The type of additional information for the diagnosis. | Used for POA: Present On Admission (POA) indicator it refers to the associated diagnosis code and is defined as: Present at the time the order for inpatient admission occurs. Conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered as present on admission. The POA Indicator is applied to the principal diagnosis as well as all secondary diagnoses and the external cause of injury codes that are reported. If a condition would not be coded and reported based on UHDDS definitions and current official coding guidelines, then the POA indicator would not be reported.
restriction of string