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Home/Diagnosis/ICD-10 Coding for Somnolence

ICD-10 Coding for Somnolence

R40.0

Complete ICD-10-CM coding and documentation guide for icd-10 coding for somnolence includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Excessive daytime sleepiness
Drowsiness
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Key Information: ICD-10 Coding for Somnolence

Essential facts and insights about ICD-10 Coding for Somnolence

Use ICD-10 code R40.0 for somnolence, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Somnolence

Billable Code
R40.0
Billable

Diagnostic Criteria

clinical:
  • • Epworth Sleepiness Scale score ≥10
documentation:
  • • Absence of underlying sleep disorder

Applicable To

  • • Drowsiness
  • • Excessive daytime sleepiness

Important Notes

  • • Ensure documentation supports idiopathic nature of somnolence when using R40.0.
Ancillary Codes

Additional codes that may be used with this diagnosis

G47.33

Obstructive sleep apnea (adult) (pediatric)

Use alongside R40.0 if somnolence is due to OSA.

Frequently Asked Questions

What is the ICD-10 code for somnolence?

The ICD-10 code for somnolence is R40.0, used when somnolence is idiopathic or transient without an underlying condition.

How do you code somnolence due to sleep apnea?

For somnolence due to sleep apnea, use G47.33 for obstructive sleep apnea and R40.0 if somnolence impacts care.

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