StructureDefinition
for
markdown
nullFlavor
<?xml version="1.0" encoding="UTF-8"?>
Base StructureDefinition for markdown type: A string that may contain Github Flavored
Markdown syntax for optional processing by a mark down presentation engine
A string that may contain Github Flavored Markdown syntax for optional processing by a
mark down presentation engine
Systems are not required to have markdown support, so the text should be readable without
markdown processing. The markdown syntax is GFM - see https://github.github.com/gfm/
<!-- Note: special primitive values have a FHIRPath system type. e.g. this is compiler magic
(h) -->
May be used to represent additional information that is not part of the basic definition
of the resource. To make the use of extensions safe and manageable, there is a strict
set of governance applied to the definition and use of extensions. Though any implementer
can define an extension, there is a set of requirements that SHALL be met as part of the
definition of the extension.
There can be no stigma associated with the use of extensions by any application, project,
or standard - regardless of the institution or jurisdiction that uses or defines the extensions.
The use of extensions is what allows the FHIR specification to retain a core level of
simplicity for everyone.
<!-- Note: special primitive values have a FHIRPath system type. e.g. this is compiler magic
(i) -->
A string that may contain Github Flavored Markdown syntax for optional processing by a
mark down presentation engine
Systems are not required to have markdown support, so the text should be readable without
markdown processing. The markdown syntax is GFM - see https://github.github.com/gfm/
<!-- Note: special primitive values have a FHIRPath system type. e.g. this is compiler magic
(g) -->
</
StructureDefinition
>
{
"resourceType" : "StructureDefinition",
"id" : "iso21090-nullFlavor",
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode" : "fhir"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger" : 1
}],
"url" : "http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor",
"version" : "5.0.0-ballot",
"name" : "nullFlavor",
"status" : "draft",
"experimental" : false,
"date" : "2012-06-24",
"publisher" : "Health Level Seven International (Modeling and Methodology)",
"contact" : [{
"telecom" : [{
"system" : "url",
"value" : "http://www.hl7.org/Special/committees/mnm"
}]
}],
"description" : "If the value is not a proper value, indicates the reason.",
"fhirVersion" : "5.0.0-ballot",
"mapping" : [{
"identity" : "v2",
"uri" : "http://hl7.org/v2",
"name" : "HL7 v2 Mapping"
},
{
"identity" : "rim",
"uri" : "http://hl7.org/v3",
"name" : "RIM Mapping"
}],
"kind" : "complex-type",
"abstract" : false,
"context" : [{
"type" : "element",
"expression" : "Element"
}],
"type" : "Extension",
"baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
"derivation" : "constraint",
"snapshot" : {
"element" : [{
"id" : "Extension",
"path" : "Extension",
"short" : "NI | OTH | NINF | PINF | UNK | ASKU | NAV | NASK | TRC | MSK | NA | QS",
"definition" : "If the value is not a proper value, indicates the reason.",
"comment" : "Considerable care must be used when using nullFlavor in this context of FHIR - more than any other concept, this is tied to the way v3 works, and FHIR is quite different. For instance, there is no notion of a \"proper value\" as opposed to any other value in FHIR. a NullFlavor should be understood to mean, \"why information is missing\", and the nulFlavors OTH, NINF, PINF, and TRC should not be used.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "Extension",
"min" : 0,
"max" : "*"
},
"constraint" : [{
"key" : "ele-1",
"severity" : "error",
"human" : "All FHIR elements must have a @value or children",
"expression" : "hasValue() or (children().count() > id.count())",
"xpath" : "@value|f:*|h:div",
"source" : "http://hl7.org/fhir/StructureDefinition/Element"
},
{
"key" : "ext-1",
"severity" : "error",
"human" : "Must have either extensions or value[x], not both",
"expression" : "extension.exists() != value.exists()",
"xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
"source" : "http://hl7.org/fhir/StructureDefinition/Extension"
}],
"isModifier" : false,
"mapping" : [{
"identity" : "v2",
"map" : "n/a"
},
{
"identity" : "rim",
"map" : "ANY.nullFlavor"
}]
},
{
"id" : "Extension.id",
"path" : "Extension.id",
"representation" : ["xmlAttr"],
"short" : "Unique id for inter-element referencing",
"definition" : "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "Element.id",
"min" : 0,
"max" : "1"
},
"type" : [{
