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G47.11

✓ Billable

Idiopathic hypersomnia with long sleep time

Diseases of the nervous system (G00-G99)

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Also Known As

Idiopathic hypersomnia NOS

⚠️ Excludes2

inherited from G47.1

Rules from parent category G47.1: Hypersomnia

  • • alcohol-related hypersomnia (F10.182, F10.282, F10.982)
  • • drug-related hypersomnia (F11.182, F11.282, F11.982, F13.182, F13.282, F13.982, F14.182, F14.282, F14.982, F15.182, F15.282, F15.982, F19.182, F19.282, F19.982)
  • • hypersomnia due to a mental disorder (F51.13)
  • • hypersomnia not due to a substance or known physiological condition (F51.1-)
  • • primary hypersomnia (F51.11)
  • • sleep apnea (G47.3-)

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Code Information

CodeG47.11
BillableYes
ParentG47.1
CategoryDiseases of the nervous system (G00-G99)
Excludes10 rule(s)
Excludes26 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)