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This release of the public, hospital discharge data sets consists of 11 files. All data files are self-extracting "zip" files and are in Microsoft Access (.mdb) format. The "look-up" tables are in Excel (.xls) format. The DIAGNOSIS_ID.xls file is also "zipped" for faster downloading.
|APRDRG 2011 2.0 mb||Discharge data summarized by Hospital, APR-DRG, Severity and Primary Payer**|
|MS-DRG 2011 1.5 mb||Discharge data summarized by Hospital, MS-DRG* and Primary Payer**|
|DIAGNOSIS 2011 3.0 mb||Discharge data summarized by Hospital, Principal Diagnosis and Primary Payer**|
|PROCEDURES 2011 1.2 mb||Discharge data summarized by Hospital, Principal Procedure and Primary Payer**|
|APRDRG ID 46 kb||Code number and description of the APR-DRGs|
|MS-DRG ID 131 kb||Code number and description of the new MS-DRGs|
|DIAGNOSIS ID 323 kb||Code number (ICD-9-CM) and description of the Principal Diagnoses|
|PROCEDURES ID 414 kb||Code number (ICD-9-CM) and description of the Principal Procedures|
|HOSPITAL ID 2011 48 kb||Code number, name, and county of the facilities|
|VARIABLES ID 2011 24 kb||Names (labels) and descriptions of the data set variables|
|PAYER1 ID 2011 20 kb||Code number and description of the Primary Payers**|
All negative numbers and those charges reported as "$0.00" have been changed to "missing."
*In October 2007, the DRG system was drastically changed by the federal government and is now known as the MS-DRG system. [MS-DRG = Medicare Severity Diagnosis Related Groups]. Assignment to one of the new MS-DRGs is intended to be more closely associated with the severity of the patient’s condition. There is no one-to-one crosswalk from the DRG system to the new MS-DRG system. Please see the MS-DRG_ID file for the new definitions.
**The groupings for payers have changed from those in prior years due to the adoption of the UB-04 billing form in place of the UB-92 in October 2007. Please see the PAYER1_ID_2011 file for the current year's codes.
Note: Beginning in 2011, there were 60 diagnosis codes, which included 1 principal diagnosis code and 59 secondary codes. Prior to 2011, there were only 18 diagnosis codes.