Release 5 Draft Ballot

This page is part of the FHIR Specification (v4.6.0: R5 Draft Ballot). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R4B R4

Extension: Relative Date Criteria

FHIR Infrastructure Work Group

Maturity Level: 1

Informative

Use Context: Any

URL for this extension:

http://hl7.org/fhir/StructureDefinition/relative-date

Status: draft. Extension maintained by: Health Level Seven International (FHIR Infrastructure)

Specifies that a date is relative to some event. The event happens [Duration] after [Event].

Comment:

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).

Context of Use: Use on Element ID date or Element ID dateTime

Summary

Name	Card.	Type	Description & Constraints
Relative Date Criteria	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/relative-date Relative Date Criteria: Specifies that a date is relative to some event. The event happens [Duration] after [Event]. Use on Element ID date or Element ID dateTime
event	1..1	Reference(Resource), CodeableConcept	The event that the date(time) is relative to.
relationship	1..1	code	Defines the relationship between the event and the date.
offset	1..1	Duration	The duration after the event that the date(time) will happen.
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/relative-date Relative Date Criteria: Specifies that a date is relative to some event. The event happens [Duration] after [Event]. Use on Element ID date or Element ID dateTime
extension	0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
extension:event	1..1	Extension	Event that the date is relative to
id	0..1	string	Unique id for inter-element referencing
extension	0..0
url	1..1	uri	"event"
value[x]	1..1		Value of extension
valueReference		Reference(Resource)
valueCodeableConcept		CodeableConcept
extension:relationship	1..1	Extension	before-start \| before \| before-end \| concurrent-with-start \| concurrent \| concurrent-with-end \| after-start \| after \| after-end
id	0..1	string	Unique id for inter-element referencing
extension	0..0
url	1..1	uri	"relationship"
value[x]	1..1	code	Value of extension Binding: ActionRelationshipType (required)
extension:offset	1..1	Extension	Duration after the event
id	0..1	string	Unique id for inter-element referencing
extension	0..0
url	1..1	uri	"offset"
value[x]	1..1	Duration	Value of extension
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/relative-date"
value[x]	0..0
valueBase64Binary		base64Binary
valueBoolean		boolean
valueCanonical		canonical(Any)
valueCode		code
valueDate		date
valueDateTime		dateTime
valueDecimal		decimal
valueId		id
valueInstant		instant
valueInteger		integer
valueInteger64		integer64
valueMarkdown		markdown
valueOid		oid
valuePositiveInt		positiveInt
valueString		string
valueTime		time
valueUnsignedInt		unsignedInt
valueUri		uri
valueUrl		url
valueUuid		uuid
valueAddress		Address
valueAge		Age
valueAnnotation		Annotation
valueAttachment		Attachment
valueCodeableConcept		CodeableConcept
valueCoding		Coding
valueContactPoint		ContactPoint
valueCount		Count
valueDistance		Distance
valueDuration		Duration
valueHumanName		HumanName
valueIdentifier		Identifier
valueMoney		Money
valuePeriod		Period
valueQuantity		Quantity
valueRange		Range
valueRatio		Ratio
valueReference		Reference(Any)
valueSampledData		SampledData
valueSignature		Signature
valueTiming		Timing
valueContactDetail		ContactDetail
valueContributor		Contributor
valueDataRequirement		DataRequirement
valueExpression		Expression
valueParameterDefinition		ParameterDefinition
valueRelatedArtifact		RelatedArtifact
valueTriggerDefinition		TriggerDefinition
valueUsageContext		UsageContext
valueDosage		Dosage
valueMeta		Meta
Documentation for this format

XML Template

<!-- Relative Date Criteria -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/relative-date" >
 <-- extension sliced by value:url  in the specified orderOpen-->
 <extension url="event">  1..1 Extension  <!--  1..1 Event that the date is relative to -->
  <value[x]><!--  1..1 Reference(Resource)|CodeableConcept 
      Value of extension --></value[x]>
 </extension>
 <extension url="relationship">  1..1 Extension  <!--  1..1 before-start | before | before-end | concurrent-with-start | concurrent | concurrent-with-end | after-start | after | after-end -->
  <valueCode value="[code]"/><!--  1..1 Value of extension -->
 </extension>
 <extension url="offset">  1..1 Extension  <!--  1..1 Duration after the event -->
  <valueDuration><!--  1..1 Duration Value of extension --></valueDuration>
 </extension>
</extension>

JSON Template

{ // Relative Date Criteria
    "extension" : [ //  sliced by value:url  in the specified order, Open 
      { // Event that the date is relative to // C? R! 
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "event", // R! 
// value[x]: Value of extension. One of these 2:
        "valueReference" : { Reference(Resource) } // C? R! Value of extension
        "valueCodeableConcept" : { CodeableConcept }, // C? R! Value of extension
      },
      { // before-start | before | before-end | concurrent-with-start | concurrent | concurrent-with-end | after-start | after | after-end // C? R! 
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "relationship", // R! 
        "valueCode" : "<code>" // C? R! Value of extension
      },
      { // Duration after the event // C? R! 
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "offset", // R! 
        "valueDuration" : { Duration } // C? R! Value of extension
      }
    ],
    "url" : "http://hl7.org/fhir/StructureDefinition/relative-date", // R! 
// value[x]: Value of extension. One of these 51:
  }

