C82.69

HCC Category Mapping

What This Code Means

This is a type of skin cancer (lymphoma) that starts in hair follicles and has spread to organs or tissues outside the lymph nodes. It is a slow-growing cancer that primarily affects the skin but may involve other body sites.

Coding Tips

• •Verify documentation specifies both the cutaneous (skin) location AND extranodal/solid organ involvement to justify this specific code rather than C82.60 (nodal sites only)
• •Identify and document which specific extranodal or solid organ sites are affected, as this information supports medical necessity and may be required for staging and treatment planning

Clinical Significance

Cutaneous follicle center lymphoma involving extranodal and solid organ sites represents the most advanced presentation of what is typically an indolent primary skin lymphoma. Involvement of solid organs (liver, bone marrow, lungs, GI tract) in the setting of a primary cutaneous lymphoma is extremely rare and should prompt thorough reassessment of the diagnosis. This may actually represent systemic follicular lymphoma with cutaneous involvement rather than the reverse.

Documentation Requirements

• ✓Original skin biopsy confirming cutaneous follicle center lymphoma diagnosis
• ✓Documentation of specific extranodal organs involved with biopsy confirmation
• ✓Multidisciplinary pathology review confirming the primary cutaneous designation
• ✓Complete staging evaluation with PET/CT and bone marrow biopsy
• ✓Clinical justification for maintaining cutaneous primary classification
• ✓Assessment of organ function at involved extranodal sites

Commonly Confused Codes