SMART Base, published by WHO. This guide is not an authorized publication; it is the continuous build for version 0.2.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/WorldHealthOrganization/smart-base/ and changes regularly. See the Directory of published versions

• Content
• Detailed Descriptions
• Mappings
• XML
• JSON
• TTL

Resource Profile: SMART Guidelines Logical Model

Defines the minimum expectations for Logical Models used in SMART Guidelines

Usages:

• Refer to this Profile: SMART Guidelines ImplementationGuide

You can also check for usages in the FHIR IG Statistics

Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

• Key Elements Table
• Differential Table
• Snapshot Table
• Statistics/References
• All

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
StructureDefinition	C	0..*	StructureDefinition	Structural Definition Constraints: sdf-0, sdf-1, sdf-15a, sdf-4, sdf-5, sdf-6, sdf-9, sdf-11, sdf-14, sdf-15, sdf-16, sdf-17, sdf-18, sdf-19, sdf-21, sdf-22, sdf-23
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
url	Σ	1..1	uri	Canonical identifier for this structure definition, represented as a URI (globally unique)
name	ΣC	1..1	string	Name for this structure definition (computer friendly)
title	Σ	1..1	string	Name for this structure definition (human friendly)
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact.
publisher	Σ	1..1	string	Name of the publisher (organization or individual)
description		1..1	markdown	Natural language description of the structure definition
kind	Σ	1..1	code	primitive-type | complex-type | resource | logical Binding: StructureDefinitionKind (required): Defines the type of structure that a definition is describing. Required Pattern: logical
abstract	Σ	1..1	boolean	Whether the structure is abstract
type	ΣC	1..1	uri	Type defined or constrained by this structure Binding: FHIRDefinedType (extensible): Either a resource or a data type, including logical model types.
differential	C	0..1	BackboneElement	Differential view of the structure Constraints: sdf-20, sdf-8a
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
element		1..*	ElementDefinition	Definition of elements in the resource (if no StructureDefinition)
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
path	Σ	1..1	string	Path of the element in the hierarchy of elements
Slices for code	Σ	1..*	Coding	Corresponding codes in terminologies Slice: Unordered, Open by pattern:system Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
code:smart	SΣ	1..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/smart
code:loinc	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/loinc
code:snomed	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/snomed
code:icd-10	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icd-10
code:icd-11	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icd-11
code:icf	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icf
code:ichi	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/ichi
code:snomed-gps	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/smart-gps
code:atc	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/atc
short	Σ	1..1	string	Concise definition for space-constrained presentation
definition	Σ	1..1	markdown	Full formal definition as narrative text
max	ΣC	0..1	string	Maximum Cardinality (a number or *) Constraints: eld-3
type	ΣC	1..1	Element	Data type and Profile for this element Constraints: eld-4, eld-17
code	Σ	1..1	uri	Data type or Resource (reference to definition) Binding: FHIRDefinedType (extensible): Either a resource or a data type, including logical model types.
fixed[x]	ΣC	0..1		Value must be exactly this
fixedBase64Binary			base64Binary
fixedBoolean			boolean
fixedCanonical			canonical(Any)
fixedCode			code
fixedDate			date
fixedDateTime			dateTime
fixedDecimal			decimal
fixedId			id
fixedInstant			instant
fixedInteger			integer
fixedMarkdown			markdown
fixedOid			oid
fixedPositiveInt			positiveInt
fixedString			string
fixedTime			time
fixedUnsignedInt			unsignedInt
fixedUri			uri
fixedUrl			url
fixedUuid			uuid
fixedAddress			Address
fixedAge			Age
fixedAnnotation			Annotation
fixedAttachment			Attachment
fixedCodeableConcept			CodeableConcept
fixedCoding			Coding
fixedContactPoint			ContactPoint
fixedCount			Count
fixedDistance			Distance
fixedDuration			Duration
fixedHumanName			HumanName
fixedIdentifier			Identifier
fixedMoney			Money
fixedPeriod			Period
fixedQuantity			Quantity
fixedRange			Range
fixedRatio			Ratio
fixedReference			Reference(Any)
fixedSampledData			SampledData
fixedSignature			Signature
fixedTiming			Timing
fixedContactDetail			ContactDetail
fixedContributor			Contributor
fixedDataRequirement			DataRequirement
fixedExpression			Expression
fixedParameterDefinition			ParameterDefinition
fixedRelatedArtifact			RelatedArtifact
fixedTriggerDefinition			TriggerDefinition
fixedUsageContext			UsageContext
fixedDosage			Dosage
fixedMeta			Meta
pattern[x]	ΣC	0..1		Value must have at least these property values
patternBase64Binary			base64Binary
patternBoolean			boolean
patternCanonical			canonical(Any)
patternCode			code
patternDate			date
patternDateTime			dateTime
patternDecimal			decimal
patternId			id
patternInstant			instant
patternInteger			integer
patternMarkdown			markdown
patternOid			oid
patternPositiveInt			positiveInt
patternString			string
patternTime			time
patternUnsignedInt			unsignedInt
patternUri			uri
patternUrl			url
patternUuid			uuid
patternAddress			Address
patternAge			Age
patternAnnotation			Annotation
patternAttachment			Attachment
patternCodeableConcept			CodeableConcept
patternCoding			Coding
patternContactPoint			ContactPoint
patternCount			Count
patternDistance			Distance
patternDuration			Duration
patternHumanName			HumanName
patternIdentifier			Identifier
patternMoney			Money
patternPeriod			Period
patternQuantity			Quantity
patternRange			Range
patternRatio			Ratio
patternReference			Reference(Any)
patternSampledData			SampledData
patternSignature			Signature
patternTiming			Timing
patternContactDetail			ContactDetail
patternContributor			Contributor
patternDataRequirement			DataRequirement
patternExpression			Expression
patternParameterDefinition			ParameterDefinition
patternRelatedArtifact			RelatedArtifact
patternTriggerDefinition			TriggerDefinition
patternUsageContext			UsageContext
patternDosage			Dosage
patternMeta			Meta
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
StructureDefinition.​status	Base	required	PublicationStatus	📍4.0.1	FHIR Std.
StructureDefinition.​kind	Base	required	StructureDefinitionKind	📍4.0.1	FHIR Std.
StructureDefinition.​type	Base	extensible	FHIRDefinedType	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:smart	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:loinc	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:snomed	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:icd-10	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:icd-11	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:icf	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:ichi	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:snomed-gps	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:atc	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​type.code	Base	extensible	FHIRDefinedType	📍4.0.1	FHIR Std.

