DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

G47 Sleep disorders

  • Header · not billable

G47 is not billable. The category heads 43 billable codes in FY2027, grouped under 9 subdivisions.

Index → code

Where it sits

  1. Chapter 6 Diseases of the nervous system (G00-G99)
  2. G40-G47 Episodic and paroxysmal disorders (G40-G47)
  3. G47 Sleep disorders
Billable codes
43
Subdivisions
9
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
84

Codes in G47

  1. G47.0
    Insomnia 3 billable codes
    Header
  2. G47.1
    Hypersomnia
    Header
    Excludes2 6

    Excludes2

  3. G47.10
    Hypersomnia, unspecified
    Billable
    Inclusion terms 1

    Inclusion terms

    • Hypersomnia NOS
  4. G47.11
    Idiopathic hypersomnia with long sleep time
    Billable
    Inclusion terms 1

    Inclusion terms

    • Idiopathic hypersomnia NOS
  5. G47.12
    Idiopathic hypersomnia without long sleep time
    Billable
  6. G47.13
    Recurrent hypersomnia
    Billable
    Inclusion terms 2

    Inclusion terms

    • Kleine-Levin syndrome
    • Menstrual related hypersomnia
  7. G47.14
    Hypersomnia due to medical condition
    Billable
    Code also 1

    Code also

    • associated medical condition
  8. G47.19
    Other hypersomnia
    Billable
  9. G47.2
    Circadian rhythm sleep disorders
    Header
    Inclusion terms 3

    Inclusion terms

    • Disorders of the sleep wake schedule
    • Inversion of nyctohemeral rhythm
    • Inversion of sleep rhythm
  10. G47.20
    Circadian rhythm sleep disorder, unspecified type
    Billable
    Inclusion terms 1

    Inclusion terms

    • Sleep wake schedule disorder NOS
  11. G47.21
    Circadian rhythm sleep disorder, delayed sleep phase type
    Billable
    Inclusion terms 1

    Inclusion terms

    • Delayed sleep phase syndrome
  12. G47.22
    Circadian rhythm sleep disorder, advanced sleep phase type
    Billable
  13. G47.23
    Circadian rhythm sleep disorder, irregular sleep wake type
    Billable
    Inclusion terms 1

    Inclusion terms

    • Irregular sleep-wake pattern
  14. G47.24
    Circadian rhythm sleep disorder, free running type
    Billable
    Inclusion terms 1

    Inclusion terms

    • Circadian rhythm sleep disorder, non-24-hour sleep-wake type
  15. G47.25
    Circadian rhythm sleep disorder, jet lag type
    Billable
  16. G47.26
    Circadian rhythm sleep disorder, shift work type
    Billable
  17. G47.27
    Circadian rhythm sleep disorder in conditions classified elsewhere
    Billable
    Code first 1

    Code first

    • underlying condition
  18. G47.29
    Other circadian rhythm sleep disorder
    Billable
  19. G47.3
    Sleep apnea
    Header
    Excludes1 4, Code also 1

    Excludes1

    • apnea NOS (R06.81) R06.81
    • Cheyne-Stokes breathing (R06.3) R06.3
    • pickwickian syndrome (E66.2) E66.2
    • sleep apnea of newborn (P28.3-) P28.3

    Code also

    • any associated underlying condition
  20. G47.30
    Sleep apnea, unspecified
    Billable
    Inclusion terms 1

    Inclusion terms

    • Sleep apnea NOS
  21. G47.31
    Primary central sleep apnea
    Billable
    Inclusion terms 1

    Inclusion terms

    • Idiopathic central sleep apnea
  22. G47.32
    High altitude periodic breathing
    Billable
  23. G47.33
    Obstructive sleep apnea (adult) (pediatric)
    Billable
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Obstructive sleep apnea hypopnea

    Excludes1

    • obstructive sleep apnea of newborn (P28.3-) P28.3
  24. G47.34
    Idiopathic sleep related nonobstructive alveolar hypoventilation
    Billable
    Inclusion terms 1

    Inclusion terms

    • Sleep related hypoxia
  25. G47.35
    Congenital central alveolar hypoventilation syndrome
    Billable
  26. G47.36
    Sleep related hypoventilation in conditions classified elsewhere
    Billable
    Inclusion terms 1, Code first 1

    Inclusion terms

    • Sleep related hypoxemia in conditions classified elsewhere

    Code first

    • underlying condition
  27. G47.37
    Central sleep apnea in conditions classified elsewhere
    Billable
    Code first 1

    Code first

    • underlying condition
  28. G47.39
    Other sleep apnea
    Billable
  29. G47.4
    Narcolepsy and cataplexy
    Header
  30. G47.41
    Narcolepsy
    Header
  31. G47.411
    Narcolepsy with cataplexy
    Billable
  32. G47.419
    Narcolepsy without cataplexy
    Billable
    Inclusion terms 1

