FHIR Extensions Pack
5.3.0-ballot - (September 2025 Ballot)
FHIR Extensions Pack
5.3.0-ballot - (September 2025 Ballot)
This page is part of the FHIR Core Extensions Registry (v5.3.0-ballot: Release 5.3) based on FHIR (HL7® FHIR® Standard) v5.0.0. This version is a pre-release. The current official version is 5.2.0. For a full list of available versions, see the Directory of published versions
| Page standards status: Trial-use | Maturity Level: 3 |
TTL representation of the rendering-style extension.
@prefix fhir: <http://hl7.org/fhir/> . @prefix owl: <http://www.w3.org/2002/07/owl#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . # - resource ------------------------------------------------------------------- a fhir:StructureDefinition ; fhir:nodeRole fhir:treeRoot ; fhir:id [ fhir:v "rendering-style"] ; # fhir:text [ fhir:status [ fhir:v "extensions" ] ; fhir:div "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: StructureDefinition rendering-style</b></p><a name=\"rendering-style\"> </a><a name=\"hcrendering-style\"> </a><table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" style=\"border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;\"><tr style=\"border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top\"><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"The logical name of the element\">Name</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Information about the use of the element\">Flags</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Minimum and Maximum # of times the element can appear in the instance\">Card.</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px; width: 100px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Reference to the type of the element\">Type</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Additional information about the element\">Description & Constraints</a><span style=\"float: right\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Legend for this format\"><img src=\"data:image/png;base64,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\" alt=\"doco\" style=\"background-color: inherit\"/></a></span></th></tr><tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-rendering-style-definitions.html#Extension\" title=\"Indicates an HTML style that should be applied when rendering this element.\">Extension</a><a name=\"Extension\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">0..1</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R5/extensibility.html#Extension\">Extension</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Html style value</td></tr>#xD;\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_extension_simple.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Simple Extension\" class=\"hierarchy\"/> <span style=\"text-decoration:line-through\">extension</span><a name=\"Extension.extension\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"text-decoration:line-through\"/><span style=\"text-decoration:line-through\">0</span><span style=\"text-decoration:line-through\">..</span><span style=\"text-decoration:line-through\">0</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>#xD;\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-rendering-style-definitions.html#Extension.url\">url</a><a name=\"Extension.url\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">1</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R5/datatypes.html#uri\">uri</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"color: darkgreen\">\"http://hl7.org/fhir/StructureDefinition/rendering-style\"</span></td></tr>#xD;\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck00.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_primitive.