Constraints

Id	Grade	Path(s)	Description	Expression
dom-2	error	StructureDefinition	If the resource is contained in another resource, it SHALL NOT contain nested Resources	contained.contained.empty()
dom-3	error	StructureDefinition	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource	contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	StructureDefinition	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated	contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	StructureDefinition	If a resource is contained in another resource, it SHALL NOT have a security label	contained.meta.security.empty()
dom-6	best practice	StructureDefinition	A resource should have narrative for robust management	text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
eld-3	error	StructureDefinition.differential.element.max	Max SHALL be a number or "*"	empty() or ($this = '*') or (toInteger() >= 0)
eld-4	error	StructureDefinition.differential.element.type	Aggregation may only be specified if one of the allowed types for the element is a reference	aggregation.empty() or (code = 'Reference') or (code = 'canonical')
eld-17	error	StructureDefinition.differential.element.type	targetProfile is only allowed if the type is Reference or canonical	(code='Reference' or code = 'canonical') or targetProfile.empty()
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both	extension.exists() != value.exists()
sdf-0	warning	StructureDefinition	Name should be usable as an identifier for the module by machine processing applications such as code generation	name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
sdf-1	error	StructureDefinition	Element paths must be unique unless the structure is a constraint	derivation = 'constraint' or snapshot.element.select(path).isDistinct()
sdf-4	error	StructureDefinition	If the structure is not abstract, then there SHALL be a baseDefinition Requirements: Ensure that the base types are abstract	abstract = true or baseDefinition.exists()
sdf-5	error	StructureDefinition	If the structure defines an extension then the structure must have context information	type != 'Extension' or derivation = 'specialization' or (context.exists())
sdf-6	error	StructureDefinition	A structure must have either a differential, or a snapshot (or both)	snapshot.exists() or differential.exists()
sdf-9	error	StructureDefinition	In any snapshot or differential, no label, code or requirements on an element without a "." in the path (e.g. the first element) Requirements: Because these 3 fields seem to be have overlapping meaning with the ones in the root of StructureDefinition	children().element.where(path.contains('.').not()).label.empty() and children().element.where(path.contains('.').not()).code.empty() and children().element.where(path.contains('.').not()).requirements.empty()
sdf-11	error	StructureDefinition	If there's a type, its content must match the path name in the first element of a snapshot Requirements: Ensure that the type is not inconsistent with the other information in the structure	kind != 'logical' implies snapshot.empty() or snapshot.element.first().path = type
sdf-14	error	StructureDefinition	All element definitions must have an id Requirements: elements have id	snapshot.element.all(id.exists()) and differential.element.all(id.exists())
sdf-15	error	StructureDefinition	The first element in a snapshot has no type unless model is a logical model. Requirements: No Type on the root element (snapshot)	kind!='logical' implies snapshot.element.first().type.empty()
sdf-15a	error	StructureDefinition	If the first element in a differential has no "." in the path and it's not a logical model, it has no type Requirements: No Type on the root element (differential)	(kind!='logical' and differential.element.first().path.contains('.').not()) implies differential.element.first().type.empty()
sdf-16	error	StructureDefinition	All element definitions must have unique ids (snapshot) Requirements: element ids need to be unique	snapshot.element.all(id.exists()) and snapshot.element.id.trace('ids').isDistinct()
sdf-17	error	StructureDefinition	All element definitions must have unique ids (diff) Requirements: element ids need to be unique	differential.element.all(id.exists()) and differential.element.id.trace('ids').isDistinct()
sdf-18	error	StructureDefinition	Context Invariants can only be used for extensions Requirements: contextInvariant	contextInvariant.exists() implies type = 'Extension'
sdf-19	error	StructureDefinition	FHIR Specification models only use FHIR defined types Requirements: custom types only in logical models	url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (differential.element.type.code.all(matches('^[a-zA-Z0-9]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')) and snapshot.element.type.code.all(matches('^[a-zA-Z0-9\\.]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')))
sdf-20	error	StructureDefinition.differential	No slicing on the root element Requirements: no slicing on root	element.where(path.contains('.').not()).slicing.empty()
sdf-21	error	StructureDefinition	Default values can only be specified on specializations Requirements: no default values on data types or resources	differential.element.defaultValue.exists() implies (derivation = 'specialization')
sdf-22	error	StructureDefinition	FHIR Specification models never have default values Requirements: no default values on data types or resources	url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (snapshot.element.defaultValue.empty() and differential.element.defaultValue.empty())
sdf-23	error	StructureDefinition	No slice name on root Requirements: no sliceName on root	(snapshot | differential).element.all(path.contains('.').not() implies sliceName.empty())
sdf-8a	error	StructureDefinition.differential	In any differential, all the elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models	(%resource.kind = 'logical' or element.first().path.startsWith(%resource.type)) and (element.tail().empty() or element.tail().all(path.startsWith(%resource.differential.element.first().path.replaceMatches('\\..*','')&'.')))

This structure is derived from StructureDefinition

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
StructureDefinition		0..*	StructureDefinition	Structural Definition
title		1..1	string	Name for this structure definition (human friendly)
publisher		1..1	string	Name of the publisher (organization or individual)
description		1..1	markdown	Natural language description of the structure definition
kind		1..1	code	primitive-type | complex-type | resource | logical Required Pattern: logical
differential
element
Slices for code		1..*	Coding	Corresponding codes in terminologies Slice: Unordered, Open by pattern:system
code:smart	S	1..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/smart
code:loinc	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/loinc
code:snomed	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/snomed
code:icd-10	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icd-10
code:icd-11	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icd-11
code:icf	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icf
code:ichi	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/ichi
code:snomed-gps	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/smart-gps
code:atc	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/atc
short		1..1	string	Concise definition for space-constrained presentation
definition		1..1	markdown	Full formal definition as narrative text
type		1..1	Element	Data type and Profile for this element
Documentation for this format

