"This workbook includes wage index assignments that are to be applied in the ""Supplemental Wage index"" field of the OPSF. This field identifies the prior year wages for comparison purposes (what was previously included as a separate Pricer table), to apply the OPPS wage index hold harmless policy as described in the CY 2021 OPPS/ASC final rule. Note that where this ""Supplemental Wage Index"" is included, a ""1"" should also be included in the ""Supplemental Wage Index Flag"" field."
