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<ValueSet xmlns="http://hl7.org/fhir"> <text> <status value="generated"/> <div xmlns="http://www.w3.org/1999/xhtml"> <p>Release Date: 2014-08-07</p> <table class="grid"> <tr> <td> <b>Level</b> </td> <td> <b>Code</b> </td> <td> <b>Display</b> </td> <td> <b>Definition</b> </td> </tr> <tr> <td>1</td> <td> <span style="color: grey"> <i>(_ValueSetOperator)</i> </span> </td> <td> <a name="_ValueSetOperator"> </a> </td> <td> Operations that can be used to associate concepts in a terminology. <br/> </td> </tr> <tr> <td>2</td> <td> E <a name="E"> </a> </td> <td>exclude</td> <td> Form the set-difference with this value, i.e., exclude this element or set from the resulting set. <br/> </td> </tr> <tr> <td>2</td> <td> I <a name="I"> </a> </td> <td>include</td> <td> Form the union with this value, i.e., include this element or set in the resulting set. <br/> </td> </tr> <tr> <td>1</td> <td>A <a name="A"> </a> </td> <td>intersect</td> <td> Form the intersection with the value. <br/> </td> </tr> <tr> <td>1</td> <td>H <a name="H"> </a> </td> <td>convex hull</td> <td> Form the convex hull with the value. The convex hull is defined over ordered domains and is the smallest contiguous superset (interval) that of all the operand sets. <br/> </td> </tr> <tr> <td>1</td> <td>P <a name="P"> </a> </td> <td>periodic hull</td> <td> Form the periodic hull with the value. The periodic hull is defined over ordered domains and is the periodic set that contains all contiguous supersets of pairs of intervals generated by the operand periodic intervals. <br/> </td> </tr> </table> </div> </text> <identifier value="http://hl7.org/fhir/v3/vs/SetOperator"/> <name value="v3 Code System SetOperator"/> <publisher value="HL7, Inc"/> <telecom> <system value="url"/> <value value="http://hl7.org"/> </telecom> <description value="? not found"/> <status value="active"/> <date value="2014-08-07T00:00:00+10:00"/> <define> <system value="http://hl7.org/fhir/v3/SetOperator"/> <caseSensitive value="true"/> <concept> <code value="_ValueSetOperator"/> <abstract value="true"/> <display value="ValueSetOperator"/> <definition value="Operations that can be used to associate concepts in a terminology."/> <concept> <code value="E"/> <display value="exclude"/> <definition value="Form the set-difference with this value, i.e., exclude this element or set from the resulting set."/> </concept> <concept> <code value="I"/> <display value="include"/> <definition value="Form the union with this value, i.e., include this element or set in the resulting set."/> </concept> </concept> <concept> <code value="A"/> <display value="intersect"/> <definition value="Form the intersection with the value."/> </concept> <concept> <code value="H"/> <display value="convex hull"/> <definition value="Form the convex hull with the value. The convex hull is defined over ordered domains and is the smallest contiguous superset (interval) that of all the operand sets."/> </concept> <concept> <code value="P"/> <display value="periodic hull"/> <definition value="Form the periodic hull with the value. The periodic hull is defined over ordered domains and is the periodic set that contains all contiguous supersets of pairs of intervals generated by the operand periodic intervals."/> </concept> </define> </ValueSet>