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
StructureDefinition	C	0..*	StructureDefinition	Structural Definition Constraints: sdf-0, sdf-1, sdf-15a, sdf-4, sdf-5, sdf-6, sdf-9, sdf-11, sdf-14, sdf-15, sdf-16, sdf-17, sdf-18, sdf-19, sdf-21, sdf-22, sdf-23
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding
text		0..1	Narrative	Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
url	Σ	1..1	uri	Canonical identifier for this structure definition, represented as a URI (globally unique)
identifier	Σ	0..*	Identifier	Additional identifier for the structure definition
version	Σ	0..1	string	Business version of the structure definition
name	ΣC	1..1	string	Name for this structure definition (computer friendly)
title	Σ	1..1	string	Name for this structure definition (human friendly)
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact.
experimental	Σ	0..1	boolean	For testing purposes, not real usage
date	Σ	0..1	dateTime	Date last changed
publisher	Σ	1..1	string	Name of the publisher (organization or individual)
contact	Σ	0..*	ContactDetail	Contact details for the publisher
description		1..1	markdown	Natural language description of the structure definition
useContext	Σ	0..*	UsageContext	The context that the content is intended to support
jurisdiction	Σ	0..*	CodeableConcept	Intended jurisdiction for structure definition (if applicable) Binding: Jurisdiction ValueSet (extensible): Countries and regions within which this artifact is targeted for use.
purpose		0..1	markdown	Why this structure definition is defined
copyright		0..1	markdown	Use and/or publishing restrictions
keyword	Σ	0..*	Coding	Assist with indexing and finding Binding: DefinitionUseCodes (extensible): Codes for the meaning of the defined structure (SNOMED CT and LOINC codes, as an example).
fhirVersion	Σ	0..1	code	FHIR Version this StructureDefinition targets Binding: FHIRVersion (required): All published FHIR Versions.
mapping	C	0..*	BackboneElement	External specification that the content is mapped to Constraints: sdf-2
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
identity		1..1	id	Internal id when this mapping is used
uri	C	0..1	uri	Identifies what this mapping refers to
name	C	0..1	string	Names what this mapping refers to
comment		0..1	string	Versions, Issues, Scope limitations etc.
kind	Σ	1..1	code	primitive-type | complex-type | resource | logical Binding: StructureDefinitionKind (required): Defines the type of structure that a definition is describing. Required Pattern: logical
abstract	Σ	1..1	boolean	Whether the structure is abstract
context	ΣC	0..*	BackboneElement	If an extension, where it can be used in instances
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
type	Σ	1..1	code	fhirpath | element | extension Binding: ExtensionContextType (required): How an extension context is interpreted.
expression	Σ	1..1	string	Where the extension can be used in instances
contextInvariant	ΣC	0..*	string	FHIRPath invariants - when the extension can be used
type	ΣC	1..1	uri	Type defined or constrained by this structure Binding: FHIRDefinedType (extensible): Either a resource or a data type, including logical model types.
baseDefinition	ΣC	0..1	canonical(StructureDefinition)	Definition that this type is constrained/specialized from
derivation	Σ	0..1	code	specialization | constraint - How relates to base definition Binding: TypeDerivationRule (required): How a type relates to its baseDefinition.
snapshot	C	0..1	BackboneElement	Snapshot view of the structure Constraints: sdf-3, sdf-8, sdf-8b
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
element	C	1..*	ElementDefinition	Definition of elements in the resource (if no StructureDefinition) Constraints: sdf-10
differential	C	0..1	BackboneElement	Differential view of the structure Constraints: sdf-20, sdf-8a
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
element		1..*	ElementDefinition	Definition of elements in the resource (if no StructureDefinition)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
path	Σ	1..1	string	Path of the element in the hierarchy of elements
representation	Σ	0..*	code	xmlAttr | xmlText | typeAttr | cdaText | xhtml Binding: PropertyRepresentation (required): How a property is represented when serialized.
sliceName	Σ	0..1	string	Name for this particular element (in a set of slices)
sliceIsConstraining	Σ	0..1	boolean	If this slice definition constrains an inherited slice definition (or not)
label	Σ	0..1	string	Name for element to display with or prompt for element
Slices for code	Σ	1..*	Coding	Corresponding codes in terminologies Slice: Unordered, Open by pattern:system Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
code:smart	SΣ	1..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/smart
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:loinc	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/loinc
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:snomed	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/snomed
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:icd-10	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icd-10
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:icd-11	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icd-11
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:icf	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icf
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:ichi	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/ichi
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:snomed-gps	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/smart-gps
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:atc	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/atc
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
slicing	ΣC	0..1	Element	This element is sliced - slices follow Constraints: eld-1
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
discriminator	Σ	0..*	Element	Element values that are used to distinguish the slices
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
type	Σ	1..1	code	value | exists | pattern | type | profile Binding: DiscriminatorType (required): How an element value is interpreted when discrimination is evaluated.
path	Σ	1..1	string	Path to element value
description	ΣC	0..1	string	Text description of how slicing works (or not)
ordered	Σ	0..1	boolean	If elements must be in same order as slices
rules	Σ	1..1	code	closed | open | openAtEnd Binding: SlicingRules (required): How slices are interpreted when evaluating an instance.
short	Σ	1..1	string	Concise definition for space-constrained presentation
definition	Σ	1..1	markdown	Full formal definition as narrative text
comment	Σ	0..1	markdown	Comments about the use of this element
requirements	Σ	0..1	markdown	Why this resource has been created
alias	Σ	0..*	string	Other names
min	ΣC	0..1	unsignedInt	Minimum Cardinality
max	ΣC	0..1	string	Maximum Cardinality (a number or *) Constraints: eld-3
base	Σ	0..1	Element	Base definition information for tools
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
path	Σ	1..1	string	Path that identifies the base element
min	Σ	1..1	unsignedInt	Min cardinality of the base element
max	Σ	1..1	string	Max cardinality of the base element
contentReference	ΣC	0..1	uri	Reference to definition of content for the element
type	ΣC	1..1	Element	Data type and Profile for this element Constraints: eld-4, eld-17
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
code	Σ	1..1	uri	Data type or Resource (reference to definition) Binding: FHIRDefinedType (extensible): Either a resource or a data type, including logical model types.
profile	Σ	0..*	canonical(StructureDefinition | ImplementationGuide)	Profiles (StructureDefinition or IG) - one must apply
targetProfile	Σ	0..*	canonical(StructureDefinition | ImplementationGuide)	Profile (StructureDefinition or IG) on the Reference/canonical target - one must apply
aggregation	ΣC	0..*	code	contained | referenced | bundled - how aggregated Binding: AggregationMode (required): How resource references can be aggregated.
versioning	Σ	0..1	code	either | independent | specific Binding: ReferenceVersionRules (required): Whether a reference needs to be version specific or version independent, or whether either can be used.
defaultValue[x]	ΣC	0..1		Specified value if missing from instance
defaultValueBase64Binary			base64Binary
defaultValueBoolean			boolean
defaultValueCanonical			canonical(Any)
defaultValueCode			code
defaultValueDate			date
defaultValueDateTime			dateTime
defaultValueDecimal			decimal
defaultValueId			id
defaultValueInstant			instant
defaultValueInteger			integer
defaultValueMarkdown			markdown
defaultValueOid			oid
defaultValuePositiveInt			positiveInt
defaultValueString			string
defaultValueTime			time
defaultValueUnsignedInt			unsignedInt
defaultValueUri			uri
defaultValueUrl			url
defaultValueUuid			uuid
defaultValueAddress			Address
defaultValueAge			Age
defaultValueAnnotation			Annotation
defaultValueAttachment			Attachment
defaultValueCodeableConcept			CodeableConcept
defaultValueCoding			Coding
defaultValueContactPoint			ContactPoint
defaultValueCount			Count
defaultValueDistance			Distance
defaultValueDuration			Duration
defaultValueHumanName			HumanName
defaultValueIdentifier			Identifier
defaultValueMoney			Money
defaultValuePeriod			Period
defaultValueQuantity			Quantity
defaultValueRange			Range
defaultValueRatio			Ratio
defaultValueReference			Reference(Any)
defaultValueSampledData			SampledData
defaultValueSignature			Signature
defaultValueTiming			Timing
defaultValueContactDetail			ContactDetail
defaultValueContributor			Contributor
defaultValueDataRequirement			DataRequirement
defaultValueExpression			Expression
defaultValueParameterDefinition			ParameterDefinition
defaultValueRelatedArtifact			RelatedArtifact
defaultValueTriggerDefinition			TriggerDefinition
defaultValueUsageContext			UsageContext
defaultValueDosage			Dosage
defaultValueMeta			Meta
meaningWhenMissing	ΣC	0..1	markdown	Implicit meaning when this element is missing
orderMeaning	Σ	0..1	string	What the order of the elements means
fixed[x]	ΣC	0..1		Value must be exactly this
fixedBase64Binary			base64Binary
fixedBoolean			boolean
fixedCanonical			canonical(Any)
fixedCode			code
fixedDate			date
fixedDateTime			dateTime
fixedDecimal			decimal
fixedId			id
fixedInstant			instant
fixedInteger			integer
fixedMarkdown			markdown
fixedOid			oid
fixedPositiveInt			positiveInt
fixedString			string
fixedTime			time
fixedUnsignedInt			unsignedInt
fixedUri			uri
fixedUrl			url
fixedUuid			uuid
fixedAddress			Address
fixedAge			Age
fixedAnnotation			Annotation
fixedAttachment			Attachment
fixedCodeableConcept			CodeableConcept
fixedCoding			Coding
fixedContactPoint			ContactPoint
fixedCount			Count
fixedDistance			Distance
fixedDuration			Duration
fixedHumanName			HumanName
fixedIdentifier			Identifier
fixedMoney			Money
fixedPeriod			Period
fixedQuantity			Quantity
fixedRange			Range
fixedRatio			Ratio
fixedReference			Reference(Any)
fixedSampledData			SampledData
fixedSignature			Signature
fixedTiming			Timing
fixedContactDetail			ContactDetail
fixedContributor			Contributor
fixedDataRequirement			DataRequirement
fixedExpression			Expression
fixedParameterDefinition			ParameterDefinition
fixedRelatedArtifact			RelatedArtifact
fixedTriggerDefinition			TriggerDefinition
fixedUsageContext			UsageContext
fixedDosage			Dosage
fixedMeta			Meta
pattern[x]	ΣC	0..1		Value must have at least these property values
patternBase64Binary			base64Binary
patternBoolean			boolean
patternCanonical			canonical(Any)
patternCode			code
patternDate			date
patternDateTime			dateTime
patternDecimal			decimal
patternId			id
patternInstant			instant
patternInteger			integer
patternMarkdown			markdown
patternOid			oid
patternPositiveInt			positiveInt
patternString			string
patternTime			time
patternUnsignedInt			unsignedInt
patternUri			uri
patternUrl			url
patternUuid			uuid
patternAddress			Address
patternAge			Age
patternAnnotation			Annotation
patternAttachment			Attachment
patternCodeableConcept			CodeableConcept
patternCoding			Coding
patternContactPoint			ContactPoint
patternCount			Count
patternDistance			Distance
patternDuration			Duration
patternHumanName			HumanName
patternIdentifier			Identifier
patternMoney			Money
patternPeriod			Period
patternQuantity			Quantity
patternRange			Range
patternRatio			Ratio
patternReference			Reference(Any)
patternSampledData			SampledData
patternSignature			Signature
patternTiming			Timing
patternContactDetail			ContactDetail
patternContributor			Contributor
patternDataRequirement			DataRequirement
patternExpression			Expression
patternParameterDefinition			ParameterDefinition
patternRelatedArtifact			RelatedArtifact
patternTriggerDefinition			TriggerDefinition
patternUsageContext			UsageContext
patternDosage			Dosage
patternMeta			Meta
example	Σ	0..*	Element	Example value (as defined for type)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
label	Σ	1..1	string	Describes the purpose of this example
value[x]	Σ	1..1		Value of Example (one of allowed types)
valueBase64Binary			base64Binary
valueBoolean			boolean
valueCanonical			canonical(Any)
valueCode			code
valueDate			date
valueDateTime			dateTime
valueDecimal			decimal
valueId			id
valueInstant			instant
valueInteger			integer
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
minValue[x]	Σ	0..1		Minimum Allowed Value (for some types)
minValueDate			date
minValueDateTime			dateTime
minValueInstant			instant
minValueTime			time
minValueDecimal			decimal
minValueInteger			integer
minValuePositiveInt			positiveInt
minValueUnsignedInt			unsignedInt
minValueQuantity			Quantity
maxValue[x]	Σ	0..1		Maximum Allowed Value (for some types)
maxValueDate			date
maxValueDateTime			dateTime
maxValueInstant			instant
maxValueTime			time
maxValueDecimal			decimal
maxValueInteger			integer
maxValuePositiveInt			positiveInt
maxValueUnsignedInt			unsignedInt
maxValueQuantity			Quantity
maxLength	Σ	0..1	integer	Max length for strings
condition	Σ	0..*	id	Reference to invariant about presence
constraint	ΣC	0..*	Element	Condition that must evaluate to true Constraints: eld-21
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
key	ΣC	1..1	id	Target of 'condition' reference above
requirements	Σ	0..1	string	Why this constraint is necessary or appropriate
severity	Σ	1..1	code	error | warning Binding: ConstraintSeverity (required): SHALL applications comply with this constraint?
human	Σ	1..1	string	Human description of constraint
expression	Σ	0..1	string	FHIRPath expression of constraint
xpath	Σ	0..1	string	XPath expression of constraint
source	Σ	0..1	canonical(StructureDefinition)	Reference to original source of constraint
mustSupport	Σ	0..1	boolean	If the element must be supported
isModifier	Σ	0..1	boolean	If this modifies the meaning of other elements
isModifierReason	Σ	0..1	string	Reason that this element is marked as a modifier
isSummary	Σ	0..1	boolean	Include when _summary = true?
binding	ΣC	0..1	Element	ValueSet details if this is coded Constraints: eld-12
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
strength	Σ	1..1	code	required | extensible | preferred | example Binding: BindingStrength (required): Indication of the degree of conformance expectations associated with a binding.
description	Σ	0..1	string	Human explanation of the value set
valueSet	ΣC	0..1	canonical(ValueSet)	Source of value set
mapping	Σ	0..*	Element	Map element to another set of definitions
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
identity	Σ	1..1	id	Reference to mapping declaration
language	Σ	0..1	code	Computable language of mapping Binding: Mime Types (required): The mime type of an attachment. Any valid mime type is allowed.
map	Σ	1..1	string	Details of the mapping
comment	Σ	0..1	string	Comments about the mapping or its use
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
StructureDefinition.​language	Base	preferred	Common Languages	📍4.0.1	FHIR Std.
StructureDefinition.​status	Base	required	PublicationStatus	📍4.0.1	FHIR Std.
StructureDefinition.​jurisdiction	Base	extensible	Jurisdiction	📍4.0.1	FHIR Std.
StructureDefinition.​keyword	Base	extensible	Structure Definition Use Codes / Keywords	📍4.0.1	FHIR Std.
StructureDefinition.​fhirVersion	Base	required	FHIRVersion	📍4.0.1	FHIR Std.
StructureDefinition.​kind	Base	required	StructureDefinitionKind	📍4.0.1	FHIR Std.
StructureDefinition.​context.type	Base	required	ExtensionContextType	📍4.0.1	FHIR Std.
StructureDefinition.​type	Base	extensible	FHIRDefinedType	📍4.0.1	FHIR Std.
StructureDefinition.​derivation	Base	required	TypeDerivationRule	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​representation	Base	required	PropertyRepresentation	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:smart	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:loinc	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:snomed	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:icd-10	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:icd-11	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:icf	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:ichi	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:snomed-gps	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:atc	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​slicing.discriminator.​type	Base	required	DiscriminatorType	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​slicing.rules	Base	required	SlicingRules	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​type.code	Base	extensible	FHIRDefinedType	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​type.aggregation	Base	required	AggregationMode	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​type.versioning	Base	required	ReferenceVersionRules	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​constraint.severity	Base	required	ConstraintSeverity	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​binding.strength	Base	required	BindingStrength	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​mapping.language	Base	required	MimeType	📍4.0.1	FHIR Std.

Constraints

Id	Grade	Path(s)	Description	Expression
dom-2	error	StructureDefinition	If the resource is contained in another resource, it SHALL NOT contain nested Resources	contained.contained.empty()
dom-3	error	StructureDefinition	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource	contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	StructureDefinition	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated	contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	StructureDefinition	If a resource is contained in another resource, it SHALL NOT have a security label	contained.meta.security.empty()
dom-6	best practice	StructureDefinition	A resource should have narrative for robust management	text.`div`.exists()
eld-1	error	StructureDefinition.differential.element.slicing	If there are no discriminators, there must be a definition	discriminator.exists() or description.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
eld-3	error	StructureDefinition.differential.element.max	Max SHALL be a number or "*"	empty() or ($this = '*') or (toInteger() >= 0)
eld-4	error	StructureDefinition.differential.element.type	Aggregation may only be specified if one of the allowed types for the element is a reference	aggregation.empty() or (code = 'Reference') or (code = 'canonical')
eld-12	error	StructureDefinition.differential.element.binding	ValueSet SHALL start with http:// or https:// or urn:	valueSet.exists() implies (valueSet.startsWith('http:') or valueSet.startsWith('https') or valueSet.startsWith('urn:'))
eld-17	error	StructureDefinition.differential.element.type	targetProfile is only allowed if the type is Reference or canonical	(code='Reference' or code = 'canonical') or targetProfile.empty()
eld-21	warning	StructureDefinition.differential.element.constraint	Constraints should have an expression or else validators will not be able to enforce them	expression.exists()
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both	extension.exists() != value.exists()
sdf-0	warning	StructureDefinition	Name should be usable as an identifier for the module by machine processing applications such as code generation	name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
sdf-1	error	StructureDefinition	Element paths must be unique unless the structure is a constraint	derivation = 'constraint' or snapshot.element.select(path).isDistinct()
sdf-15a	error	StructureDefinition	If the first element in a differential has no "." in the path and it's not a logical model, it has no type Requirements: No Type on the root element (differential)	(kind!='logical' and differential.element.first().path.contains('.').not()) implies differential.element.first().type.empty()
sdf-2	error	StructureDefinition.mapping	Must have at least a name or a uri (or both)	name.exists() or uri.exists()
sdf-3	error	StructureDefinition.snapshot	Each element definition in a snapshot must have a formal definition and cardinalities	element.all(definition.exists() and min.exists() and max.exists())
sdf-4	error	StructureDefinition	If the structure is not abstract, then there SHALL be a baseDefinition Requirements: Ensure that the base types are abstract	abstract = true or baseDefinition.exists()
sdf-5	error	StructureDefinition	If the structure defines an extension then the structure must have context information	type != 'Extension' or derivation = 'specialization' or (context.exists())
sdf-6	error	StructureDefinition	A structure must have either a differential, or a snapshot (or both)	snapshot.exists() or differential.exists()
sdf-8	error	StructureDefinition.snapshot	All snapshot elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models	(%resource.kind = 'logical' or element.first().path = %resource.type) and element.tail().all(path.startsWith(%resource.snapshot.element.first().path&'.'))
sdf-10	error	StructureDefinition.snapshot.element	provide either a binding reference or a description (or both) Requirements: binding is required	binding.empty() or binding.valueSet.exists() or binding.description.exists()
sdf-11	error	StructureDefinition	If there's a type, its content must match the path name in the first element of a snapshot Requirements: Ensure that the type is not inconsistent with the other information in the structure	kind != 'logical' implies snapshot.empty() or snapshot.element.first().path = type
sdf-14	error	StructureDefinition	All element definitions must have an id Requirements: elements have id	snapshot.element.all(id.exists()) and differential.element.all(id.exists())
sdf-15	error	StructureDefinition	The first element in a snapshot has no type unless model is a logical model. Requirements: No Type on the root element (snapshot)	kind!='logical' implies snapshot.element.first().type.empty()
sdf-16	error	StructureDefinition	All element definitions must have unique ids (snapshot) Requirements: element ids need to be unique	snapshot.element.all(id.exists()) and snapshot.element.id.trace('ids').isDistinct()
sdf-17	error	StructureDefinition	All element definitions must have unique ids (diff) Requirements: element ids need to be unique	differential.element.all(id.exists()) and differential.element.id.trace('ids').isDistinct()
sdf-18	error	StructureDefinition	Context Invariants can only be used for extensions Requirements: contextInvariant	contextInvariant.exists() implies type = 'Extension'
sdf-8a	error	StructureDefinition.differential	In any differential, all the elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models	(%resource.kind = 'logical' or element.first().path.startsWith(%resource.type)) and (element.tail().empty() or element.tail().all(path.startsWith(%resource.differential.element.first().path.replaceMatches('\\..*','')&'.')))
sdf-9	error	StructureDefinition	In any snapshot or differential, no label, code or requirements on an element without a "." in the path (e.g. the first element) Requirements: Because these 3 fields seem to be have overlapping meaning with the ones in the root of StructureDefinition	children().element.where(path.contains('.').not()).label.empty() and children().element.where(path.contains('.').not()).code.empty() and children().element.where(path.contains('.').not()).requirements.empty()
sdf-19	error	StructureDefinition	FHIR Specification models only use FHIR defined types Requirements: custom types only in logical models	url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (differential.element.type.code.all(matches('^[a-zA-Z0-9]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')) and snapshot.element.type.code.all(matches('^[a-zA-Z0-9\\.]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')))
sdf-20	error	StructureDefinition.differential	No slicing on the root element Requirements: no slicing on root	element.where(path.contains('.').not()).slicing.empty()
sdf-21	error	StructureDefinition	Default values can only be specified on specializations Requirements: no default values on data types or resources	differential.element.defaultValue.exists() implies (derivation = 'specialization')
sdf-22	error	StructureDefinition	FHIR Specification models never have default values Requirements: no default values on data types or resources	url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (snapshot.element.defaultValue.empty() and differential.element.defaultValue.empty())
sdf-23	error	StructureDefinition	No slice name on root Requirements: no sliceName on root	(snapshot | differential).element.all(path.contains('.').not() implies sliceName.empty())
sdf-8b	error	StructureDefinition.snapshot	All snapshot elements must have a base definition	element.all(base.exists())

This structure is derived from StructureDefinition

Summary

Mandatory: 3 elements(14 nested mandatory elements)
Must-Support: 9 elements

Slices

This structure defines the following Slices:

• The element 1 is sliced based on the value of StructureDefinition.differential.element.code

Key Elements View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
StructureDefinition	C	0..*	StructureDefinition	Structural Definition Constraints: sdf-0, sdf-1, sdf-15a, sdf-4, sdf-5, sdf-6, sdf-9, sdf-11, sdf-14, sdf-15, sdf-16, sdf-17, sdf-18, sdf-19, sdf-21, sdf-22, sdf-23
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
url	Σ	1..1	uri	Canonical identifier for this structure definition, represented as a URI (globally unique)
name	ΣC	1..1	string	Name for this structure definition (computer friendly)
title	Σ	1..1	string	Name for this structure definition (human friendly)
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact.
publisher	Σ	1..1	string	Name of the publisher (organization or individual)
description		1..1	markdown	Natural language description of the structure definition
kind	Σ	1..1	code	primitive-type | complex-type | resource | logical Binding: StructureDefinitionKind (required): Defines the type of structure that a definition is describing. Required Pattern: logical
abstract	Σ	1..1	boolean	Whether the structure is abstract
type	ΣC	1..1	uri	Type defined or constrained by this structure Binding: FHIRDefinedType (extensible): Either a resource or a data type, including logical model types.
differential	C	0..1	BackboneElement	Differential view of the structure Constraints: sdf-20, sdf-8a
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
element		1..*	ElementDefinition	Definition of elements in the resource (if no StructureDefinition)
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
path	Σ	1..1	string	Path of the element in the hierarchy of elements
Slices for code	Σ	1..*	Coding	Corresponding codes in terminologies Slice: Unordered, Open by pattern:system Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
code:smart	SΣ	1..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/smart
code:loinc	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/loinc
code:snomed	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/snomed
code:icd-10	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icd-10
code:icd-11	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icd-11
code:icf	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icf
code:ichi	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/ichi
code:snomed-gps	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/smart-gps
code:atc	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/atc
short	Σ	1..1	string	Concise definition for space-constrained presentation
definition	Σ	1..1	markdown	Full formal definition as narrative text
max	ΣC	0..1	string	Maximum Cardinality (a number or *) Constraints: eld-3
type	ΣC	1..1	Element	Data type and Profile for this element Constraints: eld-4, eld-17
code	Σ	1..1	uri	Data type or Resource (reference to definition) Binding: FHIRDefinedType (extensible): Either a resource or a data type, including logical model types.
fixed[x]	ΣC	0..1		Value must be exactly this
fixedBase64Binary			base64Binary
fixedBoolean			boolean
fixedCanonical			canonical(Any)
fixedCode			code
fixedDate			date
fixedDateTime			dateTime
fixedDecimal			decimal
fixedId			id
fixedInstant			instant
fixedInteger			integer
fixedMarkdown			markdown
fixedOid			oid
fixedPositiveInt			positiveInt
fixedString			string
fixedTime			time
fixedUnsignedInt			unsignedInt
fixedUri			uri
fixedUrl			url
fixedUuid			uuid
fixedAddress			Address
fixedAge			Age
fixedAnnotation			Annotation
fixedAttachment			Attachment
fixedCodeableConcept			CodeableConcept
fixedCoding			Coding
fixedContactPoint			ContactPoint
fixedCount			Count
fixedDistance			Distance
fixedDuration			Duration
fixedHumanName			HumanName
fixedIdentifier			Identifier
fixedMoney			Money
fixedPeriod			Period
fixedQuantity			Quantity
fixedRange			Range
fixedRatio			Ratio
fixedReference			Reference(Any)
fixedSampledData			SampledData
fixedSignature			Signature
fixedTiming			Timing
fixedContactDetail			ContactDetail
fixedContributor			Contributor
fixedDataRequirement			DataRequirement
fixedExpression			Expression
fixedParameterDefinition			ParameterDefinition
fixedRelatedArtifact			RelatedArtifact
fixedTriggerDefinition			TriggerDefinition
fixedUsageContext			UsageContext
fixedDosage			Dosage
fixedMeta			Meta
pattern[x]	ΣC	0..1		Value must have at least these property values
patternBase64Binary			base64Binary
patternBoolean			boolean
patternCanonical			canonical(Any)
patternCode			code
patternDate			date
patternDateTime			dateTime
patternDecimal			decimal
patternId			id
patternInstant			instant
patternInteger			integer
patternMarkdown			markdown
patternOid			oid
patternPositiveInt			positiveInt
patternString			string
patternTime			time
patternUnsignedInt			unsignedInt
patternUri			uri
patternUrl			url
patternUuid			uuid
patternAddress			Address
patternAge			Age
patternAnnotation			Annotation
patternAttachment			Attachment
patternCodeableConcept			CodeableConcept
patternCoding			Coding
patternContactPoint			ContactPoint
patternCount			Count
patternDistance			Distance
patternDuration			Duration
patternHumanName			HumanName
patternIdentifier			Identifier
patternMoney			Money
patternPeriod			Period
patternQuantity			Quantity
patternRange			Range
patternRatio			Ratio
patternReference			Reference(Any)
patternSampledData			SampledData
patternSignature			Signature
patternTiming			Timing
patternContactDetail			ContactDetail
patternContributor			Contributor
patternDataRequirement			DataRequirement
patternExpression			Expression
patternParameterDefinition			ParameterDefinition
patternRelatedArtifact			RelatedArtifact
patternTriggerDefinition			TriggerDefinition
patternUsageContext			UsageContext
patternDosage			Dosage
patternMeta			Meta
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
StructureDefinition.​status	Base	required	PublicationStatus	📍4.0.1	FHIR Std.
StructureDefinition.​kind	Base	required	StructureDefinitionKind	📍4.0.1	FHIR Std.
StructureDefinition.​type	Base	extensible	FHIRDefinedType	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:smart	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:loinc	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:snomed	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:icd-10	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:icd-11	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:icf	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:ichi	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:snomed-gps	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:atc	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​type.code	Base	extensible	FHIRDefinedType	📍4.0.1	FHIR Std.

Constraints

Id	Grade	Path(s)	Description	Expression
dom-2	error	StructureDefinition	If the resource is contained in another resource, it SHALL NOT contain nested Resources	contained.contained.empty()
dom-3	error	StructureDefinition	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource	contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	StructureDefinition	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated	contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	StructureDefinition	If a resource is contained in another resource, it SHALL NOT have a security label	contained.meta.security.empty()
dom-6	best practice	StructureDefinition	A resource should have narrative for robust management	text.`div`.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
eld-3	error	StructureDefinition.differential.element.max	Max SHALL be a number or "*"	empty() or ($this = '*') or (toInteger() >= 0)
eld-4	error	StructureDefinition.differential.element.type	Aggregation may only be specified if one of the allowed types for the element is a reference	aggregation.empty() or (code = 'Reference') or (code = 'canonical')
eld-17	error	StructureDefinition.differential.element.type	targetProfile is only allowed if the type is Reference or canonical	(code='Reference' or code = 'canonical') or targetProfile.empty()
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both	extension.exists() != value.exists()
sdf-0	warning	StructureDefinition	Name should be usable as an identifier for the module by machine processing applications such as code generation	name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
sdf-1	error	StructureDefinition	Element paths must be unique unless the structure is a constraint	derivation = 'constraint' or snapshot.element.select(path).isDistinct()
sdf-4	error	StructureDefinition	If the structure is not abstract, then there SHALL be a baseDefinition Requirements: Ensure that the base types are abstract	abstract = true or baseDefinition.exists()
sdf-5	error	StructureDefinition	If the structure defines an extension then the structure must have context information	type != 'Extension' or derivation = 'specialization' or (context.exists())
sdf-6	error	StructureDefinition	A structure must have either a differential, or a snapshot (or both)	snapshot.exists() or differential.exists()
sdf-9	error	StructureDefinition	In any snapshot or differential, no label, code or requirements on an element without a "." in the path (e.g. the first element) Requirements: Because these 3 fields seem to be have overlapping meaning with the ones in the root of StructureDefinition	children().element.where(path.contains('.').not()).label.empty() and children().element.where(path.contains('.').not()).code.empty() and children().element.where(path.contains('.').not()).requirements.empty()
sdf-11	error	StructureDefinition	If there's a type, its content must match the path name in the first element of a snapshot Requirements: Ensure that the type is not inconsistent with the other information in the structure	kind != 'logical' implies snapshot.empty() or snapshot.element.first().path = type
sdf-14	error	StructureDefinition	All element definitions must have an id Requirements: elements have id	snapshot.element.all(id.exists()) and differential.element.all(id.exists())
sdf-15	error	StructureDefinition	The first element in a snapshot has no type unless model is a logical model. Requirements: No Type on the root element (snapshot)	kind!='logical' implies snapshot.element.first().type.empty()
sdf-15a	error	StructureDefinition	If the first element in a differential has no "." in the path and it's not a logical model, it has no type Requirements: No Type on the root element (differential)	(kind!='logical' and differential.element.first().path.contains('.').not()) implies differential.element.first().type.empty()
sdf-16	error	StructureDefinition	All element definitions must have unique ids (snapshot) Requirements: element ids need to be unique	snapshot.element.all(id.exists()) and snapshot.element.id.trace('ids').isDistinct()
sdf-17	error	StructureDefinition	All element definitions must have unique ids (diff) Requirements: element ids need to be unique	differential.element.all(id.exists()) and differential.element.id.trace('ids').isDistinct()
sdf-18	error	StructureDefinition	Context Invariants can only be used for extensions Requirements: contextInvariant	contextInvariant.exists() implies type = 'Extension'
sdf-19	error	StructureDefinition	FHIR Specification models only use FHIR defined types Requirements: custom types only in logical models	url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (differential.element.type.code.all(matches('^[a-zA-Z0-9]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')) and snapshot.element.type.code.all(matches('^[a-zA-Z0-9\\.]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')))
sdf-20	error	StructureDefinition.differential	No slicing on the root element Requirements: no slicing on root	element.where(path.contains('.').not()).slicing.empty()
sdf-21	error	StructureDefinition	Default values can only be specified on specializations Requirements: no default values on data types or resources	differential.element.defaultValue.exists() implies (derivation = 'specialization')
sdf-22	error	StructureDefinition	FHIR Specification models never have default values Requirements: no default values on data types or resources	url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (snapshot.element.defaultValue.empty() and differential.element.defaultValue.empty())
sdf-23	error	StructureDefinition	No slice name on root Requirements: no sliceName on root	(snapshot | differential).element.all(path.contains('.').not() implies sliceName.empty())
sdf-8a	error	StructureDefinition.differential	In any differential, all the elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models	(%resource.kind = 'logical' or element.first().path.startsWith(%resource.type)) and (element.tail().empty() or element.tail().all(path.startsWith(%resource.differential.element.first().path.replaceMatches('\\..*','')&'.')))

Differential View

This structure is derived from StructureDefinition

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
StructureDefinition		0..*	StructureDefinition	Structural Definition
title		1..1	string	Name for this structure definition (human friendly)
publisher		1..1	string	Name of the publisher (organization or individual)
description		1..1	markdown	Natural language description of the structure definition
kind		1..1	code	primitive-type | complex-type | resource | logical Required Pattern: logical
differential
element
Slices for code		1..*	Coding	Corresponding codes in terminologies Slice: Unordered, Open by pattern:system
code:smart	S	1..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/smart
code:loinc	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/loinc
code:snomed	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/snomed
code:icd-10	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icd-10
code:icd-11	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icd-11
code:icf	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icf
code:ichi	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/ichi
code:snomed-gps	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/smart-gps
code:atc	S	0..1	Coding	Corresponding codes in terminologies
system		1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/atc
short		1..1	string	Concise definition for space-constrained presentation
definition		1..1	markdown	Full formal definition as narrative text
type		1..1	Element	Data type and Profile for this element
Documentation for this format

Snapshot View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
StructureDefinition	C	0..*	StructureDefinition	Structural Definition Constraints: sdf-0, sdf-1, sdf-15a, sdf-4, sdf-5, sdf-6, sdf-9, sdf-11, sdf-14, sdf-15, sdf-16, sdf-17, sdf-18, sdf-19, sdf-21, sdf-22, sdf-23
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: CommonLanguages (preferred): A human language. Additional Bindings Purpose AllLanguages Max Binding
text		0..1	Narrative	Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
url	Σ	1..1	uri	Canonical identifier for this structure definition, represented as a URI (globally unique)
identifier	Σ	0..*	Identifier	Additional identifier for the structure definition
version	Σ	0..1	string	Business version of the structure definition
name	ΣC	1..1	string	Name for this structure definition (computer friendly)
title	Σ	1..1	string	Name for this structure definition (human friendly)
status	?!Σ	1..1	code	draft | active | retired | unknown Binding: PublicationStatus (required): The lifecycle status of an artifact.
experimental	Σ	0..1	boolean	For testing purposes, not real usage
date	Σ	0..1	dateTime	Date last changed
publisher	Σ	1..1	string	Name of the publisher (organization or individual)
contact	Σ	0..*	ContactDetail	Contact details for the publisher
description		1..1	markdown	Natural language description of the structure definition
useContext	Σ	0..*	UsageContext	The context that the content is intended to support
jurisdiction	Σ	0..*	CodeableConcept	Intended jurisdiction for structure definition (if applicable) Binding: Jurisdiction ValueSet (extensible): Countries and regions within which this artifact is targeted for use.
purpose		0..1	markdown	Why this structure definition is defined
copyright		0..1	markdown	Use and/or publishing restrictions
keyword	Σ	0..*	Coding	Assist with indexing and finding Binding: DefinitionUseCodes (extensible): Codes for the meaning of the defined structure (SNOMED CT and LOINC codes, as an example).
fhirVersion	Σ	0..1	code	FHIR Version this StructureDefinition targets Binding: FHIRVersion (required): All published FHIR Versions.
mapping	C	0..*	BackboneElement	External specification that the content is mapped to Constraints: sdf-2
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
identity		1..1	id	Internal id when this mapping is used
uri	C	0..1	uri	Identifies what this mapping refers to
name	C	0..1	string	Names what this mapping refers to
comment		0..1	string	Versions, Issues, Scope limitations etc.
kind	Σ	1..1	code	primitive-type | complex-type | resource | logical Binding: StructureDefinitionKind (required): Defines the type of structure that a definition is describing. Required Pattern: logical
abstract	Σ	1..1	boolean	Whether the structure is abstract
context	ΣC	0..*	BackboneElement	If an extension, where it can be used in instances
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
type	Σ	1..1	code	fhirpath | element | extension Binding: ExtensionContextType (required): How an extension context is interpreted.
expression	Σ	1..1	string	Where the extension can be used in instances
contextInvariant	ΣC	0..*	string	FHIRPath invariants - when the extension can be used
type	ΣC	1..1	uri	Type defined or constrained by this structure Binding: FHIRDefinedType (extensible): Either a resource or a data type, including logical model types.
baseDefinition	ΣC	0..1	canonical(StructureDefinition)	Definition that this type is constrained/specialized from
derivation	Σ	0..1	code	specialization | constraint - How relates to base definition Binding: TypeDerivationRule (required): How a type relates to its baseDefinition.
snapshot	C	0..1	BackboneElement	Snapshot view of the structure Constraints: sdf-3, sdf-8, sdf-8b
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
element	C	1..*	ElementDefinition	Definition of elements in the resource (if no StructureDefinition) Constraints: sdf-10
differential	C	0..1	BackboneElement	Differential view of the structure Constraints: sdf-20, sdf-8a
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
element		1..*	ElementDefinition	Definition of elements in the resource (if no StructureDefinition)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
path	Σ	1..1	string	Path of the element in the hierarchy of elements
representation	Σ	0..*	code	xmlAttr | xmlText | typeAttr | cdaText | xhtml Binding: PropertyRepresentation (required): How a property is represented when serialized.
sliceName	Σ	0..1	string	Name for this particular element (in a set of slices)
sliceIsConstraining	Σ	0..1	boolean	If this slice definition constrains an inherited slice definition (or not)
label	Σ	0..1	string	Name for element to display with or prompt for element
Slices for code	Σ	1..*	Coding	Corresponding codes in terminologies Slice: Unordered, Open by pattern:system Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
code:smart	SΣ	1..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/smart
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:loinc	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/loinc
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:snomed	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/snomed
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:icd-10	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icd-10
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:icd-11	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icd-11
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:icf	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/icf
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:ichi	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/ichi
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:snomed-gps	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/smart-gps
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
code:atc	SΣ	0..1	Coding	Corresponding codes in terminologies Binding: LOINCCodes (example): Codes that indicate the meaning of a data element.
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
system	Σ	1..1	uri	Identity of the terminology system Required Pattern: http://who.smart.codes/atc
version	Σ	0..1	string	Version of the system - if relevant
code	Σ	0..1	code	Symbol in syntax defined by the system
display	Σ	0..1	string	Representation defined by the system
userSelected	Σ	0..1	boolean	If this coding was chosen directly by the user
slicing	ΣC	0..1	Element	This element is sliced - slices follow Constraints: eld-1
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
discriminator	Σ	0..*	Element	Element values that are used to distinguish the slices
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
type	Σ	1..1	code	value | exists | pattern | type | profile Binding: DiscriminatorType (required): How an element value is interpreted when discrimination is evaluated.
path	Σ	1..1	string	Path to element value
description	ΣC	0..1	string	Text description of how slicing works (or not)
ordered	Σ	0..1	boolean	If elements must be in same order as slices
rules	Σ	1..1	code	closed | open | openAtEnd Binding: SlicingRules (required): How slices are interpreted when evaluating an instance.
short	Σ	1..1	string	Concise definition for space-constrained presentation
definition	Σ	1..1	markdown	Full formal definition as narrative text
comment	Σ	0..1	markdown	Comments about the use of this element
requirements	Σ	0..1	markdown	Why this resource has been created
alias	Σ	0..*	string	Other names
min	ΣC	0..1	unsignedInt	Minimum Cardinality
max	ΣC	0..1	string	Maximum Cardinality (a number or *) Constraints: eld-3
base	Σ	0..1	Element	Base definition information for tools
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
path	Σ	1..1	string	Path that identifies the base element
min	Σ	1..1	unsignedInt	Min cardinality of the base element
max	Σ	1..1	string	Max cardinality of the base element
contentReference	ΣC	0..1	uri	Reference to definition of content for the element
type	ΣC	1..1	Element	Data type and Profile for this element Constraints: eld-4, eld-17
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
code	Σ	1..1	uri	Data type or Resource (reference to definition) Binding: FHIRDefinedType (extensible): Either a resource or a data type, including logical model types.
profile	Σ	0..*	canonical(StructureDefinition | ImplementationGuide)	Profiles (StructureDefinition or IG) - one must apply
targetProfile	Σ	0..*	canonical(StructureDefinition | ImplementationGuide)	Profile (StructureDefinition or IG) on the Reference/canonical target - one must apply
aggregation	ΣC	0..*	code	contained | referenced | bundled - how aggregated Binding: AggregationMode (required): How resource references can be aggregated.
versioning	Σ	0..1	code	either | independent | specific Binding: ReferenceVersionRules (required): Whether a reference needs to be version specific or version independent, or whether either can be used.
defaultValue[x]	ΣC	0..1		Specified value if missing from instance
defaultValueBase64Binary			base64Binary
defaultValueBoolean			boolean
defaultValueCanonical			canonical(Any)
defaultValueCode			code
defaultValueDate			date
defaultValueDateTime			dateTime
defaultValueDecimal			decimal
defaultValueId			id
defaultValueInstant			instant
defaultValueInteger			integer
defaultValueMarkdown			markdown
defaultValueOid			oid
defaultValuePositiveInt			positiveInt
defaultValueString			string
defaultValueTime			time
defaultValueUnsignedInt			unsignedInt
defaultValueUri			uri
defaultValueUrl			url
defaultValueUuid			uuid
defaultValueAddress			Address
defaultValueAge			Age
defaultValueAnnotation			Annotation
defaultValueAttachment			Attachment
defaultValueCodeableConcept			CodeableConcept
defaultValueCoding			Coding
defaultValueContactPoint			ContactPoint
defaultValueCount			Count
defaultValueDistance			Distance
defaultValueDuration			Duration
defaultValueHumanName			HumanName
defaultValueIdentifier			Identifier
defaultValueMoney			Money
defaultValuePeriod			Period
defaultValueQuantity			Quantity
defaultValueRange			Range
defaultValueRatio			Ratio
defaultValueReference			Reference(Any)
defaultValueSampledData			SampledData
defaultValueSignature			Signature
defaultValueTiming			Timing
defaultValueContactDetail			ContactDetail
defaultValueContributor			Contributor
defaultValueDataRequirement			DataRequirement
defaultValueExpression			Expression
defaultValueParameterDefinition			ParameterDefinition
defaultValueRelatedArtifact			RelatedArtifact
defaultValueTriggerDefinition			TriggerDefinition
defaultValueUsageContext			UsageContext
defaultValueDosage			Dosage
defaultValueMeta			Meta
meaningWhenMissing	ΣC	0..1	markdown	Implicit meaning when this element is missing
orderMeaning	Σ	0..1	string	What the order of the elements means
fixed[x]	ΣC	0..1		Value must be exactly this
fixedBase64Binary			base64Binary
fixedBoolean			boolean
fixedCanonical			canonical(Any)
fixedCode			code
fixedDate			date
fixedDateTime			dateTime
fixedDecimal			decimal
fixedId			id
fixedInstant			instant
fixedInteger			integer
fixedMarkdown			markdown
fixedOid			oid
fixedPositiveInt			positiveInt
fixedString			string
fixedTime			time
fixedUnsignedInt			unsignedInt
fixedUri			uri
fixedUrl			url
fixedUuid			uuid
fixedAddress			Address
fixedAge			Age
fixedAnnotation			Annotation
fixedAttachment			Attachment
fixedCodeableConcept			CodeableConcept
fixedCoding			Coding
fixedContactPoint			ContactPoint
fixedCount			Count
fixedDistance			Distance
fixedDuration			Duration
fixedHumanName			HumanName
fixedIdentifier			Identifier
fixedMoney			Money
fixedPeriod			Period
fixedQuantity			Quantity
fixedRange			Range
fixedRatio			Ratio
fixedReference			Reference(Any)
fixedSampledData			SampledData
fixedSignature			Signature
fixedTiming			Timing
fixedContactDetail			ContactDetail
fixedContributor			Contributor
fixedDataRequirement			DataRequirement
fixedExpression			Expression
fixedParameterDefinition			ParameterDefinition
fixedRelatedArtifact			RelatedArtifact
fixedTriggerDefinition			TriggerDefinition
fixedUsageContext			UsageContext
fixedDosage			Dosage
fixedMeta			Meta
pattern[x]	ΣC	0..1		Value must have at least these property values
patternBase64Binary			base64Binary
patternBoolean			boolean
patternCanonical			canonical(Any)
patternCode			code
patternDate			date
patternDateTime			dateTime
patternDecimal			decimal
patternId			id
patternInstant			instant
patternInteger			integer
patternMarkdown			markdown
patternOid			oid
patternPositiveInt			positiveInt
patternString			string
patternTime			time
patternUnsignedInt			unsignedInt
patternUri			uri
patternUrl			url
patternUuid			uuid
patternAddress			Address
patternAge			Age
patternAnnotation			Annotation
patternAttachment			Attachment
patternCodeableConcept			CodeableConcept
patternCoding			Coding
patternContactPoint			ContactPoint
patternCount			Count
patternDistance			Distance
patternDuration			Duration
patternHumanName			HumanName
patternIdentifier			Identifier
patternMoney			Money
patternPeriod			Period
patternQuantity			Quantity
patternRange			Range
patternRatio			Ratio
patternReference			Reference(Any)
patternSampledData			SampledData
patternSignature			Signature
patternTiming			Timing
patternContactDetail			ContactDetail
patternContributor			Contributor
patternDataRequirement			DataRequirement
patternExpression			Expression
patternParameterDefinition			ParameterDefinition
patternRelatedArtifact			RelatedArtifact
patternTriggerDefinition			TriggerDefinition
patternUsageContext			UsageContext
patternDosage			Dosage
patternMeta			Meta
example	Σ	0..*	Element	Example value (as defined for type)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
label	Σ	1..1	string	Describes the purpose of this example
value[x]	Σ	1..1		Value of Example (one of allowed types)
valueBase64Binary			base64Binary
valueBoolean			boolean
valueCanonical			canonical(Any)
valueCode			code
valueDate			date
valueDateTime			dateTime
valueDecimal			decimal
valueId			id
valueInstant			instant
valueInteger			integer
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
minValue[x]	Σ	0..1		Minimum Allowed Value (for some types)
minValueDate			date
minValueDateTime			dateTime
minValueInstant			instant
minValueTime			time
minValueDecimal			decimal
minValueInteger			integer
minValuePositiveInt			positiveInt
minValueUnsignedInt			unsignedInt
minValueQuantity			Quantity
maxValue[x]	Σ	0..1		Maximum Allowed Value (for some types)
maxValueDate			date
maxValueDateTime			dateTime
maxValueInstant			instant
maxValueTime			time
maxValueDecimal			decimal
maxValueInteger			integer
maxValuePositiveInt			positiveInt
maxValueUnsignedInt			unsignedInt
maxValueQuantity			Quantity
maxLength	Σ	0..1	integer	Max length for strings
condition	Σ	0..*	id	Reference to invariant about presence
constraint	ΣC	0..*	Element	Condition that must evaluate to true Constraints: eld-21
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
key	ΣC	1..1	id	Target of 'condition' reference above
requirements	Σ	0..1	string	Why this constraint is necessary or appropriate
severity	Σ	1..1	code	error | warning Binding: ConstraintSeverity (required): SHALL applications comply with this constraint?
human	Σ	1..1	string	Human description of constraint
expression	Σ	0..1	string	FHIRPath expression of constraint
xpath	Σ	0..1	string	XPath expression of constraint
source	Σ	0..1	canonical(StructureDefinition)	Reference to original source of constraint
mustSupport	Σ	0..1	boolean	If the element must be supported
isModifier	Σ	0..1	boolean	If this modifies the meaning of other elements
isModifierReason	Σ	0..1	string	Reason that this element is marked as a modifier
isSummary	Σ	0..1	boolean	Include when _summary = true?
binding	ΣC	0..1	Element	ValueSet details if this is coded Constraints: eld-12
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
strength	Σ	1..1	code	required | extensible | preferred | example Binding: BindingStrength (required): Indication of the degree of conformance expectations associated with a binding.
description	Σ	0..1	string	Human explanation of the value set
valueSet	ΣC	0..1	canonical(ValueSet)	Source of value set
mapping	Σ	0..*	Element	Map element to another set of definitions
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
identity	Σ	1..1	id	Reference to mapping declaration
language	Σ	0..1	code	Computable language of mapping Binding: Mime Types (required): The mime type of an attachment. Any valid mime type is allowed.
map	Σ	1..1	string	Details of the mapping
comment	Σ	0..1	string	Comments about the mapping or its use
Documentation for this format

Terminology Bindings

Path	Status	Usage	ValueSet	Version	Source
StructureDefinition.​language	Base	preferred	Common Languages	📍4.0.1	FHIR Std.
StructureDefinition.​status	Base	required	PublicationStatus	📍4.0.1	FHIR Std.
StructureDefinition.​jurisdiction	Base	extensible	Jurisdiction	📍4.0.1	FHIR Std.
StructureDefinition.​keyword	Base	extensible	Structure Definition Use Codes / Keywords	📍4.0.1	FHIR Std.
StructureDefinition.​fhirVersion	Base	required	FHIRVersion	📍4.0.1	FHIR Std.
StructureDefinition.​kind	Base	required	StructureDefinitionKind	📍4.0.1	FHIR Std.
StructureDefinition.​context.type	Base	required	ExtensionContextType	📍4.0.1	FHIR Std.
StructureDefinition.​type	Base	extensible	FHIRDefinedType	📍4.0.1	FHIR Std.
StructureDefinition.​derivation	Base	required	TypeDerivationRule	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​representation	Base	required	PropertyRepresentation	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:smart	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:loinc	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:snomed	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:icd-10	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:icd-11	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:icf	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:ichi	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:snomed-gps	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​code:atc	Base	example	LOINC Codes	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​slicing.discriminator.​type	Base	required	DiscriminatorType	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​slicing.rules	Base	required	SlicingRules	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​type.code	Base	extensible	FHIRDefinedType	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​type.aggregation	Base	required	AggregationMode	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​type.versioning	Base	required	ReferenceVersionRules	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​constraint.severity	Base	required	ConstraintSeverity	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​binding.strength	Base	required	BindingStrength	📍4.0.1	FHIR Std.
StructureDefinition.​differential.element.​mapping.language	Base	required	MimeType	📍4.0.1	FHIR Std.

Constraints

Id	Grade	Path(s)	Description	Expression
dom-2	error	StructureDefinition	If the resource is contained in another resource, it SHALL NOT contain nested Resources	contained.contained.empty()
dom-3	error	StructureDefinition	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource	contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	StructureDefinition	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated	contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	StructureDefinition	If a resource is contained in another resource, it SHALL NOT have a security label	contained.meta.security.empty()
dom-6	best practice	StructureDefinition	A resource should have narrative for robust management	text.`div`.exists()
eld-1	error	StructureDefinition.differential.element.slicing	If there are no discriminators, there must be a definition	discriminator.exists() or description.exists()
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children	hasValue() or (children().count() > id.count())
eld-3	error	StructureDefinition.differential.element.max	Max SHALL be a number or "*"	empty() or ($this = '*') or (toInteger() >= 0)
eld-4	error	StructureDefinition.differential.element.type	Aggregation may only be specified if one of the allowed types for the element is a reference	aggregation.empty() or (code = 'Reference') or (code = 'canonical')
eld-12	error	StructureDefinition.differential.element.binding	ValueSet SHALL start with http:// or https:// or urn:	valueSet.exists() implies (valueSet.startsWith('http:') or valueSet.startsWith('https') or valueSet.startsWith('urn:'))
eld-17	error	StructureDefinition.differential.element.type	targetProfile is only allowed if the type is Reference or canonical	(code='Reference' or code = 'canonical') or targetProfile.empty()
eld-21	warning	StructureDefinition.differential.element.constraint	Constraints should have an expression or else validators will not be able to enforce them	expression.exists()
ext-1	error	**ALL** extensions	Must have either extensions or value[x], not both	extension.exists() != value.exists()
sdf-0	warning	StructureDefinition	Name should be usable as an identifier for the module by machine processing applications such as code generation	name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
sdf-1	error	StructureDefinition	Element paths must be unique unless the structure is a constraint	derivation = 'constraint' or snapshot.element.select(path).isDistinct()
sdf-15a	error	StructureDefinition	If the first element in a differential has no "." in the path and it's not a logical model, it has no type Requirements: No Type on the root element (differential)	(kind!='logical' and differential.element.first().path.contains('.').not()) implies differential.element.first().type.empty()
sdf-2	error	StructureDefinition.mapping	Must have at least a name or a uri (or both)	name.exists() or uri.exists()
sdf-3	error	StructureDefinition.snapshot	Each element definition in a snapshot must have a formal definition and cardinalities	element.all(definition.exists() and min.exists() and max.exists())
sdf-4	error	StructureDefinition	If the structure is not abstract, then there SHALL be a baseDefinition Requirements: Ensure that the base types are abstract	abstract = true or baseDefinition.exists()
sdf-5	error	StructureDefinition	If the structure defines an extension then the structure must have context information	type != 'Extension' or derivation = 'specialization' or (context.exists())
sdf-6	error	StructureDefinition	A structure must have either a differential, or a snapshot (or both)	snapshot.exists() or differential.exists()
sdf-8	error	StructureDefinition.snapshot	All snapshot elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models	(%resource.kind = 'logical' or element.first().path = %resource.type) and element.tail().all(path.startsWith(%resource.snapshot.element.first().path&'.'))
sdf-10	error	StructureDefinition.snapshot.element	provide either a binding reference or a description (or both) Requirements: binding is required	binding.empty() or binding.valueSet.exists() or binding.description.exists()
sdf-11	error	StructureDefinition	If there's a type, its content must match the path name in the first element of a snapshot Requirements: Ensure that the type is not inconsistent with the other information in the structure	kind != 'logical' implies snapshot.empty() or snapshot.element.first().path = type
sdf-14	error	StructureDefinition	All element definitions must have an id Requirements: elements have id	snapshot.element.all(id.exists()) and differential.element.all(id.exists())
sdf-15	error	StructureDefinition	The first element in a snapshot has no type unless model is a logical model. Requirements: No Type on the root element (snapshot)	kind!='logical' implies snapshot.element.first().type.empty()
sdf-16	error	StructureDefinition	All element definitions must have unique ids (snapshot) Requirements: element ids need to be unique	snapshot.element.all(id.exists()) and snapshot.element.id.trace('ids').isDistinct()
sdf-17	error	StructureDefinition	All element definitions must have unique ids (diff) Requirements: element ids need to be unique	differential.element.all(id.exists()) and differential.element.id.trace('ids').isDistinct()
sdf-18	error	StructureDefinition	Context Invariants can only be used for extensions Requirements: contextInvariant	contextInvariant.exists() implies type = 'Extension'
sdf-8a	error	StructureDefinition.differential	In any differential, all the elements must start with the StructureDefinition's specified type for non-logical models, or with the same type name for logical models	(%resource.kind = 'logical' or element.first().path.startsWith(%resource.type)) and (element.tail().empty() or element.tail().all(path.startsWith(%resource.differential.element.first().path.replaceMatches('\\..*','')&'.')))
sdf-9	error	StructureDefinition	In any snapshot or differential, no label, code or requirements on an element without a "." in the path (e.g. the first element) Requirements: Because these 3 fields seem to be have overlapping meaning with the ones in the root of StructureDefinition	children().element.where(path.contains('.').not()).label.empty() and children().element.where(path.contains('.').not()).code.empty() and children().element.where(path.contains('.').not()).requirements.empty()
sdf-19	error	StructureDefinition	FHIR Specification models only use FHIR defined types Requirements: custom types only in logical models	url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (differential.element.type.code.all(matches('^[a-zA-Z0-9]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')) and snapshot.element.type.code.all(matches('^[a-zA-Z0-9\\.]+$') or matches('^http:\\/\\/hl7\\.org\\/fhirpath\\/System\\.[A-Z][A-Za-z]+$')))
sdf-20	error	StructureDefinition.differential	No slicing on the root element Requirements: no slicing on root	element.where(path.contains('.').not()).slicing.empty()
sdf-21	error	StructureDefinition	Default values can only be specified on specializations Requirements: no default values on data types or resources	differential.element.defaultValue.exists() implies (derivation = 'specialization')
sdf-22	error	StructureDefinition	FHIR Specification models never have default values Requirements: no default values on data types or resources	url.startsWith('http://hl7.org/fhir/StructureDefinition') implies (snapshot.element.defaultValue.empty() and differential.element.defaultValue.empty())
sdf-23	error	StructureDefinition	No slice name on root Requirements: no sliceName on root	(snapshot | differential).element.all(path.contains('.').not() implies sliceName.empty())
sdf-8b	error	StructureDefinition.snapshot	All snapshot elements must have a base definition	element.all(base.exists())

This structure is derived from StructureDefinition

Summary

Mandatory: 3 elements(14 nested mandatory elements)
Must-Support: 9 elements

Slices

This structure defines the following Slices:

• The element 1 is sliced based on the value of StructureDefinition.differential.element.code