SEER is an authoritative source of information on cancer incidence and survival in the United States. SEER currently collects and publishes cancer incidence and survival data from population-based cancer registries covering approximately 28 percent of the U.S. population.
Lymph nodes (C770-C779) are the usual primary sites; however, involvement in other sites is possible. If you have confirmation that the only involved site is something other than the lymph nodes, then code to that primary site. See Module 7
Monoclonal B-cell neoplasm characterized by nodular or nodular and diffuse, polymorphous proliferation of scattered large neoplastic cells, "popcorn" or L&H (lymphocytic and/or histiocytic) cells. L&H cells reside in large spherical meshworks of follicular dendritic cell process filled with non-neoplastic lymphocytes and histiocytes.