CH EMED EPR
1.0.0 - trial-use Switzerland flag

This page is part of the FHIR eMedication exchange formats for the implementation effort of CARA within its EPR community (v1.0.0: STU1) 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

Data Type Profile: CHEMEDEPRDosageMedicationRequest - Detailed Descriptions

Draft as of 2024-01-26

Definitions for the ch-emed-epr-dosage-medicationrequest data type profile.

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

0. Dosage
2. Dosage.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
4. Dosage.modifierExtension
Comments

...All modifiers SHALL be documented in the profile, in order to be usable.

Control0..0
6. Dosage.text
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
8. Dosage.additionalInstruction
10. Dosage.additionalInstruction.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
12. Dosage.additionalInstruction.text
Control1..?
14. Dosage.timing
16. Dosage.timing.id
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
18. Dosage.timing.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
20. Dosage.timing.modifierExtension
Comments

...All modifiers SHALL be documented in the profile, in order to be usable.

Control0..0
22. Dosage.timing.event
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
24. Dosage.timing.repeat
26. Dosage.timing.repeat.id
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
28. Dosage.timing.repeat.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
30. Dosage.timing.repeat.bounds[x]
TypePeriod, Duration, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
32. Dosage.timing.repeat.count
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
34. Dosage.timing.repeat.countMax
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
36. Dosage.timing.repeat.duration
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
38. Dosage.timing.repeat.durationMax
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
40. Dosage.timing.repeat.durationUnit
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
42. Dosage.timing.repeat.frequency
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
44. Dosage.timing.repeat.frequencyMax
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
46. Dosage.timing.repeat.period
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
48. Dosage.timing.repeat.periodMax
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
50. Dosage.timing.repeat.periodUnit
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
52. Dosage.timing.repeat.dayOfWeek
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
54. Dosage.timing.repeat.timeOfDay
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
56. Dosage.timing.repeat.when
Short... It shall only contain values from Event Timings
Invariantsonly-standard-event-timings: The timing event shall only be 'MORN', 'NOON', 'EVE' or 'NIGHT'. ($this = 'MORN' or $this = 'NOON' or $this = 'EVE' or $this = 'NIGHT')
58. Dosage.timing.repeat.offset
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
60. Dosage.timing.code
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
62. Dosage.asNeeded[x]
Typeboolean, CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
64. Dosage.asNeeded[x]:asNeededBoolean
Slice NameasNeededBoolean
Definition

...'true' if the medication is 'in reserve'. By default 'true'.

Typeboolean
[x] NoteSee Choice of Data Types for further information about how to use [x]
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
66. Dosage.site
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
68. Dosage.site.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
70. Dosage.site.text
Control1..?
72. Dosage.route
Definition

...Implementers SHOULD focus on supporting values from the value set Route of Administration.

74. Dosage.route.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
76. Dosage.route.text
Control1..?
78. Dosage.method
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
80. Dosage.method.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
82. Dosage.method.text
Control1..?
84. Dosage.doseAndRate
86. Dosage.doseAndRate.type
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Standards StatusDraft (from Trial Use)
88. Dosage.doseAndRate.dose[x]
[x] NoteSee Choice of Data Types for further information about how to use [x]
SlicingThis element introduces a set of slices on Dosage.doseAndRate.dose[x]. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • type @ $this
90. Dosage.doseAndRate.dose[x]:doseQuantity
Slice NamedoseQuantity
Control0..1
TypeQuantity(Amount Quantity)
[x] NoteSee Choice of Data Types for further information about how to use [x]
92. Dosage.doseAndRate.dose[x]:doseRange
Slice NamedoseRange
Control0..1
TypeRange(Amount Range)
[x] NoteSee Choice of Data Types for further information about how to use [x]
94. Dosage.doseAndRate.rate[x]
TypeRatio(Ratio (Amount / Time)), Quantity(SimpleQuantity), Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
96. Dosage.maxDosePerPeriod
TypeRatio(Ratio (Amount / Time))
98. Dosage.maxDosePerAdministration
TypeQuantity(Amount Quantity)
100. Dosage.maxDosePerLifetime
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
TypeQuantity(Amount Quantity)
Standards StatusDraft (from Trial Use)

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

0. Dosage
Definition

Indicates how the medication is/was taken or should be taken by the patient.

ShortCH EMED Dosage (MedicationRequest)How the medication is/was taken or should be taken
Control0..*
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ch-dosage-4: For split dosage timing event and dose/rate are required (sequence.exists() implies (timing.repeat.when.exists() and doseAndRate.dose.exists()))
ch-dosage-3: Patient instruction/free text dosage instruction, timing or as needed has to be specified (patientInstruction.exists() or timing.exists() or asNeeded.exists())
2. Dosage.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


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✕ This element is not supportedAdditional 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.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
4. Dosage.modifierExtension
Definition

An Extension


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).

ShortExtensionExtensions that cannot be ignored even if unrecognized
Comments

All modifiers SHALL be documented in the profile, in order to be usable.


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.

Control0..0*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
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 Namesextensions, user content, modifiers
Invariantsele-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())
6. Dosage.text
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


Free text dosage instructions e.g. SIG.

Short✕ This element is not supportedFree text dosage instructions e.g. SIG
Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Free text dosage instructions can be used for cases where the instructions are too complex to code. The content of this attribute does not include the name or description of the medication. When coded instructions are present, the free text instructions may still be present for display to humans taking or administering the medication. It is expected that the text instructions will always be populated. If the dosage.timing attribute is also populated, then the dosage.text should reflect the same information as the timing. Additional information about administration or preparation of the medication should be included as text.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
8. Dosage.patientInstruction
Definition

Instructions in terms that are understood by the patient or consumer.

