5.6 Resource SearchParameter - Content

Name	Flags	Card.	Type	Description & Constraints
SearchParameter	TU		DomainResource	Search parameter for a resource + Warning: Name should be usable as an identifier for the module by machine processing applications such as code generation + Rule: If an expression is present, there SHALL be a processingMode + Rule: Search parameters can only have chain names when the search parameter type is 'reference' + Rule: Search parameters comparator can only be used on type 'number', 'date', 'quantity' or 'special'. Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension Interfaces Implemented: CanonicalResource
url	ΣC	1..1	uri	Canonical identifier for this search parameter, represented as a URI (globally unique) + Warning: URL should not contain | or # - these characters make processing canonical references problematic
identifier	Σ	0..*	Identifier	Additional identifier for the search parameter (business identifier)
version	Σ	0..1	string	Business version of the search parameter
versionAlgorithm[x]	Σ	0..1		How to compare versions Binding: Version Algorithm (Extensible)
versionAlgorithmString			string
versionAlgorithmCoding			Coding
name	ΣC	1..1	string	Name for this search parameter (computer friendly)
title	ΣT	0..1	string	Name for this search parameter (human friendly)
derivedFrom		0..1	canonical(SearchParameter)	Original definition for the search parameter
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (Required)
experimental	Σ	0..1	boolean	For testing purposes, not real usage
date	Σ	0..1	dateTime	Date last changed
publisher	ΣT	0..1	string	Name of the publisher/steward (organization or individual)
contact	Σ	0..*	ContactDetail	Contact details for the publisher
description	ΣT	1..1	markdown	Natural language description of the search parameter
useContext	Σ	0..*	UsageContext	The context that the content is intended to support
jurisdiction	ΣXD	0..*	CodeableConcept	Intended jurisdiction for search parameter (if applicable) Binding: Jurisdiction ValueSet (Extensible)
purpose	T	0..1	markdown	Why this search parameter is defined
copyright	T	0..1	markdown	Use and/or publishing restrictions
copyrightLabel	T	0..1	string	Copyright holder and year(s)
code	Σ	1..1	code	Recommended name for parameter in search url
base	Σ	1..*	code	The resource type(s) this search parameter applies to Binding: Version Independent Resource Types (All) (Required) Additional Bindings Purpose All Resource Types UI Binding
type	ΣC	1..1	code	number | date | string | token | reference | composite | quantity | uri | special Binding: SearchParamType (Required)
expression	C	0..1	string	FHIRPath expression that extracts the values
processingMode	C	0..1	code	normal | phonetic | other Binding: Search Processing Mode Type (Required)
constraint		0..1	string	FHIRPath expression that constraints the usage of this SearchParamete
target		0..*	code	Types of resource (if a resource reference) Binding: Version Independent Resource Types (All) (Required) Additional Bindings Purpose All Resource Types UI Binding
multipleOr		0..1	boolean	Allow multiple values per parameter (or)
multipleAnd		0..1	boolean	Allow multiple parameters (and)
comparator	C	0..*	code	eq | ne | gt | lt | ge | le | sa | eb | ap Binding: Search Comparator (Required)
modifier		0..*	code	missing | exact | contains | not | text | in | not-in | below | above | type | identifier | of-type | code-text | text-advanced | iterate Binding: Search Modifier Code (Required)
chain	C	0..*	string	Chained names supported
component		0..*	BackboneElement	For Composite resources to define the parts
definition		1..1	canonical(SearchParameter)	Defines how the part works
expression		1..1	string	Subexpression relative to main expression
Documentation for this format

