Hi. Another question ... what is the LENGTH of CAU, 3 or 4? Since ICD10 cause of death codes have four characters, it is possible thaty CAU has a length of 4. Then Art's solution ... where cau in ('I00', 'I01', 'I02', 'I03', 'I04', 'I05', 'I06', 'I07', 'I08','I09') or cau=('I11') or cau=('I13') or('I20'<cau<'I51'); should be changed (I agree with "other Art" about the I20 to I59 range needing the =s) ... where cau in : ('I00', 'I01', 'I02', 'I03', 'I04', 'I05', 'I06', 'I07', 'I08','I09') or cau eq : 'I11' or cau eq : 'I13' or 'I20' <= cau <= : 'I51'); or the "other Art' ... where ('I00'<=cau<= : 'I09') or cau in : ('I11','I13') or ('I20'<=cau<= : 'I51');
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