ShortPatient instructions (e.g. 'take with food'), incl. free text dosage instructions (e.g. for complex dosage)Patient or consumer oriented instructions
Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
10. Dosage.timing
Definition

When medication should be administered.

ShortWhen medication should be administered
Comments

This attribute might not always be populated while the Dosage.text is expected to be populated. If both are populated, then the Dosage.text should reflect the content of the Dosage.timing.

Control0..1
TypeTiming
Is Modifierfalse
Summarytrue
Requirements

The timing schedule for giving the medication to the patient. This data type allows many different expressions. For example: "Every 8 hours"; "Three times a day"; "1/2 an hour before breakfast for 10 days from 23-Dec 2011:"; "15 Oct 2013, 17 Oct 2013 and 1 Nov 2013". Sometimes, a rate can imply duration when expressed as total volume / duration (e.g. 500mL/2 hours implies a duration of 2 hours). However, when rate doesn't imply duration (e.g. 250mL/hour), then the timing.repeat.duration is needed to convey the infuse over time period.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
12. Dosage.timing.id
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Short✕ This element is not supportedUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
14. Dosage.timing.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


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✕ This element is not supportedAdditional 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.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.timing.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
16. Dosage.timing.modifierExtension
Definition

An Extension


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).

ShortExtensionExtensions that cannot be ignored even if unrecognized
Comments

All modifiers SHALL be documented in the profile, in order to be usable.


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.

Control0..0*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
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 Namesextensions, user content, modifiers
Invariantsele-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())
18. Dosage.timing.event
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


Identifies specific times when the event occurs.

Short✕ This element is not supportedWhen the event occurs
Control0..*
TypedateTime
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

In a Medication Administration Record, for instance, you need to take a general specification, and turn it into a precise specification.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
20. Dosage.timing.repeat
Definition

A set of rules that describe when the event is scheduled.

ShortWhen the event is to occur
Control0..1
TypeElement
Is Modifierfalse
Summarytrue
Requirements

Many timing schedules are determined by regular repetitions.

Invariantsele-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())
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())
22. Dosage.timing.repeat.id
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Short✕ This element is not supportedUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
24. Dosage.timing.repeat.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


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✕ This element is not supportedAdditional 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.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.timing.repeat.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
26. Dosage.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.

ShortLength/Range of lengths, or (Start and/or end) limits
Control0..1
TypePeriod, Duration, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Dosage.timing.repeat.bounds[x]. The slices are unordered and Closed, and can be differentiated using the following discriminators:
  • type @ $this
28. Dosage.timing.repeat.bounds[x]:boundsPeriod
Slice NameboundsPeriod
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.

ShortStart and/or end of treatmentLength/Range of lengths, or (Start and/or end) limits
Control0..1
TypePeriod, Duration, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Must Supporttrue
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
30. Dosage.timing.repeat.count
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


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✕ This element is not supportedNumber of times to repeat
Comments

If you have both bounds and count, then this should be understood as within the bounds period, until count times happens.

Control0..1
TypepositiveInt
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Repetitions may be limited by end time or total occurrences.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
32. Dosage.timing.repeat.countMax
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


If present, indicates that the count is a range - so to perform the action between [count] and [countMax] times.

Short✕ This element is not supportedMaximum number of times to repeat
Control0..1
TypepositiveInt
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
34. Dosage.timing.repeat.duration
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


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✕ This element is not supportedHow long when it happens
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).

Control0..1
Typedecimal
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Some activities are not instantaneous and need to be maintained for a period of time.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
36. Dosage.timing.repeat.durationMax
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


If present, indicates that the duration is a range - so to perform the action between [duration] and [durationMax] time length.

Short✕ This element is not supportedHow 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).

Control0..1
Typedecimal
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Some activities are not instantaneous and need to be maintained for a period of time.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
38. Dosage.timing.repeat.durationUnit
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


The units of time for the duration, in UCUM units.

Short✕ This element is not supporteds | min | h | d | wk | mo | a - unit of time (UCUM)
Control0..1
BindingThe codes SHALL be taken from UnitsOfTimehttp://hl7.org/fhir/ValueSet/units-of-time|4.0.1
(required to http://hl7.org/fhir/ValueSet/units-of-time|4.0.1
Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
40. Dosage.timing.repeat.frequency
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


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✕ This element is not supportedEvent occurs frequency times per period
Control0..1
TypepositiveInt
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Meaning if MissingIf no frequency is stated, the assumption is that the event occurs once per period, but systems SHOULD always be specific about this
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
42. Dosage.timing.repeat.frequencyMax
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


If present, indicates that the frequency is a range - so to repeat between [frequency] and [frequencyMax] times within the period or period range.

Short✕ This element is not supportedEvent occurs up to frequencyMax times per period
Control0..1
TypepositiveInt
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
44. Dosage.timing.repeat.period
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


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✕ This element is not supportedEvent occurs frequency times per period
Control0..1
Typedecimal
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
46. Dosage.timing.repeat.periodMax
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


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✕ This element is not supportedUpper limit of period (3-4 hours)
Control0..1
Typedecimal
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
48. Dosage.timing.repeat.periodUnit
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


The units of time for the period in UCUM units.

Short✕ This element is not supporteds | min | h | d | wk | mo | a - unit of time (UCUM)
Control0..1
BindingThe codes SHALL be taken from UnitsOfTimehttp://hl7.org/fhir/ValueSet/units-of-time|4.0.1
(required to http://hl7.org/fhir/ValueSet/units-of-time|4.0.1
Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
50. Dosage.timing.repeat.dayOfWeek
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


If one or more days of week is provided, then the action happens only on the specified day(s).

Short✕ This element is not supportedmon | 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.

