Release 4B Ballot #1
Clinical ReasoningThis page is part of the FHIR Specification (v4.1.0: Release 4B Ballot #1). 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: R5 R4B R4
| Clinical Decision Support Work Group | Maturity Level: N/A | Standards Status: Informative | Compartments: Not linked to any defined compartments |
Raw JSON (canonical form + also see JSON Format Specification)
StructureDefinition for evidencevariable
{
"resourceType" : "StructureDefinition",
"id" : "EvidenceVariable",
"meta" : {
"lastUpdated" : "2021-03-11T17:06:20.662+11:00"
},
"text" : {
"status" : "generated",
"div" : "<div>!-- Snipped for Brevity --></div>"
},
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-category",
"valueString" : "Specialized.Evidence-Based Medicine"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode" : "trial-use"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger" : 1
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-security-category",
"valueCode" : "business"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode" : "cds"
}],
"url" : "http://hl7.org/fhir/StructureDefinition/EvidenceVariable",
"version" : "4.1.0",
"name" : "EvidenceVariable",
"status" : "draft",
"date" : "2021-03-11T17:06:20+11:00",
"publisher" : "Health Level Seven International (Clinical Decision Support)",
"contact" : [{
"telecom" : [{
"system" : "url",
"value" : "http://hl7.org/fhir"
}]
},
{
"telecom" : [{
"system" : "url",
"value" : "http://www.hl7.org/Special/committees/dss/index.cfm"
}]
}],
"purpose" : "Need to be able to define and reuse the definition of individual elements of a research question.",
"fhirVersion" : "4.1.0",
"mapping" : [{
"identity" : "workflow",
"uri" : "http://hl7.org/fhir/workflow",
"name" : "Workflow Pattern"
},
{
"identity" : "w5",
"uri" : "http://hl7.org/fhir/fivews",
"name" : "FiveWs Pattern Mapping"
},
{
"identity" : "objimpl",
"uri" : "http://hl7.org/fhir/object-implementation",
"name" : "Object Implementation Information"
},
{
"identity" : "rim",
"uri" : "http://hl7.org/v3",
"name" : "RIM Mapping"
}],
"kind" : "resource",
"abstract" : false,
"type" : "EvidenceVariable",
"baseDefinition" : "http://hl7.org/fhir/StructureDefinition/DomainResource",
"derivation" : "specialization",
"snapshot" : {
"element" : [{
"id" : "EvidenceVariable",
"path" : "EvidenceVariable",
"short" : "A definition of an exposure, outcome, or other variable",
"definition" : "The EvidenceVariable resource describes an element that knowledge (Evidence) is about.",
"comment" : "The EvidenceVariable may be an exposure variable (intervention, condition, or state), a measured variable (outcome or observed parameter), or other variable (such as confounding factor).",
"min" : 0,
"max" : "*",
"base" : {
"path" : "EvidenceVariable",
"min" : 0,
"max" : "*"
},
"constraint" : [{
"key" : "cnl-0",
"severity" : "warning",
"human" : "Name should be usable as an identifier for the module by machine processing applications such as code generation",
"expression" : "name.matches('[A-Z]([A-Za-z0-9_]){0,254}')",
"xpath" : "not(exists(f:name/@value)) or matches(f:name/@value, '[A-Z]([A-Za-z0-9_]){0,254}')",
"source" : "http://hl7.org/fhir/StructureDefinition/EvidenceVariable"
},
{
"key" : "dom-2",
"severity" : "error",
"human" : "If the resource is contained in another resource, it SHALL NOT contain nested Resources",
"expression" : "contained.contained.empty()",
"xpath" : "not(parent::f:contained and f:contained)",
"source" : "http://hl7.org/fhir/StructureDefinition/DomainResource"
},
{
"key" : "dom-3",
"severity" : "error",
"human" : "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",
"expression" : "contained.where(((id.exists() and ('#'+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(uri) = '#').exists()).not()).trace('unmatched', id).empty()",
"xpath" : "not(exists(for $resource in . return (for $contained in $resource/f:contained return $contained[not(descendant::f:*/@value='#' or (exists(f:id) and $resource//f:*/@*=concat('#', $contained/*/f:id/@value)))])))",
"source" : "http://hl7.org/fhir/StructureDefinition/DomainResource"
},
{
"key" : "dom-4",
"severity" : "error",
"human" : "If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated",
"expression" : "contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()",
"xpath" : "not(exists(f:contained/*/f:meta/f:versionId)) and not(exists(f:contained/*/f:meta/f:lastUpdated))",
"source" : "http://hl7.org/fhir/StructureDefinition/DomainResource"
},
{
"key" : "dom-5",
"severity" : "error",
"human" : "If a resource is contained in another resource, it SHALL NOT have a security label",
"expression" : "contained.meta.security.empty()",
"xpath" : "not(exists(f:contained/*/f:meta/f:security))",
"source" : "http://hl7.org/fhir/StructureDefinition/DomainResource"
},
{
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice",
"valueBoolean" : true
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice-explanation",
"valueMarkdown" : "When a resource has no narrative, only systems that fully understand the data can display the resource to a human safely. Including a human readable representation in the resource makes for a much more robust eco-system and cheaper handling of resources by intermediary systems. Some ecosystems restrict distribution of resources to only those systems that do fully understand the resources, and as a consequence implementers may believe that the narrative is superfluous. However experience shows that such eco-systems often open up to new participants over time."
