G47.2 Circadian rhythm sleep disorders

Non-billable header with 9 child codes.

Applicable to

• Disorders of the sleep wake schedule
• Inversion of nyctohemeral rhythm
• Inversion of sleep rhythm

Applies from G47 Sleep disorders

Excludes2 (not included here)

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

Codes under G47.2

• G47.20 Circadian rhythm sleep disorder, unspecified type
• G47.21 Circadian rhythm sleep disorder, delayed sleep phase type
• G47.22 Circadian rhythm sleep disorder, advanced sleep phase type
• G47.23 Circadian rhythm sleep disorder, irregular sleep wake type
• G47.24 Circadian rhythm sleep disorder, free running type
• G47.25 Circadian rhythm sleep disorder, jet lag type
• G47.26 Circadian rhythm sleep disorder, shift work type
• G47.27 Circadian rhythm sleep disorder in conditions classified elsewhere
• G47.29 Other circadian rhythm sleep disorder

Code annotations containing back-references to G47.2

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 G47.2

• Rhythm › sleep, inversion
• Sleep › rhythm inversion

Nearby codes

• G47.11 Idiopathic hypersomnia with long sleep time
• G47.12 Idiopathic hypersomnia without long sleep time
• G47.13 Recurrent hypersomnia
• G47.14 Hypersomnia due to medical condition
• G47.19 Other hypersomnia
• G47.2 Circadian rhythm sleep disorders (this code)
• G47.20 Circadian rhythm sleep disorder, unspecified type
• G47.21 Circadian rhythm sleep disorder, delayed sleep phase type
• G47.22 Circadian rhythm sleep disorder, advanced sleep phase type
• G47.23 Circadian rhythm sleep disorder, irregular sleep wake type
• G47.24 Circadian rhythm sleep disorder, free running type