ch-core-dosage
type: StructureDefinition
node role: treeRoot
id:
  v: ch-core-dosage
text:
  status:
    v: extensions
  div:
    v: Generated Narrative: StructureDefinition ch-core-dosage Name Flags Card. Type Description & Constraints<img src="[binary]" alt="doco" style="background-color: inherit"/> Dosage 0..* Dosage CH Core Dosage #xD; route 0..1 CodeableConcept How drug should enter body Binding: EDQM - RouteOfAdministration (preferred) #xD; method 0..1 CodeableConcept Technique for administering medication Binding: EDQM - Administration Method (preferred) #xD; doseAndRate #xD; dose[x] 0..1 Amount of medication per dose #xD; doseRange Range(CHCoreRangeWithEmedUnits) #xD; doseQuantity Quantity(CHCoreQuantityWithEmedUnits) #xD; <img src="[binary]" alt="doco" style="background-color: inherit"/> Documentation for this format
url:
  v: http://fhir.ch/ig/ch-core/StructureDefinition/ch-core-dosage
  l: ch-core-dosage
version:
  v: 6.0.0
name:
  v: CHCoreDosage
title:
  v: CH Core Dosage
status:
  v: active
date:
  v: 2025-12-16T07:58:48+00:00
publisher:
  v: HL7 Switzerland
contact:
  name:
    v: HL7 Switzerland
  telecom:
    system:
      v: url
    value:
      v: https://www.hl7.ch/
contact:
  name:
    v: HL7 Switzerland
  telecom:
    system:
      v: url
    value:
      v: https://www.hl7.ch/
    use:
      v: work
description:
  v: Dosage for medication use cases
jurisdiction:
  coding:
    system:
      v: urn:iso:std:iso:3166
      l: 3166
    code:
      v: CH
copyright:
  v: CC0-1.0
fhir version:
  v: 4.0.1
mapping:
  identity:
    v: rim
  uri:
    v: http://hl7.org/v3
    l: v3
  name:
    v: RIM Mapping
mapping:
  identity:
    v: v2
  uri:
    v: http://hl7.org/v2
    l: v2
  name:
    v: HL7 v2 Mapping
kind:
  v: complex-type
abstract:
  v: false
type:
  v: Dosage
  l: Dosage
base definition:
  v: http://hl7.org/fhir/StructureDefinition/Dosage
  l: Dosage
derivation:
  v: constraint
snapshot:
  extension:
    url:
      v: http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version
      l: snapshot-base-version
    value: String
      v: 4.0.1
  element:
    id:
      v: Dosage
    path:
      v: Dosage
    short:
      v: CH Core Dosage
    definition:
      v: Indicates how the medication is/was taken or should be taken by the patient.
    min:
      v: 0
    max:
      v: *
    base:
      path:
        v: Dosage
      min:
        v: 0
      max:
        v: *
    constraint:
      key:
        v: ele-1
      severity:
        v: error
      human:
        v: All FHIR elements must have a @value or children
      expression:
        v: hasValue() or (children().count() > id.count())
      xpath:
        v: @value|f:*|h:div
      source:
        v: http://hl7.org/fhir/StructureDefinition/Element
        l: Element
    is modifier:
      v: false
    mapping:
      identity:
        v: rim
      map:
        v: n/a
    mapping:
      identity:
        v: rim
      map:
        v: .outboundRelationship[typeCode=COMP].target[classCode=SBADM, moodCode=INT]
  element:
    id:
      v: Dosage.id
    path:
      v: Dosage.id
    representation:
      v: xmlAttr
    short:
      v: Unique id for inter-element referencing
    definition:
      v: Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
    min:
      v: 0
    max:
      v: 1
    base:
      path:
        v: Element.id
      min:
        v: 0
      max:
        v: 1
    type:
      extension:
        value: Url
      code:
        v: http://hl7.org/fhirpath/System.String
        l: System.String
    is modifier:
      v: false
    is summary:
      v: false
    mapping:
      identity:
        v: rim
      map:
        v: n/a
  element:
    id:
      v: Dosage.extension
    path:
      v: Dosage.extension
    slicing:
      description:
        v: Extensions are always sliced by (at least) url
      rules:
        v: open
    short:
      v: Additional content defined by implementations
    definition:
      v: 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.
    comment:
      v: 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.
    alias:
      v: extensions
    alias:
      v: user content
    min:
      v: 0
    max:
      v: *
    base:
      path:
        v: Element.extension
      min:
        v: 0
      max:
        v: *

