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{
 "resourceType": "StructureDefinition",
 "id": "ext-R4-SS.str.isotope",
 "text": {
 "status": "extensions",
 "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\">Generated Narrative: StructureDefinition ext-R4-SS.str.isotope<a name=\"ext-R4-SS.str.isotope\"> </a><a name=\"hcext-R4-SS.str.isotope\"> </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 &amp; Constraints</a><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></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-ext-R4-SS.str.isotope-definitions.html#Extension\" title=\"R4: `SubstanceSpecification.structure.isotope` (new:BackboneElement)\">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..*</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/R4B/extensibility.html#Extension\">Extension(4.3.0)</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\">R4: Applicable for single substances that contain a radionuclide or a non-natural isotopic ratio (new) </td></tr>\r\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_bck13.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\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension\">Slices for extension</a><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\">0..*</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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/extensibility.html#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\">Extension Slice: Unordered, Open by value:url </td></tr>\r\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_bck135.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_slice_item.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Slice Item\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:identifier\" title=\"Slice identifier: R4: `SubstanceSpecification.structure.isotope.identifier` (new:Identifier)\">extension:identifier</a><a name=\"Extension.extension.2\"> </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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/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\">R4: Substance identifier for each non-natural or radioisotope (new) </td></tr>\r\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_bck1350.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:identifier.url\">url</a><a name=\"Extension.extension.url\"> </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..1</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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/datatypes.html#uri\">uri</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\">&quot;identifier&quot;</td></tr>\r\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_bck1340.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_datatype.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:identifier.value[x]\" title=\"Substance identifier for each non-natural or radioisotope.\">value[x]</a><a name=\"Extension.extension.value_x_\"> </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/R4B/datatypes.html#Identifier\">Identifier</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\">Substance identifier for each non-natural or radioisotope</td></tr>\r\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_bck135.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_slice_item.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Slice Item\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:name\" title=\"Slice name: R4: `SubstanceSpecification.structure.isotope.name` (new:CodeableConcept)\">extension:name</a><a name=\"Extension.extension.3\"> </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\">0..1</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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/extensibility.html#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\">R4: Substance name for each non-natural or radioisotope (new) </td></tr>\r\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_bck1350.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slice.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-ext-R4-SS.str.isotope-definitions.html#Extension.extension:name.url\">url</a><a name=\"Extension.extension.url.2\"> </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\">1..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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/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\">&quot;name&quot;</td></tr>\r\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_bck1340.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_datatype.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:name.value[x]\" title=\"Substance name for each non-natural or radioisotope.\">value[x]</a><a name=\"Extension.extension.value_x_.2\"> </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\">0..1</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/R4B/datatypes.html#CodeableConcept\">CodeableConcept</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\">Substance name for each non-natural or radioisotope</td></tr>\r\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_bck135.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_slice_item.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Slice Item\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:substitution\" title=\"Slice substitution: R4: `SubstanceSpecification.structure.isotope.substitution` (new:CodeableConcept)\">extension:substitution</a><a name=\"Extension.extension.4\"> </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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/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\">R4: The type of isotopic substitution present in a single substance (new) </td></tr>\r\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_bck1350.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:substitution.url\">url</a><a name=\"Extension.extension.url.3\"> </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..1</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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/datatypes.html#uri\">uri</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\">&quot;substitution&quot;</td></tr>\r\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_bck1340.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_datatype.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:substitution.value[x]\" title=\"The type of isotopic substitution present in a single substance.\">value[x]</a><a name=\"Extension.extension.value_x_.3\"> </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/R4B/datatypes.html#CodeableConcept\">CodeableConcept</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\">The type of isotopic substitution present in a single substance</td></tr>\r\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_bck135.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_slice_item.