Hodgkin lymphoma, unspecified, intra-abdominal lymph nodes

This code signifies a diagnosis of Hodgkin lymphoma where the specific subtype is not documented, and the disease is located within the lymph nodes of the abdominal cavity. It indicates a primary malignant neoplasm of lymphoid tissue affecting the intra-abdominal lymphatic system.

Use this code when the physician's documentation confirms Hodgkin lymphoma affecting intra-abdominal lymph nodes, but the specific histological subtype (e.g., nodular sclerosis, mixed cellularity) is not specified. This code is appropriate when pathology reports confirm Hodgkin lymphoma in abdominal lymph nodes without further subtyping.

• Do not use this code if a specific subtype of Hodgkin lymphoma is documented; instead, use the more precise C81.0-C81.7 series.
• Ensure documentation clearly specifies "intra-abdominal lymph nodes" as the primary site of involvement.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter, unless another condition is the primary reason for admission/visit.