With many health insurers, a partial reimbursement possibly from the complementary insurance. You pay no deductible.
This means that in some cases you will be cheaper than with reimbursed care, see the calculation example.

Calculation example: If you are reimbursed € 40, you pay € 55 per session yourself. A course of 8 sessions will then cost you € 440. At a GZ-institution which is fully reimbursed, you pay the statutory deductible excess of €385. In addition, GZ institutions often have long waiting lists.

More information on insurance can be found on the website of CAT (Check your insurance policy for current information).