<status value="active" /> <date value="2026-03-23" /> <publisher value="Israel Core Team" /> <contact> <telecom> <system value="email" /> <value value="tal.primak@moh.gov.il" /> <use value="work" /> </telecom> </contact> <description value="Adds several Israel-specific extensions and constraints to the Dosage datatype" /> <jurisdiction> <coding> <system value="urn:iso:std:iso:3166" /> <code value="IL" /> </coding> </jurisdiction> <copyright value="Israeli Ministry of Health" /> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <type value="Dosage" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Dosage" /> <derivation value="constraint" /> <differential> <element id="Dosage"> <path value="Dosage" /> <constraint> <key value="il-core-dosage-ext" /> <severity value="error" /> <human value="If extension ext-sub-dosage-step is used, it must appear at least once" /> <expression value="extension.where(url = 'http://fhir.health.gov.il/StructureDefinition/ext-sub-dosage-step').count() = 0 or extension.where(url = 'http://fhir.health.gov.il/StructureDefinition/ext-sub-dosage-step').count() >= 1" /> <source value="http://fhir.health.gov.il/StructureDefinition/il-core-dosage" /> </constraint> <constraint> <key value="il-dosage-no-parent-dose-when-substeps" /> <severity value="error" /> <human value="If ext-sub-dosage-step extension is present on Dosage, doseAndRate SHALL NOT be present on the parent Dosage." /> <expression value="extension.where(url = 'http://fhir.health.gov.il/StructureDefinition/ext-sub-dosage-step').exists() implies doseAndRate.empty()" /> <source value="http://fhir.health.gov.il/StructureDefinition/il-core-dosage" /> </constraint> <constraint> <key value="il-dosage-no-parent-asneeded-when-substeps-have" /> <severity value="error" /> <human value="If any sub-dosage step has asNeeded, the parent Dosage SHALL NOT define asNeeded." /> <expression value="extension.where(url = 'http://fhir.health.gov.il/StructureDefinition/ext-sub-dosage-step').valueDosage.asNeeded.exists() implies asNeeded.empty()" /> <source value="http://fhir.health.gov.il/StructureDefinition/il-core-dosage" /> </constraint> </element> <element id="Dosage.text"> <path value="Dosage.text" /> <mustSupport value="true" /> </element> <element id="Dosage.additionalInstruction"> <path value="Dosage.additionalInstruction" /> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="AdditionalInstruction" /> </extension> <strength value="extensible" /> <description value="A coded concept identifying additional instructions such as "take with water" or "avoid operating heavy machinery"." /> <valueSet value="http://hl7.org/fhir/ValueSet/additional-instruction-codes" /> </binding> </element> <element id="Dosage.asNeeded[x]"> <path value="Dosage.asNeeded[x]" /> <slicing> <discriminator> <type value="type" /> <path value="$this" /> </discriminator> <ordered value="false" /> <rules value="open" /> </slicing> </element> <element id="Dosage.asNeeded[x]:asNeededCodeableConcept"> <path value="Dosage.asNeeded[x]" /> <sliceName value="asNeededCodeableConcept" /> <min value="0" /> <max value="1" /> <type> <code value="CodeableConcept" /> </type> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="MedicationAsNeededReason" /> </extension> <strength value="extensible" /> <description value="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." /> <valueSet value="http://hl7.org/fhir/ValueSet/medication-as-needed-reason" /> </binding> </element> <element id="Dosage.site"> <path value="Dosage.site" /> <binding> <strength value="extensible" /> <valueSet value="http://hl7.org/fhir/ValueSet/body-site" /> </binding> </element> <element id="Dosage.route"> <path value="Dosage.route" /> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="RouteOfAdministration" /> </extension> <strength value="extensible" /> <description value="A coded concept describing the route or physiological path of administration of a therapeutic agent into or onto the body of a subject." /> <valueSet value="http://hl7.org/fhir/ValueSet/route-codes" /> </binding> </element> <element id="Dosage.method"> <path value="Dosage.method" /> <binding> <strength value="preferred" /> <valueSet value="http://fhir.health.gov.il/ValueSet/il-core-medication-administration-code" /> </binding> </element> <element id="Dosage.doseAndRate.type"> <path value="Dosage.doseAndRate.type" /> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="DoseAndRateType" /> </extension> <strength value="extensible" /> <description value="The kind of dose or rate specified." /> <valueSet value="http://hl7.org/fhir/ValueSet/dose-rate-type" /> </binding> </element> <element id="Dosage.doseAndRate.dose[x]"> <path value="Dosage.doseAndRate.dose[x]" /> <slicing> <discriminator> <type value="type" /> <path value="$this" /> </discriminator> <ordered value="false" /> <rules value="open" /> </slicing> </element> <element id="Dosage.doseAndRate.dose[x]:doseQuantity"> <path value="Dosage.doseAndRate.dose[x]" /> <sliceName value="doseQuantity" /> <min value="0" /> <max value="1" /> <type> <code value="Quantity" /> <profile value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity" /> </type> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet"> <valueCanonical value="http://fhir.health.gov.il/ValueSet/il-core-units-of-measure" /> </extension> <strength value="extensible" /> <valueSet value="http://fhir.health.gov.il/ValueSet/il-core-common-units-of-measure" /> </binding> </element> <element id="Dosage.doseAndRate.dose[x]:doseRange"> <path value="Dosage.doseAndRate.dose[x]" /> <sliceName value="doseRange" /> <min value="0" /> <max value="1" /> <type> <code value="Range" /> </type> </element> <element id="Dosage.doseAndRate.dose[x]:doseRange.low.code"> <path value="Dosage.doseAndRate.dose[x].low.code" /> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet"> <valueCanonical value="http://fhir.health.gov.il/ValueSet/il-core-units-of-measure" /> </extension> <strength value="extensible" /> <valueSet value="http://fhir.health.gov.il/ValueSet/il-core-common-units-of-measure" /> </binding> </element> <element id="Dosage.doseAndRate.dose[x]:doseRange.high.code"> <path value="Dosage.doseAndRate.dose[x].high.code" /> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet"> <valueCanonical value="http://fhir.health.gov.il/ValueSet/il-core-units-of-measure" /> </extension> <strength value="extensible" /> <valueSet value="http://fhir.health.gov.il/ValueSet/il-core-common-units-of-measure" /> </binding> </element> <element id="Dosage.maxDosePerAdministration"> <path value="Dosage.maxDosePerAdministration" /> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet"> <valueCanonical value="http://fhir.health.gov.il/ValueSet/il-core-units-of-measure" /> </extension> <strength value="extensible" /> <valueSet value="http://fhir.health.gov.il/ValueSet/il-core-common-units-of-measure" /> </binding> </element> <element id="Dosage.maxDosePerLifetime"> <path value="Dosage.maxDosePerLifetime" /> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet"> <valueCanonical value="http://fhir.health.gov.il/ValueSet/il-core-units-of-measure" /> </extension> <strength value="extensible" /> <valueSet value="http://fhir.health.gov.il/ValueSet/il-core-common-units-of-measure" /> </binding> </element> </differential> </StructureDefinition>