Had a big argument about that on my CFI checkride: the DPE did not want to accept the CPL(H) that I held (!!!) because I my logbook entries for XC showed the same amount of time as PIC & Total. His reasoning was that you are not flying cross country for at least 6 minutes it takes you hover taxi out to the runway, prepare your takeoff, takeoff and leave the pattern - for good measure make it 12 minutes or 0.2hrs that hence cannot be logged as XC. Plus 0.1 for every pattern at every intermediate stop!
Took my CFI, the schools chief pilot, ops manager, and an FAA guy about an hour to convince the DPE to accept my CPL and proceed with my CFI oral.
Right now I'm flying in a place that defines helicopter flight time as "The time between the moment the rotor starts turning and the moment the rotor fully stops". Now that's convenient.