Diffus large B-cell lymph, nodes of ing rgn and lower limb

This code signifies a specific type of aggressive non-Hodgkin lymphoma, diffuse large B-cell lymphoma (DLBCL), affecting the lymph nodes located in the inguinal region and/or the lower limb. DLBCL is characterized by rapidly growing tumors composed of large B-lymphocytes.

Apply this code when documentation explicitly states a diagnosis of diffuse large B-cell lymphoma with primary or metastatic involvement of lymph nodes in the groin or leg. This diagnosis is typically confirmed by biopsy and immunohistochemistry. Use this code for initial diagnosis, active treatment, or follow-up care for this specific anatomical involvement.

• Ensure the documentation specifies "diffuse large B-cell lymphoma" and not another subtype of non-Hodgkin lymphoma.
• Verify that the affected lymph nodes are explicitly identified as inguinal region and/or lower limb; involvement of other sites would require a different code.
• Sequence this code as the primary diagnosis when it is the reason for the encounter, or as a secondary diagnosis when managing complications or related conditions.