```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-Acute-Secon@19:18:54</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>0</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>4</total_item_occurrences>
        <item>
            <hlevel>3</hlevel>
            <item_name>Acute appendicitis</item_name>
            <item_key>\\ICD10_ICD9\Diagnoses\(K00-K94) Dise~rl1r\(K35-K38) Dise~lkd6\(K35) Acute ap~joi0\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Diagnoses \ Diseases of the digestive system (k00-k94) \ Diseases of appendix (k35-k38) \ Acute appendicitis</tooltip>
            <class>ENC</class>
            <constrain_by_modifier>
                <modifier_name>Admit Diagnosis</modifier_name>
                <modifier_key>\\ICD10_ICD9\Admit Diagnosis\</modifier_key>
                <applied_path>\Diagnoses\(K00-K94) Dise~rl1r\%</applied_path>
            </constrain_by_modifier>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>Acute appendicitis with generalized peritonitis</item_name>
            <item_key>\\ICD10_ICD9\Diagnoses\(K00-K94) Dise~rl1r\(K35-K38) Dise~lkd6\(K35) Acute ap~joi0\(K35.2) Acute~lfm8\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Diagnoses \ Diseases of the digestive system (k00-k94) \ Diseases of appendix (k35-k38) \ Acute appendicitis \ Acute appendicitis with generalized peritonitis</tooltip>
            <class>ENC</class>
            <constrain_by_modifier>
                <modifier_name>Admit Diagnosis</modifier_name>
                <modifier_key>\\ICD10_ICD9\Admit Diagnosis\</modifier_key>
                <applied_path>\Diagnoses\(K00-K94) Dise~rl1r\%</applied_path>
            </constrain_by_modifier>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
    <panel>
        <panel_number>2</panel_number>
        <panel_timing>ANY</panel_timing>
        <panel_accuracy_scale>0</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>7</total_item_occurrences>
        <item>
            <hlevel>4</hlevel>
            <item_name>Acute appendicitis with generalized peritonitis</item_name>
            <item_key>\\ICD10_ICD9\Diagnoses\(K00-K94) Dise~rl1r\(K35-K38) Dise~lkd6\(K35) Acute ap~joi0\(K35.2) Acute~lfm8\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Diagnoses \ Diseases of the digestive system (k00-k94) \ Diseases of appendix (k35-k38) \ Acute appendicitis \ Acute appendicitis with generalized peritonitis</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
    <panel>
        <panel_number>3</panel_number>
        <panel_timing>ANY</panel_timing>
        <panel_accuracy_scale>0</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>10</total_item_occurrences>
        <item>
            <hlevel>3</hlevel>
            <item_name>Acute appendicitis</item_name>
            <item_key>\\ICD10_ICD9\Diagnoses\(K00-K94) Dise~rl1r\(K35-K38) Dise~lkd6\(K35) Acute ap~joi0\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Diagnoses \ Diseases of the digestive system (k00-k94) \ Diseases of appendix (k35-k38) \ Acute appendicitis</tooltip>
            <class>ENC</class>
            <constrain_by_modifier>
                <modifier_name>Secondary Diagnosis</modifier_name>
                <modifier_key>\\ICD10_ICD9\Secondary Diagnosis\</modifier_key>
                <applied_path>\Diagnoses\(K00-K94) Dise~rl1r\%</applied_path>
            </constrain_by_modifier>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find patients who have been admitted with a diagnosis of acute appendicitis or acute appendicitis with generalized peritonitis as their primary or secondary diagnosis.