Diffuse large B-cell lymphoma, intrathoracic lymph nodes

This code signifies a specific type of aggressive non-Hodgkin lymphoma originating from B-lymphocytes, primarily affecting the lymph nodes located within the chest cavity. This includes mediastinal, hilar, and other intrathoracic lymph node involvement.

Apply this code when documentation explicitly states a diagnosis of diffuse large B-cell lymphoma with confirmed involvement of intrathoracic lymph nodes. This diagnosis is typically established through biopsy and histopathological examination.

• Ensure the documentation specifies "diffuse large B-cell lymphoma" and not another subtype of non-Hodgkin lymphoma.
• Confirm that the anatomical site of involvement is clearly stated as "intrathoracic lymph nodes."
• Do not use this code if the primary site is extranodal, even if there is secondary intrathoracic involvement; use the appropriate extranodal site code first.