Diffuse large B-cell lymphoma, intra-abdominal lymph nodes

This code signifies a specific type of aggressive non-Hodgkin lymphoma, diffuse large B-cell lymphoma (DLBCL), when it primarily affects lymph nodes located within the abdominal cavity. This malignancy originates from B-lymphocytes and is characterized by rapid growth and spread.

Use this code for patients diagnosed with DLBCL where imaging (e.g., CT, MRI) or biopsy confirms involvement of intra-abdominal lymph nodes. This code is appropriate when the primary site of involvement is identified as these abdominal lymph nodes, distinguishing it from systemic involvement or other primary sites.

• Ensure documentation clearly specifies "diffuse large B-cell lymphoma" and "intra-abdominal lymph nodes" to support this specific code.
• Distinguish from other subtypes of non-Hodgkin lymphoma or DLBCL affecting extra-nodal sites or other lymph node regions.
• Consider sequencing with codes for any associated symptoms or complications, such as abdominal pain or organ compression, if applicable.