21Symptoms, signs or clinical findings, not elsewhere classified
Mental or behavioural symptoms, signs or clinical findings
MB27Symptoms or signs involving perceptual disturbance
MB27.2Hallucinations
MB27.26
category
Tactile hallucinations
Definition Hallucinations involving the perception of being touched (e.g., feeling like bugs are crawling on the skin, pins being stuck into one's finger) that are not restricted to the period of awakening or the onset of sleep.
Also indexed as
Formication Tactile hallucinations
International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).
Release 2026-01.
View this entity in the official WHO ICD-11 browser .
This page reproduces WHO classification content for reference. It is not
medical advice and must not be used to diagnose or treat. For coding
decisions, consult the official release and your national coding guidelines.
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