OrganizationField NameIDRequired
KCR SEER Patient Id (SEERPatId)10390No
NAACCR Patient System ID-Hosp21No

Field Length:  8

This is a unique number assigned to an individual patient by the central registry.  KCR will assign the same number to all the patient's subsequent tumor (records).  

The SEER Patient ID does not appear on the patient abstract and is not available for analysis.