This file contains the Grade codes for the GRADE CLINICAL (#24.3), GRADE PATHOLOGICAL (#24.4) and GRADE POST THERAPY (#24.5) fields of the ONCOLOGY PRIMARY (#165.5) file.
DESCRIPTION: The SCHEMA is a 5 digit data item linking the Site Specific Data Items with the appropriate site/histology grouping and accounts for every combination of site and histology. The values are derived from the Primary Site,
Histology and Schema Discriminator (if applicable).