The Division of Workers' Compensation (DWC) has posted an adjustment to the inpatient hospital section of the Official Medical Fee Schedule DWC Posts Adjustment of Official Medical Fee Schedule (OMFS) Inpatient Hospital Section to Conform to Medicare Changes The Division of Workers' Compensation (DWC) has posted an adjustment to the inpatient hospital section of the Official Medical Fee Schedule (OMFS) to conform to changes in the 2017 Medicare payment system as required by Labor Code section 5307.1. The effective date of the changes is January 1, 2017. Further information and adjustments to the inpatient hospital section of the Official Medical Fee Schedule can be found on the DWC website OMFS page.