2026 ICD-10-CM Diagnosis Code G47.23Circadian rhythm sleep disorder, irregular sleep wake type
ICD-10-CM Codes›G00–G99›G40-G47›G47
- Billable — Valid for Submission
- Chronic Condition
G47.23 is a billable ICD-10-CM diagnosis code for circadian rhythm sleep disorder, irregular sleep wake type. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 11 through 13, 91 through 93. Coders also document this condition as irregular sleep-wake pattern. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Sleep wake disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Irregular sleep-wake pattern
- Non-organic disorder of the sleep-wake schedule
- Non-organic sleep disorder
- Sleep-wake schedule disorder, frequently changing type
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Irregular sleep-wake pattern
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.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disorder (of) See Also: Disease;
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Sleep Disorders
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.
The full article covers:
- What is sleep?
- What are sleep disorders?
- What causes sleep disorders?
- What are the symptoms of sleep disorders?
- How are sleep disorders diagnosed?
- What are the treatments for sleep disorders?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert G47.23 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About G47.23Overview
What is the ICD-10 code for circadian rhythm sleep disorder, irregular sleep wake type?
The ICD-10-CM code for circadian rhythm sleep disorder, irregular sleep wake type is G47.23 (sometimes written as G4723). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is G47.23 (Circadian rhythm sleep disorders) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report circadian rhythm sleep disorder, irregular sleep wake type on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does G47.23 group to?
When circadian rhythm sleep disorder, irregular sleep wake type is the principal diagnosis on an inpatient stay, it groups to MS-DRG 11, 12, 13, 91, 92, 93, with relative weights from 0.7963 to 5.4541 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of G47.23?
Under the General Equivalence Mappings, circadian rhythm sleep disorder, irregular sleep wake type converts to ICD-9-CM 327.33 (circadian rhym-irreg slp). The mapping is a direct match.