See the Extensions for this resource

<SearchParameter xmlns="http://hl7.org/fhir"> 
 <!-- from Resource: id, meta, implicitRules, and language -->
 <!-- from DomainResource: text, contained, extension, and modifierExtension -->
 <url value="[uri]"/><!-- 1..1 Canonical identifier for this search parameter, represented as a URI (globally unique) -->
 <identifier><!-- 0..* Identifier Additional identifier for the search parameter (business identifier) --></identifier>
 <version value="[string]"/><!-- 0..1 Business version of the search parameter -->
 <versionAlgorithm[x]><!-- 0..1 string|Coding How to compare versions --></versionAlgorithm[x]>
 <name value="[string]"/><!-- I 1..1 Name for this search parameter (computer friendly) -->
 <title value="[string]"/><!-- 0..1 Name for this search parameter (human friendly) -->
 <derivedFrom><!-- 0..1 canonical(SearchParameter) Original definition for the search parameter --></derivedFrom>
 <status value="[code]"/><!-- 1..1 draft | active | retired | unknown -->
 <experimental value="[boolean]"/><!-- 0..1 For testing purposes, not real usage -->
 <date value="[dateTime]"/><!-- 0..1 Date last changed -->
 <publisher value="[string]"/><!-- 0..1 Name of the publisher/steward (organization or individual) -->
 <contact><!-- 0..* ContactDetail Contact details for the publisher --></contact>
 <description value="[markdown]"/><!-- 1..1 Natural language description of the search parameter -->
 <useContext><!-- 0..* UsageContext The context that the content is intended to support --></useContext>
 <jurisdiction><!-- 0..* CodeableConcept Intended jurisdiction for search parameter (if applicable) --></jurisdiction>
 <purpose value="[markdown]"/><!-- 0..1 Why this search parameter is defined -->
 <copyright value="[markdown]"/><!-- 0..1 Use and/or publishing restrictions -->
 <copyrightLabel value="[string]"/><!-- 0..1 Copyright holder and year(s) -->
 <code value="[code]"/><!-- 1..1 Recommended name for parameter in search url -->
 <base value="[code]"/><!-- 1..* The resource type(s) this search parameter applies to -->
 <type value="[code]"/><!-- I 1..1 number | date | string | token | reference | composite | quantity | uri | special -->
 <expression value="[string]"/><!-- I 0..1 FHIRPath expression that extracts the values -->
 <processingMode value="[code]"/><!-- I 0..1 normal | phonetic | other -->
 <constraint value="[string]"/><!-- 0..1 FHIRPath expression that constraints the usage of this SearchParamete -->
 <target value="[code]"/><!-- 0..* Types of resource (if a resource reference) -->
 <multipleOr value="[boolean]"/><!-- 0..1 Allow multiple values per parameter (or) -->
 <multipleAnd value="[boolean]"/><!-- 0..1 Allow multiple parameters (and) -->
 <comparator value="[code]"/><!-- I 0..* eq | ne | gt | lt | ge | le | sa | eb | ap -->
 <modifier value="[code]"/><!-- 0..* missing | exact | contains | not | text | in | not-in | below | above | type | identifier | of-type | code-text | text-advanced | iterate -->
 <chain value="[string]"/><!-- I 0..* Chained names supported -->
 <component>  <!-- 0..* For Composite resources to define the parts -->
  <definition><!-- 1..1 canonical(SearchParameter) Defines how the part works --></definition>
  <expression value="[string]"/><!-- 1..1 Subexpression relative to main expression -->
 </component>
</SearchParameter>

