Possible error codes for monitor

On Midrange-L (oops!), I wrote:
>> I'm looking at the V5R4 reference for %dec(), but I don't see any
>> mention of what happens if the first parameter is a character
>> variable (or literal) containing non-numeric data.
>>
>> Is there somewhere to find this sort of thing, or do you just look at
>> the list of all the error codes and hope you can figure out which
>> ones are possible from a given opcode/BIF?


Rob Berendt responded:
> I think if you peruse the ILE RPG Reference (not the program guide)
> and look at
> Chapter 5 "File and program exception/errors"
> Program Exceptions/Errors
> Program Status Data Structure
> Program Status Codes


Thanks Rob, I can never remember the proper name of that section. That's the list of error codes to which I was referring. I'm looking at HTML version of the RPG Reference so I search more easily, but I don't see references in that document to which operations can cause a given code.

I'm probably overthinking it, but I'm nervous that I'll miss something important by just reading the list and guessing which operations can cause which codes.