MB27.4

ICD-11 MMS 2026-01

Illusions

Description

A misinterpretation of a true sensation (e.g., hearing voices in the sound of running water, the perception of figures in shadows).

Index terms

  • Illusions

Excludes

  • 9D54 – Visual illusions

Exclusions from above levels

  • MB40.5 – disturbances of skin sensation
  • 19 – Certain conditions originating in the perinatal period
  • JA66 – Clinical findings on antenatal screening of mother

Sibling codes

  • MB27.0 – Depersonalisation
  • MB27.1 – Derealisation
  • MB27.2 – Hallucinations
  • MB27.3 – Disturbance of body image
  • MB27.Y – Other specified symptoms or signs of perceptual disturbance
  • MB27.Z – Symptoms or signs of perceptual disturbance, unspecified

Foundation entity

Illusions – http://id.who.int/icd/entity/17527109

Part of: MB27: Symptoms or signs involving perceptual disturbance › 21: Symptoms, signs or clinical findings, not elsewhere classified