Control0..*
BindingThe codes SHALL be taken from DaysOfWeekhttp://hl7.org/fhir/ValueSet/days-of-week|4.0.1
(required to http://hl7.org/fhir/ValueSet/days-of-week|4.0.1
Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
52. Dosage.timing.repeat.timeOfDay
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


Specified time of day for action to take place.

Short✕ This element is not supportedTime of day for action
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.

Control0..*
Typetime
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
54. Dosage.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... It shall only contain values from Event TimingsCode for time period of occurrence
Comments

When more than one event is listed, the event is tied to the union of the specified events.

Control0..*
BindingThe codes SHALL be taken from EventTiminghttp://hl7.org/fhir/ValueSet/event-timing|4.0.1
(required to http://hl7.org/fhir/ValueSet/event-timing|4.0.1
Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Requirements

Timings are frequently determined by occurrences such as waking, eating and sleep.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
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. ($this='MORN' or $this='NOON' or $this='EVE' or $this='NIGHT')
only-standard-event-timings: The timing event shall only be 'MORN', 'NOON', 'EVE' or 'NIGHT'. ($this = 'MORN' or $this = 'NOON' or $this = 'EVE' or $this = 'NIGHT')
56. Dosage.timing.repeat.offset
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


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✕ This element is not supportedMinutes from event (before or after)
Control0..1
TypeunsignedInt
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
58. Dosage.timing.code
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


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✕ This element is not supportedBID | 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).

Control0..1
BindingThe codes SHOULD be taken from TimingAbbreviationhttp://hl7.org/fhir/ValueSet/timing-abbreviation
(preferred to http://hl7.org/fhir/ValueSet/timing-abbreviation
TypeCodeableConcept
Is Modifierfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
60. Dosage.asNeeded[x]
Definition

Indicates whether the Medication is only taken when needed within a specific dosing schedule (Boolean option), or it indicates the precondition for taking the Medication (CodeableConcept).

ShortTake "as needed" (for x)
Comments

Can express "as needed" without a reason by setting the Boolean = True. In this case the CodeableConcept is not populated. Or you can express "as needed" with a reason by including the CodeableConcept. In this case the Boolean is assumed to be True. If you set the Boolean to False, then the dose is given according to the schedule and is not "prn" or "as needed".

Control0..1
Typeboolean, CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Dosage.asNeeded[x]. The slices are unordered and Closed, and can be differentiated using the following discriminators:
  • type @ $this
62. Dosage.asNeeded[x]:asNeededBoolean
Slice NameasNeededBoolean
Definition

Indicates whether the Medication is only taken when needed within a specific dosing schedule (Boolean option), or it indicates the precondition for taking the Medication (CodeableConcept). 'true' if the medication is 'in reserve'. By default 'true'.


Indicates whether the Medication is only taken when needed within a specific dosing schedule (Boolean option), or it indicates the precondition for taking the Medication (CodeableConcept).

ShortIn reserve (to be taken by the patient only if the need arises - e.g. pains)Take "as needed" (for x)
Comments

Can express "as needed" without a reason by setting the Boolean = True. In this case the CodeableConcept is not populated. Or you can express "as needed" with a reason by including the CodeableConcept. In this case the Boolean is assumed to be True. If you set the Boolean to False, then the dose is given according to the schedule and is not "prn" or "as needed".

Control0..1
Typeboolean, CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
64. Dosage.site
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


Body site to administer to.

Short✕ This element is not supportedBody site to administer to
Comments

If the use case requires attributes from the BodySite resource (e.g. to identify and track separately) then use the standard extension bodySite. May be a summary code, or a reference to a very precise definition of the location, or both.

Control0..1
BindingFor example codes, see SNOMEDCTAnatomicalStructureForAdministrationSiteCodeshttp://hl7.org/fhir/ValueSet/approach-site-codes
(example to http://hl7.org/fhir/ValueSet/approach-site-codes
TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

A coded specification of the anatomic site where the medication first enters the body.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
66. Dosage.site.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


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✕ This element is not supportedAdditional 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.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.site.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
68. Dosage.site.text
Definition

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

ShortPlain text representation of the concept
Comments

Very often the text is the same as a displayName of one of the codings.

Control10..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
70. Dosage.route
Definition

How drug should enter body. Implementers SHOULD focus on supporting values from the value set Route of Administration.


How drug should enter body.

ShortRoute of administrationHow drug should enter body
Control0..1
BindingThe codes SHALL be taken from For example codes, see EDQM - RouteOfAdministrationhttp://hl7.org/fhir/ValueSet/route-codes
(required to http://fhir.ch/ig/ch-emed/ValueSet/edqm-routeofadministration
TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

A code specifying the route or physiological path of administration of a therapeutic agent into or onto a patient's body.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
72. Dosage.route.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


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✕ This element is not supportedAdditional 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.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.route.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
74. Dosage.route.coding
Definition

A reference to a code defined by a terminology system.

ShortCode defined by a terminology system
Comments

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Control10..*
TypeCoding
Is Modifierfalse
Must Supporttrue
Summarytrue
Requirements

Allows for alternative encodings within a code system, and translations to other code systems.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
76. Dosage.route.coding.system
Definition

The identification of the code system that defines the meaning of the symbol in the code.

ShortIdentity of the terminology system
Comments

The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

Control10..1
Typeuri
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need to be unambiguous about the source of the definition of the symbol.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
78. Dosage.route.coding.code
Definition

A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

ShortSymbol in syntax defined by the system
Control10..1
Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need to refer to a particular code in the system.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
80. Dosage.route.text
Definition

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

ShortPlain text representation of the concept
Comments

Very often the text is the same as a displayName of one of the codings.

Control10..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
82. Dosage.method
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


Technique for administering medication.

