Mixed cellularity Hodgkin lymphoma, intra-abd lymph nodes

This code signifies a diagnosis of Hodgkin lymphoma, specifically the mixed cellularity subtype, affecting lymph nodes located within the abdominal cavity. 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 or metastatic involvement of intra-abdominal lymph nodes. This code is appropriate for initial diagnosis, staging, or follow-up of this specific lymphoma type and location.

• Ensure the pathology report explicitly states "mixed cellularity" and confirms intra-abdominal lymph node involvement.
• Do not confuse with other Hodgkin lymphoma subtypes (e.g., nodular sclerosis, lymphocyte-rich) or non-Hodgkin lymphomas.
• Code any associated symptoms or complications separately, following sequencing guidelines.