F51

Non-Billable

Sleep disorders not due to a substance or known physiological condition

F51 should not be used for reimbursement purposes as there are multiple sub-diagnoses that fall under this code. Please refer to the sub-diagnoses below.

Related Diagnoses

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