American Hospital Association (AHA) Hospital Identifier in the National (Nationwide) Inpatient Sample (NIS)

Maps generated on this page show which States in the 2001-2011 NIS allow the release of the AHA hospital identifier (data element AHAID) by year. Beginning with the 2012 NIS, the AHA hospital identifier is unavailable for all States.

Select the data year in the drop down menu, and then click the "Display Map" button.