This page is part of the CH EMED (R4) (v4.0.1: STU 4) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

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Data Type Profile: CH EMED Dosage (MedicationRequest)

Definition of the dosage (used in MedicationRequest)

Usage:

• Use this DataType Constraint: CH EMED MedicationRequest (PRE)

Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

• Differential Table
• Key Elements Table
• Snapshot Table
• Statistics/References
• All

This structure is derived from CHEMEDDosage

Name	Flags	Card.	Type	Description & Constraints
Dosage	C	0..*	CHEMEDDosage	CH EMED Dosage (MedicationRequest) ch-dosage-3: Patient instruction/free text dosage instruction, timing or as needed has to be specified
doseAndRate		1..1	Element	Amount of medication administered
Documentation for this format

Constraints

Id	Grade	Path(s)	Details	Requirements
ch-dosage-3	error	Dosage	Patient instruction/free text dosage instruction, timing or as needed has to be specified : patientInstruction.exists() or timing.exists() or asNeeded.exists()

Name	Flags	Card.	Type	Description & Constraints
Dosage	C	0..*	CHEMEDDosage	CH EMED Dosage (MedicationRequest) ch-dosage-3: Patient instruction/free text dosage instruction, timing or as needed has to be specified
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
patientInstruction	SΣ	0..1	string	Patient instructions (e.g. 'take with food'), incl. free text dosage instructions (e.g. for complex dosage)
timing	Σ	0..1	Timing	When medication should be administered
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
repeat	ΣC	0..1	Element	When the event is to occur
Slices for bounds[x]	Σ	0..1		Length/Range of lengths, or (Start and/or end) limits Slice: Unordered, Open by type:$this
boundsDuration			Duration
boundsRange			Range
boundsPeriod			Period
bounds[x]:boundsPeriod	SΣ	0..1	Period	Start and/or end of treatment
when	SΣC	0..*	code	Code for time period of occurrence Binding: EventTiming (required): Real world event relating to the schedule.
Slices for asNeeded[x]	Σ	0..1		Take "as needed" (for x) Slice: Unordered, Open by type:$this Binding: SNOMEDCTMedicationAsNeededReasonCodes (example): A coded concept identifying the precondition that should be met or evaluated prior to consuming or administering a medication dose. For example "pain", "30 minutes prior to sexual intercourse", "on flare-up" etc.
asNeededBoolean			boolean
asNeededCodeableConcept			CodeableConcept
asNeeded[x]:asNeededBoolean	Σ	0..1	boolean	In reserve (to be taken by the patient only if the need arises - e.g. pains)
route	Σ	0..1	CodeableConcept	Route of administration Binding: EDQM - RouteOfAdministration (required)
coding	SΣ	1..*	Coding	Code defined by a terminology system
system	Σ	1..1	uri	Identity of the terminology system
code	Σ	1..1	code	Symbol in syntax defined by the system
doseAndRate	Σ	1..1	Element	Amount of medication administered
dose[x]	SΣ	0..1		Amount of medication per dose
doseRange			Range(CHEMEDRangeWithEmedUnits)
doseQuantity			Quantity(CHEMEDQuantityWithEmedUnits)
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Dosage.timing.repeat.when	required	EventTiming
Dosage.asNeeded[x]	example	SNOMEDCTMedicationAsNeededReasonCodes
Dosage.route	required	RouteOfAdministrationEDQM

