This variable is the total Medicare payments in the hospital outpatient (HOP) setting for a given year. The total Medicare payments for HOP are calculated as the sum of CLM_PMT_AMT for all HOP claims where the CLM_PMT_AMT >= 0.
Medicare payments are described in detail in a series of Medicare Payment Advisory Commission (MedPAC) documents called “Payment Basics” (see: http://www.medpac.gov/-documents-/payment-basics).
Also in the Medicare Learning Network (MLN) “Payment System Fact Sheet Series” (see the list of MLN publications at: http://www.cms.gov/Outreach-andEducation/Medicare-Learning-Network-MLN/MLNProducts/MLN- Publications.html)
Source: CCW (derived)