ICD-10 Code G47.32 – High altitude periodic breathing (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G47.32 – High altitude periodic breathing
What it is
G47.32 identifies periodic breathing that occurs at high altitude, usually during sleep. It reflects an altitude-related breathing pattern rather than a chronic lung disorder.
Clinical signs
Clinical features vary; refer to documentation. Commonly, the record describes cyclic breathing with alternating shallow breaths and brief pauses after ascent to high altitude.
When to use this code
Use this code when the provider documents high altitude periodic breathing as the diagnosis or reason for evaluation. It may apply in travelers, climbers, or patients sleeping at altitude with documented periodic breathing. If the note only mentions altitude exposure without this pattern, check documentation.
Do not use for
Do not use this code for generic insomnia, snoring, or unspecified sleep disturbance without periodic breathing. Also avoid it when the breathing pattern is due to another diagnosed sleep or respiratory disorder.
Coding tip
Code G47.32 only when the chart clearly links periodic breathing to high altitude exposure.