codes are under other codes, and imply that the code they are under also applies</td>
    </tr>
    <tr>
      <td>System</td>
      <td>The source of the definition of the code (when the value set draws in codes defined elsewhere)</td>
    </tr>
    <tr>
      <td>Code</td>
      <td>The code (used as the code in the resource instance)</td>
    </tr>
    <tr>
      <td>Display</td>
      <td>The display (used in the <i>display</i> element of a <a href="http://hl7.org/fhir/R4/datatypes.html#Coding">Coding</