I cannot find anything in the code book that would answer the question if it is acceptable to put a GFIC receptical on an outer wall of a resident from a branch circuit within the house. The house is under construction. I guest in short, should this be on a circuit on it's own? It just seems wasteful when I have a circuit that isn't loaded that would support another receptical, that I would need to run another homerun for this.

I also heard the saying "whats in the bathroom, stay's in the bathroom". I take this as not being able to feed a GFIC receptical on an outer wall from this circuit.