You need to first create a promotion as follows: Tools | Promotion | New Promotion: named FOC with discount set to 100%. Then do as follows.

1. Go to Financials | New Bill | Select Patient. A New Bill window will open.

2. Select +Add Items to add services or products.

3. Click on the + button beside Discount and a Promotions flyout will open.

4. Select Free of Cost(FOC) from the list and Save.

If you do not have a pre-made discount promotion called Free Of Cost(FOC), simply enter the Discount against each item in the Bill as 100%.

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