ICD-11 MMS

08 Diseases of the nervous system

Disorders of nerve root, plexus or peripheral nerves  (8B80-8C4Z)

Disorders of cranial nerves  (8B80-8B8Z)

8B88 Disorders of facial nerve

8B88.2 Hemifacial spasm

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01


Hemifacial spasm (HFS) is a movement disorder most commonly caused by vascular compression of the VII cranial nerve at its root exit zone from the brainstem. It manifests as involuntary contractions and twitching on ipsilateral side of the face.

synonyms

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