Kaiser brief on state adoption of Medicaid options under the ACA: A primary goal of the Affordable Care Act (ACA) is to significantly reduce the number of uninsured Americans through an expansion of Medicaid and the creation of new health insurance exchanges. In addition, the law provides states a range of new opportunities and federal financing alternatives for their Medicaid programs. A new policy brief from the Kaiser Family Foundation's Commission on Medicaid and the Uninsured examines how states in every region have responded to five key opportunities available under the ACA to help them prepare for the significant expansion of Medicaid in 2014. Together these opportunities are leading to changes in the Medicaid program that lay groundwork for the ACA coverage expansions and develop new systems of care for high-cost beneficiaries. The options covered include incentives for states to get an early start on the Medicaid coverage expansion (adopted by eight states as of May 2012), increased federal funding to upgrade Medicaid eligibility systems (adopted by 29 states), special funding for chronic disease prevention (adopted by ten states), money to improve care for beneficiaries with chronic conditions by providing “health home” services (adopted by four states), and help in developing service delivery and payment models that integrate care for beneficiaries who are dually eligible for Medicare and Medicaid (26 states had submitted proposals to test models as of May 2012). Overall, 43 states and the District of Columbia have taken steps forward on at least one of the five options. The 11-page brief is available on the Kaiser Web site at www.kff.org/medicaid/upload/8312.pdf. To help stakeholders understand the terminology being developed to describe the multiplying care delivery and financing models in Medicaid, Kaiser has also released Decoding Medicaid Care Delivery and Financing Models: A Glossary of Widely Used Terms, which is available at www.kff.org/medicaid/upload/8313.pdf.