Pre-certification required / window

Definition: identifies whether pre-certification is required for particular patient types and the time window for obtaining the certification. Refer to user-defined table 0150 - pre-certification patient type for suggested values. Valid values for the pre-certification required component are found in table 0136 - Y/N indicator. The pre-certification window is the amount of time needed to be certified from arrival at the institution. Its format follows the time stamp (TS) data type rules.