MB25.1

ICD-11 MMS 2026-01

Flight of ideas

Description

A nearly continuous flow of thoughts, usually manifested in speech, with rapid changes from topic to topic that are often based on understandable associations, distracting stimuli, or plays on words. In severe cases, the changes may be so rapid that speech is disorganised and incoherent.

Index terms

  • Flight of ideas

Exclusions from above levels

  • 19 – Certain conditions originating in the perinatal period
  • JA66 – Clinical findings on antenatal screening of mother

Sibling codes

  • MB25.0 – Symptoms or signs of thought disorder
  • MB25.2 – Neologisms
  • MB25.3 – Thought blocking
  • MB25.Y – Other specified symptoms or signs of form of thought
  • MB25.Z – Symptoms or signs of form of thought, unspecified

Foundation entity

Flight of ideas – http://id.who.int/icd/entity/2099706633

Part of: MB25: Symptoms or signs involving form of thought › 21: Symptoms, signs or clinical findings, not elsewhere classified