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Slice Item\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:halfLife\" title=\"Slice halfLife: R4: `SubstanceSpecification.structure.isotope.halfLife` (new:Quantity)\">extension:halfLife</a><a name=\"Extension.extension.5\"> </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\">0..1</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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/extensibility.html#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\">R4: Half life - for a non-natural nuclide (new) </td></tr>\r\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_bck1350.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slice.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-ext-R4-SS.str.isotope-definitions.html#Extension.extension:halfLife.url\">url</a><a name=\"Extension.extension.url.4\"> </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\">1..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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/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\">&quot;halfLife&quot;</td></tr>\r\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_bck1340.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_datatype.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:halfLife.value[x]\" title=\"Half life - for a non-natural nuclide.\">value[x]</a><a name=\"Extension.extension.value_x_.4\"> </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\">0..1</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/R4B/datatypes.html#Quantity\">Quantity</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\">Half life - for a non-natural nuclide</td></tr>\r\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_bck125.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_slice_item.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Slice Item\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:molecularWeight\" title=\"Slice molecularWeight: R4: `SubstanceSpecification.structure.isotope.molecularWeight` (new:BackboneElement)\">extension:molecularWeight</a><a name=\"Extension.extension.6\"> </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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/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\">R4: The molecular weight or weight range (for proteins, polymers or nucleic acids) (new) </td></tr>\r\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_bck1253.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slice.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\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:molecularWeight.extension\">Slices for extension</a><a name=\"Extension.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\">0..*</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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/extensibility.html#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\">Extension Slice: Unordered, Open by value:url </td></tr>\r\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_bck12535.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_slice_item.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Slice Item\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:molecularWeight.extension:method\" title=\"Slice method: R4: `SubstanceSpecification.structure.isotope.molecularWeight.method` (new:CodeableConcept)\">extension:method</a><a name=\"Extension.extension.extension.2\"> </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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/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\">R4: The method by which the molecular weight was determined (new) </td></tr>\r\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_bck125350.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:molecularWeight.extension:method.url\">url</a><a name=\"Extension.extension.extension.url\"> </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..1</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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/datatypes.html#uri\">uri</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\">&quot;method&quot;</td></tr>\r\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_bck125340.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_datatype.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:molecularWeight.extension:method.value[x]\" title=\"The method by which the molecular weight was determined.\">value[x]</a><a name=\"Extension.extension.extension.value_x_\"> </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/R4B/datatypes.html#CodeableConcept\">CodeableConcept</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\">The method by which the molecular weight was determined</td></tr>\r\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_bck12535.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_slice_item.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Slice Item\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:molecularWeight.extension:type\" title=\"Slice type: R4: `SubstanceSpecification.structure.isotope.molecularWeight.type` (new:CodeableConcept)\">extension:type</a><a name=\"Extension.extension.extension.3\"> </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\">0..1</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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/extensibility.html#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\">R4: Type of molecular weight such as exact, average (also known as. number average), weight average (new) </td></tr>\r\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_bck125350.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slice.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-ext-R4-SS.str.isotope-definitions.html#Extension.extension:molecularWeight.extension:type.url\">url</a><a name=\"Extension.extension.extension.url.2\"> </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\">1..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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/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\">&quot;type&quot;</td></tr>\r\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_bck125340.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_datatype.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:molecularWeight.extension:type.value[x]\" title=\"Type of molecular weight such as exact, average (also known as. number average), weight average.\">value[x]</a><a name=\"Extension.extension.extension.value_x_.2\"> </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\">0..1</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/R4B/datatypes.html#CodeableConcept\">CodeableConcept</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\">Type of molecular weight such as exact, average (also known as. number average), weight average</td></tr>\r\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_bck12525.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_slice_item.