Disorders of trigeminal nerve

Description

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, haemorrhage, 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 paralysed side on opening of the mouth, and loss of the corneal reflex.

Exclusions from above levels

9C40 – Disorder of the optic nerve
AB72 – Disorders of acoustic nerve
FB56 – neuritis NOS

Show allHide

http://id.who.int/icd/entity/114997967 – Injury of nerves or lumbar spinal cord at abdomen, lower back or pelvis level
http://id.who.int/icd/entity/1454363907 – Injury of nerves or spinal cord at neck level
NA04 – Injury of cranial nerves
NC14 – Injury of nerves at shoulder or upper arm level
NC34 – Injury of nerves at forearm level
NC55 – Injury of nerves at wrist or hand level
NC74 – Injury of nerves at hip or thigh level
NC94 – Injury of nerves at lower leg level
ND15 – Injury of nerves at ankle or foot level
05 – Endocrine, nutritional or metabolic diseases
18 – Complications of pregnancy, childbirth and the puerperium
19 – Certain conditions originating in the perinatal period
22 – Injury, poisoning or certain other consequences of external causes

Child codes

8B82.0 – Trigeminal neuralgia
8B82.Z – Disorders of trigeminal nerve, unspecified

Sibling codes

8B80 – Disorders of olfactory nerve
8B81 – Disorders of vestibulocochlear nerve
8B83 – Disorders of spinal accessory nerve
8B84 – Disorders of hypoglossal nerve
8B85 – Disorders of multiple cranial nerves
8B86 – Disorders of vagus nerve
8B87 – Disorders of glossopharyngeal nerve
8B88 – Disorders of facial nerve
8B8Y – Other specified disorders of cranial nerves
8B8Z – Disorders of cranial nerves, unspecified

Foundation entity

Disorders of trigeminal nerve – http://id.who.int/icd/entity/76391627

Part of: 08: Diseases of the nervous system