G47.52 REM sleep behavior disorder

Billable ICD-10-CM code, FY2026.

Applies from G47 Sleep disorders

Excludes2 (not included here)

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

Applies from G47.5 Parasomnia

Excludes1 (never code together)

• alcohol induced parasomnia (F10.182, F10.282, F10.982)
• drug induced parasomnia (F11.182, F11.282, F11.982, F13.182, F13.282, F13.982, F14.182, F14.282, F14.982, F15.182, F15.282, F15.982, F19.182, F19.282, F19.982)
• parasomnia not due to a substance or known physiological condition (F51.8)

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Approximate ICD-9-CM (GEMs)

• 327.42 REM sleep behavior disorder

Code annotations containing back-references to G47.52

Back-references to G47

• Type 2 Excludes: F51 Sleep disorders not due to a substance or known physiological condition ("organic sleep disorders (G47.-)")

Diagnosis Index entries for G47.52

• Disorder (of) › REM sleep behavior

Nearby codes

• G47.421 Narcolepsy in conditions classified elsewhere with cataplexy
• G47.429 Narcolepsy in conditions classified elsewhere without cataplexy
• G47.5 Parasomnia
• G47.50 Parasomnia, unspecified
• G47.51 Confusional arousals
• G47.52 REM sleep behavior disorder (this code)
• G47.53 Recurrent isolated sleep paralysis
• G47.54 Parasomnia in conditions classified elsewhere
• G47.59 Other parasomnia
• G47.6 Sleep related movement disorders
• G47.61 Periodic limb movement disorder