Follicular lymphoma, unsp, extranodal and solid organ sites

This code represents a diagnosis of follicular lymphoma that has originated or spread to sites outside of the lymph nodes, such as the bone marrow, spleen, or other solid organs. It specifies that the exact subtype of follicular lymphoma is not documented.

Use this code when documentation confirms a diagnosis of follicular lymphoma affecting extranodal or solid organ sites, and the specific grade or subtype of the follicular lymphoma is not specified by the clinician. This code is appropriate when the primary site of involvement is outside the lymphatic system or when there is documented involvement of both nodal and extranodal sites without further specificity.

• Ensure documentation clearly states "extranodal" or "solid organ involvement" and "follicular lymphoma."
• Do not use this code if the specific grade (e.g., grade I, II, III) of follicular lymphoma is documented; instead, select a more specific code.
• Sequence this code as the primary diagnosis when the extranodal follicular lymphoma is the reason for the encounter.