CH Core (R4), published by HL7 Switzerland. This guide is not an authorized publication; it is the continuous build for version 7.0.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7ch/ch-core/ and changes regularly. See the Directory of published versions
| Official URL: http://fhir.ch/ig/ch-core/StructureDefinition/ch-core-dosage | Version: 7.0.0-ballot | ||||
| Active as of 2026-10-21 | Computable Name: CHCoreDosage | ||||
Copyright/Legal: CC0-1.0 |
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Dosage for medication use cases
Usages:
You can also check for usages in the FHIR IG Statistics
Description Differentials, Snapshots, and other representations.
| Name | Flags | Card. | Type | Description & Constraints Filter: ![]() |
|---|---|---|---|---|
![]() |
0..* | Dosage | CH Core Dosage | |
![]() ![]() |
0..* | Extension | Extensions that cannot be ignored even if unrecognized | |
![]() ![]() |
0..1 | CodeableConcept | How drug should enter body Binding: EDQM - RouteOfAdministration (preferred) | |
![]() ![]() |
0..1 | CodeableConcept | Technique for administering medication Binding: EDQM - Administration Method (preferred) | |
Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source |
| Dosage.route | Base | preferred | EDQM - RouteOfAdministration | 📦3.4.0 | CH Term v3.4 |
| Dosage.method | Base | preferred | EDQM - Administration Method | 📦3.4.0 | CH Term v3.4 |
| Id | Grade | Path(s) | Description | Expression |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children |
hasValue() or (children().count() > id.count())
|
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both |
extension.exists() != value.exists()
|
This structure is derived from Dosage
| Name | Flags | Card. | Type | Description & Constraints Filter: ![]() |
|---|---|---|---|---|
![]() |
0..* | Dosage | CH Core Dosage | |
![]() ![]() |
0..1 | CodeableConcept | How drug should enter body Binding: EDQM - RouteOfAdministration (preferred) | |
![]() ![]() |
0..1 | CodeableConcept | Technique for administering medication Binding: EDQM - Administration Method (preferred) | |
![]() ![]() |
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![]() ![]() ![]() |
0..1 | Amount of medication per dose | ||
![]() ![]() ![]() ![]() |
Range(CHCoreRangeWithEmedUnits) | |||
![]() ![]() ![]() ![]() |
Quantity(CHCoreQuantityWithEmedUnits) | |||
Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source |
| Dosage.route | Base | preferred | EDQM - RouteOfAdministration | 📦3.4.0 | CH Term v3.4 |
| Dosage.method | Base | preferred | EDQM - Administration Method | 📦3.4.0 | CH Term v3.4 |
| Name | Flags | Card. | Type | Description & Constraints Filter: ![]() |
|---|---|---|---|---|
![]() |
0..* | Dosage | CH Core Dosage | |
![]() ![]() |
0..1 | string | Unique id for inter-element referencing | |
![]() ![]() |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
![]() ![]() |
0..* | Extension | Extensions that cannot be ignored even if unrecognized | |
![]() ![]() |
0..1 | integer | The order of the dosage instructions | |
![]() ![]() |
0..1 | string | Free text dosage instructions e.g. SIG | |
![]() ![]() |
0..* | CodeableConcept | Supplemental instruction or warnings to the patient - e.g. "with meals", "may cause drowsiness" Binding: SNOMEDCTAdditionalDosageInstructions (example): A coded concept identifying additional instructions such as "take with water" or "avoid operating heavy machinery". | |
![]() ![]() |
0..1 | string | Patient or consumer oriented instructions | |
![]() ![]() |
0..1 | Timing | When medication should be administered | |
![]() ![]() |
0..1 | Take "as needed" (for x) Binding: SNOMEDCTMedicationAsNeededReasonCodes (example): A coded concept identifying the precondition that should be met or evaluated prior to consuming or administering a medication dose. For example "pain", "30 minutes prior to sexual intercourse", "on flare-up" etc. | ||
![]() ![]() ![]() |
boolean | |||
![]() ![]() ![]() |
CodeableConcept | |||
![]() ![]() |
0..1 | CodeableConcept | Body site to administer to Binding: SNOMEDCTAnatomicalStructureForAdministrationSiteCodes (example): A coded concept describing the site location the medicine enters into or onto the body. | |
![]() ![]() |
