Mixed cellular Hodgkin lymph, nodes of axilla and upper limb

This diagnosis code identifies a specific subtype of Hodgkin lymphoma, characterized by a mixed cellular composition, that is located within the lymph nodes of the axilla (armpit) and/or the upper limb (arm). It indicates a primary malignant neoplasm of the lymphatic system with a distinct histological pattern.

Apply this code when documentation explicitly states a diagnosis of mixed cellularity Hodgkin lymphoma affecting the lymph nodes of the axillary region or any part of the upper arm. Pathological confirmation of the mixed cellularity subtype and anatomical site specificity are crucial for accurate coding.

• Ensure the pathology report confirms "mixed cellularity" as the specific subtype of Hodgkin lymphoma.
• Verify that the documented anatomical site is limited to the axilla or upper limb lymph nodes.
• Do not use this code if the lymphoma is described as affecting other lymph node regions or is of a different histological subtype.