```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>Pneumonia due t@16:53:16</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>5</hlevel>
            <item_name>Pneumonia due to sars-associated coronavirus</item_name>
            <item_key>\\ICD10_ICD9\Diagnoses\(J00-J99) Dise~45pn\(J09-J18) Infl~7z2l\(J12) Viral pn~6io0\(J12.8) Other~euj2\(J12.81) Pneum~f4r6\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Diagnoses \ Diseases of the respiratory system (j00-j99) \ Influenza and pneumonia (j09-j18) \ Viral pneumonia, not elsewhere classified
 \ Other viral pneumonia \ Pneumonia due to sars-associated coronavirus</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find all cases of Pneumonia due to SARS-associated coronavirus, regardless of when the diagnosis was made, with a high level of specificity (100) and no inversion, within a single panel. The query should be focused on diagnoses of diseases related to the respiratory system, specifically influenza and pneumonia, and should include other viral pneumonia cases that are not otherwise classified. The query will utilize the ICD-10 and ICD-9 coding systems, specifically the code range J00-J9 for diseases of the respiratory system, J09-J18 for influenza and pneumonia, and J12.81 for other viral pneumonia.