Hide Some Data

When I retrieve data from a field. it will fetch it properly, like this;

IncidentClassificationEnum.Hardware
IncidentClassificationEnum.Printing
IncidentClassificationEnum.Email

Can i hide some data (IncidentClassificationEnum) from it. Is this possible because i searched out all tables but cant find such table which have this only. On SCSM it can fetch only, Like this;

Hardware
Printing
Email

And, in my custom report i also want fetch category like as above.

If it is possible then kindly tell me soon.

Thanks in advance.