{
  "resourceType" : "SearchParameter",
  // from Resource: id, meta, implicitRules, and language
  // from DomainResource: text, contained, extension, and modifierExtension
  "url" : "<uri>", // R!  Canonical identifier for this search parameter, represented as a URI (globally unique)
  "identifier" : [{ Identifier }], // Additional identifier for the search parameter (business identifier)
  "version" : "<string>", // Business version of the search parameter
  // versionAlgorithm[x]: How to compare versions. One of these 2:
  "versionAlgorithmString" : "<string>",
  "versionAlgorithmCoding" : { Coding },
  "name" : "<string>", // I R!  Name for this search parameter (computer friendly)
  "title" : "<string>", // Name for this search parameter (human friendly)
  "derivedFrom" : "<canonical(SearchParameter)>", // Original definition for the search parameter
  "status" : "<code>", // R!  draft | active | retired | unknown
  "experimental" : <boolean>, // For testing purposes, not real usage
  "date" : "<dateTime>", // Date last changed
  "publisher" : "<string>", // Name of the publisher/steward (organization or individual)
  "contact" : [{ ContactDetail }], // Contact details for the publisher
  "description" : "<markdown>", // R!  Natural language description of the search parameter
  "useContext" : [{ UsageContext }], // The context that the content is intended to support
  "jurisdiction" : [{ CodeableConcept }], // Intended jurisdiction for search parameter (if applicable)
  "purpose" : "<markdown>", // Why this search parameter is defined
  "copyright" : "<markdown>", // Use and/or publishing restrictions
  "copyrightLabel" : "<string>", // Copyright holder and year(s)
  "code" : "<code>", // R!  Recommended name for parameter in search url
  "base" : ["<code>"], // R!  The resource type(s) this search parameter applies to
  "type" : "<code>", // I R!  number | date | string | token | reference | composite | quantity | uri | special
  "expression" : "<string>", // I FHIRPath expression that extracts the values
  "processingMode" : "<code>", // I normal | phonetic | other
  "constraint" : "<string>", // FHIRPath expression that constraints the usage of this SearchParamete
  "target" : ["<code>"], // Types of resource (if a resource reference)
  "multipleOr" : <boolean>, // Allow multiple values per parameter (or)
  "multipleAnd" : <boolean>, // Allow multiple parameters (and)
  "comparator" : ["<code>"], // I eq | ne | gt | lt | ge | le | sa | eb | ap
  "modifier" : ["<code>"], // missing | exact | contains | not | text | in | not-in | below | above | type | identifier | of-type | code-text | text-advanced | iterate
  "chain" : ["<string>"], // I Chained names supported
  "component" : [{ // For Composite resources to define the parts
    "definition" : "<canonical(SearchParameter)>", // R!  Defines how the part works
    "expression" : "<string>" // R!  Subexpression relative to main expression
  }]
}

@prefix fhir: <http://hl7.org/fhir/> .


[ a fhir:SearchParameter;
  fhir:nodeRole fhir:treeRoot; # if this is the parser root

