Code, eighth digit, that is attached to the diagnostic code required for reporting Medicare inpatients’ claims for specific types of conditions. It is to be reported on the UB-04 claim form in diagnostic coding fields 67 and 67A-Q. For electronically transmitted claims, the POA is reported in loop 2300, data element H101, which should contain the letters “POA” followed by the assigned value for the code. Also see present on admission (POA).