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Slice Item\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:molecularWeight.extension:amount\" title=\"Slice amount: R4: `SubstanceSpecification.structure.isotope.molecularWeight.amount` (new:Quantity)\">extension:amount</a><a name=\"Extension.extension.extension.4\"> </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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/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\">R4: Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field (new) </td></tr>\r\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_bck125250.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:molecularWeight.extension:amount.url\">url</a><a name=\"Extension.extension.extension.url.3\"> </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..1</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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/datatypes.html#uri\">uri</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\">&quot;amount&quot;</td></tr>\r\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_bck125240.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_datatype.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:molecularWeight.extension:amount.value[x]\" title=\"Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field.\">value[x]</a><a name=\"Extension.extension.extension.value_x_.3\"> </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/R4B/datatypes.html#Quantity\">Quantity</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\">Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field</td></tr>\r\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_bck1250.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_slice.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:molecularWeight.url\">url</a><a name=\"Extension.extension.url.5\"> </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..1</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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/datatypes.html#uri\">uri</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\">&quot;molecularWeight&quot;</td></tr>\r\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_bck1240.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end_slice.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 style=\"text-decoration:line-through; text-decoration:line-through\" href=\"StructureDefinition-ext-R4-SS.str.isotope-definitions.html#Extension.extension:molecularWeight.value[x]\">value[x]</a><a name=\"Extension.extension.value_x_.5\"> </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..0</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\">Value of extension</td></tr>\r\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_element.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-ext-R4-SS.str.isotope-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: #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..1</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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4B/datatypes.html#uri\">uri</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\">&quot;http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.structure.isotope&quot;</td></tr>\r\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_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_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a style=\"text-decoration:line-through; text-decoration:line-through\" href=\"StructureDefinition-ext-R4-SS.str.isotope-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: 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..0</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\">Value of extension</td></tr>\r\n<tr><td colspan=\"5\" class=\"hierarchy\"> <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\"/> Documentation for this format</a></td></tr></table></div>"
 },
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
 "valueCode": "fhir"
 },
 {
 "extension": [
 {
 "url": "packageId",
 "valueId": "hl7.fhir.uv.xver-r4.r4b"
 },
 {
 "url": "version",
 "valueString": "0.1.0"
 },
 {
 "url": "uri",
 "valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r4b"
 }
 ],
 "url": "http://hl7.org/fhir/StructureDefinition/package-source"
 },
 {
 "extension": [
 {
 "url": "startFhirVersion",
 "valueCode": "4.3"
 },
 {
 "url": "endFhirVersion",
 "valueCode": "4.3"
 }
 ],
 "url": "http://hl7.org/fhir/StructureDefinition/version-specific-use"
 },
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
 "valueInteger": 0,
 "_valueInteger": {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
 "valueCanonical": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r4b"
 }
 ]
 }
 },
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
 "valueCode": "trial-use",
 "_valueCode": {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
 "valueCanonical": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r4b"
 }
 ]
 }
 }
 ],
 "url": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.structure.isotope",
 "version": "0.1.0",
 "name": "ExtensionSubstanceSpecification_Structure_Isotope",
 "title": "R4: Applicable for single substances that contain a radionuclide or a non-natural isotopic ratio (new)",
 "status": "active",
 "experimental": false,
 "date": "2026-03-17T21:02:03.8104715+00:00",
 "publisher": "FHIR Infrastructure",
 "contact": [
 {
 "name": "FHIR Infrastructure",
 "telecom": [
 {
 "system": "url",
 "value": "http://www.hl7.org/Special/committees/fiwg"
 }
 ]
 }
 ],
 "description": "R4: `SubstanceSpecification.structure.isotope` (new:BackboneElement)",
 "jurisdiction": [
 {
 "coding": [
 {
 "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
 "code": "001",
 "display": "World"
 }
 ]
 }
 ],
 "purpose": "This extension is part of the cross-version definitions generated to enable use of the\r\nelement `SubstanceSpecification.structure.isotope` as defined in FHIR R4\r\nin FHIR R4B.\r\n\r\nThe source element is defined as:\r\n`SubstanceSpecification.structure.isotope` 0..* `BackboneElement`\r\n\r\nFollowing are the generation technical comments:\r\nElement `SubstanceSpecification.structure.isotope` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "fhirVersion": "4.3.0",
 "mapping": [
 {
 "identity": "rim",
 "uri": "http://hl7.org/v3",
 "name": "RIM Mapping"
 }
 ],
 "kind": "complex-type",
 "abstract": false,
 "context": [
 {
 "type": "element",
 "expression": "SubstanceDefinition.structure"
 }
 ],
 "type": "Extension",
 "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension|4.3.0",
 "derivation": "constraint",
 "snapshot": {
 "extension": [
 {
 "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
 "valueString": "4.3.0"
 }
 ],
 "element": [
 {
 "id": "Extension",
 "path": "Extension",
 "short": "R4: Applicable for single substances that contain a radionuclide or a non-natural isotopic ratio (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope` (new:BackboneElement)",
 "comment": "Element `SubstanceSpecification.structure.isotope` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "*",
 "base": {
 "path": "Extension",
 "min": 0,
 "max": "*"
 },
 "condition": [
 "ele-1"
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children unless an empty Parameters resource",
 "expression": "hasValue() or (children().count() > id.count()) or $this is Parameters",
 "xpath": "@value|f:*|h:div|self::f:Parameters",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false
 },
 {
 "id": "Extension.id",
 "path": "Extension.id",
 "representation": [
 "xmlAttr"
 ],
 "short": "Unique id for inter-element referencing",
 "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.id",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "id"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension",
 "path": "Extension.extension",
 "slicing": {
 "discriminator": [
 {
 "type": "value",
 "path": "url"
 }
 ],
 "description": "Extensions are always sliced by (at least) url",
 "ordered": false,
 "rules": "open"
 },
 "short": "Extension",
 "definition": "An Extension",
 "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|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false
 },
 {
 "id": "Extension.extension:identifier",
 "path": "Extension.extension",
 "sliceName": "identifier",
 "short": "R4: Substance identifier for each non-natural or radioisotope (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.identifier` (new:Identifier)",
 "comment": "Element `SubstanceSpecification.structure.isotope.identifier` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.identifier` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.identifier` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.identifier` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.identifier` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.identifier` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false
 },
 {
 "id": "Extension.extension:identifier.id",
 "path": "Extension.extension.id",
 "representation": [
 "xmlAttr"
 ],
 "short": "Unique id for inter-element referencing",
 "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.id",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "id"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:identifier.extension",
 "path": "Extension.extension.extension",
 "slicing": {
 "discriminator": [
 {
 "type": "value",
 "path": "url"
 }
 ],
 "description": "Extensions are always sliced by (at least) url",
 "rules": "open"
 },
 "short": "Additional content defined by implementations",
 "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
 "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
 "alias": [
 "extensions",
 "user content"
 ],
 "min": 0,
 "max": "*",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:identifier.url",
 "path": "Extension.extension.url",
 "representation": [
 "xmlAttr"
 ],
 "short": "identifies the meaning of the extension",
 "definition": "Source of the definition for the extension code - a logical name or a URL.",
 "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "uri"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "fixedUri": "identifier",
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:identifier.value[x]",
 "path": "Extension.extension.value[x]",
 "short": "Substance identifier for each non-natural or radioisotope",
 "definition": "Substance identifier for each non-natural or radioisotope.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "min": 0,
 "max": "1"
 },
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:name",
 "path": "Extension.extension",
 "sliceName": "name",
 "short": "R4: Substance name for each non-natural or radioisotope (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.name` (new:CodeableConcept)",
 "comment": "Element `SubstanceSpecification.structure.isotope.name` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.name` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.name` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.name` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.name` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.name` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false
 },
 {
 "id": "Extension.extension:name.id",
 "path": "Extension.extension.id",
 "representation": [
 "xmlAttr"
 ],
 "short": "Unique id for inter-element referencing",
 "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.id",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "id"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:name.extension",
 "path": "Extension.extension.extension",
 "slicing": {
 "discriminator": [
 {
 "type": "value",
 "path": "url"
 }
 ],
 "description": "Extensions are always sliced by (at least) url",
 "rules": "open"
 },
 "short": "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|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:name.url",
 "path": "Extension.extension.url",
 "representation": [
 "xmlAttr"
 ],
 "short": "identifies the meaning of the extension",
 "definition": "Source of the definition for the extension code - a logical name or a URL.",
 "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "uri"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "fixedUri": "name",
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:name.value[x]",
 "path": "Extension.extension.value[x]",
 "short": "Substance name for each non-natural or radioisotope",
 "definition": "Substance name for each non-natural or radioisotope.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:substitution",
 "path": "Extension.extension",
 "sliceName": "substitution",
 "short": "R4: The type of isotopic substitution present in a single substance (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.substitution` (new:CodeableConcept)",
 "comment": "Element `SubstanceSpecification.structure.isotope.substitution` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.substitution` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.substitution` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.substitution` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.substitution` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.substitution` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false
 },
 {
 "id": "Extension.extension:substitution.id",
 "path": "Extension.extension.id",
 "representation": [
 "xmlAttr"
 ],
 "short": "Unique id for inter-element referencing",
 "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.id",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "id"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:substitution.extension",
 "path": "Extension.extension.extension",
 "slicing": {
 "discriminator": [
 {
 "type": "value",
 "path": "url"
 }
 ],
 "description": "Extensions are always sliced by (at least) url",
 "rules": "open"
 },
 "short": "Additional content defined by implementations",
 "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
 "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
 "alias": [
 "extensions",
 "user content"
 ],
 "min": 0,
 "max": "*",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:substitution.url",
 "path": "Extension.extension.url",
 "representation": [
 "xmlAttr"
 ],
 "short": "identifies the meaning of the extension",
 "definition": "Source of the definition for the extension code - a logical name or a URL.",
 "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "uri"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "fixedUri": "substitution",
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:substitution.value[x]",
 "path": "Extension.extension.value[x]",
 "short": "The type of isotopic substitution present in a single substance",
 "definition": "The type of isotopic substitution present in a single substance.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:halfLife",
 "path": "Extension.extension",
 "sliceName": "halfLife",
 "short": "R4: Half life - for a non-natural nuclide (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.halfLife` (new:Quantity)",
 "comment": "Element `SubstanceSpecification.structure.isotope.halfLife` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.halfLife` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.halfLife` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.halfLife` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.halfLife` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.halfLife` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false
 },
 {
 "id": "Extension.extension:halfLife.id",
 "path": "Extension.extension.id",
 "representation": [
 "xmlAttr"
 ],
 "short": "Unique id for inter-element referencing",
 "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.id",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "id"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:halfLife.extension",
 "path": "Extension.extension.extension",
 "slicing": {
 "discriminator": [
 {
 "type": "value",
 "path": "url"
 }
 ],
 "description": "Extensions are always sliced by (at least) url",
 "rules": "open"
 },
 "short": "Additional content defined by implementations",
 "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
 "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
 "alias": [
 "extensions",
 "user content"
 ],
 "min": 0,
 "max": "*",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:halfLife.url",
 "path": "Extension.extension.url",
 "representation": [
 "xmlAttr"
 ],
 "short": "identifies the meaning of the extension",
 "definition": "Source of the definition for the extension code - a logical name or a URL.",
 "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "uri"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "fixedUri": "halfLife",
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:halfLife.value[x]",
 "path": "Extension.extension.value[x]",
 "short": "Half life - for a non-natural nuclide",
 "definition": "Half life - for a non-natural nuclide.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight",
 "path": "Extension.extension",
 "sliceName": "molecularWeight",
 "short": "R4: The molecular weight or weight range (for proteins, polymers or nucleic acids) (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.molecularWeight` (new:BackboneElement)",
 "comment": "Element `SubstanceSpecification.structure.isotope.molecularWeight` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.molecularWeight` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false
 },
 {
 "id": "Extension.extension:molecularWeight.id",
 "path": "Extension.extension.id",
 "representation": [
 "xmlAttr"
 ],
 "short": "Unique id for inter-element referencing",
 "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.id",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "id"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension",
 "path": "Extension.extension.extension",
 "slicing": {
 "discriminator": [
 {
 "type": "value",
 "path": "url"
 }
 ],
 "description": "Extensions are always sliced by (at least) url",
 "ordered": false,
 "rules": "open"
 },
 "short": "Extension",
 "definition": "An Extension",
 "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|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false
 },
 {
 "id": "Extension.extension:molecularWeight.extension:method",
 "path": "Extension.extension.extension",
 "sliceName": "method",
 "short": "R4: The method by which the molecular weight was determined (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.molecularWeight.method` (new:CodeableConcept)",
 "comment": "Element `SubstanceSpecification.structure.isotope.molecularWeight.method` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope.molecularWeight` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.method` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.method` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.molecularWeight.method` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope.molecularWeight` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.method` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.method` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false
 },
 {
 "id": "Extension.extension:molecularWeight.extension:method.id",
 "path": "Extension.extension.extension.id",
 "representation": [
 "xmlAttr"
 ],
 "short": "Unique id for inter-element referencing",
 "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.id",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "id"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension:method.extension",
 "path": "Extension.extension.extension.extension",
 "slicing": {
 "discriminator": [
 {
 "type": "value",
 "path": "url"
 }
 ],
 "description": "Extensions are always sliced by (at least) url",
 "rules": "open"
 },
 "short": "Additional content defined by implementations",
 "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
 "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
 "alias": [
 "extensions",
 "user content"
 ],
 "min": 0,
 "max": "*",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension:method.url",
 "path": "Extension.extension.extension.url",
 "representation": [
 "xmlAttr"
 ],
 "short": "identifies the meaning of the extension",
 "definition": "Source of the definition for the extension code - a logical name or a URL.",
 "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "uri"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "fixedUri": "method",
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension:method.value[x]",
 "path": "Extension.extension.extension.value[x]",
 "short": "The method by which the molecular weight was determined",
 "definition": "The method by which the molecular weight was determined.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension:type",
 "path": "Extension.extension.extension",
 "sliceName": "type",
 "short": "R4: Type of molecular weight such as exact, average (also known as. number average), weight average (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.molecularWeight.type` (new:CodeableConcept)",
 "comment": "Element `SubstanceSpecification.structure.isotope.molecularWeight.type` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope.molecularWeight` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.type` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.type` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.molecularWeight.type` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope.molecularWeight` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.type` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.type` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false
 },
 {
 "id": "Extension.extension:molecularWeight.extension:type.id",
 "path": "Extension.extension.extension.id",
 "representation": [
 "xmlAttr"
 ],
 "short": "Unique id for inter-element referencing",
 "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.id",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "id"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension:type.extension",
 "path": "Extension.extension.extension.extension",
 "slicing": {
 "discriminator": [
 {
 "type": "value",
 "path": "url"
 }
 ],
 "description": "Extensions are always sliced by (at least) url",
 "rules": "open"
 },
 "short": "Additional content defined by implementations",
 "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
 "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
 "alias": [
 "extensions",
 "user content"
 ],
 "min": 0,
 "max": "*",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension:type.url",
 "path": "Extension.extension.extension.url",
 "representation": [
 "xmlAttr"
 ],
 "short": "identifies the meaning of the extension",
 "definition": "Source of the definition for the extension code - a logical name or a URL.",
 "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "uri"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "fixedUri": "type",
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension:type.value[x]",
 "path": "Extension.extension.extension.value[x]",
 "short": "Type of molecular weight such as exact, average (also known as. number average), weight average",
 "definition": "Type of molecular weight such as exact, average (also known as. number average), weight average.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension:amount",
 "path": "Extension.extension.extension",
 "sliceName": "amount",
 "short": "R4: Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.molecularWeight.amount` (new:Quantity)",
 "comment": "Element `SubstanceSpecification.structure.isotope.molecularWeight.amount` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope.molecularWeight` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.amount` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.amount` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.molecularWeight.amount` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope.molecularWeight` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.amount` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.amount` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false
 },
 {
 "id": "Extension.extension:molecularWeight.extension:amount.id",
 "path": "Extension.extension.extension.id",
 "representation": [
 "xmlAttr"
 ],
 "short": "Unique id for inter-element referencing",
 "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Element.id",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "id"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension:amount.extension",
 "path": "Extension.extension.extension.extension",
 "slicing": {
 "discriminator": [
 {
 "type": "value",
 "path": "url"
 }
 ],
 "description": "Extensions are always sliced by (at least) url",
 "rules": "open"
 },
 "short": "Additional content defined by implementations",
 "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
 "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
 "alias": [
 "extensions",
 "user content"
 ],
 "min": 0,
 "max": "*",
 "base": {
 "path": "Element.extension",
 "min": 0,
 "max": "*"
 },
 "type": [
 {
 "code": "Extension"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 },
 {
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "n/a"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension:amount.url",
 "path": "Extension.extension.extension.url",
 "representation": [
 "xmlAttr"
 ],
 "short": "identifies the meaning of the extension",
 "definition": "Source of the definition for the extension code - a logical name or a URL.",
 "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "uri"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "fixedUri": "amount",
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension:amount.value[x]",
 "path": "Extension.extension.extension.value[x]",
 "short": "Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field",
 "definition": "Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "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|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.url",
 "path": "Extension.extension.url",
 "representation": [
 "xmlAttr"
 ],
 "short": "identifies the meaning of the extension",
 "definition": "Source of the definition for the extension code - a logical name or a URL.",
 "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "uri"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "fixedUri": "molecularWeight",
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.value[x]",
 "path": "Extension.extension.value[x]",
 "short": "Value of extension",
 "definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4B/extensibility.html) for a list).",
 "min": 0,
 "max": "0",
 "base": {
 "path": "Extension.value[x]",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "code": "base64Binary"
 },
 {
 "code": "boolean"
 },
 {
 "code": "canonical"
 },
 {
 "code": "code"
 },
 {
 "code": "date"
 },
 {
 "code": "dateTime"
 },
 {
 "code": "decimal"
 },
 {
 "code": "id"
 },
 {
 "code": "instant"
 },
 {
 "code": "integer"
 },
 {
 "code": "markdown"
 },
 {
 "code": "oid"
 },
 {
 "code": "positiveInt"
 },
 {
 "code": "string"
 },
 {
 "code": "time"
 },
 {
 "code": "unsignedInt"
 },
 {
 "code": "uri"
 },
 {
 "code": "url"
 },
 {
 "code": "uuid"
 },
 {
 "code": "Address"
 },
 {
 "code": "Age"
 },
 {
 "code": "Annotation"
 },
 {
 "code": "Attachment"
 },
 {
 "code": "CodeableConcept"
 },
 {
 "code": "CodeableReference"
 },
 {
 "code": "Coding"
 },
 {
 "code": "ContactPoint"
 },
 {
 "code": "Count"
 },
 {
 "code": "Distance"
 },
 {
 "code": "Duration"
 },
 {
 "code": "HumanName"
 },
 {
 "code": "Identifier"
 },
 {
 "code": "Money"
 },
 {
 "code": "Period"
 },
 {
 "code": "Quantity"
 },
 {
 "code": "Range"
 },
 {
 "code": "Ratio"
 },
 {
 "code": "RatioRange"
 },
 {
 "code": "Reference"
 },
 {
 "code": "SampledData"
 },
 {
 "code": "Signature"
 },
 {
 "code": "Timing"
 },
 {
 "code": "ContactDetail"
 },
 {
 "code": "Contributor"
 },
 {
 "code": "DataRequirement"
 },
 {
 "code": "Expression"
 },
 {
 "code": "ParameterDefinition"
 },
 {
 "code": "RelatedArtifact"
 },
 {
 "code": "TriggerDefinition"
 },
 {
 "code": "UsageContext"
 },
 {
 "code": "Dosage"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.url",
 "path": "Extension.url",
 "representation": [
 "xmlAttr"
 ],
 "short": "identifies the meaning of the extension",
 "definition": "Source of the definition for the extension code - a logical name or a URL.",
 "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "type": [
 {
 "extension": [
 {
 "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
 "valueUrl": "uri"
 }
 ],
 "code": "http://hl7.org/fhirpath/System.String"
 }
 ],
 "fixedUri": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.structure.isotope",
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 },
 {
 "id": "Extension.value[x]",
 "path": "Extension.value[x]",
 "short": "Value of extension",
 "definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4B/extensibility.html) for a list).",
 "min": 0,
 "max": "0",
 "base": {
 "path": "Extension.value[x]",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "code": "base64Binary"
 },
 {
 "code": "boolean"
 },
 {
 "code": "canonical"
 },
 {
 "code": "code"
 },
 {
 "code": "date"
 },
 {
 "code": "dateTime"
 },
 {
 "code": "decimal"
 },
 {
 "code": "id"
 },
 {
 "code": "instant"
 },
 {
 "code": "integer"
 },
 {
 "code": "markdown"
 },
 {
 "code": "oid"
 },
 {
 "code": "positiveInt"
 },
 {
 "code": "string"
 },
 {
 "code": "time"
 },
 {
 "code": "unsignedInt"
 },
 {
 "code": "uri"
 },
 {
 "code": "url"
 },
 {
 "code": "uuid"
 },
 {
 "code": "Address"
 },
 {
 "code": "Age"
 },
 {
 "code": "Annotation"
 },
 {
 "code": "Attachment"
 },
 {
 "code": "CodeableConcept"
 },
 {
 "code": "CodeableReference"
 },
 {
 "code": "Coding"
 },
 {
 "code": "ContactPoint"
 },
 {
 "code": "Count"
 },
 {
 "code": "Distance"
 },
 {
 "code": "Duration"
 },
 {
 "code": "HumanName"
 },
 {
 "code": "Identifier"
 },
 {
 "code": "Money"
 },
 {
 "code": "Period"
 },
 {
 "code": "Quantity"
 },
 {
 "code": "Range"
 },
 {
 "code": "Ratio"
 },
 {
 "code": "RatioRange"
 },
 {
 "code": "Reference"
 },
 {
 "code": "SampledData"
 },
 {
 "code": "Signature"
 },
 {
 "code": "Timing"
 },
 {
 "code": "ContactDetail"
 },
 {
 "code": "Contributor"
 },
 {
 "code": "DataRequirement"
 },
 {
 "code": "Expression"
 },
 {
 "code": "ParameterDefinition"
 },
 {
 "code": "RelatedArtifact"
 },
 {
 "code": "TriggerDefinition"
 },
 {
 "code": "UsageContext"
 },
 {
 "code": "Dosage"
 }
 ],
 "constraint": [
 {
 "key": "ele-1",
 "severity": "error",
 "human": "All FHIR elements must have a @value or children",
 "expression": "hasValue() or (children().count() > id.count())",
 "xpath": "@value|f:*|h:div",
 "source": "http://hl7.org/fhir/StructureDefinition/Element|4.3.0"
 }
 ],
 "isModifier": false,
 "isSummary": false,
 "mapping": [
 {
 "identity": "rim",
 "map": "N/A"
 }
 ]
 }
 ]
 },
 "differential": {
 "element": [
 {
 "id": "Extension",
 "path": "Extension",
 "short": "R4: Applicable for single substances that contain a radionuclide or a non-natural isotopic ratio (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope` (new:BackboneElement)",
 "comment": "Element `SubstanceSpecification.structure.isotope` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "*",
 "base": {
 "path": "Extension",
 "min": 0,
 "max": "*"
 },
 "isModifier": false
 },
 {
 "id": "Extension.extension",
 "path": "Extension.extension",
 "slicing": {
 "discriminator": [
 {
 "type": "value",
 "path": "url"
 }
 ],
 "ordered": false,
 "rules": "open"
 },
 "min": 0,
 "max": "*",
 "base": {
 "path": "Extension.extension",
 "min": 0,
 "max": "*"
 }
 },
 {
 "id": "Extension.extension:identifier",
 "path": "Extension.extension",
 "sliceName": "identifier",
 "short": "R4: Substance identifier for each non-natural or radioisotope (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.identifier` (new:Identifier)",
 "comment": "Element `SubstanceSpecification.structure.isotope.identifier` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.identifier` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.identifier` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.identifier` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.identifier` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.identifier` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.extension",
 "min": 0,
 "max": "*"
 }
 },
 {
 "id": "Extension.extension:identifier.url",
 "path": "Extension.extension.url",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "fixedUri": "identifier"
 },
 {
 "id": "Extension.extension:identifier.value[x]",
 "path": "Extension.extension.value[x]",
 "short": "Substance identifier for each non-natural or radioisotope",
 "definition": "Substance identifier for each non-natural or radioisotope.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "code": "Identifier"
 }
 ]
 },
 {
 "id": "Extension.extension:name",
 "path": "Extension.extension",
 "sliceName": "name",
 "short": "R4: Substance name for each non-natural or radioisotope (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.name` (new:CodeableConcept)",
 "comment": "Element `SubstanceSpecification.structure.isotope.name` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.name` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.name` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.name` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.name` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.name` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.extension",
 "min": 0,
 "max": "*"
 }
 },
 {
 "id": "Extension.extension:name.url",
 "path": "Extension.extension.url",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "fixedUri": "name"
 },
 {
 "id": "Extension.extension:name.value[x]",
 "path": "Extension.extension.value[x]",
 "short": "Substance name for each non-natural or radioisotope",
 "definition": "Substance name for each non-natural or radioisotope.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "code": "CodeableConcept"
 }
 ]
 },
 {
 "id": "Extension.extension:substitution",
 "path": "Extension.extension",
 "sliceName": "substitution",
 "short": "R4: The type of isotopic substitution present in a single substance (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.substitution` (new:CodeableConcept)",
 "comment": "Element `SubstanceSpecification.structure.isotope.substitution` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.substitution` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.substitution` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.substitution` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.substitution` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.substitution` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.extension",
 "min": 0,
 "max": "*"
 }
 },
 {
 "id": "Extension.extension:substitution.url",
 "path": "Extension.extension.url",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "fixedUri": "substitution"
 },
 {
 "id": "Extension.extension:substitution.value[x]",
 "path": "Extension.extension.value[x]",
 "short": "The type of isotopic substitution present in a single substance",
 "definition": "The type of isotopic substitution present in a single substance.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "code": "CodeableConcept"
 }
 ]
 },
 {
 "id": "Extension.extension:halfLife",
 "path": "Extension.extension",
 "sliceName": "halfLife",
 "short": "R4: Half life - for a non-natural nuclide (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.halfLife` (new:Quantity)",
 "comment": "Element `SubstanceSpecification.structure.isotope.halfLife` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.halfLife` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.halfLife` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.halfLife` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.halfLife` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.halfLife` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.extension",
