7A40.0 Primary central sleep apnoea

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

Primary central sleep apnoea is of unknown etiology (idiopathic) and is characterised by recurrent, predominantly central apnoeas. Airflow and respiratory effort cease simultaneously in a repetitive fashion over the course of the night. The recurrent episodes of apnoea (more than five per hour) and associated arousals are sufficiently severe to cause symptoms such as daytime sleepiness, disturbed sleep, awakening with dyspnoea, or snoring. Note: A definitive diagnosis requires objective evidence based on polysomnography.

exclusions

• Primary central sleep apnoea of infancy  (7A40.1)
• Primary central sleep apnoea of prematurity  (7A40.2)

synonyms

• Primary central sleep apnoea

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