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ICD-10 Code or Description Search:
Diseases of the nervous system -Back to Parent Categories

*Header codes are not valid for HIPAA-covered transactions
HeaderDescription
G00*Bacterial meningitis, not elsewhere classified
G03*Meningitis due to other and unspecified causes
G04*Encephalitis, myelitis and encephalomyelitis
G04.0*Acute disseminated encephalitis and encephalomyelitis (ADEM)
G04.3*Acute necrotizing hemorrhagic encephalopathy
G04.8*Other encephalitis, myelitis and encephalomyelitis
G04.9*Encephalitis, myelitis and encephalomyelitis, unspecified
G05*Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere
G06*Intracranial and intraspinal abscess and granuloma
G11*Hereditary ataxia
G12*Spinal muscular atrophy and related syndromes
G12.2*Motor neuron disease
G13*Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere
G21*Secondary parkinsonism
G21.1*Other drug-induced secondary parkinsonism
G23*Other degenerative diseases of basal ganglia
G24*Dystonia
G24.0*Drug induced dystonia
G25*Other extrapyramidal and movement disorders
G25.6*Drug induced tics and other tics of organic origin
G25.7*Other and unspecified drug induced movement disorders
G25.8*Other specified extrapyramidal and movement disorders
G30*Alzheimer's disease
G31*Other degenerative diseases of nervous system, not elsewhere classified
G31.0*Frontotemporal dementia
G31.8*Other specified degenerative diseases of nervous system
G32*Other degenerative disorders of nervous system in diseases classified elsewhere
G32.8*Other specified degenerative disorders of nervous system in diseases classified elsewhere
G36*Other acute disseminated demyelination
G37*Other demyelinating diseases of central nervous system
G40*Epilepsy and recurrent seizures
G40.0*Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset
G40.00*Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable
G40.01*Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable
G40.1*Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures
G40.10*Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable
G40.11*Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable
G40.2*Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures
G40.20*Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable
G40.21*Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable
G40.3*Generalized idiopathic epilepsy and epileptic syndromes
G40.30*Generalized idiopathic epilepsy and epileptic syndromes, not intractable
G40.31*Generalized idiopathic epilepsy and epileptic syndromes, intractable
G40.A*Absence epileptic syndrome
G40.A0*Absence epileptic syndrome, not intractable
G40.A1*Absence epileptic syndrome, intractable
G40.B*Juvenile myoclonic epilepsy [impulsive petit mal]
G40.B0*Juvenile myoclonic epilepsy, not intractable
G40.B1*Juvenile myoclonic epilepsy, intractable
G40.4*Other generalized epilepsy and epileptic syndromes
G40.40*Other generalized epilepsy and epileptic syndromes, not intractable
G40.41*Other generalized epilepsy and epileptic syndromes, intractable
G40.5*Epileptic seizures related to external causes
G40.50*Epileptic seizures related to external causes, not intractable
G40.8*Other epilepsy and recurrent seizures
G40.80*Other epilepsy
G40.81*Lennox-Gastaut syndrome
G40.82*Epileptic spasms
G40.9*Epilepsy, unspecified
G40.90*Epilepsy, unspecified, not intractable
G40.91*Epilepsy, unspecified, intractable
G43*Migraine
G43.0*Migraine without aura
G43.00*Migraine without aura, not intractable
G43.01*Migraine without aura, intractable
G43.1*Migraine with aura
G43.10*Migraine with aura, not intractable
G43.11*Migraine with aura, intractable
G43.4*Hemiplegic migraine
G43.40*Hemiplegic migraine, not intractable
G43.41*Hemiplegic migraine, intractable
G43.5*Persistent migraine aura without cerebral infarction
G43.50*Persistent migraine aura without cerebral infarction, not intractable
G43.51*Persistent migraine aura without cerebral infarction, intractable
G43.6*Persistent migraine aura with cerebral infarction
G43.60*Persistent migraine aura with cerebral infarction, not intractable
G43.61*Persistent migraine aura with cerebral infarction, intractable
G43.7*Chronic migraine without aura
G43.70*Chronic migraine without aura, not intractable
G43.71*Chronic migraine without aura, intractable
G43.A*Cyclical vomiting
G43.B*Ophthalmoplegic migraine
G43.C*Periodic headache syndromes in child or adult
G43.D*Abdominal migraine
G43.8*Other migraine
G43.80*Other migraine, not intractable
G43.81*Other migraine, intractable
G43.82*Menstrual migraine, not intractable
G43.83*Menstrual migraine, intractable
G43.9*Migraine, unspecified
G43.90*Migraine, unspecified, not intractable
