ICD-10-CM › G00-G99 › G40-G47 › G47.2 Circadian rhythm sleep disorders › G47.23
Circadian rhythm sleep disorder, irregular sleep wake type
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Circadian rhythm sleep disorder, irregular sleep wake type
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from G47 Sleep disorders
Excludes2 - not included here
- nightmares (F51.5)
- nonorganic sleep disorders (F51.-)
- sleep terrors (F51.4)
- sleepwalking (F51.3)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Dyssomnia
- Inversion > sleep rhythm
- Inversion > circadian rhythm
- Inversion > nyctohemeral rhythm
- Interruption > phase-shift, sleep cycle
- Disorder > sleep-wake pattern or schedule
- Rhythm > sleep, inversion > nonorganic origin
- Interruption > sleep phase-shift, or 24 hour sleep-wake cycle
- Pattern, sleep-wake, irregular
- Irregular, irregularity > sleep-wake pattern
- Disorder > sleep > circadian rhythm > irregular sleep wake type
Codes in the same group
| Code | Description | Status |
|---|---|---|
| G47.20 | Circadian rhythm sleep disorder, unspecified type | Valid |
| G47.21 | Circadian rhythm sleep disorder, delayed sleep phase type | Valid |
| G47.22 | Circadian rhythm sleep disorder, advanced sleep phase type | Valid |
| G47.24 | Circadian rhythm sleep disorder, free running type | Valid |
| G47.25 | Circadian rhythm sleep disorder, jet lag type | Valid |
| G47.26 | Circadian rhythm sleep disorder, shift work type | Valid |
| G47.27 | Circadian rhythm sleep disorder in conditions classified elsewhere | Valid |
| G47.29 | Other circadian rhythm sleep disorder | Valid |