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Data Element Name:  Patient's Postal Service Zip Code and Extension Code File Location:  **Master, De-identified, De-Identified Abbreviated
SPARCS Data Element Number:  36 & 37
Record Positions:  205 - 213 Format-Length:  A/N - 5
A/N - 4
Effective Date:  1/1/1994 Revision Date:  January 1996
Deniable Data Element:  This field is composed of both non-deniable and deniable components. **The five-digit Zip Code is non-deniable and is present on all 3 files (Master, De-identified and De-identified Abbreviated). The Zip Code Extension is deniable and is present only on the Master File. See Appendix Z for release restrictions.


The Zip Code and Extension assigned by the Postal Service to the patient's principal residence at the time of admission.

Codes and Values:
  1. For United States residences, this Data Element is divided into a five-character Zip Code and a four-digit Extension Code. For Canadian residences, this Data Element is defined as a six character Zip Code and three character filler.

  2. Must have been left justified with no embedded blanks and space filled. In cases where only a five-digit code was entered, the remaining four positions must have been space filled.

  3. "XXXXX" = Unknown
    "YYYYY" = Foreign Country

  4. Must have been a valid code in accordance with the Zip/County Code Edit Validation Table in Appendix F.

Edit Applications:
  1. Must have been valid for the Patient's County Code (Data Element 34) assigned to the patient's principal residence.

  2. If Patient's Postal Service Zip Code was "10000"-"14999" or "06390", Patient's State (Data Element 35) must have equaled "NY", and Patient's County Code (Data Element 34) must have equaled "01"-"62" or "99".