Developing Medicare and Medicaid Substance Abuse Treatment Spending Estimates. Notes


  1. Available at Accessed July 26, 2012.

  2. Available at Accessed July 26, 2012.

  3. Note that we found some differences between the CMS-64 categories for 2008 and 2011. Some new categories were added to the CMS-64 in 2010 and 2011 that were not included in the CMS-64 in prior years. If the CMS categories change again in the future, it will be necessary to map the categories in the CMS-64 in the base and estimate year as closely as possible so that trends can be developed.

  4. Estimate the trend as Tt = (St/Sb)(1/(t-b)) . Where T is the trend, S is Medicaid spending per enrolled month from Step 4, t is current year, and b is base year.

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