Hypersomnia

**Excludes2:** - 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-)