<status value="active" /> <publisher value="Nictiz" /> <contact> <name value="Nictiz" /> <telecom> <system value="email" /> <value value="geboortezorg@nictiz.nl" /> <use value="work" /> </telecom> </contact> <description value="A Period profile defining a time interval between two moments in time. Interval can be defined by a start time and end time, start time and duration or duration and end time. For intervals in the future, only duration or start date may be known and one or more of the other elements may be unknown. To specify duration, use the time interval duration extension." /> <copyright value="CC0" /> <fhirVersion value="3.0.2" /> <kind value="complex-type" /> <abstract value="false" /> <type value="Period" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Period" /> <derivation value="constraint" /> <snapshot> <element id="Period"> <path value="Period" /> <short value="Time range defined by start and end date/time" /> <definition value="A time period defined by a start and end date and optionally time." /> <comment value="A time interval indicates the time between two moments in time. Interval can be defined by a start time and end time, start time and duration or duration and end time. For intervals in the future, only duration or start date may be known and one or more of the other elements may be unknown. To specify duration, use the time interval duration extension." /> <min value="0" /> <max value="*" /> <base> <path value="Element" /> <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() | (children().count() > id.count())" /> <xpath value="@value|f:*|h:div" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <constraint> <key value="per-1" /> <severity value="error" /> <human value="If present, start SHALL have a lower value than end" /> <expression value="start.empty() or end.empty() or (start <= end)" /> <xpath value="not(exists(f:start)) or not(exists(f:end)) or (f:start/@value <= f:end/@value)" /> <source value="http://hl7.org/fhir/StructureDefinition/Period" /> </constraint> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="v2" /> <map value="DR" /> </mapping> <mapping> <identity value="rim" /> <map value="IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]" /> </mapping> </element> <element id="Period.id"> <path value="Period.id" /> <representation value="xmlAttr" /> <short value="xml:id (or equivalent in JSON)" /> <definition value="unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." /> <comment value="Note that FHIR strings may not exceed 1MB in size" /> <min value="0" /> <max value="1" /> <base> <path value="Element.id" /> <min value="0" /> <max value="1" /> </base> <type> <code value="string" /> </type> <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() | (children().count() > id.count())" /> <xpath value="@value|f:*|h:div" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> </element> <element id="Period.extension"> <path value="Period.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. In order 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 is allowed to 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> <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() | (children().count() > id.count())" /> <xpath value="@value|f:*|h:div" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </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" /> </constraint> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="rim" /> <map value="N/A" /> </mapping> </element> <element id="Period.extension:duration"> <path value="Period.extension" /> <sliceName value="duration" /> <short value="Optional Extensions Element" /> <definition value="Optional Extension Element - found in all resources." /> <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="1" /> <base> <path value="Element.extension" /> <min value="0" /> <max value="*" /> </base> <type> <code value="Extension" /> <profile value="http://nictiz.nl/fhir/StructureDefinition/bc-timeinterval-duration" /> </type> <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() | (children().count() > id.count())" /> <xpath value="@value|f:*|h:div" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </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" /> </constraint> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="rim" /> <map value="N/A" /> </mapping> </element> <element id="Period.start"> <path value="Period.start" /> <short value="Starting time with inclusive boundary" /> <definition value="The start of the period. The boundary is inclusive." /> <comment value="If the low element is missing, the meaning is that the low boundary is not known." /> <min value="0" /> <max value="1" /> <base> <path value="Period.start" /> <min value="0" /> <max value="1" /> </base> <type> <code value="dateTime" /> </type> <condition value="ele-1" /> <condition value="per-1" /> <constraint> <key value="ele-1" /> <severity value="error" /> <human value="All FHIR elements must have a @value or children" /> <expression value="hasValue() | (children().count() > id.count())" /> <xpath value="@value|f:*|h:div" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <isSummary value="true" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="v2" /> <map value="DR.1" /> </mapping> <mapping> <identity value="rim" /> <map value="./low" /> </mapping> </element> <element id="Period.end"> <path value="Period.end" /> <short value="End time with inclusive boundary, if not ongoing" /> <definition value="The end of the period. If the end of the period is missing, it means that the period is ongoing. The start may be in the past, and the end date in the future, which means that period is expected/planned to end at that time." /> <comment value="The high value includes any matching date/time. i.e. 2012-02-03T10:00:00 is in a period that has a end value of 2012-02-03." /> <min value="0" /> <max value="1" /> <base> <path value="Period.end" /> <min value="0" /> <max value="1" /> </base> <type> <code value="dateTime" /> </type> <meaningWhenMissing value="If the end of the period is missing, it means that the period is ongoing" /> <condition value="ele-1" /> <condition value="per-1" /> <constraint> <key value="ele-1" /> <severity value="error" /> <human value="All FHIR elements must have a @value or children" /> <expression value="hasValue() | (children().count() > id.count())" /> <xpath value="@value|f:*|h:div" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <isSummary value="true" /> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> <mapping> <identity value="v2" /> <map value="DR.2" /> </mapping> <mapping> <identity value="rim" /> <map value="./high" /> </mapping> </element> </snapshot> <differential> <element id="Period"> <path value="Period" /> <comment value="A time interval indicates the time between two moments in time. Interval can be defined by a start time and end time, start time and duration or duration and end time. For intervals in the future, only duration or start date may be known and one or more of the other elements may be unknown. To specify duration, use the time interval duration extension." /> </element> <element id="Period.extension"> <path value="Period.extension" /> <slicing> <discriminator> <type value="value" /> <path value="url" /> </discriminator> <rules value="open" /> </slicing> <min value="0" /> </element> <element id="Period.extension:duration"> <path value="Period.extension" /> <sliceName value="duration" /> <min value="0" /> <max value="1" /> <type> <code value="Extension" /> <profile value="http://nictiz.nl/fhir/StructureDefinition/bc-timeinterval-duration" /> </type> </element> </differential> </StructureDefinition>