Ideally you shouldnt, as the 'code' already contains reference to a foreign key.
Any queries that look up '002' for example, will always still relate to '345'.The code would form the ID :
<option value="<%=rs("Code")%>"><%=rs("description")%></option>
An option would be to concatenate the code field and the ID field:
<%=rs("Code")& rs("CustId")%>
Thus giving 002345
But it would depend on the end use you require
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Spooky
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