A European Health Insurance Card entitles the holder to reduced-cost, sometimes free, emergency treatment within the following EU countries:
Austria, Belgium, Cyprus (but not in North Cyprus), Czech, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden and Switzerland.
Since the UK left the EU, in the vast majority of cases the EHIC has been replaced by the GHIC. Although some new EHIC applications are being processed is certain conditions are met related to the Brexit withdrawal agreement.
EHIC cards that have yet to expire are still valid until that expiry date, after which you’ll need to reapply for the GHIC.
You should be aware that if you still have a valid UK-issued EHIC, it no longer provides cover for Norway, Iceland, Liechtenstein or Switzerland unless you were already on a visit there before 1 January 2021.