ICD-10-CM G47.421: Narcolepsy in conditions classified elsewhere with cataplexy

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About ICD-10-CM Code G47.421 (Narcolepsy in conditions classified elsewhere with cataplexy)

ICD-10-CM code G47.421 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM G47.421 became effective on October 1, 2024.

This page provides detailed information about G47.421 - Narcolepsy in conditions classified elsewhere with cataplexy. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Narcolepsy in conditions classified elsewhere with cataplexy.