```xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns4:query_definition xmlns:ns2="http://www.i2b2.org/xsd/cell/crc/psm/1.1/" xmlns:ns4="http://www.i2b2.org/xsd/cell/crc/psm/querydefinition/1.1/" xmlns:ns3="http://www.i2b2.org/xsd/cell/crc/psm/analysisdefinition/1.1/">
    <query_name>Diabetes mellit@22:00:43</query_name>
    <query_timing>ANY</query_timing>
    <specificity_scale>0</specificity_scale>
    <panel>
        <panel_number>1</panel_number>
        <panel_timing>ANY</panel_timing>
        <panel_accuracy_scale>100</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>1</total_item_occurrences>
        <item>
            <hlevel>4</hlevel>
            <item_name>Diabetes mellitus complicating pregnancy, childbirth, or the puerperium</item_name>
            <item_key>\\i2b2_DIAG\i2b2\Diagnoses\Events of pregnancy (630-677)\(648) Other current conditions in~\(648-0) Diabetes mellitus complic~\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Diagnoses \ ... \ Other current conditions in the mother classifiable elsewhere, but complicating pregnancy, childbirth, or the puerperium \ Diabetes mellitus complicating pregnancy, childbirth, or the puerperium</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find patients with a diagnosis of Diabetes mellitus complicating pregnancy, childbirth, or the puerperium, with any timing and specificity scale set to 0, and panel accuracy scale set to 100, without inverting the search and looking for a total of 1 occurrence of the diagnosis, using the specified item key and hierarchy level.