Cutaneous follicle center lymphoma, lymph nodes mult site

This diagnosis code identifies a specific type of non-Hodgkin lymphoma originating from the germinal centers of lymphoid follicles, presenting with involvement of lymph nodes in more than one anatomical region. It signifies a primary cutaneous follicle center lymphoma that has disseminated beyond a single site of lymph node involvement.

This code is appropriate for patients diagnosed with cutaneous follicle center lymphoma where imaging or biopsy confirms involvement of multiple lymph node regions (e.g., cervical and inguinal). Documentation should clearly state the diagnosis of cutaneous follicle center lymphoma and specify the presence of multifocal lymphadenopathy due to the lymphoma.

• Ensure the documentation explicitly states "cutaneous follicle center lymphoma" and "multiple sites" or "multifocal" lymph node involvement.
• Distinguish from primary nodal follicle center lymphoma, which would be coded differently.
• Do not use if the lymphoma is confined to a single lymph node region or is purely cutaneous without lymph node involvement.