Release 4B
TerminologyThis page is part of the FHIR Specification (v4.3.0: R4B - STU). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions 
. Page versions: R4B R4 R3
| Vocabulary Work Group | Maturity Level: N/A | Standards Status: Informative |
Raw JSON (canonical form + also see JSON Format Specification)
history
{
"resourceType" : "StructureDefinition",
"id" : "codesystem-history",
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode" : "vocab"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger" : 1
}],
"url" : "http://hl7.org/fhir/StructureDefinition/codesystem-history",
"version" : "4.3.0",
"name" : "history",
"status" : "draft",
"experimental" : false,
"date" : "2021-01-17T07:06:13+11:00",
"publisher" : "HL7",
"description" : "Information on changes made to the Value Set Definition over time, and also has a contained audit trail of all such changes.",
"fhirVersion" : "4.3.0",
"mapping" : [{
"identity" : "rim",
"uri" : "http://hl7.org/v3",
"name" : "RIM Mapping"
}],
"kind" : "complex-type",
"abstract" : false,
"context" : [{
"type" : "element",
"expression" : "CodeSystem"
}],
"type" : "Extension",
"baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
"derivation" : "constraint",
"snapshot" : {
"element" : [{
"id" : "Extension",
"path" : "Extension",
"short" : "What has happened over time",
"definition" : "Information on changes made to the Value Set Definition over time, and also has a contained audit trail of all such changes.",
"min" : 0,
"max" : "*",
"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 unless an empty Parameters resource",
"expression" : "hasValue() or (children().count() > id.count()) or $this is Parameters",
"xpath" : "@value|f:*|h:div|self::f:Parameters",
"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
},
{
"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" : "Additional content defined by implementations",
"definition" : "May be used to represent additional information that is not part of the basic definition of the element. 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.",
"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"
}],
"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,
"mapping" : [{
"identity" : "rim",
"map" : "n/a"
}]
},
{
"id" : "Extension.extension:name",
"path" : "Extension.extension",
"sliceName" : "name",
"short" : "The name of this set of history entries",
"definition" : "Label for a set of entries, such as a version.",
"comment" : "Typically, a value set will have a set of history entries for each major publication milestone.",
"min" : 0,
"max" : "1",
"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.extension:name.id",
"path" : "Extension.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:name.extension",
"path" : "Extension.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.extension:name.url",
"path" : "Extension.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" : "name",
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "Extension.extension:name.value[x]",
"path" : "Extension.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" : "string"
}],
"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,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "Extension.extension:revision",
"path" : "Extension.extension",
"sliceName" : "revision",
"short" : "Audit of all changes for a history entry",
"definition" : "A list of specific changes, who made them and when.",
"min" : 0,
"max" : "*",
"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.extension:revision.id",
"path" : "Extension.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:revision.extension",
"path" : "Extension.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.extension:revision.extension:date",
"path" : "Extension.extension.extension",
"sliceName" : "date",
"short" : "Date the change was made",
"definition" : "Date the change took place.",
"min" : 1,
"max" : "1",
"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.extension:revision.extension:date.id",
"path" : "Extension.extension.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:revision.extension:date.extension",
"path" : "Extension.extension.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.extension:revision.extension:date.url",
"path" : "Extension.extension.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" : "date",
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "Extension.extension:revision.extension:date.value[x]",
"path" : "Extension.extension.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" : "dateTime"
}],
"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,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "Extension.extension:revision.extension:id",
"path" : "Extension.extension.extension",
"sliceName" : "id",
"short" : "Version marker after the change was made",
"definition" : "Unique id for the specific change.",
"min" : 1,
"max" : "1",
"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.extension:revision.extension:id.id",
"path" : "Extension.extension.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:revision.extension:id.extension",
"path" : "Extension.extension.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.extension:revision.extension:id.url",
"path" : "Extension.extension.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" : "id",
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "Extension.extension:revision.extension:id.value[x]",
