2026 ICD-10-CM Diagnosis Code G47.01Insomnia due to medical condition

ICD-10-CM Codes›G00–G99›G40-G47›G47

ICD-10-CM G47.01
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G47.01 is a billable ICD-10-CM diagnosis code for insomnia due to medical condition. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as insomnia co-occurrent and due to medical condition. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Sleep wake disorders.

Code Identity

ICD-10-CM Code
G47.01
Billable Status
Yes — Valid for Submission
Code Describes
Insomnia due to medical condition
Short Description
Insomnia due to medical condition
Same as the full description in the CMS dataset.
Parent Code
G47.0
Insomnia

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG40-G47Episodic and paroxysmal disorders
CategoryG47Sleep disorders
This CodeG47.01Insomnia due to medical condition

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Insomnia co-occurrent and due to medical condition
  • Insomnia disorder related to known organic factor
  • Insomnia due to periodic limb movement disorder
  • Periodic leg movements of sleep
  • Periodic limb movement disorder
  • Sleep related movement disorder

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Code Also

  • associated medical condition

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Insomnia(organic)
      • due to
        • medical condition

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NVS016
Sleep wake disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Insomnia

Insomnia is a common sleep disorder. If you have it, you may have trouble falling asleep, staying asleep, or both. As a result, you may get too little sleep or have poor-quality sleep. You may not feel refreshed when you wake up.

The full article covers:

  • What is insomnia?
  • What are the types of insomnia?
  • Who is at risk for insomnia?
  • What are the symptoms of insomnia?
  • What other problems can insomnia cause?
  • How is insomnia diagnosed?
  • What are the treatments for insomnia?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert G47.01 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
327.00 Organic insomnia NOS
Approximate The match is approximate rather than exact.
ICD-9-CM
327.01 Insomnia in other dis
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About G47.01Overview

Is G47.01 (Insomnia) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report insomnia due to medical condition on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of G47.01?

Under the General Equivalence Mappings, insomnia due to medical condition converts to ICD-9-CM 327.00 (organic insomnia NOS) and 327.01 (insomnia in other dis). The mapping is approximate, so confirm the match fits the documentation.

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.