Short✕ This element is not supportedTechnique for administering medication
Comments

Terminologies used often pre-coordinate this term with the route and or form of administration.

Control0..1
BindingFor example codes, see SNOMEDCTAdministrationMethodCodeshttp://hl7.org/fhir/ValueSet/administration-method-codes
(example to http://hl7.org/fhir/ValueSet/administration-method-codes
TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

A coded value indicating the method by which the medication is introduced into or onto the body. Most commonly used for injections. For examples, Slow Push; Deep IV.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
84. Dosage.method.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


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✕ This element is not supportedAdditional 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.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.method.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
86. Dosage.method.text
Definition

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

ShortPlain text representation of the concept
Comments

Very often the text is the same as a displayName of one of the codings.

Control10..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
88. Dosage.doseAndRate
Definition

The amount of medication administered.

ShortAmount of medication administered
Control10..1*
TypeElement
Is Modifierfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
90. Dosage.doseAndRate.type
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


The kind of dose or rate specified, for example, ordered or calculated.

Short✕ This element is not supportedThe kind of dose or rate specified
Control0..1
BindingFor example codes, see DoseAndRateTypehttp://hl7.org/fhir/ValueSet/dose-rate-type
(example to http://hl7.org/fhir/ValueSet/dose-rate-type
TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

If the type is not populated, assume to be "ordered".

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
92. Dosage.doseAndRate.dose[x]
Definition

Amount of medication per dose.

ShortAmount of medication per dose
Comments

Note that this specifies the quantity of the specified medication, not the quantity for each active ingredient(s). Each ingredient amount can be communicated in the Medication resource. For example, if one wants to communicate that a tablet was 375 mg, where the dose was one tablet, you can use the Medication resource to document that the tablet was comprised of 375 mg of drug XYZ. Alternatively if the dose was 375 mg, then you may only need to use the Medication resource to indicate this was a tablet. If the example were an IV such as dopamine and you wanted to communicate that 400mg of dopamine was mixed in 500 ml of some IV solution, then this would all be communicated in the Medication resource. If the administration is not intended to be instantaneous (rate is present or timing has a duration), this can be specified to convey the total amount to be administered over the period of time as indicated by the schedule e.g. 500 ml in dose, with timing used to convey that this should be done over 4 hours.

Control0..1
TypeChoice of: Range(CH EMED Range with Units), Quantity(CH EMED Quantity with Units, SimpleQuantity)
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summarytrue
Requirements

The amount of therapeutic or other substance given at one administration event.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Dosage.doseAndRate.dose[x]. The slices are unordered and Closed, and can be differentiated using the following discriminators:
  • type @ $this
94. Dosage.doseAndRate.dose[x]:doseQuantity
Slice NamedoseQuantity
Definition

The comparator is not used on a SimpleQuantity


Amount of medication per dose.

ShortA fixed quantity (no comparator)Amount of medication per dose
Comments

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.


Note that this specifies the quantity of the specified medication, not the quantity for each active ingredient(s). Each ingredient amount can be communicated in the Medication resource. For example, if one wants to communicate that a tablet was 375 mg, where the dose was one tablet, you can use the Medication resource to document that the tablet was comprised of 375 mg of drug XYZ. Alternatively if the dose was 375 mg, then you may only need to use the Medication resource to indicate this was a tablet. If the example were an IV such as dopamine and you wanted to communicate that 400mg of dopamine was mixed in 500 ml of some IV solution, then this would all be communicated in the Medication resource. If the administration is not intended to be instantaneous (rate is present or timing has a duration), this can be specified to convey the total amount to be administered over the period of time as indicated by the schedule e.g. 500 ml in dose, with timing used to convey that this should be done over 4 hours.

Control0..1
This element is affected by the following invariants: ele-1
TypeQuantity(Amount Quantity, SimpleQuantity), Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Must Supporttrue
Requirements

The amount of therapeutic or other substance given at one administration event.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())
96. Dosage.doseAndRate.dose[x]:doseRange
Slice NamedoseRange
Definition

A set of ordered Quantities defined by a low and high limit.


Amount of medication per dose.

ShortSet of values bounded by low and highAmount of medication per dose
Comments

The stated low and high value are assumed to have arbitrarily high precision when it comes to determining which values are in the range. I.e. 1.99 is not in the range 2 -> 3.


Note that this specifies the quantity of the specified medication, not the quantity for each active ingredient(s). Each ingredient amount can be communicated in the Medication resource. For example, if one wants to communicate that a tablet was 375 mg, where the dose was one tablet, you can use the Medication resource to document that the tablet was comprised of 375 mg of drug XYZ. Alternatively if the dose was 375 mg, then you may only need to use the Medication resource to indicate this was a tablet. If the example were an IV such as dopamine and you wanted to communicate that 400mg of dopamine was mixed in 500 ml of some IV solution, then this would all be communicated in the Medication resource. If the administration is not intended to be instantaneous (rate is present or timing has a duration), this can be specified to convey the total amount to be administered over the period of time as indicated by the schedule e.g. 500 ml in dose, with timing used to convey that this should be done over 4 hours.

Control0..1
This element is affected by the following invariants: ele-1
TypeRange(Amount Range), Quantity(SimpleQuantity)
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Must Supporttrue
Requirements

The amount of therapeutic or other substance given at one administration event.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
rng-2: If present, low SHALL have a lower value than high (low.empty() or high.empty() or (low <= high))
98. Dosage.doseAndRate.rate[x]
Definition

A relationship of two Quantity values - expressed as a numerator and a denominator.


Amount of medication per unit of time.

ShortA ratio of two Quantity values - a numerator and a denominatorAmount of medication per unit of time
Comments

The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio.