}],
"key" : "dom-6",
"severity" : "warning",
"human" : "A resource should have narrative for robust management",
"expression" : "text.`div`.exists()",
"xpath" : "exists(f:text/h:div)",
"source" : "http://hl7.org/fhir/StructureDefinition/DomainResource"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "Entity. Role, or Act"
},
{
"identity" : "workflow",
"map" : "Definition"
},
{
"identity" : "w5",
"map" : "clinical.general"
}]
},
{
"id" : "EvidenceVariable.id",
"path" : "EvidenceVariable.id",
"short" : "Logical id of this artifact",
"definition" : "The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.",
"comment" : "The only time that a resource does not have an id is when it is being submitted to the server using a create operation.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "Resource.id",
"min" : 0,
"max" : "1"
},
"type" : [{
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUri" : "id"
}],
"code" : "http://hl7.org/fhirpath/System.String"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true
},
{
"id" : "EvidenceVariable.meta",
"path" : "EvidenceVariable.meta",
"short" : "Metadata about the resource",
"definition" : "The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "Resource.meta",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "Meta"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true
},
{
"id" : "EvidenceVariable.implicitRules",
"path" : "EvidenceVariable.implicitRules",
"short" : "A set of rules under which this content was created",
"definition" : "A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.",
"comment" : "Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "Resource.implicitRules",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "uri"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : true,
"isModifierReason" : "This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation",
"isSummary" : true
},
{
"id" : "EvidenceVariable.language",
"path" : "EvidenceVariable.language",
"short" : "Language of the resource content",
"definition" : "The base language in which the resource is written.",
"comment" : "Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).",
"min" : 0,
"max" : "1",
"base" : {
"path" : "Resource.language",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"binding" : {
"extension" : [{
"url" : "http://hl7.org/fhir/build/StructureDefinition/definition",
"valueString" : "A human language."
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet",
"valueCanonical" : "http://hl7.org/fhir/ValueSet/all-languages"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString" : "Language"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding",
"valueBoolean" : true
}],
"strength" : "preferred",
"description" : "IETF language tag",
"valueSet" : "http://hl7.org/fhir/ValueSet/languages"
}
},
{
"id" : "EvidenceVariable.text",
"path" : "EvidenceVariable.text",
"short" : "Text summary of the resource, for human interpretation",
"definition" : "A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it \"clinically safe\" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.",
"comment" : "Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a \"text blob\" or where text is additionally entered raw or narrated and encoded information is added later.",
"alias" : ["narrative",
"html",
"xhtml",
"display"],
"min" : 0,
"max" : "1",
"base" : {
"path" : "DomainResource.text",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "Narrative"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "Act.text?"
}]
},
{
"id" : "EvidenceVariable.contained",
"path" : "EvidenceVariable.contained",
"short" : "Contained, inline Resources",
"definition" : "These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.",
"comment" : "This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.",
"alias" : ["inline resources",
"anonymous resources",
"contained resources"],
"min" : 0,
"max" : "*",
"base" : {
"path" : "DomainResource.contained",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "Resource"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "EvidenceVariable.extension",
"path" : "EvidenceVariable.extension",
"short" : "Additional content defined by implementations",
"definition" : "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.",
"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" : "DomainResource.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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "EvidenceVariable.modifierExtension",
"path" : "EvidenceVariable.modifierExtension",
"short" : "Extensions that cannot be ignored",
"definition" : "May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
"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.",
"requirements" : "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).",
"alias" : ["extensions",
"user content"],
"min" : 0,
"max" : "*",
"base" : {
"path" : "DomainResource.modifierExtension",
"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"
}],
"mustSupport" : false,
"isModifier" : true,
"isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them",
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "EvidenceVariable.url",
"path" : "EvidenceVariable.url",
"short" : "Canonical identifier for this evidence variable, represented as a URI (globally unique)",
"definition" : "An absolute URI that is used to identify this evidence variable when it is referenced in a specification, model, design or an instance; also called its canonical identifier. This SHOULD be globally unique and SHOULD be a literal address at which at which an authoritative instance of this evidence variable is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the evidence variable is stored on different servers.",
"comment" : "Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred. Multiple instances may share the same URL if they have a distinct version.\n\nThe determination of when to create a new version of a resource (same url, new version) vs. defining a new artifact is up to the author. Considerations for making this decision are found in [Technical and Business Versions](resource.html#versions). \n\nIn some cases, the resource can no longer be found at the stated url, but the url itself cannot change. Implementations can use the [meta.source](resource.html#meta) element to indicate where the current master source of the resource can be found.",
"requirements" : "Allows the evidence variable to be referenced by a single globally unique identifier.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.url",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "uri"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.url"
},
{
"identity" : "w5",
"map" : "FiveWs.identifier"
}]
},
{
"id" : "EvidenceVariable.identifier",
"path" : "EvidenceVariable.identifier",
"short" : "Additional identifier for the evidence variable",
"definition" : "A formal identifier that is used to identify this evidence variable when it is represented in other formats, or referenced in a specification, model, design or an instance.",
"comment" : "Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, and can then identify this evidence variable outside of FHIR, where it is not possible to use the logical URI.",
"requirements" : "Allows externally provided and/or usable business identifiers to be easily associated with the module.",
"min" : 0,
"max" : "*",
"base" : {
"path" : "EvidenceVariable.identifier",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "Identifier"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.identifier"
},
{
"identity" : "w5",
"map" : "FiveWs.identifier"
},
{
"identity" : "objimpl",
"map" : "no-gen-base"
}]
},
{
"id" : "EvidenceVariable.version",
"path" : "EvidenceVariable.version",
"short" : "Business version of the evidence variable",
"definition" : "The identifier that is used to identify this version of the evidence variable when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the evidence variable author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence. To provide a version consistent with the Decision Support Service specification, use the format Major.Minor.Revision (e.g. 1.0.0). For more information on versioning knowledge assets, refer to the Decision Support Service specification. Note that a version is required for non-experimental active artifacts.",
