Yes, it's fine to lump the medical expenses together.
TurboTax allows itemized entry amounts for your own records if wanted.
According to the CRA website:
You can claim eligible medical expenses on line 330 or line 331 of Schedule 1, Federal Tax, of your income tax and benefit return.
Use line 330 to claim eligible medical expenses that you or your spouse or common-law partner paid for:
Use line 331 to claim eligible medical expenses that you or your spouse or common-law partner paid for the following persons who depended on you for support:
Follow these steps to find out how to calculate the amount to enter on lines 330 and 331 of your income tax and benefit return.
On line 330 of Schedule 1, Federal Tax, enter the total amount that you, or your spouse or common-law partner paid in 2015 for eligible medical expenses.
On the line below line 330, enter whichever is less:
Subtract the amount of step 2 from the amount on line 330, and enter the result on the following line of Schedule 1.
Claim the corresponding provincial or territorial non-refundable tax credit on line 5868 of your provincial or territorialForm 428.
Compare the amount you can claim with the amount your spouse or common-law partner would be able to claim. It may be better for the spouse or common-law partner with the lower net income (line 236) to claim the eligible medical expenses.
So yes, you can enter everything as a lump sum.