ICD-10-CM Code For Sleep Disorders: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group G47 includes disorders of sleep and wakefulness such as insomnia, hypersomnia, sleep apnea, circadian rhythm sleep-wake disorders, and parasomnias that affect sleep quality, duration, and daytime function. These ICD-10-CM diagnosis codes are used to document clinical presentations including severity, associated symptoms, comorbid conditions, and the need for specialized testing or treatment such as polysomnography or continuous positive airway pressure therapy. Accurate coding within the ICD-10-CM G47 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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ICD-10-CM G47: Sleep Disorders Overview

This group includes diagnoses for disorders of sleep and wakefulness affecting sleep architecture, duration, and quality. These conditions primarily target the nervous system and respiratory-related aspects of sleep and can significantly impact daytime functioning and comorbidity management. Accurate coding ensures clinical records reflect severity and complexity and supports appropriate reimbursement for sleep medicine services.

When to Use

Use a code from this group when a clinician documents a diagnosed sleep disorder that explains a patient’s sleep complaints, daytime symptoms, or the need for diagnostic testing or treatment. Select the specific code to reflect the type of sleep disorder, documented severity, and any associated comorbid conditions or complications.

ICD-10-CM Codes

43 rows

ICD-10-CM Code	Description
G47.00	Insomnia, unspecified
G47.01	Insomnia due to medical condition
G47.09	Other insomnia
G47.10	Hypersomnia, unspecified
G47.11	Idiopathic hypersomnia with long sleep time
G47.12	Idiopathic hypersomnia without long sleep time
G47.13	Recurrent hypersomnia
G47.14	Hypersomnia due to medical condition
G47.19	Other hypersomnia
G47.20	Circadian rhythm sleep disorder, unspecified type
G47.21	Circadian rhythm sleep disorder, delayed sleep phase type
G47.22	Circadian rhythm sleep disorder, advanced sleep phase type
G47.23	Circadian rhythm sleep disorder, irregular sleep wake type
G47.24	Circadian rhythm sleep disorder, free running type
G47.25	Circadian rhythm sleep disorder, jet lag type
G47.26	Circadian rhythm sleep disorder, shift work type
G47.27	Circadian rhythm sleep disorder in conditions classified elsewhere
G47.29	Other circadian rhythm sleep disorder
G47.30	Sleep apnea, unspecified
G47.31	Primary central sleep apnea

Showing 1–20 of 43

DRG Codes

11 rows

DRG Code	Description
011	Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC
012	Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC
013	Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC
091	Other Disorders of Nervous System with MCC
092	Other Disorders of Nervous System with CC
093	Other Disorders of Nervous System without CC/MCC
154	Other Ear, Nose, Mouth and Throat Diagnoses with MCC
155	Other Ear, Nose, Mouth and Throat Diagnoses with CC
156	Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC
204	Respiratory Signs and Symptoms
887	Other Mental Disorder Diagnoses

Typical Clinical Scenarios

A middle-aged patient presents to the sleep clinic with excessive daytime sleepiness, loud habitual snoring, witnessed apneas reported by the bed partner, and an elevated apnea–hypopnea index on polysomnography consistent with obstructive events during sleep. The evaluation is for a chronic sleep-disordered breathing condition requiring diagnosis and ongoing management, so a sleep-related breathing disorder code is assigned. Typical codes: G47.33, G47.30
A pediatric patient is brought to the emergency department after a violent, brief episode of sudden limb jerking and confusion on awakening; the episode was nocturnal, recurrent, and witnessed by caregivers, prompting urgent neurology and sleep evaluation to distinguish sleep-related movement or parasomnia from seizure. Because the presentation is an episodic parasomnia or sleep-related movement disorder occurring during sleep, an appropriate episodic sleep disorder code is used. Typical codes: G47.51, G47.52
An adult with chronic insomnia related to a major depressive disorder follows up for management of persistent difficulties initiating and maintaining sleep despite treatment of mood symptoms; insomnia significantly impairs daytime functioning and is documented as a comorbid condition needing targeted behavioral or medical therapy. A chronic primary or comorbid insomnia diagnosis code from this group is therefore assigned. Typical codes: G47.00, G47.01}

Related Codes

G40-EPILEPSY-AND-RECURRENT-SEIZURES

ICD-10-CM Code For Epilepsy And Recurrent Seizures: Group Overview

G43-MIGRAINE-DISORDERS

ICD-10-CM Code For Migraine: Group Overview

G44-OTHER-HEADACHE-SYNDROMES

ICD-10-CM Code For Other Headache Syndromes: Group Overview

G45-TRANSIENT-CEREBRAL-ISCHEMIC-ATTACKS

ICD-10-CM Code For Transient Cerebral Ischemic Attacks And Related Syndromes: Group Overview

