How can i get the store value (not the display value) of a cck field,

What i mean is
In cck module, when you use a select list field (combobox) you can show a value and store another just with the | character, example:
c|Critical
n|Normal
m|Minor

The cck store de c;n and m values while show to the user Critical; Normal and Minor

Now, i need to get the store value to rewrite the output of a field, not the show value. Because the views module display the value to the right of the |
I wonder if there is a way to do that??
Excuse my English please