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Central Distributor SID: Description of Data Elements
This section describes how HCUP data elements are coded, restrictions on their use, their uniform values, and State-specific coding practices.
 
PSTCO - Patient state/county FIPS code
 
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes
 

Patient State/county FIPS code (PSTCO) retains the county code provided by the HCUP Partner organization regardless of how the information is collected. For example, the information might be collected at the hospital with the patient self-reporting the information, assigned by the hospital or the HCUP Partner organization from the patient's ZIP Code, or derived from some source other than ZIP Code such as Census block. Nonnumeric values and invalid FIPS codes are set to invalid (.A). Valid FIPS codes include values for outlying areas of the United States and freely associated States (i.e., American Samoa, Federated States of Micronesia, Guam, Marshall Islands, Commonwealth of the Northern Mariana Islands, Palau, Puerto Rico, U.S. minor outlying islands, and the U.S. Virgin Islands).

 
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Uniform Values
 
VariableDescriptionValueValue Description
PSTCOPatient state/county FIPS codennnnnState/County FIPs Code
.Missing
.AInvalid
.CInconsistent
 
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State Specific Notes

Colorado

Colorado collects patient county code, but it is optional for hospitals to report this data to the hospital association.

Beginning in 2017, the HCUP Partner organization assigns patient county based on the patient's ZIP Code. Prior to 2017, patient county was assigned as reported by the patient. The patient county reported by the HCUP Partner organization is retained in the HCUP data element PSTCO. Patient county is reported for Colorado counties only.



District of Columbia

The HCUP Partner organization assigns patient county based on the patient's ZIP Code. This is retained in the HCUP data element PSTCO.



Florida

Florida collects county of residence for Florida patients only. Florida used Zip Code to calculate this field.

The HCUP Partner organization assigns patient county based on the patient's ZIP Code. This is retained in the HCUP data element PSTCO. Patient county is reported for Florida counties only.



Georgia

Beginning in 2007, FIPS state and county codes are available. A PSTCO value of 13999 indicates a Georgia resident of unknown county.

The HCUP Partner organization assigns patient county based on a specialized software that uses the patient's entire address, not just the ZIP Code. This is retained in the HCUP data element PSTCO.

From 2007 to 2010, PSTCO and PSTCO2 were incorrectly calculated for out-of-state patients. As a result, the state-specific portion of PSTCO and PSTCO2 (the first two characters) was set to "13" indicating Georgia instead of the correct state FIPS code. The county-specific portion of PSTCO and PSTCO2 (the last three characters) retained the out-of-state county code. In rare instances, PSTATE may also be affected and have the state identified as GA when the patient was out-of-state.



Iowa

Beginning in 2017, this information is no longer restricted to Iowa counties.

The HCUP Partner organization assigns patient county based on the patient's ZIP Code. This is retained in the HCUP data element PSTCO. Patient county is reported for Iowa counties only.



Kansas

The HCUP Partner organization assigns patient county based on the patient's ZIP Code. This is retained in the HCUP data element PSTCO.



Kentucky

The HCUP Partner organization assigns patient county based on the patient's ZIP Code. This is retained in the HCUP data element PSTCO.



Maine

The HCUP Partner organization assigns patient county based on the patient's ZIP Code. This is retained in the HCUP data element PSTCO.



Maryland

The HCUP Partner organization assigns patient county either based on the patient's ZIP Code or as reported by the patient. This is retained in the HCUP data element PSTCO. Patient county is reported for Maryland counties only.

PSTCO County/State
01 Allegany
02 Anne Arundel
03 Baltimore County
04 Calvert
05 Caroline
06 Carroll
07 Cecil
08 Charles
09 Dorchester
10 Frederick
11 Garrett
12 Harford
13 Howard
14 Kent
15 Montgomery
16 Prince George's
17 Queen Anne's
18 St. Mary's
19 Somerset
20 Talbot
21 Washington
22 Wicomico
23 Worcester
29 Unidentified Maryland
30 Baltimore City (independent city)
39 Delaware
49 Pennsylvania
59 West Virginia
69 Virginia
79 District of Columbia
89 Foreign
90 Other US Territories (Guam, Puerto Rico, U.S. VI, American Samoa, N. Mariana Islands)
98 Other states
99 Unidentified

Residents of other states were classified by state, but not county. During HCUP processing, a missing county code of 000 was assigned for out-of-state (non-Maryland) patients:

PSTCO State
(Valid prior to 2017 SID, SASD, SEDD)
10000 Delaware
11000 Washington, D.C.
24000 Maryland (county not specified)
42000 Pennsylvania
51000 Virginia
54000 West Virginia


Mississippi

It is unknown whether PSTCO is assigned from the patient's ZIP code or as reported by the patient. The value provided by the HCUP Partner organization is retained in the HCUP data element PSTCO.



Nevada

The HCUP Partner organization assigns patient county based on the patient's ZIP Code. This is retained in the HCUP data element PSTCO.



New Jersey

Beginning in 2008, New Jersey provides municipality codes and discontinued county codes.

During the HCUP processing, municipality codes are mapped to state/FIPS codes and stored in PSTCO.

