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.
In addition to what is listed below, there are geocoded data for NAMCS and NHAMCS 1999-2009. These data consist of distances between each patient’s ZIP Code of residence and the nearest hospital Cdc-pdfpdf icon[PDF – 156 KB] and Federally Qualified Health pdf icon
Center Cdc-pdfpdf icon[PDF – 136 KB].
National Health Care Survey’s public use and restricted geocodes table
|
Survey |
Year |
Public-Use Variable Descriptions |
Restricted-Use Variable Descriptions |
|---|---|---|---|
|
National Ambulatory Medical Care Survey (NAMCS) |
1973-2016 | Geographic region (of the physician’s interview location)
MSA or non-MSA location (of the physician’s interview location) (all years except 1989) State identifier (for location of physician’s office where most visits were sampled) for varying numbers of targeted states ranging from 34 in 2012 to 16 in 2015 (2012-2015) Census division (for location of physician’s office where most visits were sampled) (2012-2015) Urban-rural location of patient residence (5-category code based on NCHS Urban-Rural Classification) (2006-2011) |
Geographic region (of the physician’s interview location)
MSA or non-MSA location (of the physician’s interview location) (all years except 1989) State identifier (for location of physician’s office where most visits were sampled) for varying numbers of targeted states ranging from 34 in 2012 to 16 in 2015 (2012-2015) Census division (2012-2015) Urban-rural location of patient residence (6-category code based on NCHS Urban-Rural Classification) (2006-2011) Urban-rural location of physician (6-category code based on NCHS Urban-Rural Classification) (2006-current) FIPS state code for physician interview location (for 2012-2015, also include codes for office where most visits collected and the sampled visit) FIPS county code for physician interview location (for 2012-2015, also include codes for office where most visits collected and the sampled visit) Patient ZIP Code (except 1973-1985, 1991-1994, 1997-1998) Physician ZIP Code
Restricted files prior to 1993 may not be available for release.
|
|
National Ambulatory Medical Care Survey (NAMCS) |
1992-2011 Emergency Departments and Outpatient Departments | Geographic region of the hospital
MSA or non-MSA location of the hospital Urban-rural location of patient residence (5-category code based on NCHS Urban-Rural Classification) (2006-2010) |
Geographic region of hospital
MSA or non-MSA location of hospital Urban-rural location of patient residence (6-category code based on NCHS Urban-Rural Classification) (2006-2011) Urban-rural location of hospital (6-category code based on NCHS Urban-Rural Classification); (2006-current) FIPS state code for hospital location FIPS county code for hospital location Patient ZIP Code (except 1992-1994, 1997-1998) |
|
National Ambulatory Medical Care Survey (NAMCS) |
2012-2017 Emergency Departments | Geographic region of the hospital
MSA or non-MSA location of the hospital (except 2012) State identifier of hospital for 5 targeted states (2012) |
Hospital ZIP Code
All of the above |
|
National Survey of Ambulatory Surgery (NSAS)) |
1994-1996, 2006 | Geographic Region | Patient Zip Code Facility Zip Code Urban-Rural Classification |
|
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 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 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 |