G46-VASCULAR-SYNDROMES-OF-BRAIN

ICD-10-CM Code For Vascular Syndromes Of Brain In Cerebrovascular Diseases: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-CM Codes

43 rows

ICD-10-CM Code	Description
G47.00	Insomnia, unspecified
G47.01	Insomnia due to medical condition
G47.09	Other insomnia
G47.10	Hypersomnia, unspecified
G47.11	Idiopathic hypersomnia with long sleep time
G47.12	Idiopathic hypersomnia without long sleep time
G47.13	Recurrent hypersomnia
G47.14	Hypersomnia due to medical condition
G47.19	Other hypersomnia
G47.20	Circadian rhythm sleep disorder, unspecified type
G47.21	Circadian rhythm sleep disorder, delayed sleep phase type
G47.22	Circadian rhythm sleep disorder, advanced sleep phase type
G47.23	Circadian rhythm sleep disorder, irregular sleep wake type
G47.24	Circadian rhythm sleep disorder, free running type
G47.25	Circadian rhythm sleep disorder, jet lag type
G47.26	Circadian rhythm sleep disorder, shift work type
G47.27	Circadian rhythm sleep disorder in conditions classified elsewhere
G47.29	Other circadian rhythm sleep disorder
G47.30	Sleep apnea, unspecified
G47.31	Primary central sleep apnea

Showing 1–20 of 43

DRG Codes

11 rows

DRG Code	Description
011	Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC
012	Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC
013	Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC
091	Other Disorders of Nervous System with MCC
092	Other Disorders of Nervous System with CC
093	Other Disorders of Nervous System without CC/MCC
154	Other Ear, Nose, Mouth and Throat Diagnoses with MCC
155	Other Ear, Nose, Mouth and Throat Diagnoses with CC
156	Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC
204	Respiratory Signs and Symptoms
887	Other Mental Disorder Diagnoses

Typical Clinical Scenarios

A middle-aged patient presents to the sleep clinic with excessive daytime sleepiness, loud habitual snoring, witnessed apneas reported by the bed partner, and an elevated apnea–hypopnea index on polysomnography consistent with obstructive events during sleep. The evaluation is for a chronic sleep-disordered breathing condition requiring diagnosis and ongoing management, so a sleep-related breathing disorder code is assigned. Typical codes: G47.33, G47.30
A pediatric patient is brought to the emergency department after a violent, brief episode of sudden limb jerking and confusion on awakening; the episode was nocturnal, recurrent, and witnessed by caregivers, prompting urgent neurology and sleep evaluation to distinguish sleep-related movement or parasomnia from seizure. Because the presentation is an episodic parasomnia or sleep-related movement disorder occurring during sleep, an appropriate episodic sleep disorder code is used. Typical codes: G47.51, G47.52
An adult with chronic insomnia related to a major depressive disorder follows up for management of persistent difficulties initiating and maintaining sleep despite treatment of mood symptoms; insomnia significantly impairs daytime functioning and is documented as a comorbid condition needing targeted behavioral or medical therapy. A chronic primary or comorbid insomnia diagnosis code from this group is therefore assigned. Typical codes: G47.00, G47.01}

Related Codes

G40-EPILEPSY-AND-RECURRENT-SEIZURES

ICD-10-CM Code For Epilepsy And Recurrent Seizures: Group Overview

G43-MIGRAINE-DISORDERS

ICD-10-CM Code For Migraine: Group Overview

G44-OTHER-HEADACHE-SYNDROMES

ICD-10-CM Code For Other Headache Syndromes: Group Overview

G45-TRANSIENT-CEREBRAL-ISCHEMIC-ATTACKS

ICD-10-CM Code For Transient Cerebral Ischemic Attacks And Related Syndromes: Group Overview

G46-VASCULAR-SYNDROMES-OF-BRAIN

ICD-10-CM Code For Vascular Syndromes Of Brain In Cerebrovascular Diseases: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Sleep Disorders: Group Overview

Sign up for ICD-10-CM Code For Sleep Disorders: Group Overview policy alerts

ICD-10-CM G47: Sleep Disorders Overview

ICD-10-CM Code For Sleep Disorders: Group Overview

Sign up for ICD-10-CM Code For Sleep Disorders: Group Overview policy alerts

ICD-10-CM G47: Sleep Disorders Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which conditions are included in ICD-10-CM group `G47`?

How does accurate coding within `G47` support reimbursement?

Which `G47` codes indicate sleep apnea and related subtypes?

What circadian rhythm sleep-wake disorders are represented in `G47`?

Which DRGs may be related to `G47` diagnoses for inpatient grouping?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which conditions are included in ICD-10-CM group `G47`?

How does accurate coding within `G47` support reimbursement?

Which `G47` codes indicate sleep apnea and related subtypes?

What circadian rhythm sleep-wake disorders are represented in `G47`?

Which DRGs may be related to `G47` diagnoses for inpatient grouping?

References