Summary

Name	Card.	Type	Description & Constraints
Relative Date Criteria	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/relative-date Relative Date Criteria: Specifies that a date is relative to some event. The event happens [Duration] after [Event]. Use on Element ID date or Element ID dateTime
event	1..1	Reference(Resource), CodeableConcept	The event that the date(time) is relative to.
relationship	1..1	code	Defines the relationship between the event and the date.
offset	1..1	Duration	The duration after the event that the date(time) will happen.
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/relative-date Relative Date Criteria: Specifies that a date is relative to some event. The event happens [Duration] after [Event]. Use on Element ID date or Element ID dateTime
extension	0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
extension:event	1..1	Extension	Event that the date is relative to
id	0..1	string	Unique id for inter-element referencing
extension	0..0
url	1..1	uri	"event"
value[x]	1..1		Value of extension
valueReference		Reference(Resource)
valueCodeableConcept		CodeableConcept
extension:relationship	1..1	Extension	before-start \| before \| before-end \| concurrent-with-start \| concurrent \| concurrent-with-end \| after-start \| after \| after-end
id	0..1	string	Unique id for inter-element referencing
extension	0..0
url	1..1	uri	"relationship"
value[x]	1..1	code	Value of extension Binding: ActionRelationshipType (required)
extension:offset	1..1	Extension	Duration after the event
id	0..1	string	Unique id for inter-element referencing
extension	0..0
url	1..1	uri	"offset"
value[x]	1..1	Duration	Value of extension
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/relative-date"
value[x]	0..0
valueBase64Binary		base64Binary
valueBoolean		boolean
valueCanonical		canonical(Any)
valueCode		code
valueDate		date
valueDateTime		dateTime
valueDecimal		decimal
valueId		id
valueInstant		instant
valueInteger		integer
valueInteger64		integer64
valueMarkdown		markdown
valueOid		oid
valuePositiveInt		positiveInt
valueString		string
valueTime		time
valueUnsignedInt		unsignedInt
valueUri		uri
valueUrl		url
valueUuid		uuid
valueAddress		Address
valueAge		Age
valueAnnotation		Annotation
valueAttachment		Attachment
valueCodeableConcept		CodeableConcept
valueCoding		Coding
valueContactPoint		ContactPoint
valueCount		Count
valueDistance		Distance
valueDuration		Duration
valueHumanName		HumanName
valueIdentifier		Identifier
valueMoney		Money
valuePeriod		Period
valueQuantity		Quantity
valueRange		Range
valueRatio		Ratio
valueReference		Reference(Any)
valueSampledData		SampledData
valueSignature		Signature
valueTiming		Timing
valueContactDetail		ContactDetail
valueContributor		Contributor
valueDataRequirement		DataRequirement
valueExpression		Expression
valueParameterDefinition		ParameterDefinition
valueRelatedArtifact		RelatedArtifact
valueTriggerDefinition		TriggerDefinition
valueUsageContext		UsageContext
valueDosage		Dosage
valueMeta		Meta
Documentation for this format

XML Template

<!-- Relative Date Criteria -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/relative-date" >
 <-- extension sliced by value:url  in the specified orderOpen-->
 <extension url="event">  1..1 Extension  <!--  1..1 Event that the date is relative to -->
  <value[x]><!--  1..1 Reference(Resource)|CodeableConcept 
      Value of extension --></value[x]>
 </extension>
 <extension url="relationship">  1..1 Extension  <!--  1..1 before-start | before | before-end | concurrent-with-start | concurrent | concurrent-with-end | after-start | after | after-end -->
  <valueCode value="[code]"/><!--  1..1 Value of extension -->
 </extension>
 <extension url="offset">  1..1 Extension  <!--  1..1 Duration after the event -->
  <valueDuration><!--  1..1 Duration Value of extension --></valueDuration>
 </extension>
</extension>

JSON Template

{ // Relative Date Criteria
    "extension" : [ //  sliced by value:url  in the specified order, Open 
      { // Event that the date is relative to // C? R! 
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "event", // R! 
// value[x]: Value of extension. One of these 2:
        "valueReference" : { Reference(Resource) } // C? R! Value of extension
        "valueCodeableConcept" : { CodeableConcept }, // C? R! Value of extension
      },
      { // before-start | before | before-end | concurrent-with-start | concurrent | concurrent-with-end | after-start | after | after-end // C? R! 
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "relationship", // R! 
        "valueCode" : "<code>" // C? R! Value of extension
      },
      { // Duration after the event // C? R! 
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "url" : "offset", // R! 
        "valueDuration" : { Duration } // C? R! Value of extension
      }
    ],
    "url" : "http://hl7.org/fhir/StructureDefinition/relative-date", // R! 
// value[x]: Value of extension. One of these 51:
  }

Constraints

ele-1: All FHIR elements must have a @value or children (xpath: @value|f:*|h:div)
ext-1: Must have either extensions or value[x], not both (xpath: exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')]))
ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.extension.value[x]: @value|f:*|h:div)
ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.extension.value[x]: @value|f:*|h:div)
ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension.extension: @value|f:*|h:div)
ext-1: On Extension.extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
ele-1: On Extension.extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.extension.value[x]: @value|f:*|h:div)
ele-1: On Extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.value[x]: @value|f:*|h:div)