2025 ICD-10-CM code F51.13
Hypersomnia due to other mental disorder. The provider documents hypersomnia due to an associated mental disorder.
Medical necessity is established by the documented presence of hypersomnia significantly impacting the patient's daily life and being a direct consequence of a diagnosed mental disorder. The medical record should reflect the clinical rationale for linking the hypersomnia to the mental health condition.
Clinicians should diagnose this condition based on patient history, signs and symptoms, a comprehensive evaluation of personal and social behavior, and a physical examination. Additional diagnostic tools such as polysomnography, multiple sleep latency tests (MSLT), and sleep diaries can also be used. Treatment should address the underlying mental disorder and may include counseling on sleep hygiene, substance use, and nutritional guidance.
In simple words: This code represents excessive daytime sleepiness caused by another mental health problem. Your doctor will also need to record a code for that separate mental health condition.
Hypersomnia due to other mental disorder refers to a sleep disorder characterized by excessive daytime sleepiness, even after adequate sleep, associated with another mental disorder.The provider must document the presence of hypersomnia and its association with a specific mental disorder. An additional code for the associated mental disorder is required when reporting this code.
Example 1: A patient with a diagnosis of schizophrenia experiences excessive daytime sleepiness despite having sufficient nighttime sleep. The physician documents the hypersomnia as being directly related to the schizophrenia., A patient diagnosed with major depressive disorder reports persistent daytime fatigue and an inability to stay awake during the day, even after a full night's sleep.The provider attributes the hypersomnia to the depression., A patient receiving treatment for generalized anxiety disorder experiences excessive sleepiness interfering with daily activities.The treating physician documents the hypersomnia as a symptom of the anxiety disorder.
Documentation should clearly establish the presence of hypersomnia and its direct relationship to the associated mental disorder.The specific mental disorder must be documented and coded separately.
- Payment Status: Active
- Specialties:Sleep medicine specialists, psychiatrists, psychologists, primary care physicians
- Place of Service:Inpatient Hospital, Outpatient Hospital, Office, Federally Qualified Health Center, Community Mental Health Center, Psychiatric Facility-Partial Hospitalization,Telehealth Provided in Patient’s Home, Telehealth Provided Other than in Patient’s Home