C91.40

Applicable To

• Hairy cell leukemia with failed remission

• Hairy cell leukemia NOS

Approximate Synonyms

• Hairy cell leukemia clinical)

• Hairy cell leukemia, arm ln

• Hairy cell leukemia, axillary ln

• Hairy cell leukemia, head ln

• Hairy cell leukemia, inguinal ln

• Hairy cell leukemia, leg ln

• Hairy cell leukemia, neck ln

• Leukemia, hairy cell

• Leukemic reticuloendotheliosis

• Leukemic reticuloendotheliosis extranod or solitar

• Leukemic reticuloendotheliosis intrapelvic lymph n

• Leukemic reticuloendotheliosis of extranodal and/or solid organ site

• Leukemic reticuloendotheliosis of intra-abdominal lymph nodes

• Leukemic reticuloendotheliosis of intrapelvic lymph nodes

• Leukemic reticuloendotheliosis of intrathoracic lymph nodes

• Leukemic reticuloendotheliosis of lymph nodes of axilla

• Leukemic reticuloendotheliosis of lymph nodes of head

• Leukemic reticuloendotheliosis of lymph nodes of inguinal region

• Leukemic reticuloendotheliosis of lymph nodes of lower limb

• Leukemic reticuloendotheliosis of lymph nodes of multiple sites

• Leukemic reticuloendotheliosis of lymph nodes of neck

• Leukemic reticuloendotheliosis of lymph nodes of upper limb

• Leukemic reticuloendotheliosis of spleen

• Leukemic reticuloendotheliosis spleen

Clinical Information

• A neoplastic disease of the lymphoreticular cells which is considered to be a rare type of chronic leukemia; it is characterized by an insidious onset, splenomegaly, anemia, granulocytopenia, thrombocytopenia, little or no lymphadenopathy, and the presence of “hairy” or “flagellated” cells in the blood and bone marrow.

• A rare neoplasm of small b-lymphocytes with “hairy” projections in bone marrow, spleen, and peripheral blood. Most patients are middle-aged to elderly adults and present with splenomegaly and pancytopenia. who, 2001)

• A rare type of leukemia in which abnormal b-lymphocytes a type of white blood cell) are present in the bone marrow, spleen, and peripheral blood. When viewed under a microscope, these cells appear to be covered with tiny hair-like projections.

• Neoplastic disease of the lymphoreticular cells which is considered to be a rare type of chronic leukemia; it is characterized by an insidious onset, splenomegaly, anemia, granulocytopenia, thrombocytopenia, little or no lymphadenopathy, and the presence of hairy or flagellated cells in the blood and bone marrow.

Details

• C91.40 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 C91.40 became effective on October 1, 2022.

• This is the American ICD-10-CM version of C91.40 – other international versions of ICD-10 C91.40 may differ.