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl" : "id"
}],
"code" : "http://hl7.org/fhirpath/System.String"
}],
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "n/a"
}]
},
{
"id" : "Extension.extension",
"path" : "Extension.extension",
"slicing" : {
"discriminator" : [{
"type" : "value",
"path" : "url"
}],
"description" : "Extensions are always sliced by (at least) url",
"rules" : "open"
},
"short" : "Extension",
"definition" : "An Extension",
"min" : 0,
"max" : "0",
"base" : {
"path" : "Element.extension",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "Extension"
}],
"constraint" : [{
"key" : "ele-1",
"severity" : "error",
"human" : "All FHIR elements must have a @value or children",
"expression" : "hasValue() or (children().count() > id.count())",
"xpath" : "@value|f:*|h:div",
"source" : "http://hl7.org/fhir/StructureDefinition/Element"
},
{
"key" : "ext-1",
"severity" : "error",
"human" : "Must have either extensions or value[x], not both",
"expression" : "extension.exists() != value.exists()",
"xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
"source" : "http://hl7.org/fhir/StructureDefinition/Extension"
}],
"isModifier" : false,
"isSummary" : false
},
{
"id" : "Extension.url",
"path" : "Extension.url",
"representation" : ["xmlAttr"],
"short" : "identifies the meaning of the extension",
"definition" : "Source of the definition for the extension code - a logical name or a URL.",
"comment" : "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
"min" : 1,
"max" : "1",
"base" : {
"path" : "Extension.url",
"min" : 1,
"max" : "1"
},
"type" : [{
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl" : "uri"
}],
"code" : "http://hl7.org/fhirpath/System.String"
}],
"fixedUri" : "http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor",
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "Extension.value[x]",
"path" : "Extension.value[x]",
"short" : "Value of extension",
"definition" : "Value of extension - must be one of a constrained set of the data types (see [Extensibility](extensibility.html) for a list).",
"min" : 1,
"max" : "1",
"base" : {
"path" : "Extension.value[x]",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "code"
}],
"constraint" : [{
"key" : "ele-1",
"severity" : "error",
"human" : "All FHIR elements must have a @value or children",
"expression" : "hasValue() or (children().count() > id.count())",
"xpath" : "@value|f:*|h:div",
"source" : "http://hl7.org/fhir/StructureDefinition/Element"
}],
"isModifier" : false,
"isSummary" : false,
"binding" : {
"extension" : [{
"url" : "http://hl7.org/fhir/build/StructureDefinition/binding-definition",
"valueString" : "A collection of codes specifying why a valid value is not present."
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString" : "NullFlavor"
}],
"strength" : "required",
"valueSet" : "http://terminology.hl7.org/ValueSet/v3-NullFlavor|2.0.0"
},
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
}]
},
"differential" : {
"element" : [{
"id" : "Extension",
"path" : "Extension",
"short" : "NI | OTH | NINF | PINF | UNK | ASKU | NAV | NASK | TRC | MSK | NA | QS",
"definition" : "If the value is not a proper value, indicates the reason.",
"comment" : "Considerable care must be used when using nullFlavor in this context of FHIR - more than any other concept, this is tied to the way v3 works, and FHIR is quite different. For instance, there is no notion of a \"proper value\" as opposed to any other value in FHIR. a NullFlavor should be understood to mean, \"why information is missing\", and the nulFlavors OTH, NINF, PINF, and TRC should not be used.",
"min" : 0,
"max" : "1",
"mapping" : [{
"identity" : "v2",
"map" : "n/a"
},
{
"identity" : "rim",
"map" : "ANY.nullFlavor"
}]
},
{
"id" : "Extension.extension",
"path" : "Extension.extension",
"max" : "0"
},
{
"id" : "Extension.url",
"path" : "Extension.url",
"fixedUri" : "http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor"
},
{
"id" : "Extension.value[x]",
"path" : "Extension.value[x]",
"min" : 1,
"type" : [{
"code" : "code"
}],
"binding" : {
"extension" : [{
"url" : "http://hl7.org/fhir/build/StructureDefinition/binding-definition",
"valueString" : "A collection of codes specifying why a valid value is not present."
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString" : "NullFlavor"
}],
"strength" : "required",
"valueSet" : "http://terminology.hl7.org/ValueSet/v3-NullFlavor|2.0.0"
}
}]
}
}
Usage
note:
every
effort
has
been
made
to
ensure
that
the
examples
are
correct
and
useful,
but
they
are
not
a
normative
part
of
the
specification.
Foundation
.
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