In the 1st and 2nd excel worksheet tabs, sort the November and December discharge data pertaining to AMI, CHF, and pneumonia to determine any readmissions within 30 days for the hospital for December discharges for these specific diagnoses identified by ICD-9 coding: AMI 410.0-410.9, CHF 428, pneumonia 486 on primary diagnosis. Recommend copying the November and then the December discharge data side by side in a blank worksheet tab FOR EACH ICD-9 code. Sort both November and December by the column for the ICD code. Compare November against December to find the duplicate readmissions FOR EACH ICD-9 code