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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 G43.511
Persistent migraine aura without cerebral infarction, intractable, with status migrainosus.
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 G63
Polyneuropathy in diseases classified elsewhere. Code first the underlying disease.
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 G43.839
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 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 G57.33
Lesion of lateral popliteal nerve, bilateral lower limbs.
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 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 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 G95.1
Vascular myelopathy is a condition affecting the spinal cord due to problems with its blood supply.
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 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 G40.11
Intractable localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures.
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 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 G47.62
Sleep-related leg cramps are characterized by sudden, severe pain in the leg or foot due to involuntary muscle contractions, lasting seconds to minutes, disrupting sleep.
2025 ICD-10-CM code G54.3
Thoracic root disorders not elsewhere classified.
2025 ICD-10-CM code G44.01
Episodic cluster headache. Characterized by severe, sharp, burning pain in or around the eye or one side of the head, often accompanied by eye watering, redness, and/or drooping eyelids on the affected side.
2025 ICD-10-CM code G56.41
Causalgia of the right upper limb. This condition involves prolonged severe pain, changes in skin color or temperature, and swelling, typically following injury to the central or peripheral nervous system.
2025 ICD-10-CM code G47.21
Delayed sleep phase type circadian rhythm sleep disorder. Characterized by a sleep cycle delay of 2 or more hours beyond a reasonable bedtime.
2025 ICD-10-CM code G43.611
Persistent migraine aura with cerebral infarction, intractable, with status migrainosus. This condition involves a persistent migraine aura accompanied by a stroke (cerebral infarction) and prolonged severe headache, all unresponsive to treatment.
2025 ICD-10-CM code G93.32
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). This code encompasses both myalgic encephalomyelitis and chronic fatigue syndrome.
2025 ICD-10-CM code G96.8
Other specified disorders of central nervous system
2025 ICD-10-CM code G40.40
Other generalized epilepsy and epileptic syndromes, not intractable. This refers to a group of epileptic disorders where seizures are caused by abnormal electrical activity on both sides of the brain, without structural brain abnormalities, and are controllable with treatment.
2025 ICD-10-CM code G40.3
Generalized idiopathic epilepsy and epileptic syndromes.Consider also MERRF syndrome (E88.42), if applicable.
2025 ICD-10-CM code G43.411
Intractable hemiplegic migraine with status migrainosus.
2025 ICD-10-CM code G44.229
Chronic tension-type headache, not intractable. This signifies head pain due to muscle tension occurring more than 15 times a month for at least 3 months, but responsive to treatment.
2025 ICD-10-CM code G47.27
This code signifies a circadian rhythm sleep disorder existing as a component of another medical condition. The primary disease should be coded first.
2025 ICD-10-CM code G43.81
Other intractable migraine.A type of migraine not otherwise specified that is resistant to treatment.
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 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 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 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 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 G96.81
Intracranial hypotension. This condition involves low cerebrospinal fluid pressure within the skull.
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