Mycosis fungoides, intra-abdominal lymph nodes

This code signifies a diagnosis of mycosis fungoides, a type of cutaneous T-cell lymphoma, specifically when it has spread to involve the lymph nodes located within the abdominal cavity. This indicates a more advanced stage of the disease beyond the skin.

Use this code when documentation clearly states mycosis fungoides with confirmed involvement of intra-abdominal lymph nodes. This typically requires imaging studies (e.g., CT, MRI) or biopsy results confirming lymphadenopathy and the presence of mycosis fungoides cells in these nodes.

• Ensure documentation specifies "intra-abdominal" lymph nodes, not just general lymph node involvement.
• Distinguish from other types of cutaneous T-cell lymphomas or lymphomas affecting other lymph node regions.
• Sequence this code appropriately with other codes describing the primary cutaneous manifestations and any associated complications.