Creating service codes You define service codes to indicate the resource time to use for calculating absence plan records. Select Absence Management > Set Up > Codes and Classes > Service. On the Codes tab, click New. Specify this information: Service Code Specify a value for the service code. For example, LTD, PTO, STD. Description Specify a description for this service code. Event Select whether the service code represents an absence event. If you select Yes, then you must select a reason code. Reason Code If you selected Yes in the Event field, select a default reason code to associate with this service code. Active When you inactivate a service code, you can no longer use it. But if it is already used on service records, then the records are processed. Click Save.