```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>Princ-Acute- Visi@22:09:15</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>Endocrine disorders</item_name>
            <item_key>\\i2b2_DIAG\i2b2\Diagnoses\Endocrine disorders (240-259)\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Diagnoses \ Endocrine disorders</tooltip>
            <class>ENC</class>
            <constrain_by_modifier>
                <modifier_name>Principal Diagnosis</modifier_name>
                <modifier_key>\\i2b2_DIAG\Principal Diagnosis\</modifier_key>
                <applied_path>\i2b2\Diagnoses\Endocrine disorders (240-259)\%</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>100</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>1</total_item_occurrences>
        <item>
            <hlevel>3</hlevel>
            <item_name>Acute pancreatitis</item_name>
            <item_key>\\ICD10_ICD9\Diagnoses\(K00-K94) Dise~rl1r\(K80-K87) Diso~5bj3\(K85) Acute pa~es5c\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Diagnoses \ Diseases of the digestive system (k00-k94) \ Disorders of gallbladder, biliary tract and pancreas (k80-k87) \ Acute pancreatitis</tooltip>
            <class>ENC</class>
            <item_is_synonym>true</item_is_synonym>
        </item>
        <item>
            <hlevel>3</hlevel>
            <item_name>acute (recurrent) pancreatitis</item_name>
            <item_key>\\ICD10_ICD9\Diagnoses\(K00-K94) Dise~rl1r\(K80-K87) Diso~5bj3\(K85) Acute pa~es5c\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Diagnoses \ Diseases of the digestive system (k00-k94) \ Disorders of gallbladder, biliary tract and pancreas (k80-k87) \ acute (recurrent) pancreatitis</tooltip>
            <class>ENC</class>
            <item_is_synonym>true</item_is_synonym>
        </item>
    </panel>
    <panel>
        <panel_number>3</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> Visit at ages 18-34 years old</item_name>
            <item_key>\\i2b2_VISIT\i2b2\Visit Details\Age at visit\18-34 years old\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Visit Details \ Age at visit \ 18-34 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>3</hlevel>
            <item_name> Visit at ages 35-44 years old</item_name>
            <item_key>\\i2b2_VISIT\i2b2\Visit Details\Age at visit\35-44 years old\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Visit Details \ Age at visit \ 35-44 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>3</hlevel>
            <item_name> Visit at ages 45-54 years old</item_name>
            <item_key>\\i2b2_VISIT\i2b2\Visit Details\Age at visit\45-54 years old\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Visit Details \ Age at visit \ 45-54 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>Visit at age 55 years old</item_name>
            <item_key>\\i2b2_VISIT\i2b2\Visit Details\Age at visit\55-64 years old\55 years old\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Visit Details \ Age at visit \ 55-64 years old \ 55 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>Visit at age 56 years old</item_name>
            <item_key>\\i2b2_VISIT\i2b2\Visit Details\Age at visit\55-64 years old\56 years old\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Visit Details \ Age at visit \ 55-64 years old \ 56 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>Visit at age 57 years old</item_name>
            <item_key>\\i2b2_VISIT\i2b2\Visit Details\Age at visit\55-64 years old\57 years old\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Visit Details \ Age at visit \ 55-64 years old \ 57 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>Visit at age 58 years old</item_name>
            <item_key>\\i2b2_VISIT\i2b2\Visit Details\Age at visit\55-64 years old\58 years old\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Visit Details \ Age at visit \ 55-64 years old \ 58 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>Visit at age 59 years old</item_name>
            <item_key>\\i2b2_VISIT\i2b2\Visit Details\Age at visit\55-64 years old\59 years old\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Visit Details \ Age at visit \ 55-64 years old \ 59 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>4</hlevel>
            <item_name>Visit at age 60 years old</item_name>
            <item_key>\\i2b2_VISIT\i2b2\Visit Details\Age at visit\55-64 years old\60 years old\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Visit Details \ Age at visit \ 55-64 years old \ 60 years old</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find patients who have been diagnosed with acute pancreatitis between the ages of 18 and 64, specifically looking at visits when they were 5, 56, 57, 58, 59, and 60 years old.