W. Va. Code R. § 65-26-7
Outpatient services are not included in the benchmarking analysis because of the lack of data to measure the hospitals' relative performance in providing outpatient services. When this data becomes available, outpatient services may be included in the benchmarking analysis. However it is necessary to provide some automatic rate adjustment to the outpatient rates of hospitals which elect to participate in the benchmarking process. Therefore, hospitals are eligible for the same rate of increase for both the average nongovernmental inpatient charge per discharge and the nongovernmental outpatient charge per visit. This adjustment shall be calculated using the hospital's projected actual nongovernmental outpatient charge per visit.
W. Va. Code R. § 65-26-7