Constraints

Id	Grade	Path(s)	Details	Requirements
ch-dosage-3	error	Dosage	Patient instruction/free text dosage instruction, timing or as needed has to be specified : patientInstruction.exists() or timing.exists() or asNeeded.exists()
ch-dosage-4	error	Dosage	For split dosage timing event and dose/rate are required : sequence.exists() implies (timing.repeat.when.exists() and doseAndRate.dose.exists())
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	C	0..*	CHEMEDDosage	CH EMED Dosage (MedicationRequest) ch-dosage-3: Patient instruction/free text dosage instruction, timing or as needed has to be specified
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	0..1	integer	The order of the dosage instructions
text	Σ	0..1	string	Free text dosage instructions e.g. SIG
additionalInstruction	Σ	0..*	CodeableConcept	Supplemental instruction or warnings to the patient - e.g. "with meals", "may cause drowsiness" Binding: SNOMEDCTAdditionalDosageInstructions (example): A coded concept identifying additional instructions such as "take with water" or "avoid operating heavy machinery".
patientInstruction	SΣ	0..1	string	Patient instructions (e.g. 'take with food'), incl. free text dosage instructions (e.g. for complex dosage)
timing	Σ	0..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	0..1	Element	When the event is to occur
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:$this
boundsDuration			Duration
boundsRange			Range
boundsPeriod			Period
bounds[x]:boundsPeriod	SΣ	0..1	Period	Start and/or end of treatment
count	Σ	0..1	positiveInt	Number of times to repeat
countMax	Σ	0..1	positiveInt	Maximum number of times to repeat
duration	Σ	0..1	decimal	How long when it happens
durationMax	Σ	0..1	decimal	How long when it happens (Max)
durationUnit	Σ	0..1	code	s | min | h | d | wk | mo | a - unit of time (UCUM) Binding: UnitsOfTime (required): A unit of time (units from UCUM).
frequency	Σ	0..1	positiveInt	Event occurs frequency times per period
frequencyMax	Σ	0..1	positiveInt	Event occurs up to frequencyMax times per period
period	Σ	0..1	decimal	Event occurs frequency times per period
periodMax	Σ	0..1	decimal	Upper limit of period (3-4 hours)
periodUnit	Σ	0..1	code	s | min | h | d | wk | mo | a - unit of time (UCUM) Binding: UnitsOfTime (required): A unit of time (units from UCUM).
dayOfWeek	Σ	0..*	code	mon | tue | wed | thu | fri | sat | sun Binding: DaysOfWeek (required)
timeOfDay	Σ	0..*	time	Time of day for action
when	SΣC	0..*	code	Code for time period of occurrence Binding: EventTiming (required): Real world event relating to the schedule.
offset	Σ	0..1	unsignedInt	Minutes from event (before or after)
code	Σ	0..1	CodeableConcept	BID | TID | QID | AM | PM | QD | QOD | + Binding: TimingAbbreviation (preferred): Code for a known / defined timing pattern.
Slices for asNeeded[x]	Σ	0..1		Take "as needed" (for x) Slice: Unordered, Open by type:$this Binding: SNOMEDCTMedicationAsNeededReasonCodes (example): A coded concept identifying the precondition that should be met or evaluated prior to consuming or administering a medication dose. For example "pain", "30 minutes prior to sexual intercourse", "on flare-up" etc.
asNeededBoolean			boolean
asNeededCodeableConcept			CodeableConcept
asNeeded[x]:asNeededBoolean	Σ	0..1	boolean	In reserve (to be taken by the patient only if the need arises - e.g. pains)
site	Σ	0..1	CodeableConcept	Body site to administer to Binding: SNOMEDCTAnatomicalStructureForAdministrationSiteCodes (example): A coded concept describing the site location the medicine enters into or onto the body.
route	Σ	0..1	CodeableConcept	Route of administration Binding: EDQM - RouteOfAdministration (required)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
coding	SΣ	1..*	Coding	Code defined by a terminology system
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	1..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
text	Σ	0..1	string	Plain text representation of the concept
method	Σ	0..1	CodeableConcept	Technique for administering medication Binding: SNOMEDCTAdministrationMethodCodes (example): A coded concept describing the technique by which the medicine is administered.
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	0..1		Amount of medication per dose
doseRange			Range(CHEMEDRangeWithEmedUnits)
doseQuantity			Quantity(CHEMEDQuantityWithEmedUnits)
rate[x]	Σ	0..1		Amount of medication per unit of time
rateRatio			Ratio
rateRange			Range
rateQuantity			Quantity(SimpleQuantity)
maxDosePerPeriod	Σ	0..1	Ratio	Upper limit on medication per unit of time
maxDosePerAdministration	Σ	0..1	SimpleQuantity	Upper limit on medication per administration
maxDosePerLifetime	Σ	0..1	SimpleQuantity	Upper limit on medication per lifetime of the patient
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Dosage.additionalInstruction	example	SNOMEDCTAdditionalDosageInstructions
Dosage.timing.repeat.durationUnit	required	UnitsOfTime
Dosage.timing.repeat.periodUnit	required	UnitsOfTime
Dosage.timing.repeat.dayOfWeek	required	DaysOfWeek
Dosage.timing.repeat.when	required	EventTiming
Dosage.timing.code	preferred	TimingAbbreviation
Dosage.asNeeded[x]	example	SNOMEDCTMedicationAsNeededReasonCodes
Dosage.site	example	SNOMEDCTAnatomicalStructureForAdministrationSiteCodes
Dosage.route	required	RouteOfAdministrationEDQM
Dosage.method	example	SNOMEDCTAdministrationMethodCodes
Dosage.doseAndRate.type	example	DoseAndRateType

Constraints

Id	Grade	Path(s)	Details	Requirements
ch-dosage-1	error	Dosage.sequence	No sequence number (for one dosage element) or sequence number = 1 (for more than one dosage element) : $this.count() = 0 or $this = 1
ch-dosage-3	error	Dosage	Patient instruction/free text dosage instruction, timing or as needed has to be specified : patientInstruction.exists() or timing.exists() or asNeeded.exists()
ch-dosage-4	error	Dosage	For split dosage timing event and dose/rate are required : sequence.exists() implies (timing.repeat.when.exists() and doseAndRate.dose.exists())
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()

