PUBLIC INPATIENT DATA SETS
The public inpatient data sets include hospital discharges in which a patient was admitted to the hospital. Discharges are classified as inpatient by the reporting hospitals, and admission criteria distinguishing inpatient from outpatient discharges may vary across hospitals.
This release of the public, hospital discharge data sets consists of 11 files. All data files are in Microsoft Access (.mdb) format. All lookup tables are in Excel (.xls or .xlsx) format.
| File Name | Description |
| APR-DRG 2015 8.5 mb | Discharge data summarized by Hospital, APR-DRG, Severity and Primary Payer |
| MS-DRG 2015 6.4 mb | Discharge data summarized by Hospital, MS-DRG and Primary Payer |
| DIAGNOSIS 2015 16.6 mb | Discharge data summarized by Hospital, Principal Diagnosis* and Primary Payer |
| PROCEDURES 2015 7.5 mb | Discharge data summarized by Hospital, Principal Procedure* and Primary Payer |
| Lookup Table Name | Description |
| APR-DRG ID 57.5 kb | Code number and description of the APR-DRGs |
| MS-DRG ID 139 kb | Code number and description of the MS-DRGs |
| DIAGNOSIS ID 2015 2.2 mb | Code number (ICD-9-CM/ICD-10-CM) and description of the Principal Diagnoses |
| PROCEDURES ID 2015 1.8 mb | Code number (ICD-9-PCS/ICD-10-PCS) and description of the Principal Procedures |
| HOSPITAL ID 2015 44.5 kb | Code number, name, and city of the facilities |
| VARIABLES ID 2015 36 kb | Names (labels) and descriptions of the data set variables |
| PAYER ID 2015 31.5 kb | Code number and description of the Primary Payers |
All negative numbers and those charges reported as "$0.00" have been changed to "missing."
* Diagnosis and procedure coding transitioned from ICD-9 to ICD-10 on October 1, 2015. Both ICD-9 and ICD-10 codes should be utilized in the analysis of 2015 data. The diagnosis and procedure lookup tables for the 2015 public inpatient data sets include both code sets. The lookup tables also include a “Code_Timeframe” column to indicate whether the codes are ICD-9 (1/1/2015-9/30/2015) or ICD-10 (10/1/2015-12/31/2015).
Discharges by APR-DRG and Severity are produced using proprietary computer software created, owned, and licensed by the 3M Company. All copyrights in and to the 3MTM software (including the selection, coordination, and arrangement of all codes) are owned by 3M. All rights reserved.