Other specified disease of white blood cells

This code represents various uncommon or less precisely defined disorders affecting white blood cells (leukocytes) that do not fit into more specific categories like leukemia, agranulocytosis, or eosinophilia. It encompasses conditions where the white blood cell count or function is abnormal, but the exact nature of the disease is not fully characterized by other codes.

Use this code when documentation specifies a white blood cell disorder that is not otherwise classified, such as certain types of leukemoid reactions, atypical lymphocytosis, or unclassified myeloproliferative disorders. It is appropriate when the physician's diagnosis explicitly states "other specified disease of white blood cells" or a similar non-specific but defined condition.

• Avoid using this code if a more specific ICD-9-CM code for a white blood cell disorder is available and documented.
• Ensure the medical record clearly identifies the specific "other" condition to support the use of this code, even if it's not a common diagnosis.
• This code is a "catch-all" for less common or ill-defined white blood cell pathologies; always query for more specificity if possible.