Idiopathic hypersomnia without long sleep time
ICD-10 G47.12 is a billable code used to indicate a diagnosis of idiopathic hypersomnia without long sleep time.
Idiopathic hypersomnia without long sleep time is a sleep disorder characterized by excessive daytime sleepiness despite a sufficient amount of sleep at night. Patients typically experience prolonged sleep episodes, but unlike narcolepsy, they do not have cataplexy or significant sleep fragmentation. The condition is idiopathic, meaning the exact cause is unknown, and it is not attributable to other sleep disorders such as sleep apnea or circadian rhythm disorders. Patients may report difficulty waking up, prolonged sleep inertia, and a tendency to nap frequently throughout the day. Diagnosis often involves a comprehensive sleep study (polysomnography) and multiple sleep latency tests (MSLT) to assess the degree of daytime sleepiness and rule out other conditions. Treatment options may include stimulant medications, lifestyle modifications, and behavioral therapies aimed at managing symptoms and improving quality of life.
Detailed sleep history, results of polysomnography, and MSLT findings.
Patients presenting with excessive daytime sleepiness, difficulty waking, and prolonged sleep episodes.
Ensure that all differential diagnoses are ruled out before coding G47.12.
Neurological examination findings, history of sleep patterns, and any comorbid conditions.
Patients with neurological conditions presenting with hypersomnia symptoms.
Consider potential neurological causes of hypersomnia that may need to be documented.
Used to diagnose sleep disorders including G47.12.
Results of the sleep study must be documented in the patient record.
Sleep specialists should ensure comprehensive interpretation of sleep study results.
G47.12 refers specifically to idiopathic hypersomnia without long sleep time, while G47.10 refers to narcolepsy without cataplexy, which has different diagnostic criteria and treatment approaches.