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Primitive Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-rendering-style-definitions.html#Extension.value[x]\">value[x]</a><a name=\"Extension.value_x_\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..<span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R5/datatypes.html#string\">string</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">Value of extension</span></td></tr>#xD;\n<tr><td colspan=\"5\" class=\"hierarchy\"><br/><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Legend for this format\"><img src=\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3goXBCwdPqAP0wAAAldJREFUOMuNk0tIlFEYhp9z/vE2jHkhxXA0zJCMitrUQlq4lnSltEqCFhFG2MJFhIvIFpkEWaTQqjaWZRkp0g26URZkTpbaaOJkDqk10szoODP//7XIMUe0elcfnPd9zsfLOYplGrpRwZaqTtw3K7PtGem7Q6FoidbGgqHVy/HRb669R+56zx7eRV1L31JGxYbBtjKK93cxeqfyQHbehkZbUkK20goELEuIzEd+dHS+qz/Y8PTSif0FnGkbiwcAjHaU1+QWOptFiyCLp/LnKptpqIuXHx6rbR26kJcBX3yLgBfnd7CxwJmflpP2wUg0HIAoUUpZBmKzELGWcN8nAr6Gpu7tLU/CkwAaoKTWRSQyt89Q8w6J+oVQkKnBoblH7V0PPvUOvDYXfopE/SJmALsxnVm6LbkotrUtNowMeIrVrBcBpaMmdS0j9df7abpSuy7HWehwJdt1lhVwi/J58U5beXGAF6c3UXLycw1wdFklArBn87xdh0ZsZtArghBdAA3+OEDVubG4UEzP6x1FOWneHh2VDAHBAt80IbdXDcesNoCvs3E5AFyNSU5nbrDPZpcUEQQTFZiEVx+51fxMhhyJEAgvlriadIJZZksRuwBYMOPBbO3hePVVqgEJhFeUuFLhIPkRP6BQLIBrmMenujm/3g4zc398awIe90Zb5A1vREALqneMcYgP/xVQWlG+Ncu5vgwwlaUNx+3799rfe96u9K0JSDXcOzOTJg4B6IgmXfsygc7/Bvg9g9E58/cDVmGIBOP/zT8Bz1zqWqpbXIsd0O9hajXfL6u4BaOS6SeWAAAAAElFTkSuQmCC\" alt=\"doco\" style=\"background-color: inherit\"/> Documentation for this format</a></td></tr></table></div>"^^rdf:XMLLiteral ] ; # fhir:extension ( [ fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"^^xsd:anyURI ] ; fhir:value [ a fhir:code ; fhir:v "fhir" ] ] [ fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm"^^xsd:anyURI ] ; fhir:value [ a fhir:integer ; fhir:v 3 ] ] [ fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"^^xsd:anyURI ] ; fhir:value [ a fhir:code ; fhir:v "trial-use" ] ] [ fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics"^^xsd:anyURI ] ; fhir:value [ a fhir:code ; fhir:v "can-bind" ] ] ) ; # fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/rendering-style"^^xsd:anyURI] ; # fhir:identifier ( [ fhir:system [ fhir:v "urn:ietf:rfc:3986"^^xsd:anyURI ] ; fhir:value [ fhir:v "urn:oid:2.16.840.1.113883.4.642.5.1686" ] ] ) ; # fhir:version [ fhir:v "5.3.0-ballot"] ; # fhir:name [ fhir:v "RenderingStyle"] ; # fhir:title [ fhir:v "Rendering Style"] ; # fhir:status [ fhir:v "active"] ; # fhir:experimental [ fhir:v false] ; # fhir:date [ fhir:v "2014-04-23"^^xsd:date] ; # fhir:publisher [ fhir:v "HL7 International / FHIR Infrastructure"] ; # fhir:contact ( [ ( fhir:telecom [ fhir:system [ fhir:v "url" ] ; fhir:value [ fhir:v "http://www.hl7.org/Special/committees/fiwg" ] ] ) ] ) ; # fhir:description [ fhir:v "Indicates an HTML style that should be applied when rendering this element."] ; # fhir:jurisdiction ( [ ( fhir:coding [ fhir:system [ fhir:v "http://unstats.un.org/unsd/methods/m49/m49.htm"^^xsd:anyURI ] ; fhir:code [ fhir:v "001" ] ] ) ] ) ; # fhir:fhirVersion [ fhir:v "5.0.0"] ; # fhir:mapping ( [ fhir:identity [ fhir:v "rim" ] ; fhir:uri [ fhir:v "http://hl7.org/v3"^^xsd:anyURI ] ; fhir:name [ fhir:v "RIM Mapping" ] ] ) ; # fhir:kind [ fhir:v "complex-type"] ; # fhir:abstract [ fhir:v false] ; # fhir:context ( [ fhir:type [ fhir:v "element" ] ; fhir:expression [ fhir:v "Element" ] ] ) ; # fhir:type [ fhir:v "Extension"^^xsd:anyURI] ; # fhir:baseDefinition [ fhir:v "http://hl7.org/fhir/StructureDefinition/Extension"^^xsd:anyURI ; fhir:link <http://hl7.org/fhir/StructureDefinition/Extension> ] ; # fhir:derivation [ fhir:v "constraint"] ; # fhir:snapshot [ ( fhir:extension [ fhir:url [ fhir:v "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version"^^xsd:anyURI ] ; fhir:value [ a fhir:string ; fhir:v "5.0.0" ] ] ) ; ( fhir:element [ fhir:id [ fhir:v "Extension" ] ; fhir:path [ fhir:v "Extension" ] ; fhir:short [ fhir:v "Html style value" ] ; fhir:definition [ fhir:v "Indicates an HTML style that should be applied when rendering this element." ] ; fhir:comment [ fhir:v "This extension would be equivalent to setting the HTML \"style\" attribute on the root element for the element containing the extension.\n\nNOTE: HTML styles can include references to external content (images, fonts, etc.), which may constitute a security issue, as resolving the link can allow tracking. See [here for more detail](http://hl7.org/fhir/security.html#narrative).\n\nFor questionnaires, see additional guidance and examples in the [SDC implementation guide](http://hl7.org/fhir/uv/sdc/2025Jan/rendering.html#rendering-style). This style applies to the base string. If there is also a rendering-xhtml or rendering-markdown extension, they must declare any relevant styles within those extension values.\n\nSetting styles on elements can be risky. It presumes knowledge of how elements are rendered \"by default\". For example, setting the color of an element to 'blue' to highlight it might be fine - unless the default background color for a particular renderer is already blue. As well, it's not a given that all elements will be represented by a single HTML element. One element might be referenced by a collection of table cells that span rows and columns. Setting a border style on all of those cells wouldn't give the desired results and auto-tweaking the border style on each cell (deciding whether the border is top,left, right, etc.) would require complex coding. Finally, systems might not be using HTML for their UI at all and will need to map the specified styles to their own UI mechanism. For this reason, this element is best used when:\na) the default UI characteristics are already well understood (because the specification applies to a single system or to a set of systems that are already required to comply with specific UI expectations\nb) the set of allowed style values is tightly controlled to only those that are necessary and sensible in that context" ] ; fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ; fhir:max [ fhir:v "1" ] ; fhir:base [ fhir:path [ fhir:v "Extension" ] ; fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ; fhir:max [ fhir:v "*" ] ] ; ( fhir:constraint [ fhir:key [ fhir:v "ele-1" ] ; fhir:severity [ fhir:v "error" ] ; fhir:human [ fhir:v "All FHIR elements must have a @value or children" ] ; fhir:expression [ fhir:v "hasValue() or (children().count() > id.count())" ] ; fhir:source [ fhir:v "http://hl7.org/fhir/StructureDefinition/Element"^^xsd:anyURI ; fhir:link <http://hl7.org/fhir/StructureDefinition/Element> ] ] [ fhir:key [ fhir:v "ext-1" ] ; fhir:severity [ fhir:v "error" ] ; fhir:human [ fhir:v "Must have either extensions or value[x], not both" ] ; fhir:expression [ fhir:v "extension.exists() != value.exists()" ] ; fhir:source [ fhir:v "http://hl7.org/fhir/StructureDefinition/Extension"^^xsd:anyURI ; fhir:link <http://hl7.org/fhir/StructureDefinition/Extension> ] ] ) ; fhir:isModifier [ fhir:v false ] ; ( fhir:mapping [ fhir:identity [ fhir:v "rim" ] ; fhir:map [ fhir:v "N/A" ] ] ) ] [ fhir:id [ fhir:v "Extension.id" ] ; fhir:path [ fhir:v "Extension.id" ] ; ( fhir:representation [ fhir:v "xmlAttr" ] ) ; fhir:short [ fhir:v "Unique id for inter-element referencing" ] ; fhir:definition [ fhir:v "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." ] ; fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ; fhir:max [ fhir:v "1" ] ; fhir:base [ fhir:path [ fhir:v "Element.id" ] ; fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ; fhir:max [ fhir:v "1" ] ] ; ( fhir:type [ ( fhir:extension [ fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"^^xsd:anyURI ] ; fhir:value [ a fhir:url ; fhir:v "id"^^xsd:anyURI ] ] ) ; fhir:code [ fhir:v "http://hl7.org/fhirpath/System.String"^^xsd:anyURI ] ] ) ; ( fhir:condition [ fhir:v "ele-1" ] ) ; fhir:isModifier [ fhir:v false ] ; fhir:isSummary [ fhir:v false ] ; ( fhir:mapping [ fhir:identity [ fhir:v "rim" ] ; fhir:map [ fhir:v "n/a" ] ] ) ] [ fhir:id [ fhir:v "Extension.extension" ] ; fhir:path [ fhir:v "Extension.extension" ] ; fhir:slicing [ ( fhir:discriminator [ fhir:type [ fhir:v "value" ] ; fhir:path [ fhir:v "url" ] ] ) ; fhir:description [ fhir:v "Extensions are always sliced by (at least) url" ] ; fhir:rules [ fhir:v "open" ] ] ; fhir:short [ fhir:v "Extension" ] ; fhir:definition [ fhir:v "An Extension" ] ; fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ; fhir:max [ fhir:v "0" ] ; fhir:base [ fhir:path [ fhir:v "Element.extension" ] ; fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ; fhir:max [ fhir:v "*" ] ] ; ( fhir:type [ fhir:code [ fhir:v "Extension"^^xsd:anyURI ] ] ) ; ( fhir:constraint [ fhir:key [ fhir:v "ele-1" ] ; fhir:severity [ fhir:v "error" ] ; fhir:human [ fhir:v "All FHIR elements must have a @value or children" ] ; fhir:expression [ fhir:v "hasValue() or (children().count() > id.count())" ] ; fhir:source [ fhir:v "http://hl7.org/fhir/StructureDefinition/Element"^^xsd:anyURI ; fhir:link <http://hl7.org/fhir/StructureDefinition/Element> ] ] [ fhir:key [ fhir:v "ext-1" ] ; fhir:severity [ fhir:v "error" ] ; fhir:human [ fhir:v "Must have either extensions or value[x], not both" ] ; fhir:expression [ fhir:v "extension.exists() != value.exists()" ] ; fhir:source [ fhir:v "http://hl7.org/fhir/StructureDefinition/Extension"^^xsd:anyURI ; fhir:link <http://hl7.org/fhir/StructureDefinition/Extension> ] ] ) ; fhir:isModifier [ fhir:v false ] ; fhir:isSummary [ fhir:v false ] ] [ fhir:id [ fhir:v "Extension.url" ] ; fhir:path [ fhir:v "Extension.url" ] ; ( fhir:representation [ fhir:v "xmlAttr" ] ) ; fhir:short [ fhir:v "identifies the meaning of the extension" ] ; fhir:definition [ fhir:v "Source of the definition for the extension code - a logical name or a URL." ] ; fhir:comment [ fhir:v "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." ] ; fhir:min [ fhir:v "1"^^xsd:nonNegativeInteger ] ; fhir:max [ fhir:v "1" ] ; fhir:base [ fhir:path [ fhir:v "Extension.url" ] ; fhir:min [ fhir:v "1"^^xsd:nonNegativeInteger ] ; fhir:max [ fhir:v "1" ] ] ; ( fhir:type [ ( fhir:extension [ fhir:url [ fhir:v "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"^^xsd:anyURI ] ; fhir:value [ a fhir:url ; fhir:v "uri"^^xsd:anyURI ] ] ) ; fhir:code [ fhir:v "http://hl7.org/fhirpath/System.String"^^xsd:anyURI ] ] ) ; fhir:fixed [ a fhir:uri ; fhir:v "http://hl7.org/fhir/StructureDefinition/rendering-style"^^xsd:anyURI ] ; fhir:isModifier [ fhir:v false ] ; fhir:isSummary [ fhir:v false ] ; ( fhir:mapping [ fhir:identity [ fhir:v "rim" ] ; fhir:map [ fhir:v "N/A" ] ] ) ] [ fhir:id [ fhir:v "Extension.value[x]" ] ; fhir:path [ fhir:v "Extension.value[x]" ] ; fhir:short [ fhir:v "Value of extension" ] ; fhir:definition [ fhir:v "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R5/extensibility.html) for a list)." ] ; fhir:min [ fhir:v "1"^^xsd:nonNegativeInteger ] ; fhir:max [ fhir:v "1" ] ; fhir:base [ fhir:path [ fhir:v "Extension.value[x]" ] ; fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ; fhir:max [ fhir:v "1" ] ] ; ( fhir:type [ fhir:code [ fhir:v "string"^^xsd:anyURI ] ] ) ; ( fhir:condition [ fhir:v "ext-1" ] ) ; ( fhir:constraint [ fhir:key [ fhir:v "ele-1" ] ; fhir:severity [ fhir:v "error" ] ; fhir:human [ fhir:v "All FHIR elements must have a @value or children" ] ; fhir:expression [ fhir:v "hasValue() or (children().count() > id.count())" ] ; fhir:source [ fhir:v "http://hl7.org/fhir/StructureDefinition/Element"^^xsd:anyURI ; fhir:link <http://hl7.org/fhir/StructureDefinition/Element> ] ] ) ; fhir:isModifier [ fhir:v false ] ; fhir:isSummary [ fhir:v false ] ; ( fhir:mapping [ fhir:identity [ fhir:v "rim" ] ; fhir:map [ fhir:v "N/A" ] ] ) ] ) ] ; # fhir:differential [ ( fhir:element [ fhir:id [ fhir:v "Extension" ] ; fhir:path [ fhir:v "Extension" ] ; fhir:short [ fhir:v "Html style value" ] ; fhir:definition [ fhir:v "Indicates an HTML style that should be applied when rendering this element." ] ; fhir:comment [ fhir:v "This extension would be equivalent to setting the HTML \"style\" attribute on the root element for the element containing the extension.\n\nNOTE: HTML styles can include references to external content (images, fonts, etc.), which may constitute a security issue, as resolving the link can allow tracking. See [here for more detail](http://hl7.org/fhir/security.html#narrative).\n\nFor questionnaires, see additional guidance and examples in the [SDC implementation guide](http://hl7.org/fhir/uv/sdc/2025Jan/rendering.html#rendering-style). This style applies to the base string. If there is also a rendering-xhtml or rendering-markdown extension, they must declare any relevant styles within those extension values.\n\nSetting styles on elements can be risky. It presumes knowledge of how elements are rendered \"by default\". For example, setting the color of an element to 'blue' to highlight it might be fine - unless the default background color for a particular renderer is already blue. As well, it's not a given that all elements will be represented by a single HTML element. One element might be referenced by a collection of table cells that span rows and columns. Setting a border style on all of those cells wouldn't give the desired results and auto-tweaking the border style on each cell (deciding whether the border is top,left, right, etc.) would require complex coding. Finally, systems might not be using HTML for their UI at all and will need to map the specified styles to their own UI mechanism. For this reason, this element is best used when:\na) the default UI characteristics are already well understood (because the specification applies to a single system or to a set of systems that are already required to comply with specific UI expectations\nb) the set of allowed style values is tightly controlled to only those that are necessary and sensible in that context" ] ; fhir:min [ fhir:v "0"^^xsd:nonNegativeInteger ] ; fhir:max [ fhir:v "1" ] ; ( fhir:mapping [ fhir:identity [ fhir:v "rim" ] ; fhir:map [ fhir:v "N/A" ] ] ) ] [ fhir:id [ fhir:v "Extension.extension" ] ; fhir:path [ fhir:v "Extension.extension" ] ; fhir:max [ fhir:v "0" ] ] [ fhir:id [ fhir:v "Extension.url" ] ; fhir:path [ fhir:v "Extension.url" ] ; fhir:fixed [ a fhir:uri ; fhir:v "http://hl7.org/fhir/StructureDefinition/rendering-style"^^xsd:anyURI ] ] [ fhir:id [ fhir:v "Extension.value[x]" ] ; fhir:path [ fhir:v "Extension.value[x]" ] ; fhir:min [ fhir:v "1"^^xsd:nonNegativeInteger ] ; ( fhir:type [ fhir:code [ fhir:v "string"^^xsd:anyURI ] ] ) ] ) ] . #
IG © 2022+ HL7 International / FHIR Infrastructure. Package hl7.fhir.uv.extensions#5.3.0-ballot based on FHIR 5.0.0. Generated 2025-08-01
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