Specific code 2014 ICD-9-CM Diagnosis Code 327.35
Circadian rhythm sleep disorder, jet lag type
  • Billable Code
  • Short description: Circadian rhythm-jetlag.
  • ICD-9-CM 327.35 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 327.35 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Jet lag (finding)
  • Sleep disorder, circadian rhythm, jet lag type
Clinical Information
  • A subtype of circadian rhythm sleep disorder in which the individual exhibits an endogenous pattern of sleep and wakefulness that comes into conflict with the pattern of sleep and wakefulness required by a new time zone.
Convert to ICD-10-CM: 327.35 converts directly to:
  • 2014 ICD-10-CM G47.25 Circadian rhythm sleep disorder, jet lag type
ICD-9-CM Volume 2 Index entries containing back-references to 327.35:
  • Disorder - see also Disease
    • sleep 780.50
      • with apnea - see Apnea, sleep
      • alcohol induced 291.82
      • arousal 307.46
      • circadian rhythm 327.30
      • drug induced 292.85
      • initiation or maintenance (see also Insomnia) 780.52
      • nonorganic origin 307.40
      • organic specified type NEC 327.8
      • periodic limb movement 327.51
      • specified NEC 780.59
      • wake
        • cycle - see Disorder, sleep, circadian rhythm
        • schedule - see Disorder, sleep, circadian rhythm
  • Rapid
    • time-zone change syndrome 327.35
  • Syndrome - see also Disease
    • jet lag 327.35
    • rapid time-zone change 327.35
    • time-zone (rapid) 327.35
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 327.35 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 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.