https://www.nhsbsa.nhs.uk/claim-refund-treatment-costs/claim-refund-treatment-costs-related-pre-planned-treatment-s2
Claim a refund for treatment costs related to pre-planned treatment (S2) | NHSBSA
An S2 certificate will cover eligible state-funded healthcare costs for pre-approved treatment received, within the dates of issue, on the same basis as a...
claim a refundtreatment costs
https://www.nhsbsa.nhs.uk/claim-refund-treatment-costs
Claim a refund for treatment costs | NHSBSA
How to claim a refund for treatment you paid for while visiting another country
claim a refundtreatment costsnhsbsa