 "min": 0,
 "max": "*"
 }
 },
 {
 "id": "Extension.extension:halfLife.url",
 "path": "Extension.extension.url",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "fixedUri": "halfLife"
 },
 {
 "id": "Extension.extension:halfLife.value[x]",
 "path": "Extension.extension.value[x]",
 "short": "Half life - for a non-natural nuclide",
 "definition": "Half life - for a non-natural nuclide.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "code": "Quantity"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight",
 "path": "Extension.extension",
 "sliceName": "molecularWeight",
 "short": "R4: The molecular weight or weight range (for proteins, polymers or nucleic acids) (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.molecularWeight` (new:BackboneElement)",
 "comment": "Element `SubstanceSpecification.structure.isotope.molecularWeight` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.molecularWeight` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.extension",
 "min": 0,
 "max": "*"
 }
 },
 {
 "id": "Extension.extension:molecularWeight.extension",
 "path": "Extension.extension.extension",
 "slicing": {
 "discriminator": [
 {
 "type": "value",
 "path": "url"
 }
 ],
 "ordered": false,
 "rules": "open"
 },
 "min": 0,
 "max": "*",
 "base": {
 "path": "Extension.extension",
 "min": 0,
 "max": "*"
 }
 },
 {
 "id": "Extension.extension:molecularWeight.extension:method",
 "path": "Extension.extension.extension",
 "sliceName": "method",
 "short": "R4: The method by which the molecular weight was determined (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.molecularWeight.method` (new:CodeableConcept)",
 "comment": "Element `SubstanceSpecification.structure.isotope.molecularWeight.method` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope.molecularWeight` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.method` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.method` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.molecularWeight.method` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope.molecularWeight` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.method` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.method` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.extension",
 "min": 0,
 "max": "*"
 }
 },
 {
 "id": "Extension.extension:molecularWeight.extension:method.url",
 "path": "Extension.extension.extension.url",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "fixedUri": "method"
 },
 {
 "id": "Extension.extension:molecularWeight.extension:method.value[x]",
 "path": "Extension.extension.extension.value[x]",
 "short": "The method by which the molecular weight was determined",
 "definition": "The method by which the molecular weight was determined.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "code": "CodeableConcept"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension:type",
 "path": "Extension.extension.extension",
 "sliceName": "type",
 "short": "R4: Type of molecular weight such as exact, average (also known as. number average), weight average (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.molecularWeight.type` (new:CodeableConcept)",
 "comment": "Element `SubstanceSpecification.structure.isotope.molecularWeight.type` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope.molecularWeight` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.type` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.type` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.molecularWeight.type` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope.molecularWeight` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.type` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.type` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.extension",
 "min": 0,
 "max": "*"
 }
 },
 {
 "id": "Extension.extension:molecularWeight.extension:type.url",
 "path": "Extension.extension.extension.url",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "fixedUri": "type"
 },
 {
 "id": "Extension.extension:molecularWeight.extension:type.value[x]",
 "path": "Extension.extension.extension.value[x]",
 "short": "Type of molecular weight such as exact, average (also known as. number average), weight average",
 "definition": "Type of molecular weight such as exact, average (also known as. number average), weight average.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "code": "CodeableConcept"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.extension:amount",
 "path": "Extension.extension.extension",
 "sliceName": "amount",
 "short": "R4: Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field (new)",
 "definition": "R4: `SubstanceSpecification.structure.isotope.molecularWeight.amount` (new:Quantity)",
 "comment": "Element `SubstanceSpecification.structure.isotope.molecularWeight.amount` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope.molecularWeight` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.amount` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.amount` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "requirements": "Element `SubstanceSpecification.structure.isotope.molecularWeight.amount` is part of an existing definition because parent element `SubstanceSpecification.structure.isotope.molecularWeight` requires a cross-version extension.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.amount` has a context of SubstanceDefinition.structure based on following the parent source element upwards and mapping to `SubstanceDefinition`.\nElement `SubstanceSpecification.structure.isotope.molecularWeight.amount` has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.extension",
 "min": 0,
 "max": "*"
 }
 },
 {
 "id": "Extension.extension:molecularWeight.extension:amount.url",
 "path": "Extension.extension.extension.url",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "fixedUri": "amount"
 },
 {
 "id": "Extension.extension:molecularWeight.extension:amount.value[x]",
 "path": "Extension.extension.extension.value[x]",
 "short": "Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field",
 "definition": "Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field.",
 "min": 0,
 "max": "1",
 "base": {
 "path": "Extension.value[x]",
 "min": 0,
 "max": "1"
 },
 "type": [
 {
 "code": "Quantity"
 }
 ]
 },
 {
 "id": "Extension.extension:molecularWeight.url",
 "path": "Extension.extension.url",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "fixedUri": "molecularWeight"
 },
 {
 "id": "Extension.extension:molecularWeight.value[x]",
 "path": "Extension.extension.value[x]",
 "min": 0,
 "max": "0",
 "base": {
 "path": "Extension.value[x]",
 "min": 0,
 "max": "1"
 }
 },
 {
 "id": "Extension.url",
 "path": "Extension.url",
 "min": 1,
 "max": "1",
 "base": {
 "path": "Extension.url",
 "min": 1,
 "max": "1"
 },
 "fixedUri": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.structure.isotope"
 },
 {
 "id": "Extension.value[x]",
 "path": "Extension.value[x]",
 "min": 0,
 "max": "0",
 "base": {
 "path": "Extension.value[x]",
 "min": 0,
 "max": "1"
 }
 }
 ]
 }
}

name : ExtensionSubstanceSpecification_Structure_Isotope

{

}