This structure is derived from CHEMEDDosage

Summary

Mandatory: 1 element

Differential View

This structure is derived from CHEMEDDosage

Name	Flags	Card.	Type	Description & Constraints
Dosage	C	0..*	CHEMEDDosage	CH EMED Dosage (MedicationRequest) ch-dosage-3: Patient instruction/free text dosage instruction, timing or as needed has to be specified
doseAndRate		1..1	Element	Amount of medication administered
Documentation for this format

Constraints

Id	Grade	Path(s)	Details	Requirements
ch-dosage-3	error	Dosage	Patient instruction/free text dosage instruction, timing or as needed has to be specified : patientInstruction.exists() or timing.exists() or asNeeded.exists()

Key Elements View

Name	Flags	Card.	Type	Description & Constraints
Dosage	C	0..*	CHEMEDDosage	CH EMED Dosage (MedicationRequest) ch-dosage-3: Patient instruction/free text dosage instruction, timing or as needed has to be specified
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
patientInstruction	SΣ	0..1	string	Patient instructions (e.g. 'take with food'), incl. free text dosage instructions (e.g. for complex dosage)
timing	Σ	0..1	Timing	When medication should be administered
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
repeat	ΣC	0..1	Element	When the event is to occur
Slices for bounds[x]	Σ	0..1		Length/Range of lengths, or (Start and/or end) limits Slice: Unordered, Open by type:$this
boundsDuration			Duration
boundsRange			Range
boundsPeriod			Period
bounds[x]:boundsPeriod	SΣ	0..1	Period	Start and/or end of treatment
when	SΣC	0..*	code	Code for time period of occurrence Binding: EventTiming (required): Real world event relating to the schedule.
Slices for asNeeded[x]	Σ	0..1		Take "as needed" (for x) Slice: Unordered, Open by type:$this Binding: SNOMEDCTMedicationAsNeededReasonCodes (example): A coded concept identifying the precondition that should be met or evaluated prior to consuming or administering a medication dose. For example "pain", "30 minutes prior to sexual intercourse", "on flare-up" etc.
asNeededBoolean			boolean
asNeededCodeableConcept			CodeableConcept
asNeeded[x]:asNeededBoolean	Σ	0..1	boolean	In reserve (to be taken by the patient only if the need arises - e.g. pains)
route	Σ	0..1	CodeableConcept	Route of administration Binding: EDQM - RouteOfAdministration (required)
coding	SΣ	1..*	Coding	Code defined by a terminology system
system	Σ	1..1	uri	Identity of the terminology system
code	Σ	1..1	code	Symbol in syntax defined by the system
doseAndRate	Σ	1..1	Element	Amount of medication administered
dose[x]	SΣ	0..1		Amount of medication per dose
doseRange			Range(CHEMEDRangeWithEmedUnits)
doseQuantity			Quantity(CHEMEDQuantityWithEmedUnits)
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Dosage.timing.repeat.when	required	EventTiming
Dosage.asNeeded[x]	example	SNOMEDCTMedicationAsNeededReasonCodes
Dosage.route	required	RouteOfAdministrationEDQM

Constraints

Id	Grade	Path(s)	Details	Requirements
ch-dosage-3	error	Dosage	Patient instruction/free text dosage instruction, timing or as needed has to be specified : patientInstruction.exists() or timing.exists() or asNeeded.exists()
ch-dosage-4	error	Dosage	For split dosage timing event and dose/rate are required : sequence.exists() implies (timing.repeat.when.exists() and doseAndRate.dose.exists())
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()

