When the government decides to assume a major role in providing and paying for healthcare, the government also has to decide exactly what constitutes appropriate, reasonable, or essential healthcare under its program. Congress, of course, recognized this necessity when it passed the Patient Protection and Affordable Care Act (ACA), and the statute itself provides authority to the Secretary of Health and Human Services (HHS) to determine the “essential health benefits” that must be covered under the ACA beginning in 2014, both by insurers offering plans within governmentally sponsored exchanges and on the individual and smallemployer markets outside the exchanges. In a decision that was hailed as both “politically astute” and problematic for the goals that the ACA itself was supposed to accomplish, HHS shunted off the task of defining the term “essential health benefits” to the individual states.