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ALL MEDICAL CODES IN CATEGORY F51-F59: Behavioral syndromes associated with physiological disturbances and physical factors

2025 ICD-10-CM code F51.8

This code classifies sleep disorders without a known physiological or substance-related cause.

2025 ICD-10-CM code F51.19

Other hypersomnia not due to a substance or known physiological condition.

2025 ICD-10-CM code F51.11

Primary hypersomnia is a sleep disorder characterized by excessive daytime sleepiness despite sufficient nighttime sleep, unrelated to other medical conditions.