It is possible to supply both a rate and a doseQuantity to provide full details about how the medication is to be administered and supplied. If the rate is intended to change over time, depending on local rules/regulations, each change should be captured as a new version of the MedicationRequest with an updated rate, or captured with a new MedicationRequest with the new rate.

It is possible to specify a rate over time (for example, 100 ml/hour) using either the rateRatio and rateQuantity. The rateQuantity approach requires systems to have the capability to parse UCUM grammer where ml/hour is included rather than a specific ratio where the time is specified as the denominator. Where a rate such as 500ml over 2 hours is specified, the use of rateRatio may be more semantically correct than specifying using a rateQuantity of 250 mg/hour.

Control0..1
This element is affected by the following invariants: ele-1
TypeRatio(Ratio (Amount / Time)), Quantity(SimpleQuantity), Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Requirements

Identifies the speed with which the medication was or will be introduced into the patient. Typically the rate for an infusion e.g. 100 ml per 1 hour or 100 ml/hr. May also be expressed as a rate per unit of time e.g. 500 ml per 2 hours. Other examples: 200 mcg/min or 200 mcg/1 minute; 1 liter/8 hours. Sometimes, a rate can imply duration when expressed as total volume / duration (e.g. 500mL/2 hours implies a duration of 2 hours). However, when rate doesn't imply duration (e.g. 250mL/hour), then the timing.repeat.duration is needed to convey the infuse over time period.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
rat-1: Numerator and denominator SHALL both be present, or both are absent. If both are absent, there SHALL be some extension present ((numerator.empty() xor denominator.exists()) and (numerator.exists() or extension.exists()))
100. Dosage.maxDosePerPeriod
Definition

A relationship of two Quantity values - expressed as a numerator and a denominator.


Upper limit on medication per unit of time.

ShortA ratio of two Quantity values - a numerator and a denominatorUpper limit on medication per unit of time
Comments

The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio.


This is intended for use as an adjunct to the dosage when there is an upper cap. For example "2 tablets every 4 hours to a maximum of 8/day".

Control0..1
This element is affected by the following invariants: ele-1
TypeRatio(Ratio (Amount / Time))
Is Modifierfalse
Requirements

The maximum total quantity of a therapeutic substance that may be administered to a subject over the period of time. For example, 1000mg in 24 hours.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
rat-1: Numerator and denominator SHALL both be present, or both are absent. If both are absent, there SHALL be some extension present ((numerator.empty() xor denominator.exists()) and (numerator.exists() or extension.exists()))
102. Dosage.maxDosePerAdministration
Definition

The comparator is not used on a SimpleQuantity


Upper limit on medication per administration.

ShortA fixed quantity (no comparator)Upper limit on medication per administration
Comments

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.


This is intended for use as an adjunct to the dosage when there is an upper cap. For example, a body surface area related dose with a maximum amount, such as 1.5 mg/m2 (maximum 2 mg) IV over 5 – 10 minutes would have doseQuantity of 1.5 mg/m2 and maxDosePerAdministration of 2 mg.

Control0..1
This element is affected by the following invariants: ele-1
TypeQuantity(Amount Quantity, SimpleQuantity)
Is Modifierfalse
Requirements

The maximum total quantity of a therapeutic substance that may be administered to a subject per administration.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())
104. Dosage.maxDosePerLifetime
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.


Upper limit on medication per lifetime of the patient.

Short✕ This element is not supportedUpper limit on medication per lifetime of the patient
Comments

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

Control0..1
This element is affected by the following invariants: ele-1
TypeQuantity(Amount Quantity, SimpleQuantity)
Is Modifierfalse
Requirements

The maximum total quantity of a therapeutic substance that may be administered per lifetime of the subject.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())

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

0. Dosage
Definition

Indicates how the medication is/was taken or should be taken by the patient.

ShortCH EMED Dosage (MedicationRequest)
Control0..*
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ch-dosage-4: For split dosage timing event and dose/rate are required (sequence.exists() implies (timing.repeat.when.exists() and doseAndRate.dose.exists()))
ch-dosage-3: Patient instruction/free text dosage instruction, timing or as needed has to be specified (patientInstruction.exists() or timing.exists() or asNeeded.exists())
2. Dosage.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
4. Dosage.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
6. Dosage.modifierExtension
Definition

An Extension

ShortExtension
Comments

All modifiers SHALL be documented in the profile, in order to be usable.

Control0..0
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Invariantsele-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. Dosage.sequence
Definition

Indicates the order in which the dosage instructions should be applied or interpreted.

ShortThe order of the dosage instructions
Control0..1
Typeinteger
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

If the sequence number of multiple Dosages is the same, then it is implied that the instructions are to be treated as concurrent. If the sequence number is different, then the Dosages are intended to be sequential.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ch-dosage-1: No sequence number (for one dosage element) or sequence number = 1 (for more than one dosage element) ($this.count() = 0 or $this = 1)
10. Dosage.text
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Free text dosage instructions can be used for cases where the instructions are too complex to code. The content of this attribute does not include the name or description of the medication. When coded instructions are present, the free text instructions may still be present for display to humans taking or administering the medication. It is expected that the text instructions will always be populated. If the dosage.timing attribute is also populated, then the dosage.text should reflect the same information as the timing. Additional information about administration or preparation of the medication should be included as text.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
12. Dosage.additionalInstruction
Definition

Supplemental instructions to the patient on how to take the medication (e.g. "with meals" or"take half to one hour before food") or warnings for the patient about the medication (e.g. "may cause drowsiness" or "avoid exposure of skin to direct sunlight or sunlamps").

ShortSupplemental instruction or warnings to the patient - e.g. "with meals", "may cause drowsiness"
Comments

Information about administration or preparation of the medication (e.g. "infuse as rapidly as possibly via intraperitoneal port" or "immediately following drug x") should be populated in dosage.text.

