Consider extending the Cancer Staging Method Value Set to include the following:
International Germ Cell Consensus Classification (IGCCC), International Neuroblastoma Risk Group (INRG), Ann Arbor Lymphoma Staging System, Enneking Staging System, Children's Oncology Group Staging System, FIGO Staging of Gynecologic Tumors FIGO is adapted to TNM but not all staging factors are TNM - , International Staging System Stage, International Neuroblastoma Staging System, Masaoka Staging,