<status value="draft"/><date value="2013-12-05"/><publisher value="Health Level Seven International (FHIR Infrastructure)"/><contact><telecom><system value="url"/><value value="http://www.hl7.org/Special/committees/fiwg"/></telecom></contact><description value="Specifies that a date is relative to some event. The event happens [Duration] after [Event]."/><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="date"/></context><context><type value="element"/><expression value="dateTime"/></context><type value="Extension"/><baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension"/><derivation value="constraint"/><snapshot><element id="Extension"><path value="Extension"/><short value="Relative Date Criteria"/><definition value="Specifies that a date is relative to some event. The event happens [Duration] after [Event]."/><comment value="This extension is used when a precise date is not known, but rather, the date will be relative to some future event (e.g. Do this 2 weeks after an operation)."/><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"/></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><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"/></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><isModifier value="false"/><isSummary value="false"/><mapping><identity value="rim"/><map value="n/a"/></mapping></element><element id="Extension.extension:event"><path value="Extension.extension"/><sliceName value="event"/><short value="Event that the date is relative to"/><definition value="The event that the date(time) is relative to."/><comment value="This can be a reference to a particular event, or a kind of event (usually where the kind would not happen very frequently)."/><min value="1"/><max value="1"/><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"/></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><isModifier value="false"/><isSummary value="false"/></element><element id="Extension.extension:event.id"><path value="Extension.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:event.extension"><path value="Extension.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="Extension"/><definition value="An Extension"/><min value="0"/><max value="0"/><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"/></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><isModifier value="false"/><isSummary value="false"/></element><element id="Extension.extension:event.url"><path value="Extension.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><code value="uri"/></type><fixedUri value="event"/><isModifier value="false"/><isSummary value="false"/><mapping><identity value="rim"/><map value="N/A"/></mapping></element><element id="Extension.extension:event.value[x]"><path value="Extension.extension.value[x]"/><short value="Value of extension"/><definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/extensibility.html) for a list)."/><min value="1"/><max value="1"/><base><path value="Extension.value[x]"/><min value="0"/><max value="1"/></base><type><code value="Reference"/><targetProfile value="http://hl7.org/fhir/StructureDefinition/Resource"/></type><type><code value="CodeableConcept"/></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"/></constraint><isModifier value="false"/><isSummary value="false"/><mapping><identity value="rim"/><map value="N/A"/></mapping></element><element id="Extension.extension:relationship"><path value="Extension.extension"/><sliceName value="relationship"/><short value="before-start | before | before-end | concurrent-with-start | concurrent | concurrent-with-end | after-start | after | after-end"/><definition value="Defines the relationship between the event and the date."/><min value="1"/><max value="1"/><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"/></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><isModifier value="false"/><isSummary value="false"/></element><element id="Extension.extension:relationship.id"><path value="Extension.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:relationship.extension"><path value="Extension.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="Extension"/><definition value="An Extension"/><min value="0"/><max value="0"/><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"/></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><isModifier value="false"/><isSummary value="false"/></element><element id="Extension.extension:relationship.url"><path value="Extension.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><code value="uri"/></type><fixedUri value="relationship"/><isModifier value="false"/><isSummary value="false"/><mapping><identity value="rim"/><map value="N/A"/></mapping></element><element id="Extension.extension:relationship.value[x]"><path value="Extension.extension.value[x]"/><short value="Value of extension"/><definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/extensibility.html) for a list)."/><min value="1"/><max value="1"/><base><path value="Extension.value[x]"/><min value="0"/><max value="1"/></base><type><code value="code"/></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"/></constraint><isModifier value="false"/><isSummary value="false"/><binding><extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"><valueString value="ActionRelationshipType"/></extension><strength value="required"/><description value="Defines the types of relationships between actions."/><valueSet value="http://hl7.org/fhir/ValueSet/action-relationship-type|4.0.1"/></binding><mapping><identity value="rim"/><map value="N/A"/></mapping></element><element id="Extension.extension:offset"><path value="Extension.extension"/><sliceName value="offset"/><short value="Duration after the event"/><definition value="The duration after the event that the date(time) will happen."/><min value="1"/><max value="1"/><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"/></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><isModifier value="false"/><isSummary value="false"/></element><element id="Extension.extension:offset.id"><path value="Extension.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:offset.extension"><path value="Extension.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="Extension"/><definition value="An Extension"/><min value="0"/><max value="0"/><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"/></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><isModifier value="false"/><isSummary value="false"/></element><element id="Extension.extension:offset.url"><path value="Extension.