7A40 Central sleep apnoeas
International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01
Central sleep apnoeas are characterised by reduction or cessation of airflow due to absent or reduced respiratory effort. Central apnoea (cessation of airflow) or hypopnea (reduction in airflow) may occur in a cyclical or intermittent fashion. Patients with central sleep apnoea of various etiologies may also exhibit obstructive events, in which case diagnoses of both central sleep apnoea and obstructive sleep apnoea may be given. Note: A definitive diagnosis requires objective evidence based on polysomnography.
exclusions
sections/codes in this section (7A40-7A40)
- Primary central sleep apnoea (7A40.0)
- Primary central sleep apnoea of infancy (7A40.1)
- Primary central sleep apnoea of prematurity (7A40.2)
- Central sleep apnea with Cheyne-Stokes breathing (7A40.3)
- Central sleep apnoea due to a medical condition without Cheyne-Stokes breathing (7A40.4)
- Central sleep apnoea due to high-altitude periodic breathing (7A40.5)
- Central sleep apnoea due to a medication or substance (7A40.6)
- Treatment-emergent central sleep apnoea (7A40.7)
- Other specified central sleep apnoeas (7A40.Y)
- Central sleep apnoeas, unspecified (7A40.Z)
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