Info and procedures you should review and know as you work with the workers' comp MCO so that you are prepared should you have an injured employee. For most of our clients, the MCO is CompManagement Health Systems, the sister company to CompManagement which cares for their group rating program. Please contact us if you questions on this.  Their web site can be linked here; please note the menu choice at the top of the page titled "Managed Care Services"  http://www.compmgt.com/index2.htm   Making MCO corrections or changing a MCO is only allowed by the BWC every two years. Click here for change info forms  http://www.phelpsfinancial.com/taxonomy/view/or/39