Code that best describes the source of industry information provided on this patient. This is a central cancer registry data item (i.e., codes should be applied by a central or regional registry rather than collected from reporting facilities).

Industry information may come from a variety of sources. The most valid and reliable source of industry information for patients has not yet been determined.

0	Unknown industry/no industry available
1	Reporting facility records
2	Death certificate
3	Interview
7	Other source
8	Not applicable, patient less than 14 years of age at diagnosis
9	Unknown source
Blank	Not collected