Control0..*
BindingFor example codes, see SNOMEDCTAdditionalDosageInstructions
(example to http://hl7.org/fhir/ValueSet/additional-instruction-codes
TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Additional instruction is intended to be coded, but where no code exists, the element could include text. For example, "Swallow with plenty of water" which might or might not be coded.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
14. Dosage.additionalInstruction.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
16. Dosage.additionalInstruction.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.additionalInstruction.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
18. Dosage.additionalInstruction.coding
Definition

A reference to a code defined by a terminology system.

ShortCode defined by a terminology system
Comments

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Control0..*
TypeCoding
Is Modifierfalse
Summarytrue
Requirements

Allows for alternative encodings within a code system, and translations to other code systems.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
20. Dosage.additionalInstruction.text
Definition

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

ShortPlain text representation of the concept
Comments

Very often the text is the same as a displayName of one of the codings.

Control1..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
22. Dosage.patientInstruction
Definition

Instructions in terms that are understood by the patient or consumer.

ShortPatient instructions (e.g. 'take with food'), incl. free text dosage instructions (e.g. for complex dosage)
Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
24. Dosage.timing
Definition

When medication should be administered.

ShortWhen medication should be administered
Comments

This attribute might not always be populated while the Dosage.text is expected to be populated. If both are populated, then the Dosage.text should reflect the content of the Dosage.timing.

Control0..1
TypeTiming
Is Modifierfalse
Summarytrue
Requirements

The timing schedule for giving the medication to the patient. This data type allows many different expressions. For example: "Every 8 hours"; "Three times a day"; "1/2 an hour before breakfast for 10 days from 23-Dec 2011:"; "15 Oct 2013, 17 Oct 2013 and 1 Nov 2013". Sometimes, a rate can imply duration when expressed as total volume / duration (e.g. 500mL/2 hours implies a duration of 2 hours). However, when rate doesn't imply duration (e.g. 250mL/hour), then the timing.repeat.duration is needed to convey the infuse over time period.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
26. Dosage.timing.id
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
28. Dosage.timing.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.timing.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
30. Dosage.timing.modifierExtension
Definition

An Extension

ShortExtension
Comments

All modifiers SHALL be documented in the profile, in order to be usable.

Control0..0
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Invariantsele-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())
32. Dosage.timing.event
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..*
TypedateTime
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

In a Medication Administration Record, for instance, you need to take a general specification, and turn it into a precise specification.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
34. Dosage.timing.repeat
Definition

A set of rules that describe when the event is scheduled.

ShortWhen the event is to occur
Control0..1
TypeElement
Is Modifierfalse
Summarytrue
Requirements

Many timing schedules are determined by regular repetitions.

Invariantsele-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())
36. Dosage.timing.repeat.id
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
38. Dosage.timing.repeat.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.timing.repeat.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
40. Dosage.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.

ShortLength/Range of lengths, or (Start and/or end) limits
Control0..1
TypePeriod
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Dosage.timing.repeat.bounds[x]. The slices are unordered and Closed, and can be differentiated using the following discriminators:
  • type @ $this
42. Dosage.timing.repeat.bounds[x]:boundsPeriod
Slice NameboundsPeriod
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.

ShortStart and/or end of treatment
Control0..1
TypePeriod
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Must Supporttrue
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
44. Dosage.timing.repeat.count
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Comments

If you have both bounds and count, then this should be understood as within the bounds period, until count times happens.

Control0..1
TypepositiveInt
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Repetitions may be limited by end time or total occurrences.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
46. Dosage.timing.repeat.countMax
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..1
TypepositiveInt
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
48. Dosage.timing.repeat.duration
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
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).

Control0..1
Typedecimal
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Some activities are not instantaneous and need to be maintained for a period of time.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
50. Dosage.timing.repeat.durationMax
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
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).

Control0..1
Typedecimal
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Some activities are not instantaneous and need to be maintained for a period of time.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
52. Dosage.timing.repeat.durationUnit
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..1
BindingThe codes SHALL be taken from UnitsOfTime
(required to http://hl7.org/fhir/ValueSet/units-of-time|4.0.1
Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
54. Dosage.timing.repeat.frequency
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..1
TypepositiveInt
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Meaning if MissingIf no frequency is stated, the assumption is that the event occurs once per period, but systems SHOULD always be specific about this
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
56. Dosage.timing.repeat.frequencyMax
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..1
TypepositiveInt
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
58. Dosage.timing.repeat.period
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..1
Typedecimal
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
60. Dosage.timing.repeat.periodMax
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..1
Typedecimal
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
62. Dosage.timing.repeat.periodUnit
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..1
BindingThe codes SHALL be taken from UnitsOfTime
(required to http://hl7.org/fhir/ValueSet/units-of-time|4.0.1
Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
64. Dosage.timing.repeat.dayOfWeek
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
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.

Control0..*
BindingThe codes SHALL be taken from DaysOfWeek
(required to http://hl7.org/fhir/ValueSet/days-of-week|4.0.1
Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
66. Dosage.timing.repeat.timeOfDay
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
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.

Control0..*
Typetime
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
68. Dosage.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... It shall only contain values from Event Timings
Comments

When more than one event is listed, the event is tied to the union of the specified events.

Control0..*
BindingThe codes SHALL be taken from EventTiming
(required to http://hl7.org/fhir/ValueSet/event-timing|4.0.1
Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supporttrue
Summarytrue
Requirements

Timings are frequently determined by occurrences such as waking, eating and sleep.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
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. ($this='MORN' or $this='NOON' or $this='EVE' or $this='NIGHT')
only-standard-event-timings: The timing event shall only be 'MORN', 'NOON', 'EVE' or 'NIGHT'. ($this = 'MORN' or $this = 'NOON' or $this = 'EVE' or $this = 'NIGHT')
70. Dosage.timing.repeat.offset
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..1
TypeunsignedInt
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
72. Dosage.timing.code
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
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).

