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F51.5

Billable

Nightmare disorder

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Repeated episodes of disturbing, vivid dreams that cause awakening and distress, typically occurring in the latter part of sleep.

Coding Tips

  • •Differentiate from night terrors by confirming vivid dream recall upon awakening
  • •Document frequency and impact on sleep quality and daytime functioning

Code Hierarchy

└F51Sleep disorders not due to a substance or known physiological condition└F51.5Nightmare disorder
└F51.5Nightmare disorder

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