"comment" : "There may be different evidence variable instances that have the same identifier but different versions. The version can be appended to the url in a reference to allow a reference to a particular business version of the evidence variable with the format [url]|[version].",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.version",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.version"
},
{
"identity" : "w5",
"map" : "FiveWs.version"
}]
},
{
"id" : "EvidenceVariable.name",
"path" : "EvidenceVariable.name",
"short" : "Name for this evidence variable (computer friendly)",
"definition" : "A natural language name identifying the evidence variable. This name should be usable as an identifier for the module by machine processing applications such as code generation.",
"comment" : "The name is not expected to be globally unique. The name should be a simple alphanumeric type name to ensure that it is machine-processing friendly.",
"requirements" : "Support human navigation and code generation.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.name",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "string"
}],
"condition" : ["cnl-0"],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true
},
{
"id" : "EvidenceVariable.title",
"path" : "EvidenceVariable.title",
"short" : "Name for this evidence variable (human friendly)",
"definition" : "A short, descriptive, user-friendly title for the evidence variable.",
"comment" : "This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.title",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.title"
}]
},
{
"id" : "EvidenceVariable.shortTitle",
"path" : "EvidenceVariable.shortTitle",
"short" : "Title for use in informal contexts",
"definition" : "The short title provides an alternate title for use in informal descriptive contexts where the full, formal title is not necessary.",
"requirements" : "Need to be able to reference the content by a short description, but still provide a longer, more formal title for the content.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.shortTitle",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true
},
{
"id" : "EvidenceVariable.subtitle",
"path" : "EvidenceVariable.subtitle",
"short" : "Subordinate title of the EvidenceVariable",
"definition" : "An explanatory or alternate title for the EvidenceVariable giving additional information about its content.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.subtitle",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.status",
"path" : "EvidenceVariable.status",
"short" : "draft | active | retired | unknown",
"definition" : "The status of this evidence variable. Enables tracking the life-cycle of the content.",
"comment" : "Allows filtering of evidence variables that are appropriate for use versus not.",
"min" : 1,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.status",
"min" : 1,
"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"
}],
"mustSupport" : false,
"isModifier" : true,
"isModifierReason" : "This is labeled as \"Is Modifier\" because applications should not use a retired {{title}} without due consideration",
"isSummary" : true,
"binding" : {
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString" : "PublicationStatus"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding",
"valueBoolean" : true
}],
"strength" : "required",
"description" : "The lifecycle status of an artifact.",
"valueSet" : "http://hl7.org/fhir/ValueSet/publication-status|4.1.0"
},
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.status"
},
{
"identity" : "w5",
"map" : "FiveWs.status"
}]
},
{
"id" : "EvidenceVariable.date",
"path" : "EvidenceVariable.date",
"short" : "Date last changed",
"definition" : "The date (and optionally time) when the evidence variable was published. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the evidence variable changes.",
"comment" : "Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the evidence variable. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.",
"alias" : ["Revision Date"],
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.date",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.date"
},
{
"identity" : "w5",
"map" : "FiveWs.recorded"
}]
},
{
"id" : "EvidenceVariable.description",
"path" : "EvidenceVariable.description",
"short" : "Natural language description of the evidence variable",
"definition" : "A free text natural language description of the evidence variable from a consumer's perspective.",
"comment" : "This description can be used to capture details such as why the evidence variable was built, comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the evidence variable as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context (e.g. the language of the evidence variable is presumed to be the predominant language in the place the evidence variable was created).",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.description",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "markdown"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.description"
}]
},
{
"id" : "EvidenceVariable.note",
"path" : "EvidenceVariable.note",
"short" : "Used for footnotes or explanatory notes",
"definition" : "A human-readable string to clarify or explain concepts about the resource.",
"min" : 0,
"max" : "*",
"base" : {
"path" : "EvidenceVariable.note",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "Annotation"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.useContext",
"path" : "EvidenceVariable.useContext",
"short" : "The context that the content is intended to support",
"definition" : "The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate evidence variable instances.",
"comment" : "When multiple useContexts are specified, there is no expectation that all or any of the contexts apply.",
"requirements" : "Assist in searching for appropriate content.",
"min" : 0,
"max" : "*",
"base" : {
"path" : "EvidenceVariable.useContext",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "UsageContext"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.useContext"
}]
},
{
"id" : "EvidenceVariable.publisher",
"path" : "EvidenceVariable.publisher",
"short" : "Name of the publisher (organization or individual)",
"definition" : "The name of the organization or individual that published the evidence variable.",
"comment" : "Usually an organization but may be an individual. The publisher (or steward) of the evidence variable is the organization or individual primarily responsible for the maintenance and upkeep of the evidence variable. This is not necessarily the same individual or organization that developed and initially authored the content. The publisher is the primary point of contact for questions or issues with the evidence variable. This item SHOULD be populated unless the information is available from context.",
"requirements" : "Helps establish the \"authority/credibility\" of the evidence variable. May also allow for contact.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.publisher",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.publisher"
},
{
"identity" : "w5",
"map" : "FiveWs.witness"
}]
},
{
"id" : "EvidenceVariable.contact",
"path" : "EvidenceVariable.contact",
"short" : "Contact details for the publisher",
"definition" : "Contact details to assist a user in finding and communicating with the publisher.",
"comment" : "Extensions to ContactDetail include: contactReference, contactAddress, and contributionTime (Details at: http://build.fhir.org/clinicalreasoning-module.html).",
"min" : 0,
"max" : "*",
"base" : {
"path" : "EvidenceVariable.contact",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "ContactDetail"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.contact"
}]
},
{
"id" : "EvidenceVariable.author",
