Lymphoid neoplasm subtype recode 2020

Source of standard: NCI’s Surveillance, Epidemiology, and End Results (SEER) Programexternal icon

Source item name: Derived from NAACCR Primary site, Histologic code ICD-O-3, and Behavior code ICD-O-3

Source item numbers: NAACCR 400external icon (Primary site), 522external icon (Histologic code ICD-O-3), and 523external icon (Behavior code ICD-O-3)

This variable was based on ICD-O-3, updated for hematopoietic codes based on WHO Classification of Tumours of Haematopoietic and Lymphoid Tissues (2008). It was designed to facilitate epidemiologic studies of lymphoma subtypes.

Considerations for Use

This recode variable is defined by the SEER Program. It was adapted from a proposed nested classification of lymphoid neoplasms in Proposed classification of lymphoid neoplasms for epidemiologic research from the Pathology Working Group of the International Lymphoma Epidemiology Consortium (InterLymph)external icon (2007).