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D73.0

Billable

Hyposplenism

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Hyposplenism is a condition where the spleen is not functioning properly or is underactive, meaning it cannot effectively filter blood and fight infections as it normally should. This can occur due to the spleen being removed, damaged, or diseased.

Coding Tips

  • •Investigate the underlying cause of hyposplenism (such as post-splenectomy status, sickle cell disease, or other conditions) and code that condition separately if documented, as it may affect treatment and clinical management
  • •Ensure documentation specifies whether this is functional asplenia (spleen present but not working) versus anatomical asplenia (spleen removed), as this distinction impacts clinical care and coding accuracy

Excludes 1 — Do NOT code together

  • asplenia (congenital) (Q89.01)
  • postsurgical absence of spleen (Z90.81)

Code Hierarchy

└D73Diseases of spleen└D73.0Hyposplenism
└D73.0Hyposplenism

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