BIK payments, no P11D

My employer has accounted for tax on medical benefits, so doesn't list any separate value on my P60. I also get no P11D. If I understand it correctly I still need the separate values for my tax return. My employer says the HMRC portal should give me the figures but I've been unable to find them anywhere. Is it normal that the only way to get this number is to add up all my salary slips? Doesn't sound right.

Hi ,
 

If your employer has payrolled your medical or any other benefits, you do not need to declare this on your tax return - the appropriate calculation has already been made through your wage. Thank you .