    Inclusion terms

    • Narcolepsy NOS
  33. G47.42
    Narcolepsy in conditions classified elsewhere
    Header
    Code first 1

    Code first

    • underlying condition
  34. G47.421
    Narcolepsy in conditions classified elsewhere with cataplexy
    Billable
  35. G47.429
    Narcolepsy in conditions classified elsewhere without cataplexy
    Billable
  36. G47.5
    Parasomnia
    Header
    Excludes1 3

    Excludes1

  37. G47.50
    Parasomnia, unspecified
    Billable
    Inclusion terms 1

    Inclusion terms

    • Parasomnia NOS
  38. G47.51
    Confusional arousals
    Billable
  39. G47.52
    REM sleep behavior disorder
    Billable
  40. G47.53
    Recurrent isolated sleep paralysis
    Billable
  41. G47.54
    Parasomnia in conditions classified elsewhere
    Billable
    Code first 1

    Code first

    • underlying condition
  42. G47.59
    Other parasomnia
    Billable
  43. G47.6
    Sleep related movement disorders
    Header
    Excludes2 1

    Excludes2

    • restless legs syndrome (G25.81) G25.81
  44. G47.61
    Periodic limb movement disorder
    Billable
  45. G47.62
    Sleep related leg cramps
    Billable
  46. G47.63
    Sleep related bruxism
    Billable
    Excludes1 1

    Excludes1

    • psychogenic bruxism (F45.8) F45.8
  47. G47.69
    Other sleep related movement disorders
    Billable
  48. G47.8
    Other sleep disorders
    Billable
    Inclusion terms 1

    Inclusion terms

    • Other specified sleep-wake disorder
  49. G47.9
    Sleep disorder, unspecified
    Billable
    Inclusion terms 2

    Inclusion terms

    • Sleep disorder NOS
    • Unspecified sleep-wake disorder

Sources of each column.

Instructions

At G47

Excludes2

  • nightmares (F51.5) F51.5
  • nonorganic sleep disorders (F51.-) F51
  • sleep terrors (F51.4) F51.4
  • sleepwalking (F51.3) F51.3

Notes that also apply

Chapter 6 instructions (Excludes2 8): printed on the chapter 6 page.

Index entries

  • Hypersomnia (organic) → G47.10
  • Klein(e)-Levin syndrome → G47.13
  • Sleep-wake schedule disorder → G47.20
  • Pattern, sleep-wake, irregular → G47.23
  • Changing sleep-work schedule, affecting sleep → G47.26
  • Shifting sleep-work schedule (affecting sleep) → G47.26
  • Hypopnea, obstructive sleep apnea → G47.33
  • Gélineau's syndrome → G47.419
  • Narcolepsy → G47.419
  • Parasomnia → G47.50
  • Arousals, confusional → G47.51
  • Confusional arousals → G47.51
  • Hypersomnia (organic)idiopathic → G47.11
  • Hypersomnia (organic)menstrual related → G47.13
  • Hypersomnia (organic)recurrent → G47.13
  • SyndromeKlein(e)-Levine → G47.13
  • Hypersomnia (organic)specified NEC → G47.19
  • Rhythmsleep, inversion → G47.2-
  • Sleeprhythm inversion → G47.2-
  • Delay, delayedsleep phase syndrome → G47.21
  • Syndromedelayed sleep phase → G47.21
  • Irregular, irregularitysleep-wake pattern (rhythm) → G47.23
  • Rapidtime-zone change syndrome → G47.25
  • Syndromejet lag → G47.25
  • Syndromerapid time-zone change → G47.25
  • Syndrometime-zone (rapid) → G47.25
  • Apnea, apneic (of) (spells)sleep → G47.30
  • Hypoxiasleep-related → G47.34
  • Hypoventilationcongenital central alveolar → G47.35
  • Hypoxemiasleep related, in conditions classified elsewhere → G47.36
  • Gélineau's syndromewith cataplexy → G47.411
  • Narcolepsywith cataplexy → G47.411
  • SyndromeGelineau's → G47.419
  • Narcolepsyin conditions classified elsewhere → G47.429
  • Parasomniaorganic → G47.50
  • Disorder (of)REM sleep behavior → G47.52
  • Paralysis, paralytic (complete) (incomplete)recurrent isolated sleep → G47.53
  • Paralysis, paralytic (complete) (incomplete)sleep, recurrent isolated → G47.53
  • Parasomniain conditions classified elsewhere → G47.54
  • Parasomniaspecified NEC → G47.59

44 more, longer entries are not listed; the search box finds them by word.

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