C93.1

Applicable To

• Chronic monocytic leukemia

• CMML-1

• CMML-2

• CMML with eosinophilia

Clinical Information

• A chronic myelomonocytic leukemia characterized by a peripheral blood eosinophil count of equal or greater than 1.5x10e9/l, and absence of pdgfra or pdgfrb gene abnormalities.

• A chronic myelomonocytic leukemia characterized by the presence of 10-19 percent blasts in the bone marrow and 5-19 percent blasts in the peripheral blood or by the presence of auer rods regardless of the blasts count.

• A chronic myelomonocytic leukemia characterized by the presence of less than 10 percent blasts in the bone marrow and less than 5 percent blasts in the peripheral blood.

• A myelodysplastic/myeloproliferative neoplasm which is characterized by persistent monocytosis, absence of a philadelphia chromosome and bcr/abl fusion gene, fewer than 20 percent blasts in the bone marrow and blood, myelodysplasia, and absence of pdgfra or pdgfrb rearrangement.

• A myelodysplastic-myeloproliferative disease characterized by monocytosis, increased monocytes in the bone marrow, variable degrees of dysplasia, but an absence of immature granulocytes in the blood.

• A slowly progressing type of myelodysplastic/myeloproliferative disease in which too many myelomonocytes a type of white blood cell) are in the bone marrow, crowding out other normal blood cells, such as other white blood cells, red blood cells, and platelets.

Details

• C93.1 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.

• The 2023 edition of ICD-10-CM C93.1 became effective on October 1, 2022.

• This is the American ICD-10-CM version of C93.1 – other international versions of ICD-10 C93.1 may differ.