SEER Terminology Rx Interactive Antineoplastic Drugs Database-Regimen Terminology Files

The SEER (Surveillance, Epidemiology, and End Results) program Rx Interactive Antineoplastic Drugs Database-Regimen terminology is a set of terms containing oncology drugs and regimens that are intended for coding oncology drug and regimen treatment categories in cancer registries. The SEER Rx regimen terminology was mapped to NCIt regimens and approximately 70% of the SEER Rx regimen terminology is linked to NCIt oncology regimens. The linked NCIt regimen concepts contain the SEER Rx regimen names and each of these concepts is linked to the component NCIt drug concepts.

For more information, visit Surveillance, Epidemiology, and End Results Program.

SEER Interactive Antineoplastic Drugs Database-Regimen Terminology files are available for download in two formats:
SEER_Rx_Antineoplastic_Drugs_Database.xls
SEER_Rx_Antineoplastic_Drugs_Database.txt
Each file has column headers on the first row:
Spreadsheet Column Content Description
NCIt Code of Subset The NCI Thesaurus (NCIt) concept code attached to the SEER concept. NCIt Codes are unique strings that begin with a C and are followed by a series of digits.
Subset Preferred Term The name of the terminology set.
NCIt Code The NCI Thesaurus (NCIt) concept code attached to the concept.
NCIt Preferred Term The preferred term chosen by NCI EVS that unambiguously describes the concept.
SEER Preferred Term The preferred term chosen by SEER for the concept.
NCIt Definition A text definition of the term created by subject matter experts at NCI EVS.

Also included on the NCI EVS ftp site are the following additional files:

About (This file.)
Changes (A text file of changes between the most recent and the current version of SEER Disease Terminology. For each change record, the Changes.txt contains a complete row of tab delimited data with the same data elements as described above. An "A" will precede any new concept additions, a "C" will precede any modification to existing concepts, and a "D" will precede any concepts that have been deleted.)
Version (A text file that contains the version of NCI Thesaurus that corresponds to the current spreadsheet data. The database is reconciled the last Monday of every month. The files will be posted during the following two weeks. The version appears as YR.MOweek. An example is 20.06d which corresponds to the year 2020, the month of June, and the "d" refers to the fourth Monday of the month.)
N.B.: If there are no changes to the data for a particular month, the files will not be reposted. Archived files are available at: • Archive Directory of dated release versions. Help requests on these files should go to NCIThesaurus@mail.nih.gov