<status value="active"/> <experimental value="false"/> <date value="2026-03-17T21:02:03.8104715+00:00"/> <publisher value="FHIR Infrastructure"/> <contact> <name value="FHIR Infrastructure"/> <telecom> <system value="url"/> <value value="http://www.hl7.org/Special/committees/fiwg"/> </telecom> </contact> <description value="R5: `MedicationStatement.effective[x]` additional types (Timing)"/> <jurisdiction> <coding> <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> <code value="001"/> <display value="World"/> </coding> </jurisdiction> <purpose value="This extension is part of the cross-version definitions generated to enable use of the element `MedicationStatement.effective[x]` as defined in FHIR R5 in FHIR R4. The source element is defined as: `MedicationStatement.effective[x]` 0..1 `dateTime, Period, Timing` Across FHIR versions, the element set has been mapped as: * R5: `MedicationStatement.effective[x]` 0..1 `dateTime, Period, Timing` * R4B: `MedicationStatement.effective[x]` 0..1 `dateTime, Period` * R4: `MedicationStatement.effective[x]` 0..1 `dateTime, Period` Following are the generation technical comments: Element `MedicationStatement.effective[x]` is mapped to FHIR R4 element `MedicationStatement.effective[x]` as `SourceIsBroaderThanTarget`. The mappings for `MedicationStatement.effective[x]` do not cover the following types: Timing. The target context `MedicationStatement.effective[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `MedicationStatement`."/> <fhirVersion value="4.0.1"/> <mapping> <identity value="rim"/> <uri value="http://hl7.org/v3"/> <name value="RIM Mapping"/> </mapping> <kind value="complex-type"/> <abstract value="false"/> <context> <type value="element"/> <expression value="MedicationStatement"/> </context> <type value="Extension"/> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension|4.0.1"/> <derivation value="constraint"/> <snapshot> <extension url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version"> <valueString value="4.0.1"/> </extension> <element id="Extension"> <path value="Extension"/> <short value="R5: effective additional types"/> <definition value="R5: `MedicationStatement.effective[x]` additional types (Timing)"/> <comment value="Element `MedicationStatement.effective[x]` is mapped to FHIR R4 element `MedicationStatement.effective[x]` as `SourceIsBroaderThanTarget`. The mappings for `MedicationStatement.effective[x]` do not cover the following types: Timing. The target context `MedicationStatement.effective[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `MedicationStatement`. This attribute reflects the period over which the patient consumed the medication and is expected to be populated on the majority of Medication Statements. If the medication is still being taken and is expected to continue indefinitely at the time the usage is recorded, the "end" date will be omitted. If the end date is known, then it is included as the "end date". The date/time attribute supports a variety of dates - year, year/month and exact date. If something more than this is required, this should be conveyed as text."/> <min value="0"/> <max value="1"/> <base> <path value="Extension"/> <min value="0"/> <max value="*"/> </base> <condition value="ele-1"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <xpath value="@value|f:*|h:div"/> <source value="http://hl7.org/fhir/StructureDefinition/Element|4.0.1"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension|4.0.1"/> </constraint> <isModifier value="false"/> </element> <element id="Extension.id"> <path value="Extension.id"/> <representation value="xmlAttr"/> <short value="Unique id for inter-element referencing"/> <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/> <min value="0"/> <max value="1"/> <base> <path value="Element.id"/> <min value="0"/> <max value="1"/> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="string"/> </extension> <code value="http://hl7.org/fhirpath/System.String"/> </type> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="Extension.extension"> <path value="Extension.extension"/> <slicing> <discriminator> <type value="value"/> <path value="url"/> </discriminator> <description value="Extensions are always sliced by (at least) url"/> <rules value="open"/> </slicing> <short value="Additional content defined by implementations"/> <definition value="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 value="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 value="extensions"/> <alias value="user content"/> <min value="0"/> <max value="*"/> <base> <path value="Element.extension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <xpath value="@value|f:*|h:div"/> <source value="http://hl7.org/fhir/StructureDefinition/Element|4.0.1"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension|4.0.1"/> </constraint> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="Extension.url"> <path value="Extension.url"/> <representation value="xmlAttr"/> <short value="identifies the meaning of the extension"/> <definition value="Source of the definition for the extension code - a logical name or a URL."