State Pension Deduction From My Allowance

I have been medically retired from work aged 42 and receive a pension from my employer. Using the HMRC website via my government gateway account, I can see that I have the standard allowance plus blind persons allowance £12570 + £3070). I then have deduction (£5135) due to underpayment (which is correct) but an additional deduction of £4779 for 'state pension'. My total deductions are then £9914. I am not entitled to state pension until 2050, so I need to understand why it forms part of my deduction. Help please.

Hi,
Unfortunately, it is not possible to check individual tax records through this forum, if you have a question which relates to your personal tax situation or tax code please contact our Income Tax team.
Income Tax: general enquiries
On this page you will also see a link to personal tax account which may be the quickest way to review information relating to pay and tax history, tax codes and how to change them. 
Thank you.