C83.10

HCC Category Mapping

What This Code Means

Mantle cell lymphoma is a type of cancer that starts in the lymph nodes and can spread to other parts of the body. This code is used when the specific location of the cancer is not documented or specified.

Coding Tips

• •If the site of the mantle cell lymphoma is documented (such as lymph nodes of head, neck, chest, abdomen, etc.), use a more specific code from the C83.1- subcategory rather than the unspecified code
• •Mantle cell lymphoma is typically an aggressive form of non-Hodgkin lymphoma; ensure documentation supports the diagnosis and verify staging information is captured separately if available

Clinical Significance

Mantle cell lymphoma is an aggressive B-cell non-Hodgkin lymphoma arising from the mantle zone of lymph node germinal centers. It accounts for approximately 5-7% of all non-Hodgkin lymphomas and typically presents at advanced stages. The unspecified site code should be used only when documentation does not identify the specific lymph node region involved.

Documentation Requirements

• ✓Pathology confirmation with immunohistochemistry (cyclin D1 positive, CD5+, CD20+)
• ✓FISH or PCR for t(11;14) translocation confirmation
• ✓Ki-67 proliferation index (blastoid variant has worse prognosis)
• ✓Ann Arbor staging with bulk disease assessment
• ✓MIPI (Mantle Cell Lymphoma International Prognostic Index) score documentation

Commonly Confused Codes