```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>Biopsy of exter@18:14:32</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>6</hlevel>
            <item_name>Biopsy of external ear</item_name>
            <item_key>\\i2b2_PROC\i2b2\Procedures\PRC\ICD9 (Inpatient)\(18-20) Operations on ear\(p18) Operations on external ear\(p18-1) Diagnostic procedures on ~\(p18-12) Biopsy of external ear\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Procedures \ ICD9 (Inpatient) \ Operations on ear \ Operations on external ear \ Diagnostic procedures on external ear \ Biopsy of external ear</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find all instances of "Biopsy of external ear" procedures performed on patients, regardless of when they occurred, with a specificity scale of 0 and a total item occurrence of 1, using the ICD9 (Inpatient) coding system under the "Operations on ear" category, specifically within the "Diagnostic procedures on external ear" subcategory, with a panel accuracy scale of 100 and no inversion applied.