ICD-10-CM code "G47.42": Narcolepsy in conditions classified elsewhere (2024)

Excludes

1. Diseases of the nervous system (G00-G99)

   Type 2certain conditions originating in the perinatal period (P04-P96)

   Type 2certain infectious and parasitic diseases (A00-B99)

   Type 2complications of pregnancy, childbirth and the puerperium (O00-O9A)

   Type 2congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)

   Type 2endocrine, nutritional and metabolic diseases (E00-E88)

   Type 2injury, poisoning and certain other consequences of external causes (S00-T88)

   Type 2neoplasms (C00-D49)

   Type 2symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

2. Episodic and paroxysmal disorders (G40-G47)
3. Sleep disorders (G47)

   Type 2nightmares (F51.5)

   Type 2nonorganic sleep disorders (F51.-)

   Type 2sleep terrors (F51.4)

   Type 2sleepwalking (F51.3)

4. Narcolepsy and cataplexy (G47.4)
5. Narcolepsy in conditions classified elsewhere (G47.42)

Includes

1. Diseases of the nervous system (G00-G99)
2. Episodic and paroxysmal disorders (G40-G47)
3. Sleep disorders (G47)
4. Narcolepsy and cataplexy (G47.4)
5. Narcolepsy in conditions classified elsewhere (G47.42)

Subcategories

• Narcolepsy in conditions classified elsewhere with cataplexy (G47.421)
• Narcolepsy in conditions classified elsewhere without cataplexy (G47.429)