Specific code 2011 ICD-9-CM Diagnosis Code 307.43
Transient disorder of initiating or maintaining wakefulness
  • Short description: Transient hypersomnia.
  • ICD-9-CM 307.43 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 307.43 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2011 version of ICD-9-CM 307.43.
  • More recent version(s) of ICD-9-CM 307.43: 2012 2013 2014.
Disease Synonyms
  • Hypersomnia disorder related to another mental disorder
  • Hypersomnia of non-organic origin
  • Hypersomnia, nonorganic
  • Post-radiotherapy somnolence syndrome
  • Postviral excessive daytime sleepiness
Applies To
  • Hypersomnia associated with acute or intermittent emotional reactions or conflicts
Convert to ICD-10-CM: 307.43 converts approximately to:
  • 2014 ICD-10-CM F51.19 Other hypersomnia not due to a substance or known physiological condition
ICD-9-CM Volume 2 Index entries containing back-references to 307.43:
  • Disorder - see also Disease
    • wakefulness (see also Hypersomnia) 780.54
      • nonorganic origin (transient) 307.43
  • Disturbance - see also Disease
    • sleep 780.50
      • with apnea - see Apnea, sleep
      • initiation or maintenance (see also Insomnia) 780.52
      • nonorganic origin 307.40
      • specified NEC 780.59
      • wakefulness (see also Hypersomnia) 780.54
        • nonorganic origin 307.43
    • wakefulness (initiation or maintenance) (see also Hypersomnia) 780.54
      • nonorganic origin 307.43
  • Hypersomnia, unspecified 780.54
    • nonorganic origin 307.43
      • persistent (primary) 307.44
      • transient 307.43
  • Somnolence 780.09
    • nonorganic origin 307.43
  • Wakefulness disorder (see also Hypersomnia) 780.54
    • nonorganic origin 307.43
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 307.43 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2011 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.