```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>Digesti-ALT (SG@16:21:43</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>2</hlevel>
            <item_name>Digestive system</item_name>
            <item_key>\\i2b2_DIAG\i2b2\Diagnoses\Digestive system (520-579)\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Diagnoses \ Digestive system</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
    <panel>
        <panel_number>2</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>ALT (SGPT) (LOINC:1742-6)</item_name>
            <item_key>\\i2b2_LABS\i2b2\Labtests\LAB\(LLB16) Chemistry\(LLB25) Liver Function Tests\SGPT\LOINC:1742-6\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Labtests \ Chemistry \ Liver Function Tests \ ALT (SGPT) (Group:SGPT) \ ALT (SGPT) (LOINC:1742-6)</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find all instances of diagnoses related to the digestive system (ICD codes 520-579) along with the corresponding ALT (SGPT) lab test results (LOINC:1742-6) within the i2b2 database, with no specific time constraint for when the diagnoses or tests were recorded. The query should have a specificity scale of 0 and an accuracy scale of 100, and the diagnoses and lab tests should not be inverted.