Control0..1
BindingThe codes SHOULD be taken from TimingAbbreviation
(preferred to http://hl7.org/fhir/ValueSet/timing-abbreviation
TypeCodeableConcept
Is Modifierfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
74. Dosage.asNeeded[x]
Definition

Indicates whether the Medication is only taken when needed within a specific dosing schedule (Boolean option), or it indicates the precondition for taking the Medication (CodeableConcept).

ShortTake "as needed" (for x)
Comments

Can express "as needed" without a reason by setting the Boolean = True. In this case the CodeableConcept is not populated. Or you can express "as needed" with a reason by including the CodeableConcept. In this case the Boolean is assumed to be True. If you set the Boolean to False, then the dose is given according to the schedule and is not "prn" or "as needed".

Control0..1
Typeboolean
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Dosage.asNeeded[x]. The slices are unordered and Closed, and can be differentiated using the following discriminators:
  • type @ $this
76. Dosage.asNeeded[x]:asNeededBoolean
Slice NameasNeededBoolean
Definition

Indicates whether the Medication is only taken when needed within a specific dosing schedule (Boolean option), or it indicates the precondition for taking the Medication (CodeableConcept). 'true' if the medication is 'in reserve'. By default 'true'.

ShortIn reserve (to be taken by the patient only if the need arises - e.g. pains)
Comments

Can express "as needed" without a reason by setting the Boolean = True. In this case the CodeableConcept is not populated. Or you can express "as needed" with a reason by including the CodeableConcept. In this case the Boolean is assumed to be True. If you set the Boolean to False, then the dose is given according to the schedule and is not "prn" or "as needed".

Control0..1
Typeboolean
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
78. Dosage.site
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Comments

If the use case requires attributes from the BodySite resource (e.g. to identify and track separately) then use the standard extension bodySite. May be a summary code, or a reference to a very precise definition of the location, or both.

Control0..1
BindingFor example codes, see SNOMEDCTAnatomicalStructureForAdministrationSiteCodes
(example to http://hl7.org/fhir/ValueSet/approach-site-codes
TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

A coded specification of the anatomic site where the medication first enters the body.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
80. Dosage.site.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
82. Dosage.site.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.site.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
84. Dosage.site.coding
Definition

A reference to a code defined by a terminology system.

ShortCode defined by a terminology system
Comments

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Control0..*
TypeCoding
Is Modifierfalse
Summarytrue
Requirements

Allows for alternative encodings within a code system, and translations to other code systems.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
86. Dosage.site.text
Definition

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

ShortPlain text representation of the concept
Comments

Very often the text is the same as a displayName of one of the codings.

Control1..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
88. Dosage.route
Definition

How drug should enter body. Implementers SHOULD focus on supporting values from the value set Route of Administration.

ShortRoute of administration
Control0..1
BindingThe codes SHALL be taken from EDQM - RouteOfAdministration
(required to http://fhir.ch/ig/ch-emed/ValueSet/edqm-routeofadministration
TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

A code specifying the route or physiological path of administration of a therapeutic agent into or onto a patient's body.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
90. Dosage.route.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
92. Dosage.route.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.route.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
94. Dosage.route.coding
Definition

A reference to a code defined by a terminology system.

ShortCode defined by a terminology system
Comments

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Control1..*
TypeCoding
Is Modifierfalse
Must Supporttrue
Summarytrue
Requirements

Allows for alternative encodings within a code system, and translations to other code systems.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
96. Dosage.route.coding.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
98. Dosage.route.coding.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.

ShortAdditional 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.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.route.coding.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
100. Dosage.route.coding.system
Definition

The identification of the code system that defines the meaning of the symbol in the code.

ShortIdentity of the terminology system
Comments

The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

Control1..1
Typeuri
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need to be unambiguous about the source of the definition of the symbol.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
102. Dosage.route.coding.version
Definition

The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

ShortVersion of the system - if relevant
Comments

Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

NoteThis is a business versionId, not a resource version id (see discussion)
Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
104. Dosage.route.coding.code
Definition

A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

ShortSymbol in syntax defined by the system
Control1..1
Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need to refer to a particular code in the system.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
106. Dosage.route.coding.display
Definition

A representation of the meaning of the code in the system, following the rules of the system.

ShortRepresentation defined by the system
Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
108. Dosage.route.coding.userSelected
Definition

Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

ShortIf this coding was chosen directly by the user
Comments

Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

Control0..1
Typeboolean
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
110. Dosage.route.text
Definition

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

ShortPlain text representation of the concept
Comments

Very often the text is the same as a displayName of one of the codings.

Control1..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
112. Dosage.method
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Comments

Terminologies used often pre-coordinate this term with the route and or form of administration.

Control0..1
BindingFor example codes, see SNOMEDCTAdministrationMethodCodes
(example to http://hl7.org/fhir/ValueSet/administration-method-codes
TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

A coded value indicating the method by which the medication is introduced into or onto the body. Most commonly used for injections. For examples, Slow Push; Deep IV.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
114. Dosage.method.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
116. Dosage.method.extension
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.method.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
118. Dosage.method.coding
Definition

A reference to a code defined by a terminology system.

ShortCode defined by a terminology system
Comments

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Control0..*
TypeCoding
Is Modifierfalse
Summarytrue
Requirements

Allows for alternative encodings within a code system, and translations to other code systems.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
120. Dosage.method.text
Definition

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

ShortPlain text representation of the concept
Comments

Very often the text is the same as a displayName of one of the codings.

