C83.3Non-Billable (Header)Diffuse large B-cell lymphomaExcludes 1 — Do NOT code togethermediastinal (thymic) large B-cell lymphoma (C85.2-)mature T/NK-cell lymphomas (C84.-)Code Hierarchy└C83Non-follicular lymphoma└C83.3Diffuse large B-cell lymphoma└C83.3Diffuse large B-cell lymphoma