MD11.7

ICD-11 MMS 2026-01

Hyperventilation

Description

Hyperventilation refers to an increase in the rate of alveolar ventilation that is excessive for the rate of metabolic carbon dioxide production, resulting in a decrease in arterial PCO2 to below the normal range of 37 to 43 mm Hg. Hyperventilation should be distinguished from tachypnoea, an increase in respiratory frequency, and from hyperpnea, an increase in minute volume of ventilation.

Index terms

  • Hyperventilation
  • HV - [hyperventilation]
  • hyperpnoea
Show allHide
  • hyperpnoea tetany
  • hyperventilating
  • hyperventilation tetany
  • increased respiratory rate
  • laboured breathing
  • overbreathing

Exclusions from above levels

  • CB00 – Adult acute respiratory distress syndrome
  • KB23 – Respiratory distress of newborn
  • KB2D – Respiratory failure of newborn
Show allHide
  • MD33 – Respiratory arrest
  • 19 – Certain conditions originating in the perinatal period
  • JA66 – Clinical findings on antenatal screening of mother

Sibling codes

Foundation entity

Hyperventilation – http://id.who.int/icd/entity/1048499416

Part of: MD11: Abnormalities of breathing › 21: Symptoms, signs or clinical findings, not elsewhere classified