Our Long-Term Care Minimum Data Set (MDS) files have long-term care beneficiaries' responses to health status screening and assessment questions. The files also have long-term care providers' evaluations of long-term care beneficiaries' health.
More specifically, the files have the following information:
There are two types of MDS data: nursing home and swing beds. Both types of data have two versions:
NOTE: We do not currently offer MDS swing-bed data; however, we do offer MDS nursing home data.
The table below lists variable categories for and some key variables in MDS data. For a comprehensive list of variables, review the MDS data dictionary.
Decision Making, Delirium Indicators, Dementia, Memory, Recall, Speech
Per Diem Payment Source (CHAMPUS, Medicaid, Medicare, Out of Pocket, VA)
Discharge Date, End Date, Entry Date, Re-entry Date, Record Date, Start Date
Age, Beneficiary Identification Number, Date of Birth, Education, Gender, Height, Language, Marital Status, Occupation, Race/Ethnicity, State Code, Weight
Claim Diagnosis Codes (International Classification of Diseases (ICD)-9 and ICD-10), including Cancer, Circulation/Heart, Gastrointestinal, Genitourinary, Infections, Metabolic, Muscoloskeletal, Neurological, Nutritional, Psychiatric/Mood Disorder, Pulmonary, Vision
Injections, Insulin, Medications Received (Antianxiety, Antibiotic, Anticoagulant, Antidepressant, Antipsychotic, Diuretic, Hypnotic)
Mood & Behavior
Activities of Daily Living (ADL) Patterns, Bladder and Bowel, Breathing, Communication (Hearing, Mode of Expression, Speech, Writing), Dental/Oral Status, Eating Patterns, Pain Assessment & Management (Effect on Functioning, Frequency, Intensity, Presence), Problem Conditions (Dehydrated, Fever, Internal Bleeding, Vomiting), Restraints, Skin Conditions, Swallowing/Nutritional Status, Vision
Procedures, Services & Treatments
Cancer Treatments, Dialysis, Hospice Care, Influenza Vaccine, IV Medications, Occupational Therapy, Physical Therapy, Pneumococcal Vaccine, Psychological Therapy, Recreational Therapy, Respiratory Therapy, Respiratory Treatments, Respite Care, Speech-Language Pathology and Audiology Services, Transfusions
Data Layout Version
Facility National Provider Identifier (NPI), Physician Visits, Provider Unique Identifiers, State Provider Number
1999 - 2021
File Update Frequency
Data Dictionary Link
NIA Data Partners Offering MDS
HRS, LLFS, NSHAP, PT, RADC, UFOVT, WLS
NIA Data Partners Not Offering MDS
BLSA, CE, HABC, NHAS, NHATS, NLTCS, PSAD, PSID, UAS