SΣC	1..*	code	Code for time period of occurrence Binding: EventTiming (required): Real world event relating to the schedule. ch-emed-event-timing: For the representation of the time of administration according to the 1-1-1-1 scheme, the values MORN-NOON-EVE-NIGHT are highly recommended.
offset	Σ	0..1	unsignedInt	Minutes from event (before or after)
code	Σ	0..1	CodeableConcept	BID | TID | QID | AM | PM | QD | QOD | + Binding: TimingAbbreviation (preferred): Code for a known / defined timing pattern.
doseAndRate	Σ	1..1	Element	Amount of medication administered
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
type	Σ	0..1	CodeableConcept	The kind of dose or rate specified Binding: DoseAndRateType (example): The kind of dose or rate specified.
dose[x]	SΣ	1..1		Amount of medication per dose
doseRange			Range(CHCoreRangeWithEmedUnits)
doseQuantity			Quantity(CHCoreQuantityWithEmedUnits)
rate[x]	Σ	0..1		Amount of medication per unit of time
rateRatio			Ratio
rateRange			Range
rateQuantity			Quantity(SimpleQuantity)
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
Dosage.timing.repeat.durationUnit	required	UnitsOfTime http://hl7.org/fhir/ValueSet/units-of-time|4.0.1 from the FHIR Standard
Dosage.timing.repeat.periodUnit	required	UnitsOfTime http://hl7.org/fhir/ValueSet/units-of-time|4.0.1 from the FHIR Standard
Dosage.timing.repeat.dayOfWeek	required	DaysOfWeek http://hl7.org/fhir/ValueSet/days-of-week|4.0.1 from the FHIR Standard
Dosage.timing.repeat.when	required	EventTiming http://hl7.org/fhir/ValueSet/event-timing|4.0.1 from the FHIR Standard
Dosage.timing.code	preferred	TimingAbbreviation http://hl7.org/fhir/ValueSet/timing-abbreviation from the FHIR Standard
Dosage.doseAndRate.type	example	DoseAndRateType http://hl7.org/fhir/ValueSet/dose-rate-type from the FHIR Standard

Constraints

Id	Grade	Path(s)	Details	Requirements
ch-dosage-2	error	Dosage.sequence	The sequence number must be greater than 1 : $this > 1
ch-emed-event-timing	warning	Dosage.timing.repeat.when	For the representation of the time of administration according to the 1-1-1-1 scheme, the values MORN-NOON-EVE-NIGHT are highly recommended. : $this='MORN' or $this='NOON' or $this='EVE' or $this='NIGHT'
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both : extension.exists() != value.exists()
tim-1	error	Dosage.timing.repeat	if there's a duration, there needs to be duration units : duration.empty() or durationUnit.exists()
tim-2	error	Dosage.timing.repeat	if there's a period, there needs to be period units : period.empty() or periodUnit.exists()
tim-4	error	Dosage.timing.repeat	duration SHALL be a non-negative value : duration.exists() implies duration >= 0
tim-5	error	Dosage.timing.repeat	period SHALL be a non-negative value : period.exists() implies period >= 0
tim-6	error	Dosage.timing.repeat	If there's a periodMax, there must be a period : periodMax.empty() or period.exists()
tim-7	error	Dosage.timing.repeat	If there's a durationMax, there must be a duration : durationMax.empty() or duration.exists()
tim-8	error	Dosage.timing.repeat	If there's a countMax, there must be a count : countMax.empty() or count.exists()
tim-9	error	Dosage.timing.repeat	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	error	Dosage.timing.repeat	If there's a timeOfDay, there cannot be a when, or vice versa : timeOfDay.empty() or when.empty()

Summary

Mandatory: 6 elements
Must-Support: 2 elements
Prohibited: 11 elements

Slices

This structure defines the following Slices:

• The element 1 is sliced based on the value of Dosage.timing.repeat.bounds[x]