Mixed cellular Hodgkin lymph, nodes of head, face, and neck

This code signifies a diagnosis of Hodgkin lymphoma of the mixed cellularity subtype, specifically affecting the lymph nodes located in the head, face, or neck regions. Mixed cellularity Hodgkin lymphoma is characterized by a heterogeneous cellular infiltrate, including Reed-Sternberg cells, lymphocytes, eosinophils, and plasma cells.

Apply this code when documentation confirms a pathological diagnosis of mixed cellularity Hodgkin lymphoma with primary involvement or metastasis to the lymph nodes of the head, face, or neck. This code is appropriate for initial diagnosis, active treatment, or follow-up care where the specific anatomical site and histological subtype are confirmed.

• Ensure the pathology report explicitly states "mixed cellularity" and confirms involvement of head, face, or neck lymph nodes.
• Do not confuse with other Hodgkin lymphoma subtypes (e.g., nodular sclerosis, lymphocyte-rich) or non-Hodgkin lymphomas.
• Sequence this code as the primary diagnosis when it is the reason for the encounter, followed by any associated signs, symptoms, or complications.