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R40.0

Billable

Somnolence

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

What This Code Means

A state of excessive sleepiness or drowsiness where the person can be awakened with stimulation.

Coding Tips

  • •Somnolence differs from stupor in that the patient can be aroused; document the level of responsiveness to stimuli
  • •Investigate and code the underlying cause if identified, such as medication side effects or sleep disorders

Excludes 1 — Do NOT code together

Code Hierarchy

└R40Somnolence, stupor and coma└R40.0Somnolence
└R40.0Somnolence

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