Narcolepsy without cataplexy
ICD-10 G47.419 is a billable code used to indicate a diagnosis of narcolepsy without cataplexy.
Narcolepsy without cataplexy is a chronic neurological disorder characterized by excessive daytime sleepiness and sudden sleep attacks that occur at inappropriate times. Unlike narcolepsy with cataplexy, individuals with this condition do not experience sudden muscle weakness triggered by strong emotions. The disorder is believed to be caused by a deficiency of hypocretin (orexin), a neurotransmitter that regulates wakefulness and arousal. Patients may also experience disrupted nighttime sleep, hypnagogic hallucinations, and sleep paralysis. Diagnosis typically involves a thorough clinical history, sleep studies (polysomnography), and the Multiple Sleep Latency Test (MSLT) to assess the degree of daytime sleepiness and the presence of sleep onset REM periods. Treatment options include lifestyle modifications, stimulant medications, and sodium oxybate to manage symptoms and improve quality of life.
Detailed sleep history, results from polysomnography, and MSLT findings.
Patients presenting with excessive daytime sleepiness, disrupted sleep patterns, and potential misdiagnosis with other sleep disorders.
Ensure clear differentiation between narcolepsy types and document all relevant symptoms.
Neurological examination findings, history of symptoms, and response to treatment.
Patients with neurological symptoms that may overlap with sleep disorders, requiring careful evaluation.
Document neurological assessments and any comorbid conditions that may affect sleep.
Used to diagnose narcolepsy and assess sleep architecture.
Complete sleep study report and interpretation.
Sleep specialists must ensure all relevant data is captured.
Narcolepsy with cataplexy includes episodes of sudden muscle weakness triggered by emotions, while narcolepsy without cataplexy does not involve these episodes but still presents with excessive daytime sleepiness and other symptoms.