Url
v: string
l: string

v: value

v: url

code:
  v: Extension
  l: Extension

key:
  v: ele-1
severity:
  v: error
human:
  v: All FHIR elements must have a @value or children
expression:
  v: hasValue() or (children().count() > id.count())
xpath:
  v: @value|f:*|h:div
source:
  v: http://hl7.org/fhir/StructureDefinition/Element
  l: Element

key:
  v: ext-1
severity:
  v: error
human:
  v: Must have either extensions or value[x], not both
expression:
  v: extension.exists() != value.exists()
xpath:
  v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
source:
  v: http://hl7.org/fhir/StructureDefinition/Extension
  l: Extension

v: false

v: false

identity:
  v: rim
map:
  v: n/a

id:
  v: Dosage.modifierExtension
path:
  v: Dosage.modifierExtension
short:
  v: Extensions that cannot be ignored even if unrecognized
definition:
  v: 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).
comment:
  v: 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.
requirements:
  v: 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](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).
alias:
  v: extensions
alias:
  v: user content
alias:
  v: modifiers
min:
  v: 0
max:
  v: *
base:
  path:
    v: BackboneElement.modifierExtension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: true
is modifier reason:
  v: Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
is summary:
  v: true
mapping:
  identity:
    v: rim
  map:
    v: N/A

id:
  v: Dosage.sequence
path:
  v: Dosage.sequence
short:
  v: The order of the dosage instructions
definition:
  v: Indicates the order in which the dosage instructions should be applied or interpreted.
requirements:
  v: 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.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.sequence
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: integer
    l: integer
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: TQ1-1
mapping:
  identity:
    v: rim
  map:
    v: .text

id:
  v: Dosage.text
path:
  v: Dosage.text
short:
  v: Free text dosage instructions e.g. SIG
definition:
  v: Free text dosage instructions e.g. SIG.
requirements:
  v: 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.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.text
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
    l: string
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: RXO-6; RXE-21
mapping:
  identity:
    v: rim
  map:
    v: .text

id:
  v: Dosage.additionalInstruction
path:
  v: Dosage.additionalInstruction
short:
  v: Supplemental instruction or warnings to the patient - e.g. "with meals", "may cause drowsiness"
definition:
  v: 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").
comment:
  v: 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.
requirements:
  v: 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.
min:
  v: 0
max:
  v: *
base:
  path:
    v: Dosage.additionalInstruction
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: CodeableConcept
    l: CodeableConcept
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
binding:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName
      l: elementdefinition-bindingName
    value: String
      v: AdditionalInstruction
  strength:
    v: example
  description:
    v: A coded concept identifying additional instructions such as "take with water" or "avoid operating heavy machinery".
  value set:
    v: http://hl7.org/fhir/ValueSet/additional-instruction-codes|4.0.1
    l: http://hl7.org/fhir/ValueSet/additional-instruction-codes
mapping:
  identity:
    v: v2
  map:
    v: RXO-7
mapping:
  identity:
    v: rim
  map:
    v: .text

id:
  v: Dosage.patientInstruction
path:
  v: Dosage.patientInstruction
short:
  v: Patient or consumer oriented instructions
definition:
  v: Instructions in terms that are understood by the patient or consumer.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.patientInstruction
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: string
    l: string
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: RXO-7
mapping:
  identity:
    v: rim
  map:
    v: .text