  # from Resource: .id, .meta, .implicitRules, and .language
  # from DomainResource: .text, .contained, .extension, and .modifierExtension
  fhir:url [ uri ] ; # 1..1 Canonical identifier for this search parameter, represented as a URI (globally unique)
  fhir:identifier  ( [ Identifier ] ... ) ; # 0..* Additional identifier for the search parameter (business identifier)
  fhir:version [ string ] ; # 0..1 Business version of the search parameter
  # versionAlgorithm[x] : 0..1 How to compare versions. One of these 2
    fhir:versionAlgorithm [  a fhir:string ; string ]
    fhir:versionAlgorithm [  a fhir:Coding ; Coding ]
  fhir:name [ string ] ; # 1..1 I Name for this search parameter (computer friendly)
  fhir:title [ string ] ; # 0..1 Name for this search parameter (human friendly)
  fhir:derivedFrom [ canonical(SearchParameter) ] ; # 0..1 Original definition for the search parameter
  fhir:status [ code ] ; # 1..1 draft | active | retired | unknown
  fhir:experimental [ boolean ] ; # 0..1 For testing purposes, not real usage
  fhir:date [ dateTime ] ; # 0..1 Date last changed
  fhir:publisher [ string ] ; # 0..1 Name of the publisher/steward (organization or individual)
  fhir:contact  ( [ ContactDetail ] ... ) ; # 0..* Contact details for the publisher
  fhir:description [ markdown ] ; # 1..1 Natural language description of the search parameter
  fhir:useContext  ( [ UsageContext ] ... ) ; # 0..* The context that the content is intended to support
  fhir:jurisdiction  ( [ CodeableConcept ] ... ) ; # 0..* Intended jurisdiction for search parameter (if applicable)
  fhir:purpose [ markdown ] ; # 0..1 Why this search parameter is defined
  fhir:copyright [ markdown ] ; # 0..1 Use and/or publishing restrictions
  fhir:copyrightLabel [ string ] ; # 0..1 Copyright holder and year(s)
  fhir:code [ code ] ; # 1..1 Recommended name for parameter in search url
  fhir:base  ( [ code ] ... ) ; # 1..* The resource type(s) this search parameter applies to
  fhir:type [ code ] ; # 1..1 I number | date | string | token | reference | composite | quantity | uri | special
  fhir:expression [ string ] ; # 0..1 I FHIRPath expression that extracts the values
  fhir:processingMode [ code ] ; # 0..1 I normal | phonetic | other
  fhir:constraint [ string ] ; # 0..1 FHIRPath expression that constraints the usage of this SearchParamete
  fhir:target  ( [ code ] ... ) ; # 0..* Types of resource (if a resource reference)
  fhir:multipleOr [ boolean ] ; # 0..1 Allow multiple values per parameter (or)
  fhir:multipleAnd [ boolean ] ; # 0..1 Allow multiple parameters (and)
  fhir:comparator  ( [ code ] ... ) ; # 0..* I eq | ne | gt | lt | ge | le | sa | eb | ap
  fhir:modifier  ( [ code ] ... ) ; # 0..* missing | exact | contains | not | text | in | not-in | below | above | type | identifier | of-type | code-text | text-advanced | iterate
  fhir:chain  ( [ string ] ... ) ; # 0..* I Chained names supported
  fhir:component ( [ # 0..* For Composite resources to define the parts
    fhir:definition [ canonical(SearchParameter) ] ; # 1..1 Defines how the part works
    fhir:expression [ string ] ; # 1..1 Subexpression relative to main expression
  ] ... ) ;
]

Changes from both R4 and R4B

See the Full Difference for further information

This analysis is available for R4 as XML or JSON and for R4B as XML or JSON.

See R4 <--> R5 Conversion Maps (status = See Conversions Summary.)

Name	Flags	Card.	Type	Description & Constraints
SearchParameter	TU		DomainResource	Search parameter for a resource + Warning: Name should be usable as an identifier for the module by machine processing applications such as code generation + Rule: If an expression is present, there SHALL be a processingMode + Rule: Search parameters can only have chain names when the search parameter type is 'reference' + Rule: Search parameters comparator can only be used on type 'number', 'date', 'quantity' or 'special'. Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension Interfaces Implemented: CanonicalResource
url	ΣC	1..1	uri	Canonical identifier for this search parameter, represented as a URI (globally unique) + Warning: URL should not contain | or # - these characters make processing canonical references problematic
identifier	Σ	0..*	Identifier	Additional identifier for the search parameter (business identifier)
version	Σ	0..1	string	Business version of the search parameter
versionAlgorithm[x]	Σ	0..1		How to compare versions Binding: Version Algorithm (Extensible)
versionAlgorithmString			string
versionAlgorithmCoding			Coding
name	ΣC	1..1	string	Name for this search parameter (computer friendly)
title	ΣT	0..1	string	Name for this search parameter (human friendly)
derivedFrom		0..1	canonical(SearchParameter)	Original definition for the search parameter
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (Required)
experimental	Σ	0..1	boolean	For testing purposes, not real usage
date	Σ	0..1	dateTime	Date last changed
publisher	ΣT	0..1	string	Name of the publisher/steward (organization or individual)
contact	Σ	0..*	ContactDetail	Contact details for the publisher
description	ΣT	1..1	markdown	Natural language description of the search parameter
useContext	Σ	0..*	UsageContext	The context that the content is intended to support
jurisdiction	ΣXD	0..*	CodeableConcept	Intended jurisdiction for search parameter (if applicable) Binding: Jurisdiction ValueSet (Extensible)
purpose	T	0..1	markdown	Why this search parameter is defined
copyright	T	0..1	markdown	Use and/or publishing restrictions
copyrightLabel	T	0..1	string	Copyright holder and year(s)
code	Σ	1..1	code	Recommended name for parameter in search url
base	Σ	1..*	code	The resource type(s) this search parameter applies to Binding: Version Independent Resource Types (All) (Required) Additional Bindings Purpose All Resource Types UI Binding
type	ΣC	1..1	code	number | date | string | token | reference | composite | quantity | uri | special Binding: SearchParamType (Required)
expression	C	0..1	string	FHIRPath expression that extracts the values
processingMode	C	0..1	code	normal | phonetic | other Binding: Search Processing Mode Type (Required)
constraint		0..1	string	FHIRPath expression that constraints the usage of this SearchParamete
target		0..*	code	Types of resource (if a resource reference) Binding: Version Independent Resource Types (All) (Required) Additional Bindings Purpose All Resource Types UI Binding
multipleOr		0..1	boolean	Allow multiple values per parameter (or)
multipleAnd		0..1	boolean	Allow multiple parameters (and)
comparator	C	0..*	code	eq | ne | gt | lt | ge | le | sa | eb | ap Binding: Search Comparator (Required)
modifier		0..*	code	missing | exact | contains | not | text | in | not-in | below | above | type | identifier | of-type | code-text | text-advanced | iterate Binding: Search Modifier Code (Required)
chain	C	0..*	string	Chained names supported
component		0..*	BackboneElement	For Composite resources to define the parts
definition		1..1	canonical(SearchParameter)	Defines how the part works
expression		1..1	string	Subexpression relative to main expression
Documentation for this format