Control1..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
122. Dosage.doseAndRate
Definition

The amount of medication administered.

ShortAmount of medication administered
Control1..1
TypeElement
Is Modifierfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
124. Dosage.doseAndRate.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
126. Dosage.doseAndRate.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.

ShortAdditional 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.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-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())
SlicingThis element introduces a set of slices on Dosage.doseAndRate.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
128. Dosage.doseAndRate.type
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Control0..1
BindingFor example codes, see DoseAndRateType
(example to http://hl7.org/fhir/ValueSet/dose-rate-type
TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

If the type is not populated, assume to be "ordered".

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
130. Dosage.doseAndRate.dose[x]
Definition

Amount of medication per dose.

ShortAmount of medication per dose
Comments

Note that this specifies the quantity of the specified medication, not the quantity for each active ingredient(s). Each ingredient amount can be communicated in the Medication resource. For example, if one wants to communicate that a tablet was 375 mg, where the dose was one tablet, you can use the Medication resource to document that the tablet was comprised of 375 mg of drug XYZ. Alternatively if the dose was 375 mg, then you may only need to use the Medication resource to indicate this was a tablet. If the example were an IV such as dopamine and you wanted to communicate that 400mg of dopamine was mixed in 500 ml of some IV solution, then this would all be communicated in the Medication resource. If the administration is not intended to be instantaneous (rate is present or timing has a duration), this can be specified to convey the total amount to be administered over the period of time as indicated by the schedule e.g. 500 ml in dose, with timing used to convey that this should be done over 4 hours.

Control0..1
TypeChoice of: Range(CH EMED Range with Units), Quantity(CH EMED Quantity with Units)
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Must Supporttrue
Must Support TypesNo must-support rules about the choice of types/profiles
Summarytrue
Requirements

The amount of therapeutic or other substance given at one administration event.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Dosage.doseAndRate.dose[x]. The slices are unordered and Closed, and can be differentiated using the following discriminators:
  • type @ $this
132. Dosage.doseAndRate.dose[x]:doseQuantity
Slice NamedoseQuantity
Definition

The comparator is not used on a SimpleQuantity

ShortA fixed quantity (no comparator)
Comments

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

Control0..1
This element is affected by the following invariants: ele-1
TypeQuantity(Amount Quantity)
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Must Supporttrue
Requirements

The amount of therapeutic or other substance given at one administration event.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())
134. Dosage.doseAndRate.dose[x]:doseRange
Slice NamedoseRange
Definition

A set of ordered Quantities defined by a low and high limit.

ShortSet of values bounded by low and high
Comments

The stated low and high value are assumed to have arbitrarily high precision when it comes to determining which values are in the range. I.e. 1.99 is not in the range 2 -> 3.

Control0..1
This element is affected by the following invariants: ele-1
TypeRange(Amount Range)
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Must Supporttrue
Requirements

The amount of therapeutic or other substance given at one administration event.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
rng-2: If present, low SHALL have a lower value than high (low.empty() or high.empty() or (low <= high))
136. Dosage.doseAndRate.rate[x]
Definition

A relationship of two Quantity values - expressed as a numerator and a denominator.

ShortA ratio of two Quantity values - a numerator and a denominator
Comments

The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio.

Control0..1
This element is affected by the following invariants: ele-1
TypeRatio(Ratio (Amount / Time))
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Requirements

Identifies the speed with which the medication was or will be introduced into the patient. Typically the rate for an infusion e.g. 100 ml per 1 hour or 100 ml/hr. May also be expressed as a rate per unit of time e.g. 500 ml per 2 hours. Other examples: 200 mcg/min or 200 mcg/1 minute; 1 liter/8 hours. Sometimes, a rate can imply duration when expressed as total volume / duration (e.g. 500mL/2 hours implies a duration of 2 hours). However, when rate doesn't imply duration (e.g. 250mL/hour), then the timing.repeat.duration is needed to convey the infuse over time period.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
rat-1: Numerator and denominator SHALL both be present, or both are absent. If both are absent, there SHALL be some extension present ((numerator.empty() xor denominator.exists()) and (numerator.exists() or extension.exists()))
138. Dosage.maxDosePerPeriod
Definition

A relationship of two Quantity values - expressed as a numerator and a denominator.

ShortA ratio of two Quantity values - a numerator and a denominator
Comments

The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio.

Control0..1
This element is affected by the following invariants: ele-1
TypeRatio(Ratio (Amount / Time))
Is Modifierfalse
Requirements

The maximum total quantity of a therapeutic substance that may be administered to a subject over the period of time. For example, 1000mg in 24 hours.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
rat-1: Numerator and denominator SHALL both be present, or both are absent. If both are absent, there SHALL be some extension present ((numerator.empty() xor denominator.exists()) and (numerator.exists() or extension.exists()))
140. Dosage.maxDosePerAdministration
Definition

The comparator is not used on a SimpleQuantity

ShortA fixed quantity (no comparator)
Comments

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

Control0..1
This element is affected by the following invariants: ele-1
TypeQuantity(Amount Quantity)
Is Modifierfalse
Requirements

The maximum total quantity of a therapeutic substance that may be administered to a subject per administration.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())
142. Dosage.maxDosePerLifetime
Definition

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Short✕ This element is not supported
Comments

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

Control0..1
This element is affected by the following invariants: ele-1
TypeQuantity(Amount Quantity)
Is Modifierfalse
Requirements

The maximum total quantity of a therapeutic substance that may be administered per lifetime of the subject.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
qty-3: If a code for the unit is present, the system SHALL also be present (code.empty() or system.exists())
sqty-1: The comparator is not used on a SimpleQuantity (comparator.empty())