Here it is.
(10) "Life-prolonging procedure" means any medical procedure, treatment, or intervention, including artificially provided sustenance and hydration, which sustains, restores, or supplants a spontaneous vital function. The term does not include the administration of medication or performance of medical procedure, when such medication or procedure is deemed necessary to provide comfort care or to alleviate pain.
The 2004 Florida Statutes, Title XLIV, Civil Rights, Chapter 765, Health Care Advance Directives, 765.101 Definitions.
Confusing law - implies death by starvation is not painful. This is some kind of amoral futuristic brave new world.