DDS WITH SELECT

In the following DDS I am trying to exclude records with certain 
transaction types.  To do this you'll see I put a select with a "COMP(NE 
'CU')".  When I look at the file or run the program that uses this DDS, I 
still get records with 'CU' and 'PH' transactions.  Am I forgetting 
something?
A          R IMHISTF                   PFILE(IMHIST)
 * 
A          K ITNBR 
A          K HOUSE 
A          K TRNDT                     DESCEND 
 * 
A          S TCODE                     COMP(NE 'CU')
A          S TCODE                     COMP(NE 'PH')