C96.A

Applicable To

• Malignant histiocytosis

Approximate Synonyms

• Lymphoma malignant histiocytosis

• Lymphoma spleen, malignant histiocytosis

• Malignant histiocytosis

• Malignant histiocytosis clinical)

• Malignant histiocytosis of intra-abdominal lymph nodes

• Malignant histiocytosis of intrapelvic lymph nodes

• Malignant histiocytosis of intrathoracic lymph nodes

• Malignant histiocytosis of lymph nodes of axilla

• Malignant histiocytosis of lymph nodes of head

• Malignant histiocytosis of lymph nodes of inguinal region

• Malignant histiocytosis of lymph nodes of lower limb

• Malignant histiocytosis of lymph nodes of multiple sites

• Malignant histiocytosis of lymph nodes of neck

• Malignant histiocytosis of lymph nodes of upper limb

• Malignant histiocytosis of spleen

• Malignant histiocytosis, arm ln

• Malignant histiocytosis, axillary ln

• Malignant histiocytosis, head ln

• Malignant histiocytosis, inguinal ln

• Malignant histiocytosis, leg ln

• Malignant histiocytosis, neck ln

Clinical Information

• A malignant neoplasm composed of cells resembling histiocytes.

• A malignant neoplasm of large lymphocytes, which resemble histiocytes.

• A rare, usually progressive disorder comprising an invasive proliferation of neoplastic histiocytes. Many previous cases are now thought to represent anaplastic large-cell lymphoma.

• An aggressive malignant neoplasm with a poor response to therapy, usually presenting as stage iii/iv disease. It is characterized by the presence of neoplastic cells with morphologic and immunophenotypic characteristics similar to those seen in mature histiocytes.

• An antiquated term referring to cases of systemic non-hodgkin lymphomas which are composed of large, atypical neoplastic lymphoid cells and cases of hemophagocytic syndromes. In the past, cases of anaplastic large cells lymphoma were called malignant histiocytosis.

• An antiquated term referring to large cell lymphomas.

• An outdated term referring to non-hodgkin lymphomas made up of large abnormal lymphoid cells. Histiocytic lymphomas include mature b-cell and t-cell non-hodgkin lymphomas. Many tumors that were once called histiocytic lymphomas are now considered to be a type of large cell lymphoma.

• Malignant neoplasms composed of macrophages or dendritic cells. Most histiocytic sarcomas present as localized tumor masses without a leukemic phase. Though the biological behavior of these neoplasms resemble lymphomas, their cell lineage is histiocytic not lymphoid.

Details

• C96.A is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM C96.A became effective on October 1, 2022.

• This is the American ICD-10-CM version of C96.A – other international versions of ICD-10 C96.A may differ.