"path" : "EvidenceVariable.author",
"short" : "Who authored the content",
"definition" : "An individiual or organization primarily involved in the creation and maintenance of the content.",
"comment" : "Extensions to ContactDetail include: contactReference, contactAddress, and contributionTime (Details at: http://build.fhir.org/clinicalreasoning-module.html).",
"min" : 0,
"max" : "*",
"base" : {
"path" : "EvidenceVariable.author",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "ContactDetail"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : ".participation[typeCode=AUT]"
}]
},
{
"id" : "EvidenceVariable.editor",
"path" : "EvidenceVariable.editor",
"short" : "Who edited the content",
"definition" : "An individual or organization primarily responsible for internal coherence of the content.",
"comment" : "Extensions to ContactDetail include: contactReference, contactAddress, and contributionTime (Details at: http://build.fhir.org/clinicalreasoning-module.html).",
"min" : 0,
"max" : "*",
"base" : {
"path" : "EvidenceVariable.editor",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "ContactDetail"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.reviewer",
"path" : "EvidenceVariable.reviewer",
"short" : "Who reviewed the content",
"definition" : "An individual or organization primarily responsible for review of some aspect of the content.",
"comment" : "Extensions to ContactDetail include: contactReference, contactAddress, and contributionTime (Details at: http://build.fhir.org/clinicalreasoning-module.html).",
"min" : 0,
"max" : "*",
"base" : {
"path" : "EvidenceVariable.reviewer",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "ContactDetail"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : ".participation[typeCode=VRF] {not clear whether VRF best corresponds to reviewer or endorser}"
}]
},
{
"id" : "EvidenceVariable.endorser",
"path" : "EvidenceVariable.endorser",
"short" : "Who endorsed the content",
"definition" : "An individual or organization responsible for officially endorsing the content for use in some setting.",
"comment" : "Extensions to ContactDetail include: contactReference, contactAddress, and contributionTime (Details at: http://build.fhir.org/clinicalreasoning-module.html).",
"min" : 0,
"max" : "*",
"base" : {
"path" : "EvidenceVariable.endorser",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "ContactDetail"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : ".participation[typeCode=VRF] {not clear whether VRF best corresponds to reviewer or endorser}"
}]
},
{
"id" : "EvidenceVariable.relatedArtifact",
"path" : "EvidenceVariable.relatedArtifact",
"short" : "Additional documentation, citations, etc.",
"definition" : "Related artifacts such as additional documentation, justification, or bibliographic references.",
"comment" : "Each related artifact is either an attachment, or a reference to another resource, but not both.",
"requirements" : "EvidenceVariables must be able to provide enough information for consumers of the content (and/or interventions or results produced by the content) to be able to determine and understand the justification for and evidence in support of the content.",
"min" : 0,
"max" : "*",
"base" : {
"path" : "EvidenceVariable.relatedArtifact",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "RelatedArtifact"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.actual",
"path" : "EvidenceVariable.actual",
"short" : "Actual or conceptual",
"definition" : "True if the actual variable measured, false if a conceptual representation of the intended variable.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.actual",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "boolean"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristicCombination",
"path" : "EvidenceVariable.characteristicCombination",
"short" : "intersection | union",
"definition" : "Used to specify if two or more characteristics are combined with OR or AND.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.characteristicCombination",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"binding" : {
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString" : "CharacteristicCombination"
}],
"strength" : "required",
"description" : "Logical grouping of characteristics.",
"valueSet" : "http://hl7.org/fhir/ValueSet/characteristic-combination|4.1.0"
}
},
{
"id" : "EvidenceVariable.characteristic",
"path" : "EvidenceVariable.characteristic",
"short" : "What defines the members of the evidence element",
"definition" : "A characteristic that defines the members of the evidence element. Multiple characteristics are applied with \"and\" semantics.",
"comment" : "Characteristics can be defined flexibly to accommodate different use cases for membership criteria, ranging from simple codes, all the way to using an expression language to express the criteria.",
"min" : 0,
"max" : "*",
"base" : {
"path" : "EvidenceVariable.characteristic",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "BackboneElement"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true
},
{
"id" : "EvidenceVariable.characteristic.id",
"path" : "EvidenceVariable.characteristic.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",
"valueUri" : "id"
}],
"code" : "http://hl7.org/fhirpath/System.String"
}],
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "n/a"
}]
},
{
"id" : "EvidenceVariable.characteristic.extension",
"path" : "EvidenceVariable.characteristic.extension",
"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" : "EvidenceVariable.characteristic.modifierExtension",
"path" : "EvidenceVariable.characteristic.modifierExtension",
"short" : "Extensions that cannot be ignored even if unrecognized",
"definition" : "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
"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.",
"requirements" : "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).",
"alias" : ["extensions",
"user content",
"modifiers"],
"min" : 0,
"max" : "*",
"base" : {
"path" : "BackboneElement.modifierExtension",
"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" : true,
"isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
"isSummary" : true,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "EvidenceVariable.characteristic.description",
"path" : "EvidenceVariable.characteristic.description",
"short" : "Natural language description of the characteristic",
"definition" : "A short, natural language description of the characteristic that could be used to communicate the criteria to an end-user.",
"requirements" : "Need to be able to describe characteristics in natural language so that end users can understand the criteria.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.characteristic.description",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.definition[x]",
"path" : "EvidenceVariable.characteristic.definition[x]",
"short" : "What code or expression defines members?",
"definition" : "Define members of the evidence element using Codes (such as condition, medication, or observation), Expressions ( using an expression language such as FHIRPath or CQL) or DataRequirements (such as Diabetes diagnosis onset in the last year).",
"requirements" : "Need to be able to define members in simple codes when the membership aligns well with terminology, with common criteria such as observations in a value set or lab tests within a year, or with expression language to support criteria that do not fit in the above.",
"min" : 1,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.characteristic.definition[x]",
"min" : 1,
"max" : "1"
},
"type" : [{
"code" : "Reference",
"targetProfile" : ["http://hl7.org/fhir/StructureDefinition/Group",
"http://hl7.org/fhir/StructureDefinition/EvidenceVariable"]
},
{
"code" : "canonical",
"targetProfile" : ["http://hl7.org/fhir/StructureDefinition/Resource"]
},
{
"code" : "CodeableConcept"
},
{
"code" : "Expression"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true
},
{
"id" : "EvidenceVariable.characteristic.method",
