C83.14

HCC Category Mapping

What This Code Means

Mantle cell lymphoma is a type of cancer that starts in the lymph nodes located in the armpit and upper arm area. It is an aggressive form of non-Hodgkin lymphoma that affects B cells in the immune system.

Coding Tips

• •Verify the specific anatomical site (axilla and upper limb) is documented in the medical record before assigning this code, as mantle cell lymphoma can affect multiple lymph node regions
• •Ensure you have confirmed the histological diagnosis of mantle cell lymphoma and that it is not another type of lymphoma, as the fifth character (4) specifically indicates axillary and upper limb involvement

Clinical Significance

Mantle cell lymphoma of axillary and upper limb lymph nodes typically presents as painless lymphadenopathy discovered on physical examination. Axillary involvement may be isolated in early-stage disease or part of disseminated presentation. Physical exam findings should correlate with imaging for accurate staging.

Documentation Requirements

• ✓Pathology confirmation of mantle cell lymphoma (cyclin D1+, CD5+)
• ✓Documentation specifying axillary and/or upper limb lymph node involvement
• ✓Laterality (right, left, or bilateral)
• ✓Node size and characteristics on imaging
• ✓Assessment for concurrent involvement of other node groups

Commonly Confused Codes