ICD10BillableValid for clinical use
ICD-10 Code G47.9: Sleep disorder, unspecified
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).
When is it used?
- May be used when a clinician documents sleep disorder, unspecified in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
6Diseases of the nervous system (G00-G99)
block
G40-G47Episodic and paroxysmal disorders
category
G47Sleep disorders
currentG47
Official coding notes
Inclusion terms
- Sleep disorder NOS
- Unspecified sleep-wake disorder
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
NeurologistGeneral Physician
Related codes
Sibling codes
Coverage-related procedures and services
Mapped diagnoses and classifications
SNOMED_CT 53888004high
Disturbance in sleep behavior
Source: SNOMED International ICD-10 map
SNOMED_CT 44186003high
Dyssomnia
Source: SNOMED International ICD-10 map
SNOMED_CT 443483005high
Inadequate sleep hygiene
Source: SNOMED International ICD-10 map
SNOMED_CT 247962006high
Sleep automatism
Source: SNOMED International ICD-10 map
SNOMED_CT 130989002high
Sleep deprivation
Source: SNOMED International ICD-10 map
SNOMED_CT 39898005high
Sleep disorder
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
G47.9
Common synonyms
Sleep disorder, unspecifiedSleep disorder
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.