id:
  v: Dosage.timing
path:
  v: Dosage.timing
short:
  v: When medication should be administered
definition:
  v: When medication should be administered.
comment:
  v: 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.
requirements:
  v: 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.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.timing
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Timing
    l: Timing
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: rim
  map:
    v: .effectiveTime

id:
  v: Dosage.asNeeded[x]
path:
  v: Dosage.asNeeded[x]
short:
  v: Take "as needed" (for x)
definition:
  v: 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).
comment:
  v: 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".
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.asNeeded[x]
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: boolean
    l: boolean
type:
  code:
    v: CodeableConcept
    l: CodeableConcept
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
binding:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName
      l: elementdefinition-bindingName
    value: String
      v: MedicationAsNeededReason
  strength:
    v: example
  description:
    v: A coded concept identifying the precondition that should be met or evaluated prior to consuming or administering a medication dose. For example "pain", "30 minutes prior to sexual intercourse", "on flare-up" etc.
  value set:
    v: http://hl7.org/fhir/ValueSet/medication-as-needed-reason|4.0.1
    l: http://hl7.org/fhir/ValueSet/medication-as-needed-reason
mapping:
  identity:
    v: v2
  map:
    v: TQ1-9
mapping:
  identity:
    v: rim
  map:
    v: .outboundRelationship[typeCode=PRCN].target[classCode=OBS, moodCode=EVN, code="as needed"].value=boolean or codable concept

id:
  v: Dosage.site
path:
  v: Dosage.site
short:
  v: Body site to administer to
definition:
  v: Body site to administer to.
comment:
  v: If the use case requires attributes from the BodySite resource (e.g. to identify and track separately) then use the standard extension [bodySite](http://hl7.org/fhir/R4/extension-bodysite.html). May be a summary code, or a reference to a very precise definition of the location, or both.
requirements:
  v: A coded specification of the anatomic site where the medication first enters the body.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.site
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: CodeableConcept
    l: CodeableConcept
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
binding:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName
      l: elementdefinition-bindingName
    value: String
      v: MedicationAdministrationSite
  strength:
    v: example
  description:
    v: A coded concept describing the site location the medicine enters into or onto the body.
  value set:
    v: http://hl7.org/fhir/ValueSet/approach-site-codes|4.0.1
    l: http://hl7.org/fhir/ValueSet/approach-site-codes
mapping:
  identity:
    v: v2
  map:
    v: RXR-2
mapping:
  identity:
    v: rim
  map:
    v: .approachSiteCode

id:
  v: Dosage.route
path:
  v: Dosage.route
short:
  v: How drug should enter body
definition:
  v: How drug should enter body.
requirements:
  v: A code specifying the route or physiological path of administration of a therapeutic agent into or onto a patient's body.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.route
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: CodeableConcept
    l: CodeableConcept
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
binding:
  strength:
    v: preferred
  value set:
    v: http://fhir.ch/ig/ch-term/ValueSet/edqm-routeofadministration
    l: edqm-routeofadministration
mapping:
  identity:
    v: v2
  map:
    v: RXR-1
mapping:
  identity:
    v: rim
  map:
    v: .routeCode

id:
  v: Dosage.method
path:
  v: Dosage.method
short:
  v: Technique for administering medication
definition:
  v: Technique for administering medication.
comment:
  v: Terminologies used often pre-coordinate this term with the route and or form of administration.
requirements:
  v: 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.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.method
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: CodeableConcept
    l: CodeableConcept
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
binding:
  strength:
    v: preferred
  value set:
    v: http://fhir.ch/ig/ch-term/ValueSet/edqm-administrationmethod
    l: edqm-administrationmethod
mapping:
  identity:
    v: v2
  map:
    v: RXR-4
mapping:
  identity:
    v: rim
  map:
    v: .doseQuantity

