Lymphocytopenia

This code signifies an abnormally low count of lymphocytes, a type of white blood cell crucial for the immune system. Lymphocytopenia can indicate an underlying medical condition affecting immune function or bone marrow production.

Apply this code when documentation explicitly states a diagnosis of lymphocytopenia or a low lymphocyte count below the normal reference range. This often occurs in patients with viral infections, autoimmune diseases, malnutrition, or those undergoing certain medical treatments like chemotherapy.

• Ensure the physician's documentation clearly states "lymphocytopenia" or a specific low lymphocyte count.
• Do not confuse with other white blood cell disorders; this code is specific to lymphocytes.
• Always sequence this code after the underlying cause of the lymphocytopenia, if known and documented.