Hyposplenism

This code represents a condition characterized by reduced or absent splenic function, despite the physical presence of the spleen. The spleen is present but is not performing its normal immunological and filtering roles effectively. This can lead to increased susceptibility to infections and other hematological abnormalities.

Use this code when documentation explicitly states "hyposplenism" or "splenic hypofunction" in a patient who still has their spleen. This diagnosis is often made based on laboratory findings (e.g., Howell-Jolly bodies on a peripheral blood smear) or functional imaging studies, even if the spleen appears morphologically normal.

• Differentiate from anatomical absence of the spleen; this code implies a present but dysfunctional organ.
• Review documentation carefully to ensure the condition is not congenital asplenia or postsurgical absence.
• Consider underlying conditions that may cause hyposplenism, such as celiac disease or sickle cell anemia, and code them accordingly.