“…With this mission and values in mind, the AAN has taken numerous steps to address controversies related to BD/DNC (Figure 3) through the development of practice resources, solicitation of member feedback, conferences, education, and advocacy. 13,17,20,22,36,[42][43][44] Development of Practice Resources on BD/DNC Determination In 1995, the AAN noted (1) BD/DNC determination is not easy, (2) a perceived need for standardizing the evaluation, (3) variability in practice, (4) a controversy regarding the utilization of ancillary tests, and ( 5) government and third-party payers needed a well-defined practice parameter on determination of BD/DNC. 36 To address these issues, the AAN published practice parameters on BD/DNC determination in adults.…”