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ALL MEDICAL CODES IN CATEGORY G40-G47: Episodic and paroxysmal disorders

2025 ICD-10-CM code G40.80

Other specified epilepsy not elsewhere classified.

2025 ICD-10-CM code G47.24

Free-running type circadian rhythm sleep disorder is a condition where the body's internal clock, which regulates sleep-wake cycles, runs on a cycle longer than 24 hours. This results in the sleep-wake times shifting later each day.

2025 ICD-10-CM code G44.329

Chronic post-traumatic headache, not intractable. This condition refers to a headache that develops within seven days of a traumatic brain injury or after regaining consciousness, lasts for more than three months, and responds to treatment.

2025 ICD-10-CM code G40.019

Intractable, focal, partial, localization-related, idiopathic epilepsy and epileptic syndromes with seizures of localized onset, without status epilepticus.

2025 ICD-10-CM code G40.011

Intractable focal (or partial) epilepsy with localized onset seizures and status epilepticus. The cause of the seizures is unknown.

2025 ICD-10-CM code G40.813

Lennox-Gastaut syndrome, intractable, with status epilepticus. This is a severe form of childhood epilepsy characterized by frequent seizures of different types, cognitive impairment, and a highly abnormal EEG.

2025 ICD-10-CM code G40.319

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

2025 ICD-10-CM code G40.419

A form of epilepsy characterized by generalized seizures, meaning they affect both sides of the brain, that are difficult to control with medication (intractable) and do not progress to status epilepticus (a prolonged seizure or series of seizures).

2025 ICD-10-CM code G40.B19

Intractable juvenile myoclonic epilepsy without status epilepticus.

2025 ICD-10-CM code G40.919

A form of epilepsy that is not responsive to treatment and is not accompanied by status epilepticus (a prolonged seizure or a series of seizures without recovery).

2025 ICD-10-CM code G40.833

Dravet syndrome, intractable, with status epilepticus.

2025 ICD-10-CM code G43.811

Other intractable migraine with status migrainosus. This signifies a severe, persistent migraine lasting over 72 hours that doesn't respond to standard treatments.

2025 ICD-10-CM code G47.411

Narcolepsy with cataplexy. This condition is a sleep disorder characterized by excessive daytime sleepiness and sudden muscle weakness triggered by strong emotions.

2025 ICD-10-CM code G43.70

Chronic migraine without aura, not intractable. This signifies a persistent migraine condition occurring for 15 or more days a month for 3 consecutive months, with 8 headaches classified as migrainous, but responsive to treatment and not preceded by aura.

2025 ICD-10-CM code G43.60

Persistent migraine aura with cerebral infarction, not intractable. This signifies a persistent aura following a migraine, accompanied by a cerebral infarction (stroke), but responsive to treatment.

2025 ICD-10-CM code G43.B1

Intractable ophthalmoplegic migraine. This condition involves episodes of severe headache accompanied by paralysis of the eye muscles, and is unresponsive to treatment.

2025 ICD-10-CM code G40.B11

Intractable juvenile myoclonic epilepsy with status epilepticus. This condition is characterized by prolonged or recurrent seizures that are resistant to treatment.

2025 ICD-10-CM code G43.82

Menstrual migraine, not intractable. This refers to a severe, typically one-sided headache, vascular in nature, that is responsive to treatment. It is associated with hormonal changes during menstruation.

2025 ICD-10-CM code G44.0

Cluster headaches and other trigeminal autonomic cephalalgias (TACs).

2025 ICD-10-CM code G40.89

Other seizures. This code excludes post-traumatic seizures (R56.1), recurrent seizures NOS (G40.909), and seizures NOS (R56.9).

2025 ICD-10-CM code G40.41

Other generalized epilepsy and epileptic syndromes that are intractable (resistant to treatment).

2025 ICD-10-CM code G43.C0

Recurring headaches in children and adults, responsive to treatment, that may be a precursor to migraines. These headaches are not intractable, meaning they can be managed with treatment.

2025 ICD-10-CM code G40.401

A type of epilepsy and epileptic syndrome, not intractable, with status epilepticus. It is characterized by generalized seizures lasting for a prolonged period or recurring frequently without full recovery between episodes.

2025 ICD-10-CM code G43.809

Other migraine, not intractable, without status migrainosus. This refers to a migraine that is responsive to treatment and lasts less than 72 hours.It includes vestibular and silent migraines.

2025 ICD-10-CM code G40.201

Focal (partial) symptomatic epilepsy with complex partial seizures and status epilepticus, responsive to treatment.

2025 ICD-10-CM code G43.4

Hemiplegic migraine is a rare type of migraine with aura characterized by motor weakness (hemiplegia) on one side of the body.

2025 ICD-10-CM code G44.041

Chronic paroxysmal hemicrania, intractable. This refers to a severe, persistent, and treatment-resistant form of headache affecting one side of the head, often accompanied by autonomic symptoms like tearing or a runny nose.

2025 ICD-10-CM code G47.0

Insomnia.

2025 ICD-10-CM code G44.049

Chronic paroxysmal hemicrania, not intractable. This is a severe, unilateral headache responsive to treatment, lasting for extended periods with short remissions, and accompanied by autonomic symptoms.

2025 ICD-10-CM code G47.01

Insomnia due to a medical condition. It is important to also code the associated medical condition.

2025 ICD-10-CM code G47.00

Insomnia, unspecified. Difficulty falling asleep or staying asleep, despite adequate opportunity and circumstances for sleep.

2025 ICD-10-CM code G40.901

Epilepsy, unspecified, not intractable, with status epilepticus.