Diffuse large B-cell lymphoma, intrapelvic lymph nodes

This code identifies a specific type of aggressive non-Hodgkin lymphoma, diffuse large B-cell lymphoma (DLBCL), when it is located within the lymph nodes of the pelvic region. DLBCL is characterized by rapidly growing B-lymphocytes and can originate in or spread to these intrapelvic lymph nodes.

Use this code for patients diagnosed with DLBCL where imaging (e.g., CT, MRI, PET scan) or biopsy confirms involvement of lymph nodes within the pelvis. Documentation should clearly state the histological type as diffuse large B-cell lymphoma and specify the intrapelvic location.

• Ensure the pathology report explicitly confirms "diffuse large B-cell lymphoma" and not another subtype of non-Hodgkin lymphoma.
• Verify the anatomical site is specifically "intrapelvic lymph nodes" to differentiate from other nodal or extranodal sites.
• This code is for the primary diagnosis of the lymphoma; additional codes may be needed for associated symptoms or complications.