CB27

ICD-11 MMS 2026-01

Pleural effusion

Description

Presence of fluid in the pleural cavity resulting from excessive transudation or exudation from the pleural surfaces.

Index terms

  • Pleural effusion
  • PE - [pleural effusion]
  • Pleurisy with effusion
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  • chest fluid NOS
  • hydrothorax
  • pleural cavity fluid
  • pleural effusion with transudate
  • pleural hydrops
  • pleurisy with effusion NOS
  • pleurorrhoea
  • water on chest
  • Exudative pleural effusion
  • exudative pleurisy
  • Pneumococcal pleurisy
  • Streptococcal pleurisy
  • Acute streptococcal pleurisy
  • Chronic streptococcal pleurisy
  • Streptococcal double pleurisy
  • Streptococcal fibrinous pleurisy
  • Streptococcal adhesive pleurisy
  • Subacute streptococcal pleurisy
  • Serofibrinous pleurisy
  • Serous pleurisy
  • Acute serous pleuritis
  • Encysted pleurisy

Inclusions

  • Pleurisy with effusion

Excludes

  • 1B10 – Tuberculosis of the respiratory system
  • CB24 – Chylous effusion
  • MD31 – Pleurisy

Exclusions from above levels

  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
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  • 19 – Certain conditions originating in the perinatal period
  • 20 – Congenital malformations, deformations and chromosomal abnormalities
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • CB20 – Pleural plaque
  • CB21 – Pneumothorax
  • CB22 – Diseases of mediastinum, not elsewhere classified
  • CB23 – Disorders of diaphragm
  • CB24 – Chylous effusion
  • CB25 – Fibrothorax
  • CB26 – Haemothorax
  • CB2Y – Other specified pleural, diaphragm or mediastinal disorders
  • CB2Z – Pleural, diaphragm or mediastinal disorders, unspecified

Foundation entity

Pleural effusion – http://id.who.int/icd/entity/11236328

Allowed postcoordination axes

Part of: 12: Diseases of the respiratory system