Among the non‐GCB‐type DLBCL NOS (n = 183), the frequency of SNV was PIM1 (n = 66, 36.1%), CD79B (n = 54, 29.5%), TP53 (n = 47, 25.7%), HIST1H1E (n = 45, 24.6%), and ETV6 (n = 45, 24.6%). Here, H1-4 is linked to diffuse large B-cell lymphoma.