Snapshot View

Name	Flags	Card.	Type	Description & Constraints
Dosage	C	0..*	CHEMEDDosage	CH EMED Dosage (MedicationRequest) ch-dosage-3: Patient instruction/free text dosage instruction, timing or as needed has to be specified
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	0..1	integer	The order of the dosage instructions
text	Σ	0..1	string	Free text dosage instructions e.g. SIG
additionalInstruction	Σ	0..*	CodeableConcept	Supplemental instruction or warnings to the patient - e.g. "with meals", "may cause drowsiness" Binding: SNOMEDCTAdditionalDosageInstructions (example): A coded concept identifying additional instructions such as "take with water" or "avoid operating heavy machinery".
patientInstruction	SΣ	0..1	string	Patient instructions (e.g. 'take with food'), incl. free text dosage instructions (e.g. for complex dosage)
timing	Σ	0..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	0..1	Element	When the event is to occur
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:$this
boundsDuration			Duration
boundsRange			Range
boundsPeriod			Period
bounds[x]:boundsPeriod	SΣ	0..1	Period	Start and/or end of treatment
count	Σ	0..1	positiveInt	Number of times to repeat
countMax	Σ	0..1	positiveInt	Maximum number of times to repeat
duration	Σ	0..1	decimal	How long when it happens
durationMax	Σ	0..1	decimal	How long when it happens (Max)
durationUnit	Σ	0..1	code	s | min | h | d | wk | mo | a - unit of time (UCUM) Binding: UnitsOfTime (required): A unit of time (units from UCUM).
frequency	Σ	0..1	positiveInt	Event occurs frequency times per period
frequencyMax	Σ	0..1	positiveInt	Event occurs up to frequencyMax times per period
period	Σ	0..1	decimal	Event occurs frequency times per period
periodMax	Σ	0..1	decimal	Upper limit of period (3-4 hours)
periodUnit	Σ	0..1	code	s | min | h | d | wk | mo | a - unit of time (UCUM) Binding: UnitsOfTime (required): A unit of time (units from UCUM).
dayOfWeek	Σ	0..*	code	mon | tue | wed | thu | fri | sat | sun Binding: DaysOfWeek (required)
timeOfDay	Σ	0..*	time	Time of day for action
when	SΣC	0..*	code	Code for time period of occurrence Binding: EventTiming (required): Real world event relating to the schedule.
offset	Σ	0..1	unsignedInt	Minutes from event (before or after)
code	Σ	0..1	CodeableConcept	BID | TID | QID | AM | PM | QD | QOD | + Binding: TimingAbbreviation (preferred): Code for a known / defined timing pattern.
Slices for asNeeded[x]	Σ	0..1		Take "as needed" (for x) Slice: Unordered, Open by type:$this Binding: SNOMEDCTMedicationAsNeededReasonCodes (example): A coded concept identifying the precondition that should be met or evaluated prior to consuming or administering a medication dose. For example "pain", "30 minutes prior to sexual intercourse", "on flare-up" etc.
asNeededBoolean			boolean
asNeededCodeableConcept			CodeableConcept
asNeeded[x]:asNeededBoolean	Σ	0..1	boolean	In reserve (to be taken by the patient only if the need arises - e.g. pains)
site	Σ	0..1	CodeableConcept	Body site to administer to Binding: SNOMEDCTAnatomicalStructureForAdministrationSiteCodes (example): A coded concept describing the site location the medicine enters into or onto the body.
route	Σ	0..1	CodeableConcept	Route of administration Binding: EDQM - RouteOfAdministration (required)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
coding	SΣ	1..*	Coding	Code defined by a terminology system
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	1..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
text	Σ	0..1	string	Plain text representation of the concept
method	Σ	0..1	CodeableConcept	Technique for administering medication Binding: SNOMEDCTAdministrationMethodCodes (example): A coded concept describing the technique by which the medicine is administered.
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	0..1		Amount of medication per dose
doseRange			Range(CHEMEDRangeWithEmedUnits)
doseQuantity			Quantity(CHEMEDQuantityWithEmedUnits)
rate[x]	Σ	0..1		Amount of medication per unit of time
rateRatio			Ratio
rateRange			Range
rateQuantity			Quantity(SimpleQuantity)
maxDosePerPeriod	Σ	0..1	Ratio	Upper limit on medication per unit of time
maxDosePerAdministration	Σ	0..1	SimpleQuantity	Upper limit on medication per administration
maxDosePerLifetime	Σ	0..1	SimpleQuantity	Upper limit on medication per lifetime of the patient
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
Dosage.additionalInstruction	example	SNOMEDCTAdditionalDosageInstructions
Dosage.timing.repeat.durationUnit	required	UnitsOfTime
Dosage.timing.repeat.periodUnit	required	UnitsOfTime
Dosage.timing.repeat.dayOfWeek	required	DaysOfWeek
Dosage.timing.repeat.when	required	EventTiming
Dosage.timing.code	preferred	TimingAbbreviation
Dosage.asNeeded[x]	example	SNOMEDCTMedicationAsNeededReasonCodes
Dosage.site	example	SNOMEDCTAnatomicalStructureForAdministrationSiteCodes
Dosage.route	required	RouteOfAdministrationEDQM
Dosage.method	example	SNOMEDCTAdministrationMethodCodes
Dosage.doseAndRate.type	example	DoseAndRateType

Constraints

Id	Grade	Path(s)	Details	Requirements
ch-dosage-1	error	Dosage.sequence	No sequence number (for one dosage element) or sequence number = 1 (for more than one dosage element) : $this.count() = 0 or $this = 1
ch-dosage-3	error	Dosage	Patient instruction/free text dosage instruction, timing or as needed has to be specified : patientInstruction.exists() or timing.exists() or asNeeded.exists()
ch-dosage-4	error	Dosage	For split dosage timing event and dose/rate are required : sequence.exists() implies (timing.repeat.when.exists() and doseAndRate.dose.exists())
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()

This structure is derived from CHEMEDDosage

Summary

Mandatory: 1 element

Other representations of profile: CSV, Excel, Schematron