id:
  v: Dosage.doseAndRate
path:
  v: Dosage.doseAndRate
short:
  v: Amount of medication administered
definition:
  v: The amount of medication administered.
min:
  v: 0
max:
  v: *
base:
  path:
    v: Dosage.doseAndRate
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Element
    l: Element
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: TQ1-2

id:
  v: Dosage.doseAndRate.id
path:
  v: Dosage.doseAndRate.id
representation:
  v: xmlAttr
short:
  v: Unique id for inter-element referencing
definition:
  v: Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Element.id
  min:
    v: 0
  max:
    v: 1
type:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type
      l: structuredefinition-fhir-type
    value: Url
      v: string
      l: string
  code:
    v: http://hl7.org/fhirpath/System.String
    l: System.String
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Dosage.doseAndRate.extension
path:
  v: Dosage.doseAndRate.extension
slicing:
  discriminator:
    type:
      v: value
    path:
      v: url
  description:
    v: Extensions are always sliced by (at least) url
  rules:
    v: open
short:
  v: Additional content defined by implementations
definition:
  v: 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.
comment:
  v: 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.
alias:
  v: extensions
alias:
  v: user content
min:
  v: 0
max:
  v: *
base:
  path:
    v: Element.extension
  min:
    v: 0
  max:
    v: *
type:
  code:
    v: Extension
    l: Extension
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
constraint:
  key:
    v: ext-1
  severity:
    v: error
  human:
    v: Must have either extensions or value[x], not both
  expression:
    v: extension.exists() != value.exists()
  xpath:
    v: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])
  source:
    v: http://hl7.org/fhir/StructureDefinition/Extension
    l: Extension
is modifier:
  v: false
is summary:
  v: false
mapping:
  identity:
    v: rim
  map:
    v: n/a

id:
  v: Dosage.doseAndRate.type
path:
  v: Dosage.doseAndRate.type
short:
  v: The kind of dose or rate specified
definition:
  v: The kind of dose or rate specified, for example, ordered or calculated.
requirements:
  v: If the type is not populated, assume to be "ordered".
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.doseAndRate.type
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: CodeableConcept
    l: CodeableConcept
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
binding:
  extension:
    url:
      v: http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName
      l: elementdefinition-bindingName
    value: String
      v: DoseAndRateType
  strength:
    v: example
  description:
    v: The kind of dose or rate specified.
  value set:
    v: http://hl7.org/fhir/ValueSet/dose-rate-type|4.0.1
    l: http://hl7.org/fhir/ValueSet/dose-rate-type
mapping:
  identity:
    v: v2
  map:
    v: RXO-21; RXE-23

id:
  v: Dosage.doseAndRate.dose[x]
path:
  v: Dosage.doseAndRate.dose[x]
short:
  v: Amount of medication per dose
definition:
  v: Amount of medication per dose.
comment:
  v: 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.
requirements:
  v: The amount of therapeutic or other substance given at one administration event.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.doseAndRate.dose[x]
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Range
    l: Range
  profile:
    v: http://fhir.ch/ig/ch-core/StructureDefinition/ch-core-range-with-emed-units
    l: ch-core-range-with-emed-units
type:
  code:
    v: Quantity
    l: Quantity
  profile:
    v: http://fhir.ch/ig/ch-core/StructureDefinition/ch-core-quantity-with-emed-units
    l: ch-core-quantity-with-emed-units
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: RXO-2, RXE-3
mapping:
  identity:
    v: rim
  map:
    v: .doseQuantity

id:
  v: Dosage.doseAndRate.rate[x]
path:
  v: Dosage.doseAndRate.rate[x]
short:
  v: Amount of medication per unit of time
definition:
  v: Amount of medication per unit of time.
comment:
  v: 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.
requirements:
  v: 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.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.doseAndRate.rate[x]
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Ratio
    l: Ratio
type:
  code:
    v: Range
    l: Range
type:
  code:
    v: Quantity
    l: Quantity
  profile:
    v: http://hl7.org/fhir/StructureDefinition/SimpleQuantity|4.0.1
    l: http://hl7.org/fhir/StructureDefinition/SimpleQuantity
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: RXE22, RXE23, RXE-24
mapping:
  identity:
    v: rim
  map:
    v: .rateQuantity

