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F51.13

Billable

Hypersomnia due to other mental disorder

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

What This Code Means

Excessive daytime sleepiness that is caused by another mental health condition, such as depression or bipolar disorder.

Coding Tips

  • •Code the underlying mental disorder as the primary diagnosis with F51.13 as secondary
  • •Ensure documentation explicitly connects the hypersomnia to the mental health condition

Code Also

  • associated mental disorder

Code Hierarchy

└F51Sleep disorders not due to a substance or known physiological condition└F51.1Hypersomnia not due to a substance or known physiological condition└F51.13Hypersomnia due to other mental disorder
└F51.13Hypersomnia due to other mental disorder

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