Medicare measures your use of hospital services (including in a psychiatric hospital) in benefit periods. A benefit period begins the day you’re admitted as an inpatient and ends after you haven’t had any inpatient care for 60 days in a row.1
Here are the Part A costs for hospital stays in 2025:
- Deductible–$1,676 for each benefit period
- Hospital coinsurance–$0 for the first 60 days of inpatient care each benefit period; $419 per day for days 61–90; $838 per each "lifetime reserve day" after day 90 for each benefit period (up to 60 days over your lifetime)
- Skilled nursing facility (SNF) coinsurance–$0 for the first 20 days of inpatient care each benefit period; $209.50 per day for days 21–100; all costs for each day after day 100
There’s no limit to the number of benefit periods for mental health care in a general hospital. However, if you get care in psychiatric hospital, Part A only pays for up to 190 days of inpatient psychiatric hospital services during your lifetime.1