Diffuse large B-cell lymph, nodes of axilla and upper limb

This code signifies a diagnosis of diffuse large B-cell lymphoma (DLBCL) specifically affecting the lymph nodes located in the axilla (armpit) and/or the upper limb. DLBCL is an aggressive, fast-growing type of non-Hodgkin lymphoma that originates from B-lymphocytes. This particular code specifies the anatomical site of involvement.

Use this code when documentation clearly indicates a confirmed diagnosis of diffuse large B-cell lymphoma with primary or metastatic involvement of the axillary or upper limb lymph nodes. This is typically supported by pathology reports confirming DLBCL and imaging or physical exam findings localizing the disease to these specific lymph node regions.

• Ensure the pathology report explicitly states "diffuse large B-cell lymphoma" and not another subtype of non-Hodgkin lymphoma.
• Verify that the documentation specifies involvement of axillary and/or upper limb lymph nodes; do not assume based on general lymphoma diagnosis.
• Code additional sites of involvement with appropriate secondary codes if the lymphoma is disseminated beyond the axilla and upper limb.