ICD-11 code : 8B82;
Preferred Label : Disorders of trigeminal nerve;
ICD-11 definition : The trigeminal nerve is a mixed nerve with three divisions, ophthalmic, maxillary
and mandibular divisions, that provides sensory innervation to the face and mucous
membrane of the oral and nasal cavities and motor innervations to the muscle of mastication,
tensor tympani, tensor veli palatine, mylohyoid and anterior belly of the digastric
muscle. The trigeminal nuclear complex extends throughout the brainstem, hence it
is susceptible to many pathologic processes including demyelination, ischemia, hemorrhage,
infectious and non-infectious inflammation and neoplasm leading to symptoms of trigeminal
nerve involvement. Compression of the sensory nerve root outside the brain stem by
a vascular loop leads to trigeminal neuralgia. Symptoms and signs depend on the site
of the lesion. In general, a trigeminal nerve disorder is associated with hemisensory
facial loss, deviation of the jaw to paralyzed side on opening of the mouth, and loss
of the corneal reflex.;
ICD-11 synonym : Disorders of 5th cranial nerve; disorders of the fifth cranial nerve;
ICD-11 "unspecified" category code : 8B82.Z;
Origin ID : 76391627;
UMLS CUI : C0152177;
Automatic exact mappings (from CISMeF team)
- Currated CISMeF NLP mapping
- ICD-10 Mapping
- Semantic type(s)
- UMLS correspondences (same concept)
The trigeminal nerve is a mixed nerve with three divisions, ophthalmic, maxillary
and mandibular divisions, that provides sensory innervation to the face and mucous
membrane of the oral and nasal cavities and motor innervations to the muscle of mastication,
tensor tympani, tensor veli palatine, mylohyoid and anterior belly of the digastric
muscle. The trigeminal nuclear complex extends throughout the brainstem, hence it
is susceptible to many pathologic processes including demyelination, ischemia, hemorrhage,
infectious and non-infectious inflammation and neoplasm leading to symptoms of trigeminal
nerve involvement. Compression of the sensory nerve root outside the brain stem by
a vascular loop leads to trigeminal neuralgia. Symptoms and signs depend on the site
of the lesion. In general, a trigeminal nerve disorder is associated with hemisensory
facial loss, deviation of the jaw to paralyzed side on opening of the mouth, and loss
of the corneal reflex.
