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ICD-10-CM Codes F01-F99 F50-F59 F51

ICD-10-CM Diagnosis Code F51

Sleep disorders not due to a substance or known physiological condition

Excludes-2 for F51:

  • organic sleep disorders (G47.-)

Codes Hierarchy:

    • F51  Sleep disorders not due to a substance or known physiological condition
      • F51.0 Insomnia not due to a substance or known physiological condition
        • F51.01  Primary insomnia
        • F51.02  Adjustment insomnia
        • F51.03  Paradoxical insomnia
        • F51.04  Psychophysiologic insomnia
        • F51.05  Insomnia due to other mental disorder
        • F51.09  Other insomnia not due to a substance or known physiological condition
      • F51.1 Hypersomnia not due to a substance or known physiological condition
        • F51.11  Primary hypersomnia
        • F51.12  Insufficient sleep syndrome
        • F51.13  Hypersomnia due to other mental disorder
        • F51.19  Other hypersomnia not due to a substance or known physiological condition
      • F51.3  Sleepwalking [somnambulism]
      • F51.4  Sleep terrors [night terrors]
      • F51.5  Nightmare disorder
      • F51.8  Other sleep disorders not due to a substance or known physiological condition
      • F51.9  Sleep disorder not due to a substance or known physiological condition, unspecified