State law mandates what? The law was misapplied by the hospital. It was hospital error. The hospital should eat the bills.
There is no language in the Texas law pertaining to brain death and insurance coverage. For instance NJ has the religious exclusion for brain death and in the law it is written that physicians and insurance cannot deny care or coverage, based on brain death criteria if there is a religious objection.
The entire case was about whether state law mandates it or not. The Court found that it didn't, but that doesn't make it a "hospital error." The statute didn't define patient and didn't refer to the UDDA. jmo