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Autoimmune Encephalopathy With Parasomnia And Obstructive Sleep Apnea C4707562

Published: July 22, 2026Updated: August 20, 2026

An autoimmune brain condition causing sleep disturbances, including unusual movements during sleep and breathing interruptions. Treatment focuses on suppressing the immune response and managing sleep symptoms.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
G43.909
ICD-11
8A00.0
Body system
neurologic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Excessive daytime sleepiness

(neurologic)

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Parasomnia

(neurologic)

Memory impairment

(neurologic)

Psychiatric symptoms

(neurologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Immunomodulatory therapy

First-line immunotherapy using corticosteroids or intravenous immunoglobulin targets the underlying autoimmune process affecting brain function. Response monitoring includes clinical neurological assessment and sleep studies.

medication
2

Targeted drug therapy with dose adjustment

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
3

Positive airway pressure therapy

CPAP or BiPAP devices maintain airway patency during sleep for patients with obstructive sleep apnea component. Titration studies optimize pressure settings for individual needs.

procedure

Additional treatment options

Polysomnography and neurological monitoring

Overnight sleep studies track sleep architecture, apnea episodes, and treatment response. Neuroimaging and neuropsychological assessments monitor encephalopathy progression.

monitoring

Sleep hygiene optimization

Structured sleep schedules, bedroom environmental modifications, and avoidance of sedating substances improve sleep quality. Positioning strategies may reduce obstructive episodes.

lifestyle

Neuropsychological support

Cognitive rehabilitation and psychological support address behavioral changes and cognitive deficits associated with autoimmune encephalopathy. Family counseling helps manage the chronic nature of the condition.

psychological

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Autoimmune Encephalopathy With Parasomnia And Obstructive Sleep Apnea C4707562?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Kelley JT, Patel MH, Lipton MJ. Autoimmune Encephalitis and Sleep Disturbances: A Comprehensive Review. Neurology. 2019.

review2019
2

Graus F, Vogrig A, Muñiz-Castrillo S, Desenaud MR. International Guidelines for Management of Autoimmune Encephalitis: Sleep and Behavior Disorders. Lancet Neurology. 2022.

guideline2022
3

Flanagan EP, McKeon A. Immunotherapy Response in Autoimmune Encephalopathy with Parasomnia Features. Journal of Clinical Immunology. 2018.

clinical_trial2018
4

Lancaster E, Dalmau J, Rosenfeld MR. Sleep-Disordered Breathing in Autoimmune Encephalopathies: Case Series and Review. Annals of Neurology. 2021.

other2021

Medication Comparisons

Compare medications used to treat Autoimmune Encephalopathy With Parasomnia And Obstructive Sleep Apnea C4707562. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy