This page is part of the FHIR Specification (v1.8.0: STU 3 Draft). The current version which supercedes this version is 4.0.1. For a full list of available versions, see the Directory of published versions 
ShEx statement for UsageContext
PREFIX fhir: <http://hl7.org/fhir/>
PREFIX fhirvs: <http://hl7.org/fhir/ValueSet/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
BASE <http://hl7.org/fhir/shape/>
# Describes the context of use for a conformance or knowledge resource
<UsageContext> CLOSED {
fhir:Element.id @<string>?; # xml:id (or equivalent in JSON)
fhir:extension @<Extension>*; # Additional Content defined by
# implementations
fhir:UsageContext.code @<Coding>; # Type of context being specified
( # Value that defines the context
fhir:UsageContext.valueCodeableConcept @<CodeableConcept> |
fhir:UsageContext.valueQuantity @<Quantity> |
fhir:UsageContext.valueRange @<Range>
);
fhir:index xsd:integer? # Relative position in a list
}
#---------------------- Data Types -------------------
<Extension> {fhir:extension @<Extension>*;
fhir:index xsd:integer?
}
# Primitive Type string
<string> CLOSED {
fhir:Element.id @<id>?; # xml:id (or equivalent in JSON)
fhir:extension @<Extension>*; # Additional Content defined by
# implementations
fhir:value xsd:string MAXLENGTH 1048576?; # Primitive value for string
fhir:index xsd:integer? # Relative position in a list
}
# A reference to a code defined by a terminology system
<Coding> CLOSED {
fhir:concept IRI?;
fhir:Element.id @<string>?; # xml:id (or equivalent in JSON)
fhir:extension @<Extension>*; # Additional Content defined by
# implementations
fhir:Coding.system @<uri>?; # Identity of the terminology system
fhir:Coding.version @<string>?; # Version of the system - if relevant
fhir:Coding.code @<code>?; # Symbol in syntax defined by the
# system
fhir:Coding.display @<string>?; # Representation defined by the
# system
fhir:Coding.userSelected @<boolean>?; # If this coding was chosen directly
# by the user
fhir:index xsd:integer? # Relative position in a list
}
# A measured or measurable amount
<Quantity> CLOSED {
fhir:Element.id @<string>?; # xml:id (or equivalent in JSON)
fhir:extension @<Extension>*; # Additional Content defined by
# implementations
fhir:Quantity.value @<decimal>?; # Numerical value (with implicit
# precision)
fhir:Quantity.comparator @<code> AND
{fhir:value @fhirvs:quantity-comparator}?; # < | <= | >= | > - how to
# understand the value
fhir:Quantity.unit @<string>?; # Unit representation
fhir:Quantity.system @<uri>?; # System that defines coded unit form
fhir:Quantity.code @<code>?; # Coded form of the unit
fhir:index xsd:integer? # Relative position in a list
}
# Set of values bounded by low and high
<Range> CLOSED {
fhir:Element.id @<string>?; # xml:id (or equivalent in JSON)
fhir:extension @<Extension>*; # Additional Content defined by
# implementations
fhir:Range.low @<SimpleQuantity>?; # Low limit
fhir:Range.high @<SimpleQuantity>?; # High limit
fhir:index xsd:integer? # Relative position in a list
}
# Concept - reference to a terminology or just text
<CodeableConcept> CLOSED {
fhir:concept IRI*;
fhir:Element.id @<string>?; # xml:id (or equivalent in JSON)
fhir:extension @<Extension>*; # Additional Content defined by
# implementations
fhir:CodeableConcept.coding @<Coding>*; # Code defined by a terminology
# system
fhir:CodeableConcept.text @<string>?; # Plain text representation of the
# concept
fhir:index xsd:integer? # Relative position in a list
}
# Primitive Type code
<code> CLOSED {
fhir:extension @<Extension>*; # Additional Content defined by
# implementations
fhir:value xsd:string?; # Primitive value for code
fhir:index xsd:integer? # Relative position in a list
}
# A fixed quantity (no comparator)
<SimpleQuantity> CLOSED {
fhir:Element.id @<string>?; # xml:id (or equivalent in JSON)
fhir:extension @<Extension>*; # Additional Content defined by
# implementations
fhir:Quantity.value @<decimal>?; # Numerical value (with implicit
# precision)
fhir:Quantity.unit @<string>?; # Unit representation
fhir:Quantity.system @<uri>?; # System that defines coded unit form
fhir:Quantity.code @<code>?; # Coded form of the unit
fhir:index xsd:integer? # Relative position in a list
}
# Primitive Type uri
<uri> CLOSED {
fhir:Element.id @<id>?; # xml:id (or equivalent in JSON)
fhir:extension @<Extension>*; # Additional Content defined by
# implementations
fhir:value xsd:string?; # Primitive value for uri
fhir:index xsd:integer? # Relative position in a list
}
# Primitive Type boolean
<boolean> CLOSED {
fhir:Element.id @<id>?; # xml:id (or equivalent in JSON)
fhir:extension @<Extension>*; # Additional Content defined by
# implementations
fhir:value xsd:boolean?; # Primitive value for boolean
fhir:index xsd:integer? # Relative position in a list
}
# Primitive Type id
<id> CLOSED {
fhir:extension @<Extension>*; # Additional Content defined by
# implementations
fhir:value xsd:string?; # Primitive value for id
fhir:index xsd:integer? # Relative position in a list
}
# Primitive Type decimal
<decimal> CLOSED {
fhir:Element.id @<id>?; # xml:id (or equivalent in JSON)
fhir:extension @<Extension>*; # Additional Content defined by
# implementations
fhir:value xsd:decimal?; # Primitive value for decimal
fhir:index xsd:integer? # Relative position in a list
}
#---------------------- Reference Types -------------------
#---------------------- Value Sets ------------------------
# How the Quantity should be understood and represented.
fhirvs:quantity-comparator ["<" "<=" ">=" ">"]
Usage note: every effort has been made to ensure that the ShEx files are correct and useful, but they are not a normative part of the specification.