We are a physician practice and have just started doing Peripheral Nerve Injections and have some questions as to how to file the claims correctly for the procedures being done.

If patient receives 4 injections in both legs we are billing 64450. What modifiers would you attach to indicate bilateral and repeat procedure? I'm thinking 51 and 76 with RT and LT and bill each injection separately. Meaning:
64450 RT
64450 76RT51
64450 76RT51
64450 76RT51
64450 50LT51
64450 76LT51
64450 76LT51
64450 76LT51

They are also doing unsupervised Electrical Stimulation 97014. But this code is not recoginized by Medicare so G0283. What modifier would be attached to this?