0..1 | CodeableConcept | How drug should enter body Binding: EDQM - RouteOfAdministration (preferred) | |
![]() ![]() |
0..1 | CodeableConcept | Technique for administering medication Binding: EDQM - Administration Method (preferred) | |
![]() ![]() |
0..* | Element | Amount of medication administered | |
![]() ![]() ![]() |
0..1 | string | Unique id for inter-element referencing | |
![]() ![]() ![]() |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
![]() ![]() ![]() |
0..1 | CodeableConcept | The kind of dose or rate specified Binding: DoseAndRateType (example): The kind of dose or rate specified. | |
![]() ![]() ![]() |
0..1 | Amount of medication per dose | ||
![]() ![]() ![]() ![]() |
Range(CHCoreRangeWithEmedUnits) | |||
![]() ![]() ![]() ![]() |
Quantity(CHCoreQuantityWithEmedUnits) | |||
![]() ![]() ![]() |
0..1 | Amount of medication per unit of time | ||
![]() ![]() ![]() ![]() |
Ratio | |||
![]() ![]() ![]() ![]() |
Range | |||
![]() ![]() ![]() ![]() |
Quantity(SimpleQuantity) | |||
![]() ![]() |
0..1 | Ratio | Upper limit on medication per unit of time | |
![]() ![]() |
C | 0..1 | SimpleQuantity(4.0.1) | Upper limit on medication per administration Constraints: sqty-1 |
![]() ![]() |
C | 0..1 | SimpleQuantity(4.0.1) | Upper limit on medication per lifetime of the patient Constraints: sqty-1 |
Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source |
| Dosage.additionalInstruction | Base | example | SNOMED CT Additional Dosage Instructions | 📍4.0.1 | FHIR Std. |
| Dosage.asNeeded[x] | Base | example | SNOMED CT Medication As Needed Reason Codes | 📍4.0.1 | FHIR Std. |
| Dosage.site | Base | example | SNOMED CT Anatomical Structure for Administration Site Codes | 📍4.0.1 | FHIR Std. |
| Dosage.route | Base | preferred | EDQM - RouteOfAdministration | 📦3.4.0 | CH Term v3.4 |
| Dosage.method | Base | preferred | EDQM - Administration Method | 📦3.4.0 | CH Term v3.4 |
| Dosage.doseAndRate.type | Base | example | DoseAndRateType | 📍4.0.1 | FHIR Std. |
| Id | Grade | Path(s) | Description | Expression |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children |
hasValue() or (children().count() > id.count())
|
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both |
extension.exists() != value.exists()
|
| sqty-1 | error | Dosage.maxDosePerAdministration, Dosage.maxDosePerLifetime | The comparator is not used on a SimpleQuantity |
comparator.empty()
|
This structure is derived from Dosage
Key Elements View
| Name | Flags | Card. | Type | Description & Constraints Filter: ![]() |
|---|---|---|---|---|
![]() |
0..* | Dosage | CH Core Dosage | |
![]() ![]() |
0..* | Extension | Extensions that cannot be ignored even if unrecognized | |
![]() ![]() |
0..1 | CodeableConcept | How drug should enter body Binding: EDQM - RouteOfAdministration (preferred) | |
![]() ![]() |
0..1 | CodeableConcept | Technique for administering medication Binding: EDQM - Administration Method (preferred) | |
Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source |
| Dosage.route | Base | preferred | EDQM - RouteOfAdministration | 📦3.4.0 | CH Term v3.4 |
| Dosage.method | Base | preferred | EDQM - Administration Method | 📦3.4.0 | CH Term v3.4 |
| Id | Grade | Path(s) | Description | Expression |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children |
hasValue() or (children().count() > id.count())
|
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both |
extension.exists() != value.exists()
|
Differential View
This structure is derived from Dosage
| Name | Flags | Card. | Type | Description & Constraints Filter: ![]() |
|---|---|---|---|---|
![]() |
0..* | Dosage | CH Core Dosage | |
![]() ![]() |
0..1 | CodeableConcept | How drug should enter body Binding: EDQM - RouteOfAdministration (preferred) | |
![]() ![]() |
0..1 | CodeableConcept | Technique for administering medication Binding: EDQM - Administration Method (preferred) | |
![]() ![]() |
||||
![]() ![]() ![]() |
0..1 | Amount of medication per dose | ||
![]() ![]() ![]() ![]() |
Range(CHCoreRangeWithEmedUnits) | |||
![]() ![]() ![]() ![]() |
Quantity(CHCoreQuantityWithEmedUnits) | |||
Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source |
| Dosage.route | Base | preferred | EDQM - RouteOfAdministration | 📦3.4.0 | CH Term v3.4 |
