The classification of Sleep-wake Disorders has been hindered by the structural problem of ICD-10, which is based on the traditional concept of dichotomizing neurological (organic) and psychiatric (non-organic) Sleep-wake Disorders without appropriate evidence or clinical validity. Recent advances in sleep science and Sleep-wake Disorders have clarified separate entities, which were incorporated into the third edition of the International Classification of Sleep Disorders (ICSD-3). ICD-11 classifies Sleep-wake Disorders in one independent chapter corresponding to the updated ICSD-3. ICD-11 is expected to provide key statistics to promote research and sleep medicine.
 Author's abstract