2024 ICD-10-CM Diagnosis Code G47.10

Hypersomnia, unspecified

ICD-10-CM Code:
G47.10
ICD-10 Code for:
Hypersomnia, unspecified
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Diseases of the nervous system
    (G00–G99)
    • Episodic and paroxysmal disorders
      (G40-G47)
      • Sleep disorders
        (G47)

G47.10 is a billable diagnosis code used to specify a medical diagnosis of hypersomnia, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Unspecified diagnosis codes like G47.10 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Always sleepy
  • Disorder of excessive somnolence
  • Drowsy
  • Excessive somnolence
  • Hypersomnia
  • Hypersomnia with sleep apnea
  • Oversleeps

Clinical Classification

Clinical Information

  • Grade 1 Hypersomnia, CTCAE|Grade 1 Hypersomnia

    mild increased need for sleep
  • Grade 2 Hypersomnia, CTCAE|Grade 2 Hypersomnia

    moderate increased need for sleep
  • Grade 3 Hypersomnia, CTCAE|Grade 3 Hypersomnia

    severe increased need for sleep
  • Hypersomnia

    a sleep disorder characterized by excessive sleepiness.
  • Hypersomnia, CTCAE|Hypersomnia|Hypersomnia

    a disorder characterized by characterized by excessive sleepiness during the daytime.
  • Idiopathic Hypersomnia|Primary Hypersomnia|Primary Hypersomnia

    a disorder of central nervous system etiology characterized by excessive sleepiness during the daytime.
  • IDS-C - Hypersomnia|IDSC1-Hypersomnia|IDSC1-Hypersomnia|IDSC104

    inventory of depressive symptomatology clinician-rated version (ids-c) please circle one response to each item that best describes the patient for the last seven days: hypersomnia.
  • QIDS-C - Hypersomnia|QIDSC1-Hypersomnia|QIDSC1-Hypersomnia|QIDSC104

    quick inventory of depressive symptomatology clinician-rated version (qids-c) please circle one response to each item that best describes the patient for the last seven days: hypersomnia.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Hypersomnia NOS

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert G47.10 to ICD-9-CM

  • ICD-9-CM Code: 327.10 - Organic hypersomnia NOS
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.
  • ICD-9-CM Code: 780.54 - Hypersomnia NOS
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


Sleep Disorders

What is sleep?

Sleep is a complex biological process. While you are sleeping, you are unconscious, but your brain and body functions are still active. They are doing a number of important jobs that help you stay healthy and function at your best. So when you don't get enough quality sleep, it does more than just make you feel tired. It can affect your physical and mental health, thinking, and daily functioning.

What are sleep disorders?

Sleep disorders are conditions that disturb your normal sleep patterns. There are more than 80 different sleep disorders. Some major types include:

  • Insomnia - being unable to fall asleep and stay asleep. This is the most common sleep disorder.
  • Sleep apnea - a breathing disorder in which you stop breathing for 10 seconds or more during sleep
  • Restless leg syndrome (RLS) - a tingling or prickly sensation in your legs, along with a powerful urge to move them
  • Hypersomnia - being unable to stay awake during the day. This includes narcolepsy, which causes extreme daytime sleepiness.
  • Circadian rhythm disorders - problems with the sleep-wake cycle. They make you unable to sleep and wake at the right times.
  • Parasomnia - acting in unusual ways while falling asleep, sleeping, or waking from sleep, such as walking, talking, or eating

Some people who feel tired during the day have a true sleep disorder. But for others, the real problem is not allowing enough time for sleep. It's important to get enough sleep every night. The amount of sleep you need depends on several factors, including your age, lifestyle, health, and whether you have been getting enough sleep recently. Most adults need about 7-8 hours each night.

What causes sleep disorders?

There are different causes for different sleep disorders, including:

  • Other conditions, such as heart disease, lung disease, nerve disorders, and pain
  • Mental illnesses, including depression and anxiety
  • Medicines
  • Genetics

Sometimes the cause is unknown.

There are also some factors that can contribute to sleep problems, including:

  • Caffeine and alcohol
  • An irregular schedule, such as working the night shift
  • Aging. As people age, they often get less sleep or spend less time in the deep, restful stage of sleep. They are also more easily awakened.

What are the symptoms of sleep disorders?

The symptoms of sleep disorders depend on the specific disorder. Some signs that you may have a sleep disorder include that:

  • You regularly take more than 30 minutes each night to fall asleep
  • You regularly wake up several times each night and then have trouble falling back to sleep, or you wake up too early in the morning
  • You often feel sleepy during the day, take frequent naps, or fall asleep at the wrong times during the day
  • Your bed partner says that when you sleep, you snore loudly, snort, gasp, make choking sounds, or stop breathing for short periods
  • You have creeping, tingling, or crawling feelings in your legs or arms that are relieved by moving or massaging them, especially in the evening and when trying to fall asleep
  • Your bed partner notices that your legs or arms jerk often during sleep
  • You have vivid, dreamlike experiences while falling asleep or dozing
  • You have episodes of sudden muscle weakness when you are angry or fearful, or when you laugh
  • You feel as though you cannot move when you first wake up

How are sleep disorders diagnosed?

To make a diagnosis, your health care provider will use your medical history, your sleep history, and a physical exam. You may also have a sleep study (polysomnogram). The most common types of sleep studies monitor and record data about your body during a full night of sleep. The data includes:

  • Brain wave changes
  • Eye movements
  • Breathing rate
  • Blood pressure
  • Heart rate and electrical activity of the heart and other muscles

Other types of sleep studies may check how quickly you fall asleep during daytime naps or whether you are able to stay awake and alert during the day.

What are the treatments for sleep disorders?

Treatments for sleep disorders depend on which disorder you have. They may include:

  • Good sleep habits and other lifestyle changes, such as a healthy diet and exercise
  • Cognitive behavioral therapy or relaxation techniques to reduce anxiety about getting enough sleep
  • CPAP (continuous positive airway pressure) machine for sleep apnea
  • Bright light therapy (in the morning)
  • Medicines, including sleeping pills. Usually, providers recommend that you use sleeping pills for a short period of time.
  • Natural products, such as melatonin. These products may help some people but are generally for short-term use. Make sure to check with your health care provider before you take any of them.

[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.