MB27.23

ICD-11 MMS 2026-01

Hypnagogic hallucinations

Description

Hallucinations that occur at the onset of sleep, most commonly of the visual, tactile or auditory modality.

Index terms

  • Hypnagogic hallucinations

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

  • MB27.20 – Auditory hallucinations
  • MB27.21 – Gustatory hallucinations
  • MB27.22 – Hypnopompic hallucinations
  • MB27.24 – Olfactory hallucinations
  • MB27.25 – Somatic hallucinations
  • MB27.26 – Tactile hallucinations
  • MB27.27 – Visual hallucinations
  • MB27.2Y – Other specified hallucinations
  • MB27.2Z – Hallucinations, unspecified

Foundation entity

Hypnagogic hallucinations – http://id.who.int/icd/entity/329788118

Part of: MB27.2: Hallucinations › MB27: Symptoms or signs involving perceptual disturbance › 21: Symptoms, signs or clinical findings, not elsewhere classified