National Health Care Surveys (NHCS) Geocodes

The following table lists the geographic variables in the various National Health Care Surveys. When applying for access to this data through the RDC, please specify the variable description (or variable name listed in parentheses, where applicable) in your data dictionary.

Survey

Year

Public-Use Variable Descriptions

Restricted-Use Variable Descriptions

National Ambulatory Medical Care Survey (NAMCS)

1991-1994, 1997-1998

Geographic region of the visit
MSA or non-MSA location of the visit

National Ambulatory Medical Care Survey (NAMCS)

1989, 1990, 1995, 1996

Geographic region of the visit
MSA or non-MSA location of the visit

Patient Zip Code

National Ambulatory Medical Care Survey (NAMCS)

1999-2008

Geographic region of the visit
MSA or non-MSA location of the visit

Patient Zip Code
Facility Zip Code

National Hospital Ambulatory Medical Care Survey (NHAMCS)

1992-1994, 1997-1998

Geographic region of the visit
MSA or non-MSA location of the visit

National Hospital Ambulatory Medical Care Survey (NHAMCS)

1989, 1990, 1995, 1996

Geographic region of the visit
MSA or non-MSA location of the visit

Patient Zip Code

National Hospital Ambulatory Medical Care Survey (NHAMCS)

1999-2008

Geographic region of the visit
MSA or non-MSA location of the visit

Patient Zip Code
Facility Zip Code

National Survey of Ambulatory Surgery (NSAS)

1994-1996

Geographic Region

Patient Zip Code
Facility Zip Code
Urban-Rural Classification

National Hospital Discharge Survey (NHDS)

1996-1999

Geographic Region

Patient Zip Code

National Hospital Discharge Survey (NHDS)

2000-2007

Geographic Region

Patient Zip Code
Hospital Zip Code or County FIPS

National Nursing Home Survey (NNHS)

1995

Geographic Region

National Nursing Home Survey (NNHS)

1997, 1999

Geographic Region

County FIPS
State FIPS

National Nursing Home Survey (NNHS)

2004

Geographic Region

County FIPS
State FIPS
Nursing Home Zip

National Nursing Assistant Survey (NNAS)

1995

Geographic Region

National Nursing Assistant Survey (NNAS)

1997, 1999

Geographic Region

County FIPS
State FIPS

National Nursing Assistant Survey (NNAS)

2004

Geographic Region

County FIPS
State FIPS
Nursing Home Zip

National Home and Hospice Care Survey (NHHCS)

1996, 1998

Region (AQREGION)
MSA of non-MSA (AQSMSA)

County FIPS
State FIPS

National Home and Hospice Care Survey (NHHCS)

2000,2007

Region (REGION)
MSA or non-MSA

County FIPS
State FIPS

National Home Health Aide Survey (NHHAS)

1996, 1998

Region (AQREGION)
MSA of non-MSA (AQSMSA)

County FIPS
State FIPS

National Home Health Aide Survey (NHHAS)

2000,2007

Region (REGION)
MSA or non-MSA

County FIPS
State FIPS

National Employer Health Insurance Survey

1994

Region (GEOREG)
MSA or non-MSA

State Postal Code (SMPWT STATE)
FIPS State Code (FIPS_ST)
State Number (STATENUM)
Metropolitan Area Code (SMPWT MACODE)
Recode for Metropolitan Area (MACODERE)
Census Division (SENSUSRE)

National Health Provider Inventory (NHPI)

1991

State FIPS
County FIPS

Page last reviewed: November 3, 2009