ICD-11 classes
07 Sleep-wake disorders
Sleep-related breathing disorders
7A42 — Sleep-related hypoventilation or hypoxemia disorders
ICD-11 7A42 — Sleep-related hypoventilation or hypoxemia disorders
The primary feature of these disorders is insufficient sleep related ventilation, resulting in abnormally elevated arterial partial pressure of carbon dioxide (PaCO2) during sleep. Sleep-related hypoxemia is diagnosed when overnight monitoring reveals sustained (> 5 minutes) decline in oxygen saturation to ≤ 88% in adults (or ≤ 90% in children) for ≥ 5 minutes.Note: A definitive diagnosis requires objective evidence based on polysomnography as well as carbon dioxide (CO2) monitoring during sleep (by arterial, end-tidal or transcutaneous measures).
The diagnosis includes nothing.
The diagnosis excludes nothing.
Diagnosis with code 7A42 contains 9 clarifying diagnoses:
- 7A42.0 — Obesity hypoventilation syndrome
- 7A42.1 — Congenital central alveolar sleep-related hypoventilation
- 7A42.2 — Non-congenital central hypoventilation with hypothalamic abnormalities
- 7A42.3 — Idiopathic central alveolar hypoventilation
- 7A42.4 — Sleep-related hypoventilation due to a medication or substance
- 7A42.5 — Sleep-related hypoventilation due to medical condition
- 7A42.6 — Sleep-related hypoxemia due to a medical condition
- 7A42.Y — Other specified sleep-related hypoventilation or hypoxemia disorders
- 7A42.Z — Sleep-related hypoventilation or hypoxemia disorders, unspecified
The diagnosis is coded elsewhere: