Patient started with Detox, step down to RES; we use TOB 112 for the first bill, than 113 on subsequent bills with a status code of 30 (on UB box# 17).

I have 3 questions:
1- can the interim TOB 113 be followed by TOB 133? when the patient is switched from RES to PHP, which is practically from I/P to O/P?
2- still using status code 30?

3- or must I discharge the patient for IP, using TOB 134 on the last I/P bill, with status code 01? before billing for the PHP with TOB 132.

Hope someone understand the questions and is able to help me with my confusion.

Thanks,