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| FHIR Infrastructure Work Group | Maturity Level : N/A |
|
Raw JSON ( canonical form + also see JSON Format Specification )
nullFlavor
{
"resourceType": "StructureDefinition",
"id": "iso21090-nullFlavor",
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "fhir"
"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" : "4.0.1",
"name" : "nullFlavor",
"status" : "draft",
"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" : "4.0.1",
"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" : "*"
},
"condition" : ["ele-1"],
"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"
}]
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger": 1
}
],
"url": "http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor",
"name": "nullFlavor",
"status": "draft",
"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": "3.0.2",
"mapping": [
{
"identity": "v2",
"uri": "http://hl7.org/v2",
"name": "HL7 v2 Mapping"
"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" : "string"
}],
"code" : "http://hl7.org/fhirpath/System.String"
}],
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "n/a"
}]
},
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "complex-type",
"abstract": false,
"contextType": "datatype",
"context": [
"Any"
],
"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": "*"
},
"condition": [
"ele-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() | (children().count() > id.count())",
"xpath": "@value|f:*|h:div",
"source": "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": "Extension"
}
],
"mapping": [
{
"identity": "v2",
"map": "n/a"
},
{
"identity": "rim",
"map": "ANY.nullFlavor"
}
]
"id" : "Extension.extension",
"path" : "Extension.extension",
"slicing" : {
"discriminator" : [{
"type" : "value",
"path" : "url"
}],
"description" : "Extensions are always sliced by (at least) url",
"rules" : "open"
},
{
"id": "Extension.id",
"path": "Extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
"short" : "Extension",
"definition" : "An Extension",
"min" : 0,
"max" : "0",
"base" : {
"path" : "Element.extension",
"min" : 0,
"max" : "*"
},
{
"id": "Extension.extension",
"path": "Extension.extension",
"slicing": {
"discriminator": [
{
"type": "value",
"path": "url"
}
],
"description": "Extensions are always sliced by (at least) url",
"rules": "open"
},
"short": "Additional Content defined by implementations",
"definition": "May be used to represent additional information that is not part of the basic definition of the element. In order 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 is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
"comment": "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.",
"alias": [
"extensions",
"user content"
],
"min": 0,
"max": "*",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
"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"
},
{
"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": [
{
"code": "uri"
}
],
"fixedUri": "http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
"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"
},
{
"id": "Extension.valueCode",
"path": "Extension.valueCode",
"short": "Value of extension",
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "code"
}
],
"binding": {
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString": "NullFlavor"
}
],
"strength": "required",
"description": "A collection of codes specifying why a valid value is not present",
"valueSetReference": {
"reference": "http://hl7.org/fhir/ValueSet/v3-NullFlavor"
}
},
"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"
}
]
"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](http://hl7.org/fhir/extensibility.html) for a list).",
"min" : 1,
"max" : "1",
"base" : {
"path" : "Extension.value[x]",
"min" : 0,
"max" : "1"
},
{
"id": "Extension.extension",
"path": "Extension.extension",
"max": "0"
"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/StructureDefinition/elementdefinition-bindingName",
"valueString" : "NullFlavor"
}],
"strength" : "required",
"description" : "A collection of codes specifying why a valid value is not present.",
"valueSet" : "http://terminology.hl7.org/ValueSet/v3-NullFlavor|4.0.1"
},
{
"id": "Extension.url",
"path": "Extension.url",
"type": [
{
"code": "uri"
}
],
"fixedUri": "http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor"
"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"
},
{
"id": "Extension.valueCode",
"path": "Extension.valueCode",
"type": [
{
"code": "code"
}
],
"binding": {
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString": "NullFlavor"
}
],
"strength": "required",
"description": "A collection of codes specifying why a valid value is not present",
"valueSetReference": {
"reference": "http://hl7.org/fhir/ValueSet/v3-NullFlavor"
}
}
"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/StructureDefinition/elementdefinition-bindingName",
"valueString" : "NullFlavor"
}],
"strength" : "required",
"description" : "A collection of codes specifying why a valid value is not present.",
"valueSet" : "http://terminology.hl7.org/ValueSet/v3-NullFlavor|4.0.1"
}
]
}]
}
}
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.
®©
HL7.org
2011+.
FHIR
Release
3
(STU;
v3.0.2-11200)
4
(Technical
Correction
#1)
(v4.0.1)
generated
on
Thurs,
Oct
24,
Fri,
Nov
1,
2019
11:53+1100.
09:33+1100.
QA
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