Unspecified diseases of blood and blood-forming organs

This code signifies a broad category for conditions affecting the blood and the organs responsible for its production (e.g., bone marrow, spleen, lymph nodes) when a more specific diagnosis is not documented. It indicates an abnormality in the hematopoietic or lymphatic systems without further detail.

This code is appropriate when the medical record indicates a general disorder of the blood or blood-forming organs, but the physician has not specified a definitive diagnosis. It may be used in situations where initial diagnostic workup is incomplete, or when a more precise condition cannot be determined from the available clinical information.

• Avoid using this code if a more specific diagnosis from the 280-288 series can be identified.
• Query the provider for additional specificity if possible to ensure accurate coding and better reflect the patient's condition.
• This code should generally be considered a last resort when no other specific blood disorder code applies.