The link you followed will bring you to this page:

http://sistemats1.sanita.finanze.it/wps/wcm/connect/ea33a237-e840-4cdc-8a62-3a763831cf83/DM+31+luglio+2015.pdf?MOD=AJPERES&CACHEID=ea33a237-e840-4cdc-8a62-3a763831cf83