Field Length: 5
This field represents the patient’s county of residence at the time of diagnosis. It is a five digit field where the first two digits represent the state of residence and the last three digits represent the county of residence in that state. The codes are taken from FIPS Publication Number 6-4, Counties and Equivalent Entities of the United States, its Possessions, and Associated Areas, as reissued July 7, 2001, and are made available electronically on the National Institute of Standards and Technology Web Site (http://www.itl.nist.gov/fipspubs/co-codes/states.htm). The state code for Kentucky is 21.
The county codes for Kentucky and its contiguous states are listed in Appendix D. CPDMS.net automatically calculates the correct county code from the address at diagnosis if the state is Kentucky and the ZIP code is within a single county. If a Kentucky ZIP code encompasses more than one county, the use must fill in this field. The U.S. Census Bureau web site has a helpful feature which displays the county (along with other information) of a particular address. The URL is http://factfinder.census.gov/servlet/AGSGeoAddressServlet?_lang=en&_programYear=50&_treeId=420.
Use Appendix D to code the state/county code for neighboring states.
Use code '00998' for any county outside Kentucky and its neighboring states.
Use code '00999' for unknown county of residence at diagnosis.
If the patient moves, do not change this code. It should remain the same as it was at the time this primary malignancy was diagnosed.
Note: This field is used to calculate the following geographic variables for Kentucky residents:
Area Development District
Appalachia (or non-Appalachia)
Beale Code (rural-urban continuum)
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