/> <comment value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension."/> <min value="1"/> <max value="1"/> <base> <path value="Extension.url"/> <min value="1"/> <max value="1"/> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="uri"/> </extension> <code value="http://hl7.org/fhirpath/System.String"/> </type> <fixedUri value="http://hl7.org/fhir/5.0/StructureDefinition/extension-MedicationStatement.effective"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]"/> <short value="The date/time or interval when the medication is/was/will be taken"/> <definition value="The interval of time during which it is being asserted that the patient is/was/will be taking the medication (or was not taking, when the MedicationStatement.adherence element is Not Taking)."/> <comment value="This attribute reflects the period over which the patient consumed the medication and is expected to be populated on the majority of Medication Statements. If the medication is still being taken and is expected to continue indefinitely at the time the usage is recorded, the "end" date will be omitted. If the end date is known, then it is included as the "end date". The date/time attribute supports a variety of dates - year, year/month and exact date. If something more than this is required, this should be conveyed as text."/> <min value="0"/> <max value="1"/> <base> <path value="Extension.value[x]"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Timing"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <xpath value="@value|f:*|h:div"/> <source value="http://hl7.org/fhir/StructureDefinition/Element|4.0.1"/> </constraint> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> </snapshot> <differential> <element id="Extension"> <path value="Extension"/> <short value="R5: effective additional types"/> <definition value="R5: `MedicationStatement.effective[x]` additional types (Timing)"/> <comment value="Element `MedicationStatement.effective[x]` is mapped to FHIR R4 element `MedicationStatement.effective[x]` as `SourceIsBroaderThanTarget`. The mappings for `MedicationStatement.effective[x]` do not cover the following types: Timing. The target context `MedicationStatement.effective[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `MedicationStatement`. This attribute reflects the period over which the patient consumed the medication and is expected to be populated on the majority of Medication Statements. If the medication is still being taken and is expected to continue indefinitely at the time the usage is recorded, the "end" date will be omitted. If the end date is known, then it is included as the "end date". The date/time attribute supports a variety of dates - year, year/month and exact date. If something more than this is required, this should be conveyed as text."/> <min value="0"/> <max value="1"/> <base> <path value="Extension"/> <min value="0"/> <max value="*"/> </base> <isModifier value="false"/> </element> <element id="Extension.url"> <path value="Extension.url"/> <min value="1"/> <max value="1"/> <base> <path value="Extension.url"/> <min value="1"/> <max value="1"/> </base> <fixedUri value="http://hl7.org/fhir/5.0/StructureDefinition/extension-MedicationStatement.effective"/> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]"/> <short value="The date/time or interval when the medication is/was/will be taken"/> <definition value="The interval of time during which it is being asserted that the patient is/was/will be taking the medication (or was not taking, when the MedicationStatement.adherence element is Not Taking)."/> <comment value="This attribute reflects the period over which the patient consumed the medication and is expected to be populated on the majority of Medication Statements. If the medication is still being taken and is expected to continue indefinitely at the time the usage is recorded, the "end" date will be omitted. If the end date is known, then it is included as the "end date". The date/time attribute supports a variety of dates - year, year/month and exact date. If something more than this is required, this should be conveyed as text."/> <min value="0"/> <max value="1"/> <base> <path value="Extension.value[x]"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Timing"/> </type> </element> </differential> </StructureDefinition>

Generated Narrative: StructureDefinition ext-R5-MedicationStatement.effective

Name	Card.	Type	Description & Constraints
Extension	0..1	Extension(4.0.1)	R5: effective additional types
url	1..1	uri	"http://hl7.org/fhir/5.0/StructureDefinition/extension-MedicationStatement.effective"
value[x]	0..1	Timing	The date/time or interval when the medication is/was/will be taken
Documentation for this format