"path" : "EvidenceVariable.characteristic.method",
"short" : "Method used for describing characteristic",
"definition" : "Method used for describing characteristic.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.characteristic.method",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "CodeableConcept"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"binding" : {
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString" : "CharacteristicMethod"
}],
"strength" : "example",
"description" : "The method used to determine the characteristic(s) of the variable.",
"valueSet" : "http://hl7.org/fhir/ValueSet/characteristic-method"
}
},
{
"id" : "EvidenceVariable.characteristic.device",
"path" : "EvidenceVariable.characteristic.device",
"short" : "Device used for determining characteristic",
"definition" : "Device used for determining characteristic.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.characteristic.device",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "Reference",
"targetProfile" : ["http://hl7.org/fhir/StructureDefinition/Device",
"http://hl7.org/fhir/StructureDefinition/DeviceMetric"]
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.exclude",
"path" : "EvidenceVariable.characteristic.exclude",
"short" : "Whether the characteristic includes or excludes members",
"definition" : "When true, members with this characteristic are excluded from the element.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.characteristic.exclude",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "boolean"
}],
"meaningWhenMissing" : "False",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.timeFromStart",
"path" : "EvidenceVariable.characteristic.timeFromStart",
"short" : "Observation time from study start",
"definition" : "Indicates duration, period, or point of observation from the participant's study entry.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.characteristic.timeFromStart",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "BackboneElement"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.timeFromStart.id",
"path" : "EvidenceVariable.characteristic.timeFromStart.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",
"valueUri" : "id"
}],
"code" : "http://hl7.org/fhirpath/System.String"
}],
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "n/a"
}]
},
{
"id" : "EvidenceVariable.characteristic.timeFromStart.extension",
"path" : "EvidenceVariable.characteristic.timeFromStart.extension",
"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" : "EvidenceVariable.characteristic.timeFromStart.modifierExtension",
"path" : "EvidenceVariable.characteristic.timeFromStart.modifierExtension",
"short" : "Extensions that cannot be ignored even if unrecognized",
"definition" : "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
"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.",
"requirements" : "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).",
"alias" : ["extensions",
"user content",
"modifiers"],
"min" : 0,
"max" : "*",
"base" : {
"path" : "BackboneElement.modifierExtension",
"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" : true,
"isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
"isSummary" : true,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "EvidenceVariable.characteristic.timeFromStart.description",
"path" : "EvidenceVariable.characteristic.timeFromStart.description",
"short" : "Human readable description",
"definition" : "A short, natural language description.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.characteristic.timeFromStart.description",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.timeFromStart.quantity",
"path" : "EvidenceVariable.characteristic.timeFromStart.quantity",
"short" : "Used to express the observation at a defined amount of time after the study start",
"definition" : "Used to express the observation at a defined amount of time after the study start.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.characteristic.timeFromStart.quantity",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "Quantity"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.timeFromStart.range",
"path" : "EvidenceVariable.characteristic.timeFromStart.range",
"short" : "Used to express the observation within a period after the study start",
"definition" : "Used to express the observation within a period after the study start.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.characteristic.timeFromStart.range",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "Range"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.timeFromStart.note",
"path" : "EvidenceVariable.characteristic.timeFromStart.note",
"short" : "Used for footnotes or explanatory notes",
"definition" : "A human-readable string to clarify or explain concepts about the resource.",
"min" : 0,
"max" : "*",
"base" : {
"path" : "EvidenceVariable.characteristic.timeFromStart.note",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "Annotation"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.groupMeasure",
"path" : "EvidenceVariable.characteristic.groupMeasure",
"short" : "mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median",
"definition" : "Indicates how elements are aggregated within the study effective period.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.characteristic.groupMeasure",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"binding" : {
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString" : "GroupMeasure"
}],
"strength" : "required",
"description" : "Possible group measure aggregates (E.g. Mean, Median).",
"valueSet" : "http://hl7.org/fhir/ValueSet/group-measure|4.1.0"
}
},
{
"id" : "EvidenceVariable.handling",
"path" : "EvidenceVariable.handling",
"short" : "continuous | dichotomous | ordinal | polychotomous",
"definition" : "Used for an outcome to classify.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.handling",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"binding" : {
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString" : "EvidenceVariableHandling"
}],
"strength" : "required",
"description" : "The handling of the variable in statistical analysis for exposures or outcomes (E.g. Dichotomous, Continuous, Descriptive).",
"valueSet" : "http://hl7.org/fhir/ValueSet/variable-handling|4.1.0"
}
},
{
"id" : "EvidenceVariable.category",
"path" : "EvidenceVariable.category",
"short" : "A grouping for ordinal or polychotomous variables",
"definition" : "A grouping (or set of values) described along with other groupings to specify the set of groupings allowed for the variable.",
"min" : 0,
"max" : "*",
"base" : {
"path" : "EvidenceVariable.category",
"min" : 0,
"max" : "*"
},
"type" : [{
"code" : "BackboneElement"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.category.id",
"path" : "EvidenceVariable.category.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",
"valueUri" : "id"
}],
"code" : "http://hl7.org/fhirpath/System.String"
}],
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : "n/a"
}]
},
{
"id" : "EvidenceVariable.category.extension",
"path" : "EvidenceVariable.category.extension",
"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" : "EvidenceVariable.category.modifierExtension",
"path" : "EvidenceVariable.category.modifierExtension",
"short" : "Extensions that cannot be ignored even if unrecognized",
"definition" : "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
"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.",
"requirements" : "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).",
"alias" : ["extensions",
"user content",
"modifiers"],
"min" : 0,
"max" : "*",
"base" : {
"path" : "BackboneElement.modifierExtension",
"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" : true,
"isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
"isSummary" : true,
"mapping" : [{
"identity" : "rim",
"map" : "N/A"
}]
},
{
"id" : "EvidenceVariable.category.name",
"path" : "EvidenceVariable.category.name",
"short" : "Description of the grouping",
