327.39 CIRCADIAN RHYM SLEEP NEC


Code Information

Diagnosis Code: 327.39

Short Description: Circadian rhym sleep NEC

Long Description: Other circadian rhythm sleep disorder

Code Classification:

  • Diseases of the nervous system (320–359)
    • Inflammatory diseases of the central nervous system (320-327)
      • 327 Organic sleep disorders
        • 327.39 Circadian rhym sleep NEC

Code Version: 2015 ICD-9-CM


References to Index of Diseases and Injuries

The code 327.39 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • Disorder - see also Disease
    • sleep 780.50
      • circadian rhythm 327.30
        • other 327.39
  • Inversion
    • sleep rhythm 327.39
      • nonorganic origin 307.45
  • Irregular, irregularity
    • sleep-wake rhythm (non-24-hour) 327.39
      • nonorganic origin 307.45
  • Rhythm
    • sleep, inversion 327.39
      • nonorganic origin 307.45
  • Sleep
    • rhythm inversion 327.39
      • nonorganic origin 307.45

Crosswalk Information

The code 327.39 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
327.39 Right Arrow G47.29 Other circadian rhythm sleep disorder
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
327.00 Organic insomnia, unspecified
327.01 Insomnia due to medical condition classified elsewhere
327.02 Insomnia due to mental disorder
327.09 Other organic insomnia
327.10 Organic hypersomnia, unspecified
327.11 Idiopathic hypersomnia with long sleep time
327.12 Idiopathic hypersomnia without long sleep time
327.13 Recurrent hypersomnia
327.14 Hypersomnia due to medical condition classified elsewhere
327.15 Hypersomnia due to mental disorder
327.19 Other organic hypersomnia
327.20 Organic sleep apnea, unspecified
327.21 Primary central sleep apnea
327.22 High altitude periodic breathing
327.23 Obstructive sleep apnea (adult)(pediatric)
327.24 Idiopathic sleep related non-obstructive alveolar hypoventilation
327.25 Congenital central alveolar hypoventilation syndrome
327.26 Sleep related hypoventilation/hypoxemia in conditions classifiable elsewhere
327.27 Central sleep apnea in conditions classified elsewhere
327.29 Other organic sleep apnea
327.30 Circadian rhythm sleep disorder, unspecified
327.31 Circadian rhythm sleep disorder, delayed sleep phase type
327.32 Circadian rhythm sleep disorder, advanced sleep phase type
327.33 Circadian rhythm sleep disorder, irregular sleep-wake type
327.34 Circadian rhythm sleep disorder, free-running type
327.35 Circadian rhythm sleep disorder, jet lag type
327.36 Circadian rhythm sleep disorder, shift work type
327.37 Circadian rhythm sleep disorder in conditions classified elsewhere
327.40 Organic parasomnia, unspecified
327.41 Confusional arousals
327.42 REM sleep behavior disorder
327.43 Recurrent isolated sleep paralysis
327.44 Parasomnia in conditions classified elsewhere
327.49 Other organic parasomnia
327.51 Periodic limb movement disorder
327.52 Sleep related leg cramps
327.53 Sleep related bruxism
327.59 Other organic sleep related movement disorders
327.8 Other organic sleep disorders


This page was last updated on: 10/1/2014