Non-follic (diffuse) lymphoma, unsp, intra-abd lymph nodes

This code signifies a diagnosis of diffuse lymphoma, a type of non-Hodgkin lymphoma, where the specific subtype is not documented. The disease primarily affects the lymph nodes located within the abdominal cavity. This indicates a systemic malignancy without further pathological or histological specification.

Use this code when documentation confirms a diagnosis of diffuse non-Hodgkin lymphoma affecting intra-abdominal lymph nodes, but the specific follicular versus non-follicular nature is not specified, and the exact histological subtype (e.g., large B-cell, T-cell) is unknown or unstated. This code is appropriate when the physician's diagnosis explicitly states "diffuse lymphoma, unspecified" or similar, with involvement of intra-abdominal lymph nodes.

• Always seek further specificity from the physician regarding the exact type of lymphoma (e.g., large B-cell, T-cell) and whether it is follicular or diffuse, if possible.
• Do not use this code if the documentation specifies a particular subtype of non-follicular lymphoma (e.g., diffuse large B-cell lymphoma), as more specific codes exist.
• Ensure documentation clearly indicates involvement of "intra-abdominal lymph nodes" to support the fifth character.