MB25

ICD-11 MMS 2026-01

Symptoms or signs involving form of thought

Description

Symptoms and signs involving the logical sequence and coherence of thought, typically manifest in speech, including thought disorder (circumstantiality, tangentiality, disorganised thinking and incoherence), flight of ideas, neologisms, and thought blocking.

Exclusions from above levels

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

Child codes

  • MB25.0 – Symptoms or signs of thought disorder
  • MB25.1 – Flight of ideas
  • 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

Sibling codes

  • MB20 – Symptoms, signs or clinical findings involving consciousness
  • MB21 – Symptoms, signs or clinical findings involving cognition
  • MB22 – Symptoms or signs involving motivation or energy
  • MB23 – Symptoms or signs involving appearance or behaviour
  • MB24 – Symptoms or signs involving mood or affect
  • MB26 – Symptoms or signs involving content of thought
  • MB27 – Symptoms or signs involving perceptual disturbance
  • MB28 – Symptoms or signs related to personality features
  • MB29 – Symptoms or signs involving eating and related behaviour
  • MB2A – Symptoms or signs involving elimination
  • MB2Y – Other specified mental or behavioural symptoms, signs or clinical findings

Foundation entity

Symptoms or signs involving form of thought – http://id.who.int/icd/entity/1707021193

Part of: 21: Symptoms, signs or clinical findings, not elsewhere classified