Insomnia classification

Insomnia Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Insomnia from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
Diagnostic Study of Choice
History and Symptoms
Physical Examination
Laboratory Findings
Electrocardiogram
X-ray
Echocardiography and Ultrasound
CT scan
MRI
Other Imaging Findings
Other Diagnostic Studies
Treatment
Medical Therapy
Non-Pharmacological Therapy
Surgery
Primary Prevention
Secondary Prevention
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Case Studies
Case #1
Insomnia On the Web
Most recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Insomnia :All Images :X'-'ray' 'X'-'rays :Ultrasound' 'Echo & Ultrasound :CT' 'CT Images :MRI' 'MRI
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Insomnia
CDC on Insomnia
Insomnia in the news
Blogs on Insomnia
Directions to Hospitals Treating Insomnia
Risk calculators and risk factors for Insomnia

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] ; Associate Editor(s)-in-Chief: Adnan Ezici, M.D[2]

Overview

Insomnia may be classified according to the duration of difficulty sleeping into 3 groups: short-term insomnia disorder (< 3 months), chronic insomnia disorder (sleep disturbances that occur at least three times per week for > 3 months), and other insomnia disorder.

Classification

• Insomnia may be classified according to the duration of difficulty sleeping by the 3rd Edition of International Classification of Sleep Disorder (ICSD-3) into 3 groups:
  • Short-term insomnia disorder (< 3 months)
  • Chronic insomnia disorder (sleep disturbances that occur at least three times per week for > 3 months)
  • Other insomnia disorder (sleep disturbances that do not meet the criteria for aforementioned groups)

• Historically, Insomnia was classified according to the presence of a comorbid condition (primary versus secondary insomnia) and the presence of an organic cause (organic vs non-organic). Then primary insomnia further classified by the 2nd Edition of International Classification of Sleep Disorder into:
  • Psychophysiologic
  • Idiopathic
  • Paradoxical (sleep-state misperception)
• However, due to the difficulty in the distinction of associations with comorbid diseases, the uncertain direction of causality between insomnia and comorbid diseases, and insufficient treatment of the sleep disturbance in patients with secondary insomnia (this classification resulted in focusing the treatment of comorbid condition while ignoring the treatment of insomnia), ICSD-3 bring together all insomnia diagnoses (ie, “primary” and “comorbid”) under the same roof, which is chronic insomnia disorder.