The apnea-hypopnea index (AHI) counts breathing pauses per hour; mild is 5–14, moderate 15–29, and severe 30 or more

https://www.slideserve.com/nuallaqqkj/living-with-a-sleep-apnea-oral-appliance-real-patient-experiences

The apnea-hypopnea index (AHI) counts breathing pauses per hour; mild is 5–14, moderate 15–29, and severe 30 or more, guiding treatment decisions and insurance coverage.