id:
  v: Dosage.maxDosePerPeriod
path:
  v: Dosage.maxDosePerPeriod
short:
  v: Upper limit on medication per unit of time
definition:
  v: Upper limit on medication per unit of time.
comment:
  v: 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".
requirements:
  v: 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.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.maxDosePerPeriod
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Ratio
    l: Ratio
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: v2
  map:
    v: RXO-23, RXE-19
mapping:
  identity:
    v: rim
  map:
    v: .maxDoseQuantity

id:
  v: Dosage.maxDosePerAdministration
path:
  v: Dosage.maxDosePerAdministration
short:
  v: Upper limit on medication per administration
definition:
  v: Upper limit on medication per administration.
comment:
  v: 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.
requirements:
  v: The maximum total quantity of a therapeutic substance that may be administered to a subject per administration.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.maxDosePerAdministration
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Quantity
    l: Quantity
  profile:
    v: http://hl7.org/fhir/StructureDefinition/SimpleQuantity|4.0.1
    l: http://hl7.org/fhir/StructureDefinition/SimpleQuantity
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: rim
  map:
    v: not supported

id:
  v: Dosage.maxDosePerLifetime
path:
  v: Dosage.maxDosePerLifetime
short:
  v: Upper limit on medication per lifetime of the patient
definition:
  v: Upper limit on medication per lifetime of the patient.
requirements:
  v: The maximum total quantity of a therapeutic substance that may be administered per lifetime of the subject.
min:
  v: 0
max:
  v: 1
base:
  path:
    v: Dosage.maxDosePerLifetime
  min:
    v: 0
  max:
    v: 1
type:
  code:
    v: Quantity
    l: Quantity
  profile:
    v: http://hl7.org/fhir/StructureDefinition/SimpleQuantity|4.0.1
    l: http://hl7.org/fhir/StructureDefinition/SimpleQuantity
constraint:
  key:
    v: ele-1
  severity:
    v: error
  human:
    v: All FHIR elements must have a @value or children
  expression:
    v: hasValue() or (children().count() > id.count())
  xpath:
    v: @value|f:*|h:div
  source:
    v: http://hl7.org/fhir/StructureDefinition/Element
    l: Element
is modifier:
  v: false
is summary:
  v: true
mapping:
  identity:
    v: rim
  map:
    v: not supported

element:
  id:
    v: Dosage
  path:
    v: Dosage
  short:
    v: CH Core Dosage
element:
  id:
    v: Dosage.route
  path:
    v: Dosage.route
  binding:
    strength:
      v: preferred
    value set:
      v: http://fhir.ch/ig/ch-term/ValueSet/edqm-routeofadministration
      l: edqm-routeofadministration
element:
  id:
    v: Dosage.method
  path:
    v: Dosage.method
  binding:
    strength:
      v: preferred
    value set:
      v: http://fhir.ch/ig/ch-term/ValueSet/edqm-administrationmethod
      l: edqm-administrationmethod
element:
  id:
    v: Dosage.doseAndRate.dose[x]
  path:
    v: Dosage.doseAndRate.dose[x]
  type:
    code:
      v: Range
      l: Range
    profile:
      v: http://fhir.ch/ig/ch-core/StructureDefinition/ch-core-range-with-emed-units
      l: ch-core-range-with-emed-units
  type:
    code:
      v: Quantity
      l: Quantity
    profile:
      v: http://fhir.ch/ig/ch-core/StructureDefinition/ch-core-quantity-with-emed-units
      l: ch-core-quantity-with-emed-units