See the Extensions for this resource

<SearchParameter xmlns="http://hl7.org/fhir"> 
 <!-- from Resource: id, meta, implicitRules, and language -->
 <!-- from DomainResource: text, contained, extension, and modifierExtension -->
 <url value="[uri]"/><!-- 1..1 Canonical identifier for this search parameter, represented as a URI (globally unique) -->
 <identifier><!-- 0..* Identifier Additional identifier for the search parameter (business identifier) --></identifier>
 <version value="[string]"/><!-- 0..1 Business version of the search parameter -->
 <versionAlgorithm[x]><!-- 0..1 string|Coding How to compare versions --></versionAlgorithm[x]>
 <name value="[string]"/><!-- I 1..1 Name for this search parameter (computer friendly) -->
 <title value="[string]"/><!-- 0..1 Name for this search parameter (human friendly) -->
 <derivedFrom><!-- 0..1 canonical(SearchParameter) Original definition for the search parameter --></derivedFrom>
 <status value="[code]"/><!-- 1..1 draft | active | retired | unknown -->
 <experimental value="[boolean]"/><!-- 0..1 For testing purposes, not real usage -->
 <date value="[dateTime]"/><!-- 0..1 Date last changed -->
 <publisher value="[string]"/><!-- 0..1 Name of the publisher/steward (organization or individual) -->
 <contact><!-- 0..* ContactDetail Contact details for the publisher --></contact>
 <description value="[markdown]"/><!-- 1..1 Natural language description of the search parameter -->
 <useContext><!-- 0..* UsageContext The context that the content is intended to support --></useContext>
 <jurisdiction><!-- 0..* CodeableConcept Intended jurisdiction for search parameter (if applicable) --></jurisdiction>
 <purpose value="[markdown]"/><!-- 0..1 Why this search parameter is defined -->
 <copyright value="[markdown]"/><!-- 0..1 Use and/or publishing restrictions -->
 <copyrightLabel value="[string]"/><!-- 0..1 Copyright holder and year(s) -->
 <code value="[code]"/><!-- 1..1 Recommended name for parameter in search url -->
 <base value="[code]"/><!-- 1..* The resource type(s) this search parameter applies to -->
 <type value="[code]"/><!-- I 1..1 number | date | string | token | reference | composite | quantity | uri | special -->
 <expression value="[string]"/><!-- I 0..1 FHIRPath expression that extracts the values -->
 <processingMode value="[code]"/><!-- I 0..1 normal | phonetic | other -->
 <constraint value="[string]"/><!-- 0..1 FHIRPath expression that constraints the usage of this SearchParamete -->
 <target value="[code]"/><!-- 0..* Types of resource (if a resource reference) -->
 <multipleOr value="[boolean]"/><!-- 0..1 Allow multiple values per parameter (or) -->
 <multipleAnd value="[boolean]"/><!-- 0..1 Allow multiple parameters (and) -->
 <comparator value="[code]"/><!-- I 0..* eq | ne | gt | lt | ge | le | sa | eb | ap -->
 <modifier value="[code]"/><!-- 0..* missing | exact | contains | not | text | in | not-in | below | above | type | identifier | of-type | code-text | text-advanced | iterate -->
 <chain value="[string]"/><!-- I 0..* Chained names supported -->
 <component>  <!-- 0..* For Composite resources to define the parts -->
  <definition><!-- 1..1 canonical(SearchParameter) Defines how the part works --></definition>
  <expression value="[string]"/><!-- 1..1 Subexpression relative to main expression -->
 </component>
</SearchParameter>

