MS-DRGs replaced DRGs on October 1, 2007, which is why there is no data from 2008 forward
DRGs have a two-tiered structure: 1) With CC - Complication/Comorbidity; and 2) Without CC - No Complication/Comorbidity
and subdivides them (538) for the purpose of Medicare reimbursement.
The DRG classification system divides possible diagnoses into more than 20 major body systems
stay into groups for the purposes of payment.
DRG (Diagnostic Related Groups) Definition: a statistical system of classifying any inpatient
MedPar Data Dictionary https://www.resdac.org/cms-data/files/medpar-rif/data-documentation
throughout the stay.
depending on the length of a beneficiary's stay and the amount of services used
hospital or SNF. Each MedPAR record may represent one claim or multiple claims,
final action stay records. Each MedPAR record represents a stay in an inpatient
The MedPAR File contains inpatient hospital and skilled nursing facility (SNF)
by Jean Roth , jroth@nber.org , 24 Sep 2016
Source URL: http://www.dartmouthatlas.org/tools/downloads.aspx
Source Workbook: MedPar_DRGCodes_Age0to99_2004_2007.xlsx
Source Worksheet: Table