3B81.2

ICD-11 MMS 2026-01

Atrophy of spleen

Description

A disease caused by determinants arising after birth, during the antenatal period or by genetically inherited factors. This disease is characterised by partial or complete degradation of the spleen. This disease may present with increased susceptibility to infection. Confirmation is through medical imaging.

Index terms

  • Atrophy of spleen
  • hyposplenism
  • splenic atrophy
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  • Hyposplenism due to previous infarction of spleen
  • Degenerative diseases of the spleen

Exclusions from above levels

  • 04 – Diseases of the immune system
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth or the puerperium
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  • 19 – Certain conditions originating in the perinatal period
  • 20 – Congenital malformations, deformations or chromosomal abnormalities
  • 22 – Injury, poisoning or certain other consequences of external causes
  • http://id.who.int/icd/entity/1000704511 – Human immunodeficiency virus disease
  • JB64.1 – Other diseases of the blood or blood-forming organs or certain disorders involving the immune mechanism complicating pregnancy, childbirth or the puerperium

Sibling codes

  • 3B81.0 – Tumour-like conditions of spleen
  • 3B81.1 – Postsurgical asplenia
  • 3B81.3 – Nontraumatic laceration or rupture of spleen
  • 3B81.4 – Splenosis
  • 3B81.5 – Splenic cyst or pseudocyst
  • 3B81.6 – Infarction of spleen
  • 3B81.7 – Infection of spleen
  • 3B81.8 – Torsion of spleen
  • 3B81.9 – Fibrosis of spleen
  • 3B81.A – Perisplenitis
  • 3B81.B – Hypersplenism
  • 3B81.C – Chronic congestive splenomegaly
  • 3B81.Y – Other specified acquired disorders of spleen
  • 3B81.Z – Acquired disorders of spleen, unspecified

Foundation entity

Atrophy of spleen – http://id.who.int/icd/entity/660521540

Part of: 3B81: Acquired disorders of spleen › 03: Diseases of the blood or blood-forming organs