3B81.9

ICD-11 MMS 2026-01

Fibrosis 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 formation of excess fibrous connective tissue leading to partial or complete degradation of the spleen. This disease may present with increased susceptibility to infection. Confirmation is through medical imaging.

Index terms

  • Fibrosis of spleen
  • fibrotic 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
  • 3B81.2 – Atrophy of spleen
  • 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.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

Fibrosis of spleen – http://id.who.int/icd/entity/197440403

Allowed postcoordination axes

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