"definition" : "A human-readable title or representation of the grouping.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.category.name",
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.category.value[x]",
"path" : "EvidenceVariable.category.value[x]",
"short" : "Definition of the grouping",
"definition" : "Value or set of values that define the grouping.",
"min" : 0,
"max" : "1",
"base" : {
"path" : "EvidenceVariable.category.value[x]",
"min" : 0,
"max" : "1"
},
"type" : [{
"code" : "CodeableConcept"
},
{
"code" : "Quantity"
},
{
"code" : "Range"
}],
"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"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
}]
},
"differential" : {
"element" : [{
"id" : "EvidenceVariable",
"path" : "EvidenceVariable",
"short" : "A definition of an exposure, outcome, or other variable",
"definition" : "The EvidenceVariable resource describes an element that knowledge (Evidence) is about.",
"comment" : "The EvidenceVariable may be an exposure variable (intervention, condition, or state), a measured variable (outcome or observed parameter), or other variable (such as confounding factor).",
"min" : 0,
"max" : "*",
"constraint" : [{
"key" : "cnl-0",
"severity" : "warning",
"human" : "Name should be usable as an identifier for the module by machine processing applications such as code generation",
"expression" : "name.matches('[A-Z]([A-Za-z0-9_]){0,254}')",
"xpath" : "not(exists(f:name/@value)) or matches(f:name/@value, '[A-Z]([A-Za-z0-9_]){0,254}')",
"source" : "http://hl7.org/fhir/StructureDefinition/EvidenceVariable"
}],
"mustSupport" : false,
"isModifier" : false,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition"
},
{
"identity" : "w5",
"map" : "clinical.general"
}]
},
{
"id" : "EvidenceVariable.url",
"path" : "EvidenceVariable.url",
"short" : "Canonical identifier for this evidence variable, represented as a URI (globally unique)",
"definition" : "An absolute URI that is used to identify this evidence variable when it is referenced in a specification, model, design or an instance; also called its canonical identifier. This SHOULD be globally unique and SHOULD be a literal address at which at which an authoritative instance of this evidence variable is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the evidence variable is stored on different servers.",
"comment" : "Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred. Multiple instances may share the same URL if they have a distinct version.\n\nThe determination of when to create a new version of a resource (same url, new version) vs. defining a new artifact is up to the author. Considerations for making this decision are found in [Technical and Business Versions](resource.html#versions). \n\nIn some cases, the resource can no longer be found at the stated url, but the url itself cannot change. Implementations can use the [meta.source](resource.html#meta) element to indicate where the current master source of the resource can be found.",
"requirements" : "Allows the evidence variable to be referenced by a single globally unique identifier.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "uri"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.url"
},
{
"identity" : "w5",
"map" : "FiveWs.identifier"
}]
},
{
"id" : "EvidenceVariable.identifier",
"path" : "EvidenceVariable.identifier",
"short" : "Additional identifier for the evidence variable",
"definition" : "A formal identifier that is used to identify this evidence variable when it is represented in other formats, or referenced in a specification, model, design or an instance.",
"comment" : "Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, and can then identify this evidence variable outside of FHIR, where it is not possible to use the logical URI.",
"requirements" : "Allows externally provided and/or usable business identifiers to be easily associated with the module.",
"min" : 0,
"max" : "*",
"type" : [{
"code" : "Identifier"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.identifier"
},
{
"identity" : "w5",
"map" : "FiveWs.identifier"
},
{
"identity" : "objimpl",
"map" : "no-gen-base"
}]
},
{
"id" : "EvidenceVariable.version",
"path" : "EvidenceVariable.version",
"short" : "Business version of the evidence variable",
"definition" : "The identifier that is used to identify this version of the evidence variable when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the evidence variable author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence. To provide a version consistent with the Decision Support Service specification, use the format Major.Minor.Revision (e.g. 1.0.0). For more information on versioning knowledge assets, refer to the Decision Support Service specification. Note that a version is required for non-experimental active artifacts.",
"comment" : "There may be different evidence variable instances that have the same identifier but different versions. The version can be appended to the url in a reference to allow a reference to a particular business version of the evidence variable with the format [url]|[version].",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "string"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.version"
},
{
"identity" : "w5",
"map" : "FiveWs.version"
}]
},
{
"id" : "EvidenceVariable.name",
"path" : "EvidenceVariable.name",
"short" : "Name for this evidence variable (computer friendly)",
"definition" : "A natural language name identifying the evidence variable. This name should be usable as an identifier for the module by machine processing applications such as code generation.",
"comment" : "The name is not expected to be globally unique. The name should be a simple alphanumeric type name to ensure that it is machine-processing friendly.",
"requirements" : "Support human navigation and code generation.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "string"
}],
"condition" : ["cnl-0"],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true
},
{
"id" : "EvidenceVariable.title",
"path" : "EvidenceVariable.title",
"short" : "Name for this evidence variable (human friendly)",
"definition" : "A short, descriptive, user-friendly title for the evidence variable.",
"comment" : "This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "string"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.title"
}]
},
{
"id" : "EvidenceVariable.shortTitle",
"path" : "EvidenceVariable.shortTitle",
"short" : "Title for use in informal contexts",
"definition" : "The short title provides an alternate title for use in informal descriptive contexts where the full, formal title is not necessary.",
"requirements" : "Need to be able to reference the content by a short description, but still provide a longer, more formal title for the content.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "string"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true
},
{
"id" : "EvidenceVariable.subtitle",
"path" : "EvidenceVariable.subtitle",
"short" : "Subordinate title of the EvidenceVariable",
"definition" : "An explanatory or alternate title for the EvidenceVariable giving additional information about its content.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "string"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.status",
"path" : "EvidenceVariable.status",
"short" : "draft | active | retired | unknown",
"definition" : "The status of this evidence variable. Enables tracking the life-cycle of the content.",
"comment" : "Allows filtering of evidence variables that are appropriate for use versus not.",
"min" : 1,
"max" : "1",
"type" : [{
"code" : "code"
}],
"mustSupport" : false,
"isModifier" : true,
"isModifierReason" : "This is labeled as \"Is Modifier\" because applications should not use a retired {{title}} without due consideration",
"isSummary" : true,
"binding" : {
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString" : "PublicationStatus"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding",
"valueBoolean" : true
}],
"strength" : "required",
"description" : "The lifecycle status of an artifact.",
