Public Health - As enacted, prohibits a hospital from restricting a patient from having at least one patient representative as a visitor during a period when COVID-19 is a healthcare concern, if certain requirements met; specifies that the requirement that any disciplinary process, or action taken pursuant to such process, that is implemented by a health-related board regarding the dispensing or prescribing of medication for COVID-19 must be promulgated as an administrative rule does not apply to the dispensing or prescribing of controlled substances; revises other related provisions. - Amends TCA Title 14; Title 29; Title 49; Title 50; Title 63 and Title 68.