{
  "resourceType" : "SearchParameter",
  // from Resource: id, meta, implicitRules, and language
  // from DomainResource: text, contained, extension, and modifierExtension
  "url" : "<uri>", // R!  Canonical identifier for this search parameter, represented as a URI (globally unique)
  "identifier" : [{ Identifier }], // Additional identifier for the search parameter (business identifier)
  "version" : "<string>", // Business version of the search parameter
  // versionAlgorithm[x]: How to compare versions. One of these 2:
  "versionAlgorithmString" : "<string>",
  "versionAlgorithmCoding" : { Coding },
  "name" : "<string>", // I R!  Name for this search parameter (computer friendly)
  "title" : "<string>", // Name for this search parameter (human friendly)
  "derivedFrom" : "<canonical(SearchParameter)>", // Original definition for the search parameter
  "status" : "<code>", // R!  draft | active | retired | unknown
  "experimental" : <boolean>, // For testing purposes, not real usage
  "date" : "<dateTime>", // Date last changed
  "publisher" : "<string>", // Name of the publisher/steward (organization or individual)
  "contact" : [{ ContactDetail }], // Contact details for the publisher
  "description" : "<markdown>", // R!  Natural language description of the search parameter
  "useContext" : [{ UsageContext }], // The context that the content is intended to support
  "jurisdiction" : [{ CodeableConcept }], // Intended jurisdiction for search parameter (if applicable)
  "purpose" : "<markdown>", // Why this search parameter is defined
  "copyright" : "<markdown>", // Use and/or publishing restrictions
  "copyrightLabel" : "<string>", // Copyright holder and year(s)
  "code" : "<code>", // R!  Recommended name for parameter in search url
  "base" : ["<code>"], // R!  The resource type(s) this search parameter applies to
  "type" : "<code>", // I R!  number | date | string | token | reference | composite | quantity | uri | special
  "expression" : "<string>", // I FHIRPath expression that extracts the values
  "processingMode" : "<code>", // I normal | phonetic | other
  "constraint" : "<string>", // FHIRPath expression that constraints the usage of this SearchParamete
  "target" : ["<code>"], // Types of resource (if a resource reference)
  "multipleOr" : <boolean>, // Allow multiple values per parameter (or)
  "multipleAnd" : <boolean>, // Allow multiple parameters (and)
  "comparator" : ["<code>"], // I eq | ne | gt | lt | ge | le | sa | eb | ap
  "modifier" : ["<code>"], // missing | exact | contains | not | text | in | not-in | below | above | type | identifier | of-type | code-text | text-advanced | iterate
  "chain" : ["<string>"], // I Chained names supported
  "component" : [{ // For Composite resources to define the parts
    "definition" : "<canonical(SearchParameter)>", // R!  Defines how the part works
    "expression" : "<string>" // R!  Subexpression relative to main expression
  }]
}

@prefix fhir: <http://hl7.org/fhir/> .


