Medicare Data Documentation

(Data Documentation is sometimes referred to as data dictionaries, record layouts, and data layouts)

ResDAC Disclosure Statement:
This resource is for reference purposes only. Record layouts may vary, users should not use these layouts to develop programming language for specific data files. Please contact ResDAC with questions about the data files.

Research Identifiable Files (RIF)

(To browse data variable descriptions, download data dictionaries, or download SAS input statements, click on the links below)

Enrollment/Summary Files

Master Beneficiary Summary File (See "Medicare Enrollment" section)

Medicare Enrollment (A/B/C/D)

Chronic conditions

Cost & Utilization

National Death Index

Medicare Denominator File

Beneficiary Summary File

Beneficiary Annual Summary File (for years 1997-2006)

Beneficiary Annual Summary File (for years 2007 and forward)

Vital Status File

Vital Status File with Name and/or Addresses

Utilization files

Medicare Institutional Files

Institutional files include: Inpatient, Skilled Nursing Facility, Outpatient, Home Health Agency, and Hospice

As of 1/1/2009, CCW will output files in the format found on the CCW website.

Medicare Non-Institutional Files

Non-Institutional files include: Carrier [Old name: Physician/Supplier Part B] and Durable Medical Equipment

As of 1/1/2009, CCW will output files in the format found on the CCW website.

Part D Event Data

CCW Part D User Manual

Medicare MedPAR File

Assessments

Medicare Assessment data

Assessments include Minimum Data Set (MDS) assessments, OASIS assessments, IRF-PAI assessments, and Swing-Bed Assessments

Part D Characteristics Files

Part D Drug Characteristics File

Part D Pharmacy Characteristics File

Part D Plan Characteristics File

Part D Prescriber Characteristics File

Historial Record Layouts

Historical Record Layouts

SAS Input Statements

SAS Input Statements (for the research identifiable files only)

Limited Data Set (LDS) Files

Last Modified April 11, 2012