Non-follicular (diffuse) lymphoma, unspecified, spleen

This code signifies a malignant proliferation of lymphocytes that is not confined to follicular structures, affecting the spleen. It represents a type of lymphoma where the specific histological subtype (e.g., diffuse large B-cell lymphoma, peripheral T-cell lymphoma) has not been determined or documented.

Use this code when documentation confirms a diagnosis of non-follicular lymphoma primarily involving the spleen, but the specific type of non-follicular lymphoma is not specified. This is appropriate when pathology reports indicate lymphoma in the spleen without further subtyping, or when the clinician has not yet received or documented definitive subtyping results.

• Do not use this code if a more specific histological type of non-follicular lymphoma (e.g., diffuse large B-cell lymphoma) is documented.
• Always sequence this code after any associated signs, symptoms, or complications if the lymphoma is not the primary reason for the encounter.
• Query the provider for a more specific lymphoma subtype if possible, as "unspecified" codes often indicate incomplete documentation.