Medicare provides the following guidelines for admission orders :
Specificity of the Order: The order must specify the admitting practitioner’s recommendation to admit ‘to inpatient,’ ‘as an inpatient,’ ‘for inpatient services,’ or similar language specifying his or her recommendation for inpatient care.
Timing: The order must be written on or before the time of the inpatient admission. Retroactive order is not acceptable. Order must be authenticated, dated and timed.