G43.91*Migraine, unspecified, intractable
G44*Other headache syndromes
G44.0*Cluster headaches and other trigeminal autonomic cephalgias (TAC)
G44.00*Cluster headache syndrome, unspecified
G44.01*Episodic cluster headache
G44.02*Chronic cluster headache
G44.03*Episodic paroxysmal hemicrania
G44.04*Chronic paroxysmal hemicrania
G44.05*Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT)
G44.09*Other trigeminal autonomic cephalgias (TAC)
G44.2*Tension-type headache
G44.20*Tension-type headache, unspecified
G44.21*Episodic tension-type headache
G44.22*Chronic tension-type headache
G44.3*Post-traumatic headache
G44.30*Post-traumatic headache, unspecified
G44.31*Acute post-traumatic headache
G44.32*Chronic post-traumatic headache
G44.4*Drug-induced headache, not elsewhere classified
G44.5*Complicated headache syndromes
G44.8*Other specified headache syndromes
G45*Transient cerebral ischemic attacks and related syndromes
G46*Vascular syndromes of brain in cerebrovascular diseases
G47*Sleep disorders
G47.0*Insomnia
G47.1*Hypersomnia
G47.2*Circadian rhythm sleep disorders
G47.3*Sleep apnea
G47.4*Narcolepsy and cataplexy
G47.41*Narcolepsy
G47.42*Narcolepsy in conditions classified elsewhere
G47.5*Parasomnia
G47.6*Sleep related movement disorders
G50*Disorders of trigeminal nerve
G51*Facial nerve disorders
G51.3*Clonic hemifacial spasm
G52*Disorders of other cranial nerves
G54*Nerve root and plexus disorders
G56*Mononeuropathies of upper limb
G56.0*Carpal tunnel syndrome
G56.1*Other lesions of median nerve
G56.2*Lesion of ulnar nerve
G56.3*Lesion of radial nerve
G56.4*Causalgia of upper limb
G56.8*Other specified mononeuropathies of upper limb
G56.9*Unspecified mononeuropathy of upper limb
G57*Mononeuropathies of lower limb
G57.0*Lesion of sciatic nerve
G57.1*Meralgia paresthetica
G57.2*Lesion of femoral nerve
G57.3*Lesion of lateral popliteal nerve
G57.4*Lesion of medial popliteal nerve
G57.5*Tarsal tunnel syndrome
G57.6*Lesion of plantar nerve
G57.7*Causalgia of lower limb
G57.8*Other specified mononeuropathies of lower limb
G57.9*Unspecified mononeuropathy of lower limb
G58*Other mononeuropathies
G60*Hereditary and idiopathic neuropathy
G61*Inflammatory polyneuropathy
G61.8*Other inflammatory polyneuropathies
G62*Other and unspecified polyneuropathies
G62.8*Other specified polyneuropathies
G65*Sequelae of inflammatory and toxic polyneuropathies
G70*Myasthenia gravis and other myoneural disorders
G70.0*Myasthenia gravis
G70.8*Other specified myoneural disorders
G71*Primary disorders of muscles
G71.0*Muscular dystrophy
G71.1*Myotonic disorders
G72*Other and unspecified myopathies
G72.4*Inflammatory and immune myopathies, not elsewhere classified
G72.8*Other specified myopathies
G73*Disorders of myoneural junction and muscle in diseases classified elsewhere
G80*Cerebral palsy
G81*Hemiplegia and hemiparesis
G81.0*Flaccid hemiplegia
G81.1*Spastic hemiplegia
G81.9*Hemiplegia, unspecified
G82*Paraplegia (paraparesis) and quadriplegia (quadriparesis)
G82.2*Paraplegia
G82.5*Quadriplegia
G83*Other paralytic syndromes
G83.1*Monoplegia of lower limb
G83.2*Monoplegia of upper limb
G83.3*Monoplegia, unspecified
G83.8*Other specified paralytic syndromes
G89*Pain, not elsewhere classified
G89.1*Acute pain, not elsewhere classified
G89.2*Chronic pain, not elsewhere classified
G90*Disorders of autonomic nervous system
G90.0*Idiopathic peripheral autonomic neuropathy
G90.5*Complex regional pain syndrome I (CRPS I)
G90.51*Complex regional pain syndrome I of upper limb
G90.52*Complex regional pain syndrome I of lower limb
G91*Hydrocephalus
G93*Other disorders of brain
G93.4*Other and unspecified encephalopathy
G93.8*Other specified disorders of brain
G95*Other and unspecified diseases of spinal cord
G95.1*Vascular myelopathies
G95.2*Other and unspecified cord compression
G95.8*Other specified diseases of spinal cord
G96*Other disorders of central nervous system
G96.1*Disorders of meninges, not elsewhere classified
G97*Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified
G97.3*Intraoperative hemorrhage and hematoma of a nervous system organ or structure complicating a procedure
G97.4*Accidental puncture and laceration of a nervous system organ or structure during a procedure
G97.5*Postprocedural hemorrhage of a nervous system organ or structure following a procedure
G97.6*Postprocedural hematoma and seroma of a nervous system organ or structure following a procedure
G97.8*Other intraoperative and postprocedural complications and disorders of nervous system
G98*Other disorders of nervous system not elsewhere classified
G99*Other disorders of nervous system in diseases classified elsewhere

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