New Jersey classifies patient state and county codes for residents of New Jersey. The patient state and county codes are available for residents of New York and Pennsylvania in some years. For patients from states other than New Jersey, New York and Pennsylvania, PSTCO contains a valid FIPS state code (first two digits) and "000" for the county code (last three digits).

PSTCO
Value Description Value Description
101-123 Municipalities in Atlantic County 34001 Atlantic County
201-270 Municipalities in Bergen County 34003 Bergen County
301-340 Municipalities in Burlington County 34005 Burlington County
401-437 Municipalities in Camden County 34007 Camden County
501-516 Municipalities in Cape May County 34009 Cape May County
601-614 Municipalities in Cumberland County 34011 Cumberland County
701-722 Municipalities in Essex County 34013 Essex County
801-824 Municipalities in Gloucester County 34015 Gloucester County
901-912 Municipalities in Hudson County 34017 Hudson County
1001-1026 Municipalities in Hunterdon County 34019 Hunterdon County
1101-1113 Municipalities in Mercer County 34021 Mercer County
1201-1225 Municipalities in Middlesex County 34023 Middlesex County
1301-1353 Municipalities in Monmouth County 34025 Monmouth County
1401-1439 Municipalities in Morris County 34027 Morris County
1501-1533 Municipalities in Ocean County 34029 Ocean County
1601-1616 Municipalities in Passaic County 34031 Passaic County
1701-1715 Municipalities in Salem County 34033 Salem County
1801-1821 Municipalities in Somerset County 34035 Somerset County
1901-1924 Municipalities in Sussex County 34037 Sussex County
2001-2021 Municipalities in Union County 34039 Union County
2101-2123 Municipalities in Warren County 34041 Warren County
blank   . Missing
other   .A Invalid


New Mexico

The HCUP Partner organization assigns patient county as reported by the patient. This is retained in the HCUP data element PSTCO.



New York

The HCUP Partner organization assigns patient county based on the patient's ZIP Code. This is retained in the HCUP data element PSTCO.



North Carolina

The HCUP Partner organization assigns patient county based on the patient's ZIP Code. This is retained in the HCUP data element PSTCO.

The 2013 inpatient and outpatient source data provided by the HCUP Partner in North Carolina had erroneous data reported in the patient's ZIP Code field for one hospital. The HCUP data elements ZIP and PSTCO (patient's county code) were set to invalid for these records in the HCUP State databases. Any other HCUP data elements derived from the patient's ZIP Code or county (e.g., patient location, income quartile) were also set to invalid or missing.

From 2007 to 2009, PSTCO and PSTCO2 were incorrectly calculated for out-of-state patients. As a result, the state-specific portion of PSTCO and PSTCO2 (the first two characters) was set to "37" indicating North Carolina instead of the correct state FIPS code. The county-specific portion of PSTCO and PSTCO2 (the last three characters) retained the out-of-state county code. In rare instances, PSTATE may also be affected and have the state identified as NC when the patient was out-of-state.



Oregon

The HCUP Partner organization assigns patient county based on the patient's ZIP Code. This is retained in the HCUP data element PSTCO.



Rhode Island

The HCUP Partner organization assigns patient county based on the patient's reported city or town. This is retained in the HCUP data element PSTCO.



South Carolina

The HCUP Partner organization assigns patient county as reported by the patient. This is retained in the HCUP data element PSTCO.

South Carolina separately classifies patient state and county codes for residents of South Carolina, North Carolina, and Georgia. Residents of Georgia and North Carolina may have a specific county code or the county code may be missing (000).

For patients classified by the data source as residents of states other than South Carolina, North Carolina, or Georgia, and patients whose state and county codes are missing:

  • PSTCO is assigned to invalid (.A) in the 1993 data, and
  • PSTCO is assigned to missing (.) beginning in the 1994 data.


South Dakota

The HCUP Partner organization assigns patient county based on the patient's ZIP Code. This is retained in the HCUP data element PSTCO.



Utah

Utah reported patient county codes for Utah residents only. All others (including those categorized as homeless) are classified, but not by county. During HCUP processing, residents classified as "Homeless" or "Unknown Utah" are recoded to 000. Patients classified as "Outside Utah", "Unknown", and "Outside USA" are set to missing.



Vermont

Beginning in 2017, the VT Partner provides a three digit FIPS county code. HCUP assigns the two digit state code with the three digit FIPS county code if the state is Vermont, otherwise PSTCO is set to invalid (or remains missing).

Prior to 2017, town was used to assign PSTCO.

Prior to 2005 data, an error during HCUP processing mistakenly recoded the township value (TOWN = "2400" which is Massachusetts all counties) to a New Hampshire county (value 33007) for patient's county (PSTCO). For these records with TOWN = "2400", PSTCO should have been set to missing.



West Virginia

The HCUP Partner organization assigns patient county based on the patient's ZIP Code. This is retained in the HCUP data element PSTCO.


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Internet Citation: HCUP Central Distributor SID Description of Data Elements - All States. Healthcare Cost and Utilization Project (HCUP). August 2008. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/vars/siddistnote.jsp?var=pstco.
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Last modified 8/12/08