Code F is not for a distribution paid directly to charity. Code F indicates a payment to YOU from a charitable gift annuity. A charitable gift annuity is not an IRA.
You are not permitted to change the code from what the payer provided on the Form 1099-R. Does the Form 1099-R provided to you by the payer have code F in box 7? I suspect not.
If you had a distribution paid to charity as a QCD from an IRA, the Form 1099-R provided by the payer should have code 7 in box 7 and have the IRA/SEP/SIMPE box marked. You must enter it this way into TurboTax. TurboTaxLisaBr's answer describes how answer the follow-up questions to entering this Form 1099-R.