[ a fhir:SearchParameter;
  fhir:nodeRole fhir:treeRoot; # if this is the parser root

  # from Resource: .id, .meta, .implicitRules, and .language
  # from DomainResource: .text, .contained, .extension, and .modifierExtension
  fhir:url [ uri ] ; # 1..1 Canonical identifier for this search parameter, represented as a URI (globally unique)
  fhir:identifier  ( [ Identifier ] ... ) ; # 0..* Additional identifier for the search parameter (business identifier)
  fhir:version [ string ] ; # 0..1 Business version of the search parameter
  # versionAlgorithm[x] : 0..1 How to compare versions. One of these 2
    fhir:versionAlgorithm [  a fhir:string ; string ]
    fhir:versionAlgorithm [  a fhir:Coding ; Coding ]
  fhir:name [ string ] ; # 1..1 I Name for this search parameter (computer friendly)
  fhir:title [ string ] ; # 0..1 Name for this search parameter (human friendly)
  fhir:derivedFrom [ canonical(SearchParameter) ] ; # 0..1 Original definition for the search parameter
  fhir:status [ code ] ; # 1..1 draft | active | retired | unknown
  fhir:experimental [ boolean ] ; # 0..1 For testing purposes, not real usage
  fhir:date [ dateTime ] ; # 0..1 Date last changed
  fhir:publisher [ string ] ; # 0..1 Name of the publisher/steward (organization or individual)
  fhir:contact  ( [ ContactDetail ] ... ) ; # 0..* Contact details for the publisher
  fhir:description [ markdown ] ; # 1..1 Natural language description of the search parameter
  fhir:useContext  ( [ UsageContext ] ... ) ; # 0..* The context that the content is intended to support
  fhir:jurisdiction  ( [ CodeableConcept ] ... ) ; # 0..* Intended jurisdiction for search parameter (if applicable)
  fhir:purpose [ markdown ] ; # 0..1 Why this search parameter is defined
  fhir:copyright [ markdown ] ; # 0..1 Use and/or publishing restrictions
  fhir:copyrightLabel [ string ] ; # 0..1 Copyright holder and year(s)
  fhir:code [ code ] ; # 1..1 Recommended name for parameter in search url
  fhir:base  ( [ code ] ... ) ; # 1..* The resource type(s) this search parameter applies to
  fhir:type [ code ] ; # 1..1 I number | date | string | token | reference | composite | quantity | uri | special
  fhir:expression [ string ] ; # 0..1 I FHIRPath expression that extracts the values
  fhir:processingMode [ code ] ; # 0..1 I normal | phonetic | other
  fhir:constraint [ string ] ; # 0..1 FHIRPath expression that constraints the usage of this SearchParamete
  fhir:target  ( [ code ] ... ) ; # 0..* Types of resource (if a resource reference)
  fhir:multipleOr [ boolean ] ; # 0..1 Allow multiple values per parameter (or)
  fhir:multipleAnd [ boolean ] ; # 0..1 Allow multiple parameters (and)
  fhir:comparator  ( [ code ] ... ) ; # 0..* I eq | ne | gt | lt | ge | le | sa | eb | ap
  fhir:modifier  ( [ code ] ... ) ; # 0..* missing | exact | contains | not | text | in | not-in | below | above | type | identifier | of-type | code-text | text-advanced | iterate
  fhir:chain  ( [ string ] ... ) ; # 0..* I Chained names supported
  fhir:component ( [ # 0..* For Composite resources to define the parts
    fhir:definition [ canonical(SearchParameter) ] ; # 1..1 Defines how the part works
    fhir:expression [ string ] ; # 1..1 Subexpression relative to main expression
  ] ... ) ;
]

Changes from both R4 and R4B

See the Full Difference for further information

This analysis is available for R4 as XML or JSON and for R4B as XML or JSON.

See R4 <--> R5 Conversion Maps (status = See Conversions Summary.)