ICD-10-CM · Chapter 6 · G00–G99
G47.429
Narcolepsy in conditions classified elsewhere without cataplexy
Diseases of the nervous system
Quick facts
- Code
- G47.429
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 6 — Diseases of the nervous system
- Category
- G47 — Sleep disorders
- Specificity
- 6 characters
How coders use this code
ICD-10-CM G47.429 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of narcolepsy in conditions classified elsewhere without cataplexy. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in G47
- G47Sleep disorders
- G47.0Insomnia
- G47.00Insomnia, unspecified
- G47.01Insomnia due to medical condition
- G47.09Other insomnia
- G47.1Hypersomnia
- G47.10Hypersomnia, unspecified
- G47.11Idiopathic hypersomnia with long sleep time
- G47.12Idiopathic hypersomnia without long sleep time
- G47.13Recurrent hypersomnia
- G47.14Hypersomnia due to medical condition
- G47.19Other hypersomnia
- G47.2Circadian rhythm sleep disorders
- G47.20Circadian rhythm sleep disorder, unspecified type
- G47.21Circadian rhythm sleep disorder, delayed sleep phase type
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