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ICD Hub / Sleep–wake disorders (G47) / 7A20.1 - Narcolepsy, Type 2
ICD-11

ICD-11 Codes
for 7A20.1 - Narcolepsy, Type 2
Teodor Jurukovski January 1, 1970
Fact checked by: Teodor Jurukovski
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Understanding Narcolepsy, Type 2

Narcolepsy, Type 2 (ICD-11 code: 7A20.1) is a chronic neurological disorder that affects the brain's ability to regulate sleep-wake cycles. It is characterised by excessive daytime sleepiness, including daily periods of an irrepressible need to sleep or daytime lapses into sleep. Unlike Narcolepsy Type 1, individuals with Narcolepsy Type 2 do not experience cataplexy, and their hypothalamic hypocretin (orexin) signalling is normal. Diagnostic findings often include abnormal manifestations of REM sleep on multiple sleep latency testing (MSLT) and/or polysomnography (PSG).

Alternative Names for Narcolepsy, Type 2

This condition is also known by several other clinical terms, which may be used in medical documentation and patient discussions. Common synonyms include: * Narcolepsy without cataplexy * Narcolepsy, Type 2 * Narcolepsy Type 2

Recognising the Symptoms of Narcolepsy, Type 2

The primary symptom of Narcolepsy, Type 2 is excessive daytime sleepiness (EDS). This can manifest as: * Irresistible urges to sleep that occur at any time of day. * Daytime lapses into sleep, where individuals may fall asleep unexpectedly. * Sleep paralysis, a temporary inability to move or speak while falling asleep or waking up. * Hypnagogic hallucinations (occurring when falling asleep) or hypnopompic hallucinations (occurring when waking up). Abnormal REM sleep patterns are typically identified through diagnostic sleep studies.

Diagnosing Narcolepsy, Type 2

A definitive diagnosis of Narcolepsy, Type 2 requires a comprehensive medical evaluation. This typically includes: * Assessment of daily periods of irrepressible sleepiness or daytime sleep lapses. * Multiple Sleep Latency Test (MSLT) and Polysomnography (PSG) findings characteristic of narcolepsy. * Absence of cataplexy. * Normal cerebrospinal fluid (CSF) hypocretin levels (if testing is performed), indicating no hypocretin deficiency. The disorder must not be attributable to another disease of the nervous system or other medical condition.

Coding and Documentation for Narcolepsy, Type 2

The official ICD-11 code for Narcolepsy, Type 2 is 7A20.1. This code is essential for accurate medical record documentation, billing, and statistical reporting. Healthcare providers should use this specific code to identify and report the condition, ensuring proper classification within the International Classification of Diseases, 11th Revision framework. This ICD-11 code for Narcolepsy, Type 2 facilitates precise tracking of patient diagnoses and supports appropriate reimbursement processes.

When to Consult a Healthcare Professional

Individuals experiencing persistent and overwhelming daytime sleepiness, uncontrollable sleep urges, or other symptoms suggestive of Narcolepsy, Type 2 should seek prompt medical advice. Early diagnosis and management are crucial for improving patient outcomes and quality of life. Consulting a healthcare professional allows for a thorough evaluation, accurate diagnosis, and the development of an appropriate treatment plan.

Frequently asked questions

What is Narcolepsy, Type 2 according to ICD-11?
Narcolepsy, Type 2 is an ICD-11 classified disorder of excessive sleepiness, characterized by daily periods of irrepressible need to sleep or daytime lapses into sleep, with normal hypocretin (orexin) signaling and the absence of cataplexy.
How is Narcolepsy, Type 2 differentiated in ICD-11?
In ICD-11, Narcolepsy, Type 2 is differentiated by the absence of cataplexy and the presence of normal hypocretin (orexin) signaling, distinguishing it from other narcolepsy types.
What is the ICD-11 code for Narcolepsy, Type 2?
The ICD-11 code for Narcolepsy, Type 2 is 7A20.1.
What are the key diagnostic features of Narcolepsy, Type 2 in ICD-11?
ICD-11 defines Narcolepsy, Type 2 by the presence of daily periods of irrepressible need to sleep or daytime lapses into sleep, normal hypocretin (orexin) signaling, and the absence of cataplexy.
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