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ALL MEDICAL CODES IN CATEGORY 6 (Diseases of the Nervous System)

2025 ICD-10-CM code G44.039

Episodic paroxysmal hemicrania, not intractable. This is a rare headache disorder characterized by frequent, short-lasting, one-sided headaches with autonomic symptoms like tearing, runny nose, and sweating. The "not intractable" designation indicates the headaches respond to treatment.

2025 ICD-10-CM code G60

Hereditary and idiopathic neuropathy encompasses a group of disorders affecting the peripheral nervous system. These conditions, either inherited or of unknown cause, impact the extremities, leading to symptoms like numbness, pain, and weakness.

2025 ICD-10-CM code G40.30

Generalized idiopathic epilepsy and epileptic syndromes, not intractable. This refers to a group of epileptic disorders caused by abnormal electrical activity on both sides of the brain, without structural abnormalities, and responsive to treatment.

2025 ICD-10-CM code G43.511

Persistent migraine aura without cerebral infarction, intractable, with status migrainosus.

2025 ICD-10-CM code G61.81

Chronic inflammatory demyelinating polyneuritis (CIDP) is a rare autoimmune disorder causing progressive muscle weakness, numbness, and other symptoms due to peripheral nerve inflammation and demyelination.

2025 ICD-10-CM code G63

Polyneuropathy in diseases classified elsewhere. Code first the underlying disease.

2025 ICD-10-CM code G40.001

Focal (partial) idiopathic epilepsy with localized onset seizures, not intractable, with status epilepticus.

2025 ICD-10-CM code G37.2

Central pontine myelinolysis is a neurological disorder characterized by damage to the myelin sheath of nerve cells in the pons (part of the brainstem), typically due to severe or prolonged hyponatremia, often after rapid correction of sodium levels.

2025 ICD-10-CM code G40.00

Focal epilepsy with localized onset seizures, of unknown cause, and responsive to treatment.

2025 ICD-10-CM code G40.10

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable.

2025 ICD-10-CM code G43.61

Persistent migraine aura with cerebral infarction, intractable. This signifies a persistent aura following a migraine, accompanied by a cerebral infarction (stroke), and resistant to treatment.

2025 ICD-10-CM code G43.839

Intractable menstrual migraine without status migrainosus. This refers to a severe, treatment-resistant migraine headache specifically associated with menstruation, lasting less than 72 hours.

2025 ICD-10-CM code G24.1

Genetic torsion dystonia, also known as dystonia musculorum deformans, is a neurological movement disorder characterized by involuntary muscle contractions causing twisting and repetitive movements or abnormal postures.

2025 ICD-10-CM code G40.109

Focal (partial) symptomatic epilepsy with simple partial seizures, responsive to treatment, without status epilepticus.

2025 ICD-10-CM code G25.1

Drug-induced tremor. Use additional code to identify the drug that caused the condition.

2025 ICD-10-CM code G31.0

Frontotemporal dementia

2025 ICD-10-CM code G25.69

Other tics of organic origin. This code excludes habit spasm (F95.9), tic NOS (F95.9), and Tourette's syndrome (F95.2).

2025 ICD-10-CM code G25.81

Restless legs syndrome (RLS).

2025 ICD-10-CM code G56.31

Lesion of radial nerve, right upper limb. This refers to a non-traumatic injury affecting the radial nerve specifically in the right upper extremity.

2025 ICD-10-CM code G40.219

Intractable focal epilepsy with complex partial seizures, but without status epilepticus.

2025 ICD-10-CM code G43.40

Hemiplegic migraine, not intractable. This is a severe but treatable migraine variant characterized by temporary hemiplegia (paralysis on one side of the body) along with other aura symptoms that precede the headache.

2025 ICD-10-CM code G57.33

Lesion of lateral popliteal nerve, bilateral lower limbs.

2025 ICD-10-CM code G62.0

Drug-induced polyneuropathy. Use an additional code for adverse effect, if applicable, to identify the drug (T36-T50 with fifth or sixth character 5).

2025 ICD-10-CM code G97

Intraoperative and postprocedural complications and disorders of the nervous system, not elsewhere classified.

2025 ICD-10-CM code G43.101

Migraine with aura, not intractable, with status migrainosus.

2025 ICD-10-CM code G40.21

Intractable focal (partial) epilepsy with complex partial seizures.

2025 ICD-10-CM code G72.1

Alcoholic myopathy. Use additional code to identify alcoholism (F10.-).

2025 ICD-10-CM code G71.8

Other primary disorders of muscles. This code is used for primary muscle disorders not otherwise specified in the ICD-10-CM.

2025 ICD-10-CM code G44.40

Drug-induced headache, not elsewhere classified, not intractable. This refers to a headache caused by overuse of certain drugs, responsive to treatment.

2025 ICD-10-CM code G43.829

Menstrual migraine, not intractable, without status migrainosus. This refers to a migraine specifically linked to menstruation, responsive to treatment, and lasting less than 72 hours.

2025 ICD-10-CM code G65.0

Sequelae of Guillain-Barre syndrome. This code is used to report conditions that occur after the acute phase of Guillain-Barre syndrome has resolved.

2025 ICD-10-CM code G40.11

Intractable localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures.

2025 ICD-10-CM code G61.1

Serum neuropathy. Use additional code for adverse effect, if applicable, to identify serum (T50.-).

2025 ICD-10-CM code G93.7

Reye's syndrome. Code first poisoning due to salicylates, if applicable (T39.0-, with sixth character 1-4). Use additional code for adverse effect due to salicylates, if applicable (T39.0-, with sixth character 5).

2025 ICD-10-CM code G98

This code encompasses other disorders of the nervous system that are not classified elsewhere.

2025 ICD-10-CM code G40.319

Intractable generalized idiopathic epilepsy and epileptic syndromes, without status epilepticus.

2025 ICD-10-CM code G95.1

Vascular myelopathy is a condition affecting the spinal cord due to problems with its blood supply.

2025 ICD-10-CM code G43.B

Ophthalmoplegic migraine, a rare neurological condition involving headache and temporary eye muscle weakness or paralysis.

2025 ICD-10-CM code G93.89

Other specified disorders of brain. This code is used when the provider documents a brain disorder not specifically described by another code.

2025 ICD-10-CM code G47.13

Recurrent hypersomnia, including Kleine-Levin syndrome and menstrual-related hypersomnia.

2025 ICD-10-CM code G44.091

Other intractable trigeminal autonomic cephalgias (TACs) are headache syndromes that don't respond to treatment. They cause one-sided head or facial pain, along with symptoms like tearing, eye redness, or a droopy eyelid.

2025 ICD-10-CM code G40.804

Other epilepsy, intractable, without status epilepticus. This condition involves seizures that are not controlled with treatment and do not last longer than 5 minutes.

2025 ICD-10-CM code G83.89

Other specified paralytic syndromes.These are conditions causing loss of muscle function not described by other codes.

2025 ICD-10-CM code G40.A11

Intractable absence epileptic syndrome with status epilepticus. This involves seizures characterized by staring spells or altered consciousness occurring so frequently that there appears to be no interval between them, and are unresponsive to treatment.

2025 ICD-10-CM code G40.8

Other epilepsy and recurrent seizures. This includes epilepsies and epileptic syndromes that are undetermined as to whether they are focal or generalized, and Landau-Kleffner syndrome.

2025 ICD-10-CM code G57.01

Lesion of the sciatic nerve of the right lower limb.

2025 ICD-10-CM code G40.4

Other generalized epilepsy and epileptic syndromes. This encompasses various generalized epilepsy syndromes not classified elsewhere, characterized by seizures originating in both brain hemispheres simultaneously.

2025 ICD-10-CM code G96.1

Disorders of meninges, not elsewhere classified.

2025 ICD-10-CM code G43.619

Persistent migraine aura with cerebral infarction, intractable, without status migrainosus. This condition involves a persistent aura (visual or sensory disturbances) following a migraine headache, accompanied by a cerebral infarction (stroke), and is unresponsive to treatment.The migraine lasts less than 72 hours and does not involve status migrainosus (a severe and prolonged migraine attack).

2025 ICD-10-CM code G90.51

Complex regional pain syndrome I (CRPS I) of an upper limb.