2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of Blood And Blood-Forming Organs 280-289 > 2006 ICD-9-CM Diagnosis 288 Diseases of white blood cells View the most recent version of ICD-9-CM 288 Disordered formation of various types of leukocytes or an abnormal accumulation or deficiency of these cells. 288 is a non-specific code that cannot be used to specify a diagnosis 288 Excludes leukemia (204.0-208.9)