Cutan folicl center lymphoma, nodes of head, face, and neck

This code signifies a specific type of non-Hodgkin lymphoma, cutaneous follicle center lymphoma, when it affects the lymph nodes located in the head, face, or neck regions. This is a low-grade B-cell lymphoma that primarily involves the skin but can present in or spread to regional lymph nodes.

Use this code when documentation confirms a diagnosis of cutaneous follicle center lymphoma with involvement of lymph nodes in the head, face, or neck. This typically follows a biopsy and pathological confirmation of the lymphoma type and location.

• Ensure the pathology report specifically identifies "cutaneous follicle center lymphoma" and involvement of head, face, or neck lymph nodes.
• Do not confuse this with primary cutaneous follicle center lymphoma (which typically does not involve lymph nodes initially) or other types of follicular lymphoma.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter, followed by any associated signs, symptoms, or complications.