Non-follic (diffuse) lymphoma, unsp, lymph nodes mult site

This code signifies a malignant proliferation of lymphocytes that is not confined to a follicular pattern and affects multiple lymph node regions throughout the body. The specific subtype of non-follicular lymphoma is not identified in the pathology report.

Use this code when the pathology report confirms a diagnosis of lymphoma that is diffuse (non-follicular) and involves multiple, non-contiguous lymph node sites, but the specific type of diffuse lymphoma (e.g., DLBCL, mantle cell) is not yet determined or documented. This code is appropriate for initial diagnosis or when further subtyping is pending.

• Do not use this code if a more specific type of non-follicular lymphoma (e.g., diffuse large B-cell lymphoma) is documented.
• Ensure documentation clearly states involvement of "multiple sites" or "generalized" lymphadenopathy due to lymphoma.
• Consider sequencing this code as the primary diagnosis when the patient is being treated for this specific condition.