"valueSet" : "http://hl7.org/fhir/ValueSet/publication-status|4.1.0"
},
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.status"
},
{
"identity" : "w5",
"map" : "FiveWs.status"
}]
},
{
"id" : "EvidenceVariable.date",
"path" : "EvidenceVariable.date",
"short" : "Date last changed",
"definition" : "The date (and optionally time) when the evidence variable was published. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the evidence variable changes.",
"comment" : "Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the evidence variable. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.",
"alias" : ["Revision Date"],
"min" : 0,
"max" : "1",
"type" : [{
"code" : "dateTime"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.date"
},
{
"identity" : "w5",
"map" : "FiveWs.recorded"
}]
},
{
"id" : "EvidenceVariable.description",
"path" : "EvidenceVariable.description",
"short" : "Natural language description of the evidence variable",
"definition" : "A free text natural language description of the evidence variable from a consumer's perspective.",
"comment" : "This description can be used to capture details such as why the evidence variable was built, comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the evidence variable as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context (e.g. the language of the evidence variable is presumed to be the predominant language in the place the evidence variable was created).",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "markdown"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.description"
}]
},
{
"id" : "EvidenceVariable.note",
"path" : "EvidenceVariable.note",
"short" : "Used for footnotes or explanatory notes",
"definition" : "A human-readable string to clarify or explain concepts about the resource.",
"min" : 0,
"max" : "*",
"type" : [{
"code" : "Annotation"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.useContext",
"path" : "EvidenceVariable.useContext",
"short" : "The context that the content is intended to support",
"definition" : "The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate evidence variable instances.",
"comment" : "When multiple useContexts are specified, there is no expectation that all or any of the contexts apply.",
"requirements" : "Assist in searching for appropriate content.",
"min" : 0,
"max" : "*",
"type" : [{
"code" : "UsageContext"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.useContext"
}]
},
{
"id" : "EvidenceVariable.publisher",
"path" : "EvidenceVariable.publisher",
"short" : "Name of the publisher (organization or individual)",
"definition" : "The name of the organization or individual that published the evidence variable.",
"comment" : "Usually an organization but may be an individual. The publisher (or steward) of the evidence variable is the organization or individual primarily responsible for the maintenance and upkeep of the evidence variable. This is not necessarily the same individual or organization that developed and initially authored the content. The publisher is the primary point of contact for questions or issues with the evidence variable. This item SHOULD be populated unless the information is available from context.",
"requirements" : "Helps establish the \"authority/credibility\" of the evidence variable. May also allow for contact.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "string"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.publisher"
},
{
"identity" : "w5",
"map" : "FiveWs.witness"
}]
},
{
"id" : "EvidenceVariable.contact",
"path" : "EvidenceVariable.contact",
"short" : "Contact details for the publisher",
"definition" : "Contact details to assist a user in finding and communicating with the publisher.",
"comment" : "Extensions to ContactDetail include: contactReference, contactAddress, and contributionTime (Details at: http://build.fhir.org/clinicalreasoning-module.html).",
"min" : 0,
"max" : "*",
"type" : [{
"code" : "ContactDetail"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"mapping" : [{
"identity" : "workflow",
"map" : "Definition.contact"
}]
},
{
"id" : "EvidenceVariable.author",
"path" : "EvidenceVariable.author",
"short" : "Who authored the content",
"definition" : "An individiual or organization primarily involved in the creation and maintenance of the content.",
"comment" : "Extensions to ContactDetail include: contactReference, contactAddress, and contributionTime (Details at: http://build.fhir.org/clinicalreasoning-module.html).",
"min" : 0,
"max" : "*",
"type" : [{
"code" : "ContactDetail"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : ".participation[typeCode=AUT]"
}]
},
{
"id" : "EvidenceVariable.editor",
"path" : "EvidenceVariable.editor",
"short" : "Who edited the content",
"definition" : "An individual or organization primarily responsible for internal coherence of the content.",
"comment" : "Extensions to ContactDetail include: contactReference, contactAddress, and contributionTime (Details at: http://build.fhir.org/clinicalreasoning-module.html).",
"min" : 0,
"max" : "*",
"type" : [{
"code" : "ContactDetail"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.reviewer",
"path" : "EvidenceVariable.reviewer",
"short" : "Who reviewed the content",
"definition" : "An individual or organization primarily responsible for review of some aspect of the content.",
"comment" : "Extensions to ContactDetail include: contactReference, contactAddress, and contributionTime (Details at: http://build.fhir.org/clinicalreasoning-module.html).",
"min" : 0,
"max" : "*",
"type" : [{
"code" : "ContactDetail"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : ".participation[typeCode=VRF] {not clear whether VRF best corresponds to reviewer or endorser}"
}]
},
{
"id" : "EvidenceVariable.endorser",
"path" : "EvidenceVariable.endorser",
"short" : "Who endorsed the content",
"definition" : "An individual or organization responsible for officially endorsing the content for use in some setting.",
"comment" : "Extensions to ContactDetail include: contactReference, contactAddress, and contributionTime (Details at: http://build.fhir.org/clinicalreasoning-module.html).",
"min" : 0,
"max" : "*",
"type" : [{
"code" : "ContactDetail"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"mapping" : [{
"identity" : "rim",
"map" : ".participation[typeCode=VRF] {not clear whether VRF best corresponds to reviewer or endorser}"
}]
},
{
"id" : "EvidenceVariable.relatedArtifact",
"path" : "EvidenceVariable.relatedArtifact",
"short" : "Additional documentation, citations, etc.",
"definition" : "Related artifacts such as additional documentation, justification, or bibliographic references.",
"comment" : "Each related artifact is either an attachment, or a reference to another resource, but not both.",
"requirements" : "EvidenceVariables must be able to provide enough information for consumers of the content (and/or interventions or results produced by the content) to be able to determine and understand the justification for and evidence in support of the content.",
"min" : 0,
"max" : "*",
"type" : [{
"code" : "RelatedArtifact"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.actual",
"path" : "EvidenceVariable.actual",
"short" : "Actual or conceptual",
"definition" : "True if the actual variable measured, false if a conceptual representation of the intended variable.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "boolean"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristicCombination",
"path" : "EvidenceVariable.characteristicCombination",
"short" : "intersection | union",
"definition" : "Used to specify if two or more characteristics are combined with OR or AND.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "code"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"binding" : {
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString" : "CharacteristicCombination"
}],
"strength" : "required",
"description" : "Logical grouping of characteristics.",
"valueSet" : "http://hl7.org/fhir/ValueSet/characteristic-combination|4.1.0"
