Non-Hodgkin lymphoma, unsp, intra-abdominal lymph nodes

This code signifies a diagnosis of non-Hodgkin lymphoma that is not further specified as to type, and is specifically located within the intra-abdominal lymph nodes. It indicates a malignant proliferation of lymphocytes originating in the lymphatic system, with the primary site of involvement being the lymph nodes within the abdominal cavity.

This code is appropriate when documentation confirms non-Hodgkin lymphoma affecting intra-abdominal lymph nodes, but the specific histological subtype (e.g., diffuse large B-cell, follicular) is not yet determined or documented. It is used for initial diagnosis or when pathology results are pending or inconclusive regarding the specific type of non-Hodgkin lymphoma.

• Do not use this code if a more specific histological type of non-Hodgkin lymphoma is documented (e.g., diffuse large B-cell lymphoma).
• Ensure documentation clearly specifies "intra-abdominal lymph nodes" as the primary site of involvement.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter, unless another condition is clearly identified as the principal diagnosis.