G47 - Sleep disorders
G47.4 - Narcolepsy and cataplexy
G47.41 - Narcolepsy
G47.411 - Narcolepsy with cataplexy
G47.419 - Narcolepsy without cataplexy
G47.42 - Narcolepsy in conditions classified elsewhere
G47.421 - Narcolepsy in conditions classified elsewhere with cataplexy
G47.429 - Narcolepsy in conditions classified elsewhere without cataplexy