Subcision can be combined safely with any of the more superficial treatments, be it Co2 fractional laser, Intracel/microneedling rF and TCA Cross. However I would be concerned if you do too many treatments on the surface (TCA + Intracel) as healing may potentially be impaired.
Further more, TCA Cross downtime (socially) can be as long as 2 weeks or more.. you may find that unacceptable as well. So do take care to discuss with your doctor first
Winston