leukemia associated with hyperplasia and overactivity of the lymphoid tissue; there are increased numbers of circulating malignant lymphocytes and lymphoblasts.
A malignant lymphocytic neoplasm of B-cell or T-cell lineage involving primarily the bone marrow and the peripheral blood. This category includes precursor or acute lymphoblastic leukemias and chronic leukemias.
acute leukemia in which lymphoblasts and their progenitor cells predominate; the most common childhood cancer and accounts for 20 percent of adult acute leukemia; common ALL antigen (CALLA) expressed in most cases.
A quickly progressing disease in which too many immature white blood cells called lymphoblasts are found in the blood and bone marrow.
Leukemia with an acute onset, characterized by the presence of lymphoblasts in the bone marrow and the peripheral blood. It includes the precursor B lymphoblastic leukemia and precursor T lymphoblastic leukemia.
chronic leukemia characterized by morphologically mature but immunologically less mature lymphocytes; manifested by an abnormal accumulation of these cells in blood, bone marrow, and lymphatic tissue.
A slowly progressing disease in which too many white blood cells (called lymphocytes) are found in the body.
The most common type of chronic lymphoid leukemia. It comprises 90% of chronic lymphoid leukemias in the United States. Morphologically, the neoplastic cells are small, round B-lymphocytes. This type of leukemia is not considered to be curable with available therapy. (WHO, 2001)
leukemia associated with hyperplasia and overactivity of the lymphoid tissue; there are increased numbers of circulating malignant lymphocytes and lymphoblasts.
A malignant lymphocytic neoplasm of B-cell or T-cell lineage involving primarily the bone marrow and the peripheral blood. This category includes precursor or acute lymphoblastic leukemias and chronic leukemias.
2007 ICD-9-CM Diagnosis Code 204 
2007 ICD-9-CM Diagnosis Code 204.01
