Primary Site – labeled

Source of standard: North American Association of Central Cancer Registriesexternal icon

Source item name: Derived from Primary Site

Source item number: 400external icon

This variable indicates the topography code from The International Classification of Diseases for Oncology, Third Edition (ICD-O-3) for the primary site of the tumor being reported.

Considerations for Use

Beginning in diagnosis year 2010, there were updates to some of the lymphoma and leukemia codes. To include these updates, the appropriate primary site variables to use are Site recode ICD-O-3/WHO 2008 for all ages, and ICCC site recode ICD-O-3/WHO 2008 for the childhood cancer recodes.