That way, clergy can review the admissions records and seek out their religious brethren. These records are to be confidential, but clergy are given special consideration.
That is illegal. You can report this to the Office of Civil Rights. It carries a $ penalty for the person committing the act and prison time.
All patients are entered into the hospital directory unless they specifically request to be removed (except if the patient is admitted for chemical addiction or mental illness, in some states they are automatically removed from the directory). Being in the directory means that any member of the general public, if they're clergy or not, can have basic information about you. It can include such things as your name, verifying you're in the hospital, etc.
The only way clergy should be treated differently is that they can go to the hospital info desk and ask, "Please give me a list of all Catholics admitted yesterday," whereas a non-clergy member wouldn't normally receive that info because they have no valid need for it. They can ask for you by name and get the directory info about you specifically though, if you're in the directory.
Other than that one small difference, clergy do not legally have any special privileges over the general public. I am not reiterating this to be nitpicky but to ensure ppl are aware of the legalities if info is illegally disclosed to the HLCs. IMO it's a matter of time until this situation arises because HLCs can be pushy (but unfortunately it would be only the hospital employee who would be prosecuted, not the HLC member).