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><code value="uri"/></type><fixedUri value="offset"/><isModifier value="false"/><isSummary value="false"/><mapping><identity value="rim"/><map value="N/A"/></mapping></element><element id="Extension.extension:offset.value[x]"><path value="Extension.extension.value[x]"/><short value="Value of extension"/><definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/extensibility.html) for a list)."/><min value="1"/><max value="1"/><base><path value="Extension.value[x]"/><min value="0"/><max value="1"/></base><type><code value="Duration"/></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"/></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/StructureDefinition/relative-date"/><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="Value of extension"/><definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/extensibility.html) for a list)."/><min value="0"/><max value="0"/><base><path value="Extension.value[x]"/><min value="0"/><max value="1"/></base><type><code value="base64Binary"/></type><type><code value="boolean"/></type><type><code value="canonical"/></type><type><code value="code"/></type><type><code value="date"/></type><type><code value="dateTime"/></type><type><code value="decimal"/></type><type><code value="id"/></type><type><code value="instant"/></type><type><code value="integer"/></type><type><code value="markdown"/></type><type><code value="oid"/></type><type><code value="positiveInt"/></type><type><code value="string"/></type><type><code value="time"/></type><type><code value="unsignedInt"/></type><type><code value="uri"/></type><type><code value="url"/></type><type><code value="uuid"/></type><type><code value="Address"/></type><type><code value="Age"/></type><type><code value="Annotation"/></type><type><code value="Attachment"/></type><type><code value="CodeableConcept"/></type><type><code value="Coding"/></type><type><code value="ContactPoint"/></type><type><code value="Count"/></type><type><code value="Distance"/></type><type><code value="Duration"/></type><type><code value="HumanName"/></type><type><code value="Identifier"/></type><type><code value="Money"/></type><type><code value="Period"/></type><type><code value="Quantity"/></type><type><code value="Range"/></type><type><code value="Ratio"/></type><type><code value="Reference"/></type><type><code value="SampledData"/></type><type><code value="Signature"/></type><type><code value="Timing"/></type><type><code value="ContactDetail"/></type><type><code value="Contributor"/></type><type><code value="DataRequirement"/></type><type><code value="Expression"/></type><type><code value="ParameterDefinition"/></type><type><code value="RelatedArtifact"/></type><type><code value="TriggerDefinition"/></type><type><code value="UsageContext"/></type><type><code value="Dosage"/></type><type><code value="Meta"/></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"/></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="Relative Date Criteria"/><definition value="Specifies that a date is relative to some event. The event happens [Duration] after [Event]."/><comment value="This extension is used when a precise date is not known, but rather, the date will be relative to some future event (e.g. Do this 2 weeks after an operation)."/><min value="0"/><max value="1"/></element><element id="Extension.extension:event"><path value="Extension.extension"/><sliceName value="event"/><short value="Event that the date is relative to"/><definition value="The event that the date(time) is relative to."/><comment value="This can be a reference to a particular event, or a kind of event (usually where the kind would not happen very frequently)."/><min value="1"/><max value="1"/><type><code value="Extension"/></type></element><element id="Extension.extension:event.extension"><path value="Extension.extension.extension"/><max value="0"/></element><element id="Extension.extension:event.url"><path value="Extension.extension.url"/><type><code value="uri"/></type><fixedUri value="event"/></element><element id="Extension.extension:event.value[x]"><path value="Extension.extension.value[x]"/><min value="1"/><type><code value="Reference"/><targetProfile value="http://hl7.org/fhir/StructureDefinition/Resource"/></type><type><code value="CodeableConcept"/></type></element><element id="Extension.extension:relationship"><path value="Extension.extension"/><sliceName value="relationship"/><short value="before-start | before | before-end | concurrent-with-start | concurrent | concurrent-with-end | after-start | after | after-end"/><definition value="Defines the relationship between the event and the date."/><min value="1"/><max value="1"/><type><code value="Extension"/></type></element><element id="Extension.extension:relationship.extension"><path value="Extension.extension.extension"/><max value="0"/></element><element id="Extension.extension:relationship.url"><path value="Extension.extension.url"/><type><code value="uri"/></type><fixedUri value="relationship"/></element><element id="Extension.extension:relationship.value[x]"><path value="Extension.extension.value[x]"/><min value="1"/><type><code value="code"/></type><binding><extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"><valueString value="ActionRelationshipType"/></extension><strength value="required"/><description value="Defines the types of relationships between actions."/><valueSet value="http://hl7.org/fhir/ValueSet/action-relationship-type|4.0.1"/></binding></element><element id="Extension.extension:offset"><path value="Extension.extension"/><sliceName value="offset"/><short value="Duration after the event"/><definition value="The duration after the event that the date(time) will happen."/><min value="1"/><max value="1"/><type><code value="Extension"/></type></element><element id="Extension.extension:offset.extension"><path value="Extension.extension.extension"/><max value="0"/></element><element id="Extension.extension:offset.url"><path value="Extension.extension.url"/><type><code value="uri"/></type><fixedUri value="offset"/></element><element id="Extension.extension:offset.value[x]"><path value="Extension.extension.value[x]"/><min value="1"/><type><code value="Duration"/></type></element><element id="Extension.url"><path value="Extension.url"/><fixedUri value="http://hl7.org/fhir/StructureDefinition/relative-date"/></element><element id="Extension.value[x]"><path value="Extension.value[x]"/><min value="0"/><max value="0"/></element></differential></StructureDefinition>