This paper discusses the problematic and sometimes implicit nature of some central notions and criteria used in debates about inclusion (or exclusion) of health care services in the health care benefit package. An analysis of discussions about four health care services—lungtransplantation, statins, (sildenafil (viagra) and rivastigmine—illustrates a case-by-case approach and inconsistent use of criteria, which present a challenge to develop a decision-making procedure in which important criteria or central notions can be discussed explicitly.