Non-Hodgkin lymphoma, unsp, nodes of axilla and upper limb

This code signifies a diagnosis of non-Hodgkin lymphoma where the specific type of lymphoma is not documented, and the disease is localized to the lymph nodes within the axilla (armpit) and/or upper limb. It indicates a primary or secondary involvement of these specific lymphatic regions by an unspecified non-Hodgkin lymphoma.

Use this code when the medical record clearly states a diagnosis of non-Hodgkin lymphoma affecting the axillary or upper limb lymph nodes, but the pathologist has not yet determined or documented the specific subtype (e.g., diffuse large B-cell, follicular). Documentation should specify the anatomical location of the involved lymph nodes.

• Do not use this code if a more specific subtype of non-Hodgkin lymphoma is documented; instead, code to the specific subtype.
• Ensure the documentation explicitly mentions involvement of axillary and/or upper limb lymph nodes.
• If the lymphoma involves other sites in addition to the axilla/upper limb, additional codes for those sites may be necessary, or a more generalized code might be appropriate depending on the primary site and extent of disease.