archy"><a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a></td>
<td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Unique id for inter-element referencing</td></tr>

<tr fhir="generated-heirarchy" style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white" id="ab" data-fhir="generated-heirarchy"><td style="vertical-align: top; text-align : var(--ig