MedPAR Hospital National LDS

The MedPAR File contains inpatient hospital final action stay records. Each MedPAR record represents a stay in an inpatient hospital. Each MedPAR record may represent one claim or multiple claims, depending on the length of a beneficiary's stay and the amount of services used throughout the stay.

This file includes:

  • diagnosis,
  • (ICD-9 diagnosis),
  • procedure (ICD-9 procedure code),
  • Diagnosis Related Group (DRG),
  • dates of service,
  • reimbursement amount,
  • hospital provider, and
  • beneficiary demographic information

Final Rule

Availability: 
FY 1999-2015

The Final Rule is published in the Federal Register usually by the first week of August. This file is derived from the MEDPAR file with a cutoff of six months after the end of the fiscal year (March file).

Proposed Rule

Availability: 
FY 2006-2015

The Notice of Proposed Rule Making (NPRM) is published in the "Federal Register", usually available in April. This file is derived from the MEDPAR file with a cutoff of three months after the end of the fiscal year (December file).

Data File Classification