}
},
{
"id" : "EvidenceVariable.characteristic",
"path" : "EvidenceVariable.characteristic",
"short" : "What defines the members of the evidence element",
"definition" : "A characteristic that defines the members of the evidence element. Multiple characteristics are applied with \"and\" semantics.",
"comment" : "Characteristics can be defined flexibly to accommodate different use cases for membership criteria, ranging from simple codes, all the way to using an expression language to express the criteria.",
"min" : 0,
"max" : "*",
"type" : [{
"code" : "BackboneElement"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true
},
{
"id" : "EvidenceVariable.characteristic.description",
"path" : "EvidenceVariable.characteristic.description",
"short" : "Natural language description of the characteristic",
"definition" : "A short, natural language description of the characteristic that could be used to communicate the criteria to an end-user.",
"requirements" : "Need to be able to describe characteristics in natural language so that end users can understand the criteria.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "string"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.definition[x]",
"path" : "EvidenceVariable.characteristic.definition[x]",
"short" : "What code or expression defines members?",
"definition" : "Define members of the evidence element using Codes (such as condition, medication, or observation), Expressions ( using an expression language such as FHIRPath or CQL) or DataRequirements (such as Diabetes diagnosis onset in the last year).",
"requirements" : "Need to be able to define members in simple codes when the membership aligns well with terminology, with common criteria such as observations in a value set or lab tests within a year, or with expression language to support criteria that do not fit in the above.",
"min" : 1,
"max" : "1",
"type" : [{
"code" : "Reference",
"targetProfile" : ["http://hl7.org/fhir/StructureDefinition/Group",
"http://hl7.org/fhir/StructureDefinition/EvidenceVariable"]
},
{
"code" : "canonical",
"targetProfile" : ["http://hl7.org/fhir/StructureDefinition/Resource"]
},
{
"code" : "CodeableConcept"
},
{
"code" : "Expression"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true
},
{
"id" : "EvidenceVariable.characteristic.method",
"path" : "EvidenceVariable.characteristic.method",
"short" : "Method used for describing characteristic",
"definition" : "Method used for describing characteristic.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "CodeableConcept"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"binding" : {
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString" : "CharacteristicMethod"
}],
"strength" : "example",
"description" : "The method used to determine the characteristic(s) of the variable.",
"valueSet" : "http://hl7.org/fhir/ValueSet/characteristic-method"
}
},
{
"id" : "EvidenceVariable.characteristic.device",
"path" : "EvidenceVariable.characteristic.device",
"short" : "Device used for determining characteristic",
"definition" : "Device used for determining characteristic.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "Reference",
"targetProfile" : ["http://hl7.org/fhir/StructureDefinition/Device",
"http://hl7.org/fhir/StructureDefinition/DeviceMetric"]
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.exclude",
"path" : "EvidenceVariable.characteristic.exclude",
"short" : "Whether the characteristic includes or excludes members",
"definition" : "When true, members with this characteristic are excluded from the element.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "boolean"
}],
"meaningWhenMissing" : "False",
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.timeFromStart",
"path" : "EvidenceVariable.characteristic.timeFromStart",
"short" : "Observation time from study start",
"definition" : "Indicates duration, period, or point of observation from the participant's study entry.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "BackboneElement"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.timeFromStart.description",
"path" : "EvidenceVariable.characteristic.timeFromStart.description",
"short" : "Human readable description",
"definition" : "A short, natural language description.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "string"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.timeFromStart.quantity",
"path" : "EvidenceVariable.characteristic.timeFromStart.quantity",
"short" : "Used to express the observation at a defined amount of time after the study start",
"definition" : "Used to express the observation at a defined amount of time after the study start.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "Quantity"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.timeFromStart.range",
"path" : "EvidenceVariable.characteristic.timeFromStart.range",
"short" : "Used to express the observation within a period after the study start",
"definition" : "Used to express the observation within a period after the study start.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "Range"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.timeFromStart.note",
"path" : "EvidenceVariable.characteristic.timeFromStart.note",
"short" : "Used for footnotes or explanatory notes",
"definition" : "A human-readable string to clarify or explain concepts about the resource.",
"min" : 0,
"max" : "*",
"type" : [{
"code" : "Annotation"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.characteristic.groupMeasure",
"path" : "EvidenceVariable.characteristic.groupMeasure",
"short" : "mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median",
"definition" : "Indicates how elements are aggregated within the study effective period.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "code"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false,
"binding" : {
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString" : "GroupMeasure"
}],
"strength" : "required",
"description" : "Possible group measure aggregates (E.g. Mean, Median).",
"valueSet" : "http://hl7.org/fhir/ValueSet/group-measure|4.1.0"
}
},
{
"id" : "EvidenceVariable.handling",
"path" : "EvidenceVariable.handling",
"short" : "continuous | dichotomous | ordinal | polychotomous",
"definition" : "Used for an outcome to classify.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "code"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : true,
"binding" : {
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
"valueString" : "EvidenceVariableHandling"
}],
"strength" : "required",
"description" : "The handling of the variable in statistical analysis for exposures or outcomes (E.g. Dichotomous, Continuous, Descriptive).",
"valueSet" : "http://hl7.org/fhir/ValueSet/variable-handling|4.1.0"
}
},
{
"id" : "EvidenceVariable.category",
"path" : "EvidenceVariable.category",
"short" : "A grouping for ordinal or polychotomous variables",
"definition" : "A grouping (or set of values) described along with other groupings to specify the set of groupings allowed for the variable.",
"min" : 0,
"max" : "*",
"type" : [{
"code" : "BackboneElement"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.category.name",
"path" : "EvidenceVariable.category.name",
"short" : "Description of the grouping",
"definition" : "A human-readable title or representation of the grouping.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "string"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
},
{
"id" : "EvidenceVariable.category.value[x]",
"path" : "EvidenceVariable.category.value[x]",
"short" : "Definition of the grouping",
"definition" : "Value or set of values that define the grouping.",
"min" : 0,
"max" : "1",
"type" : [{
"code" : "CodeableConcept"
},
{
"code" : "Quantity"
},
{
"code" : "Range"
}],
"mustSupport" : false,
"isModifier" : false,
"isSummary" : false
}]
}
}
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 R4B Ballot #1 hl7.fhir.core#4.1.0 generated on Thu, Mar 11, 2021 17:10+1100.
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