| Dosage.method | Base | preferred | EDQM - Administration Method | 📦3.4.0 | CH Term v3.4 |
Snapshot ViewView
| Name | Flags | Card. | Type | Description & Constraints Filter: ![]() |
|---|---|---|---|---|
![]() |
0..* | Dosage | CH Core Dosage | |
![]() ![]() |
0..1 | string | Unique id for inter-element referencing | |
![]() ![]() |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
![]() ![]() |
0..* | Extension | Extensions that cannot be ignored even if unrecognized | |
![]() ![]() |
0..1 | integer | The order of the dosage instructions | |
![]() ![]() |
0..1 | string | Free text dosage instructions e.g. SIG | |
![]() ![]() |
0..* | CodeableConcept | Supplemental instruction or warnings to the patient - e.g. "with meals", "may cause drowsiness" Binding: SNOMEDCTAdditionalDosageInstructions (example): A coded concept identifying additional instructions such as "take with water" or "avoid operating heavy machinery". | |
![]() ![]() |
0..1 | string | Patient or consumer oriented instructions | |
![]() ![]() |
0..1 | Timing | When medication should be administered | |
![]() ![]() |
0..1 | Take "as needed" (for x) Binding: SNOMEDCTMedicationAsNeededReasonCodes (example): A coded concept identifying the precondition that should be met or evaluated prior to consuming or administering a medication dose. For example "pain", "30 minutes prior to sexual intercourse", "on flare-up" etc. | ||
![]() ![]() ![]() |
boolean | |||
![]() ![]() ![]() |
CodeableConcept | |||
![]() ![]() |
0..1 | CodeableConcept | Body site to administer to Binding: SNOMEDCTAnatomicalStructureForAdministrationSiteCodes (example): A coded concept describing the site location the medicine enters into or onto the body. | |
![]() ![]() |
0..1 | CodeableConcept | How drug should enter body Binding: EDQM - RouteOfAdministration (preferred) | |
![]() ![]() |
0..1 | CodeableConcept | Technique for administering medication Binding: EDQM - Administration Method (preferred) | |
![]() ![]() |
0..* | Element | Amount of medication administered | |
![]() ![]() ![]() |
0..1 | string | Unique id for inter-element referencing | |
![]() ![]() ![]() |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
![]() ![]() ![]() |
0..1 | CodeableConcept | The kind of dose or rate specified Binding: DoseAndRateType (example): The kind of dose or rate specified. | |
![]() ![]() ![]() |
0..1 | Amount of medication per dose | ||
![]() ![]() ![]() ![]() |
Range(CHCoreRangeWithEmedUnits) | |||
![]() ![]() ![]() ![]() |
Quantity(CHCoreQuantityWithEmedUnits) | |||
![]() ![]() ![]() |
0..1 | Amount of medication per unit of time | ||
![]() ![]() ![]() ![]() |
Ratio | |||
![]() ![]() ![]() ![]() |
Range | |||
![]() ![]() ![]() ![]() |
Quantity(SimpleQuantity) | |||
![]() ![]() |
0..1 | Ratio | Upper limit on medication per unit of time | |
![]() ![]() |
C | 0..1 | SimpleQuantity(4.0.1) | Upper limit on medication per administration Constraints: sqty-1 |
![]() ![]() |
C | 0..1 | SimpleQuantity(4.0.1) | Upper limit on medication per lifetime of the patient Constraints: sqty-1 |
Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source |
| Dosage.additionalInstruction | Base | example | SNOMED CT Additional Dosage Instructions | 📍4.0.1 | FHIR Std. |
| Dosage.asNeeded[x] | Base | example | SNOMED CT Medication As Needed Reason Codes | 📍4.0.1 | FHIR Std. |
| Dosage.site | Base | example | SNOMED CT Anatomical Structure for Administration Site Codes | 📍4.0.1 | FHIR Std. |
| Dosage.route | Base | preferred | EDQM - RouteOfAdministration | 📦3.4.0 | CH Term v3.4 |
| Dosage.method | Base | preferred | EDQM - Administration Method | 📦3.4.0 | CH Term v3.4 |
| Dosage.doseAndRate.type | Base | example | DoseAndRateType | 📍4.0.1 | FHIR Std. |
| Id | Grade | Path(s) | Description | Expression |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children |
hasValue() or (children().count() > id.count())
|
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both |
extension.exists() != value.exists()
|
| sqty-1 | error | Dosage.maxDosePerAdministration, Dosage.maxDosePerLifetime | The comparator is not used on a SimpleQuantity |
comparator.empty()
|
This structure is derived from Dosage
Other representations of profile: CSV, Excel, Schematron