```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>Admit Diagnosis@16:26:35</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>3</hlevel>
            <item_name>Asthma</item_name>
            <item_key>\\ICD10_ICD9\Diagnoses\(J00-J99) Dise~45pn\(J40-J47) Chro~fbox\(J45) Asthma\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Diagnoses \ Diseases of the respiratory system (j00-j99) \ Chronic lower respiratory diseases (j40-j47) \ Asthma</tooltip>
            <class>ENC</class>
            <constrain_by_modifier>
                <modifier_name>Admit Diagnosis</modifier_name>
                <modifier_key>\\ICD10_ICD9\Admit Diagnosis\</modifier_key>
                <applied_path>\Diagnoses\(J00-J99) Dise~45pn\%</applied_path>
            </constrain_by_modifier>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find all patients with a diagnosis of asthma (J45) in the chronic lower respiratory diseases category (J40-J47) within the diseases of the respiratory system (J00-J9) who have been admitted to the hospital. The specificity scale is set to 0, meaning the search is not restricted to a specific time period, and the panel timing is set to ANY, indicating that the search is not limited to a specific time frame. The panel accuracy scale is set to 100, meaning that all relevant records should be returned, and the invert parameter is set to 0, indicating that the search will return only positive results. This query is focused on a single item with an hlevel of 3, which is a specific condition within the broader category of respiratory diseases. The item icon is set to FA, and the tooltip provides additional information about the diagnosis category. The class is set to ENC, which stands for "encounter," and the constrain_by_modifier is set to "Admit Diagnosis," meaning that only patients with asthma as an ad