Your DNR request may already be visible on your health record, however this can depend on the level of access you currently have via your NHS account.
We would suggest speaking to your GP practice to ensure that you have access to your Detailed Coded Record for a more in-depth look at your medical history.
You may also ask for the DNR to be added by your GP to your Summary Care Records 'Additional Information' section, as this is most likely to be seen in an emergency care setting.