You're not very clear what you mean?, if you mean the EEPROM data memory, the routines for reading it are listed in the datasheet.
However, if you mean the EEPROM program memory you can't read it from within the program, the Harvard architecture of the PIC means that program and data memory are totally seperate, and the program memory can't access itself.
All unprogrammed EEPROM are just like unprogrammed EPROM, all bits read '1', and programming consists of changing '1' to '0', you can't change them the other way.
So the EEPROM data memory is $FF when blank (as it's 8 bit), and the program memory is $3FFF (for a 14 bit PIC).