"path" : "Extension.extension.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" : "string"
}],
"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,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "Extension.extension:revision.extension:author",
"path" : "Extension.extension.extension",
"sliceName" : "author",
"short" : "Who made the change",
"definition" : "Person or device responsible for the change.",
"min" : 1,
"max" : "1",
"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.extension:revision.extension:author.id",
"path" : "Extension.extension.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:revision.extension:author.extension",
"path" : "Extension.extension.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.extension:revision.extension:author.url",
"path" : "Extension.extension.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" : "author",
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "Extension.extension:revision.extension:author.value[x]",
"path" : "Extension.extension.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" : "string"
}],
"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,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "Extension.extension:revision.extension:notes",
"path" : "Extension.extension.extension",
"sliceName" : "notes",
"short" : "Information about the change",
"definition" : "Description of exactly what was changed and how.",
"min" : 0,
"max" : "1",
"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.extension:revision.extension:notes.id",
"path" : "Extension.extension.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:revision.extension:notes.extension",
"path" : "Extension.extension.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.extension:revision.extension:notes.url",
"path" : "Extension.extension.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" : "notes",
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "Extension.extension:revision.extension:notes.value[x]",
"path" : "Extension.extension.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" : "string"
}],
"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,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "Extension.extension:revision.url",
"path" : "Extension.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" : "revision",
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "Extension.extension:revision.value[x]",
"path" : "Extension.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" : 0,
"max" : "0",
"base" : {
"path" : "Extension.value[x]",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "base64Binary"
},
{
"code" : "boolean"
},
{
"code" : "canonical"
},
{
"code" : "code"
},
{
"code" : "date"
},
{
"code" : "dateTime"
},
{
"code" : "decimal"
},
{
"code" : "id"
},
{
"code" : "instant"
},
{
"code" : "integer"
},
{
"code" : "markdown"
},
{
"code" : "oid"
},
{
"code" : "positiveInt"
},
{
"code" : "string"
},
{
"code" : "time"
},
{
"code" : "unsignedInt"
},
{
"code" : "uri"
},
{
"code" : "url"
},
{
"code" : "uuid"
},
{
"code" : "Address"
},
{
"code" : "Age"
},
{
"code" : "Annotation"
},
{
"code" : "Attachment"
},
{
"code" : "CodeableConcept"
},
{
"code" : "CodeableReference"
},
{
"code" : "Coding"
},
{
"code" : "ContactPoint"
},
{
"code" : "Count"
},
{
"code" : "Distance"
},
{
"code" : "Duration"
},
{
"code" : "HumanName"
},
{
"code" : "Identifier"
},
{
"code" : "Money"
},
{
"code" : "Period"
},
{
"code" : "Quantity"
},
{
"code" : "Range"
},
{
"code" : "Ratio"
},
{
"code" : "RatioRange"
},
{
"code" : "Reference"
},
{
"code" : "SampledData"
},
{
"code" : "Signature"
},
{
"code" : "Timing"
},
{
"code" : "ContactDetail"
},
{
"code" : "Contributor"
},
{
"code" : "DataRequirement"
},
{
"code" : "Expression"
},
{
"code" : "ParameterDefinition"
},
{
"code" : "RelatedArtifact"
},
{
"code" : "TriggerDefinition"
},
{
"code" : "UsageContext"
},
{
"code" : "Dosage"
}],
"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,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"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/codesystem-history",
"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" : 0,
"max" : "0",
"base" : {
"path" : "Extension.value[x]",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "base64Binary"
},
{
"code" : "boolean"
},
{
"code" : "canonical"
},
{
"code" : "code"
},
{
"code" : "date"
},
{
"code" : "dateTime"
},
{
"code" : "decimal"
},
{
"code" : "id"
},
{
"code" : "instant"
},
{
"code" : "integer"
},
{
"code" : "markdown"
},
{
"code" : "oid"
},
{
"code" : "positiveInt"
},
{
"code" : "string"
},
{
"code" : "time"
},
{
"code" : "unsignedInt"
},
{
"code" : "uri"
},
{
"code" : "url"
},
{
"code" : "uuid"
},
{
"code" : "Address"
},
{
"code" : "Age"
},
{
"code" : "Annotation"
},
{
"code" : "Attachment"
},
{
"code" : "CodeableConcept"
},
{
"code" : "CodeableReference"
},
{
"code" : "Coding"
},
{
"code" : "ContactPoint"
},
{
"code" : "Count"
},
{
"code" : "Distance"
},
{
"code" : "Duration"
},
{
"code" : "HumanName"
},
{
"code" : "Identifier"
},
{
"code" : "Money"
},
{
"code" : "Period"
},
{
"code" : "Quantity"
},
{
"code" : "Range"
},
{
"code" : "Ratio"
},
{
"code" : "RatioRange"
},
{
"code" : "Reference"
},
{
"code" : "SampledData"
},
{
"code" : "Signature"
},
{
"code" : "Timing"
},
{
"code" : "ContactDetail"
},
{
"code" : "Contributor"
},
{
"code" : "DataRequirement"
},
{
"code" : "Expression"
},
{
"code" : "ParameterDefinition"
},
{
"code" : "RelatedArtifact"
},
