For Objects of type P, RF, V, TR, FN, IF, TF, and R try this:

SELECT * FROM sys.sql_modules

Which gives you all you want to know. You will most likely want to examine the columns available in sql_modules and limit the amount of information returned.

And save the output to a file for later examination. I have found it useful to save it finally as a word doc and then I can use the search features of word to find in a table/column or whatever is returned in more than one SP ...

Good luck.