8D68

ICD-11 MMS 2026-01

Porencephalic cyst

Description

Cavity within the cerebral hemisphere that communicates directly with the ventricular system. Ischemic necrosis in utero or later in life can cause the adjacent ventricular region to expand into the stroke cavity forming, forming a cyst.

Index terms

  • Porencephalic cyst
  • acquired porencephaly
  • nondevelopmental porencephaly

Exclusions from above levels

  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
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  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • 8D60 – Increased intracranial pressure
  • 8D61 – Intracranial hypotension
  • 8D62 – Cerebrospinal fluid rhinorrhoea
  • 8D63 – Cerebrospinal fluid otorrhoea
  • 8D64 – Hydrocephalus
  • 8D65 – Cerebrospinal fluid fistula
  • 8D66 – Syringomyelia or syringobulbia
  • 8D67 – Intracranial arachnoid cyst
  • 8D6Y – Other specified disorders of cerebrospinal fluid pressure or flow
  • 8D6Z – Disorders of cerebrospinal fluid pressure or flow, unspecified

Foundation entity

Porencephalic cyst – http://id.who.int/icd/entity/39546655

Part of: 08: Diseases of the nervous system