{
"code" : "TriggerDefinition"
},
{
"code" : "UsageContext"
},
{
"code" : "Dosage"
}],
"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,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
}]
},
"differential" : {
"element" : [{
"id" : "Extension",
"path" : "Extension",
"short" : "What has happened over time",
"definition" : "Information on changes made to the Value Set Definition over time, and also has a contained audit trail of all such changes.",
"min" : 0,
"max" : "*",
"isModifier" : false
},
{
"id" : "Extension.extension:name",
"path" : "Extension.extension",
"sliceName" : "name",
"short" : "The name of this set of history entries",
"definition" : "Label for a set of entries, such as a version.",
"comment" : "Typically, a value set will have a set of history entries for each major publication milestone.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "Extension"
}],
"isModifier" : false
},
{
"id" : "Extension.extension:name.extension",
"path" : "Extension.extension.extension",
"max" : "0"
},
{
"id" : "Extension.extension:name.url",
"path" : "Extension.extension.url",
"type" : [{
"code" : "uri"
}],
"fixedUri" : "name"
},
{
"id" : "Extension.extension:name.value[x]",
"path" : "Extension.extension.value[x]",
"min" : 1,
"type" : [{
"code" : "string"
}]
},
{
"id" : "Extension.extension:revision",
"path" : "Extension.extension",
"sliceName" : "revision",
"short" : "Audit of all changes for a history entry",
"definition" : "A list of specific changes, who made them and when.",
"min" : 0,
"max" : "*",
"type" : [{
"code" : "Extension"
}],
"isModifier" : false
},
{
"id" : "Extension.extension:revision.extension",
"path" : "Extension.extension.extension",
"max" : "0"
},
{
"id" : "Extension.extension:revision.extension:date",
"path" : "Extension.extension.extension",
"sliceName" : "date",
"short" : "Date the change was made",
"definition" : "Date the change took place.",
"min" : 1,
"max" : "1",
"type" : [{
"code" : "Extension"
}],
"isModifier" : false
},
{
"id" : "Extension.extension:revision.extension:date.extension",
"path" : "Extension.extension.extension.extension",
"max" : "0"
},
{
"id" : "Extension.extension:revision.extension:date.url",
"path" : "Extension.extension.extension.url",
"type" : [{
"code" : "uri"
}],
"fixedUri" : "date"
},
{
"id" : "Extension.extension:revision.extension:date.value[x]",
"path" : "Extension.extension.extension.value[x]",
"min" : 1,
"type" : [{
"code" : "dateTime"
}]
},
{
"id" : "Extension.extension:revision.extension:id",
"path" : "Extension.extension.extension",
"sliceName" : "id",
"short" : "Version marker after the change was made",
"definition" : "Unique id for the specific change.",
"min" : 1,
"max" : "1",
"type" : [{
"code" : "Extension"
}],
"isModifier" : false
},
{
"id" : "Extension.extension:revision.extension:id.extension",
"path" : "Extension.extension.extension.extension",
"max" : "0"
},
{
"id" : "Extension.extension:revision.extension:id.url",
"path" : "Extension.extension.extension.url",
"type" : [{
"code" : "uri"
}],
"fixedUri" : "id"
},
{
"id" : "Extension.extension:revision.extension:id.value[x]",
"path" : "Extension.extension.extension.value[x]",
"min" : 1,
"type" : [{
"code" : "string"
}]
},
{
"id" : "Extension.extension:revision.extension:author",
"path" : "Extension.extension.extension",
"sliceName" : "author",
"short" : "Who made the change",
"definition" : "Person or device responsible for the change.",
"min" : 1,
"max" : "1",
"type" : [{
"code" : "Extension"
}],
"isModifier" : false
},
{
"id" : "Extension.extension:revision.extension:author.extension",
"path" : "Extension.extension.extension.extension",
"max" : "0"
},
{
"id" : "Extension.extension:revision.extension:author.url",
"path" : "Extension.extension.extension.url",
"type" : [{
"code" : "uri"
}],
"fixedUri" : "author"
},
{
"id" : "Extension.extension:revision.extension:author.value[x]",
"path" : "Extension.extension.extension.value[x]",
"min" : 1,
"type" : [{
"code" : "string"
}]
},
{
"id" : "Extension.extension:revision.extension:notes",
"path" : "Extension.extension.extension",
"sliceName" : "notes",
"short" : "Information about the change",
"definition" : "Description of exactly what was changed and how.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "Extension"
}],
"isModifier" : false
},
{
"id" : "Extension.extension:revision.extension:notes.extension",
"path" : "Extension.extension.extension.extension",
"max" : "0"
},
{
"id" : "Extension.extension:revision.extension:notes.url",
"path" : "Extension.extension.extension.url",
"type" : [{
"code" : "uri"
}],
"fixedUri" : "notes"
},
{
"id" : "Extension.extension:revision.extension:notes.value[x]",
"path" : "Extension.extension.extension.value[x]",
"min" : 1,
"type" : [{
"code" : "string"
}]
},
{
"id" : "Extension.extension:revision.url",
"path" : "Extension.extension.url",
"type" : [{
"code" : "uri"
}],
"fixedUri" : "revision"
},
{
"id" : "Extension.extension:revision.value[x]",
"path" : "Extension.extension.value[x]",
"min" : 0,
"max" : "0"
},
{
"id" : "Extension.url",
"path" : "Extension.url",
"fixedUri" : "http://hl7.org/fhir/StructureDefinition/codesystem-history"
},
{
"id" : "Extension.value[x]",
"path" : "Extension.value[x]",
"min" : 0,
"max" : "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.
FHIR ®© HL7.org 2011+. FHIR Release 4B (v4.3.0) hl7.fhir.r4b.core#4.3.0 generated on Sat, May 28, 2022 12:52+1000.
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