Suggest you move this to general in terms of how funding for Residential Treatment Center (RTC) works in CA. Bunch of people here from there who will know.
My recollection is that Medicaid will cover it via a Katie beckett Waiver. That is, difficult child will be treated as a family of one for income and assets Medicaid tests. Assuming difficult child has no income or assets he qualifies for medicaid as a back up insur to Kaiser. So if kaiser won't pay for it then medicaid takes over and pays for it. But I don't know who you apply to.
