Apple Watch screen
Is glass breakage on the back of iPhone SE () covered with AppleCare+
The only way to get a definitive answer is to speak directly to Apple Care through Apple Support.
World-wide Apple Support -
Contact Apple for support and service – Apple Support (UK)
My guess is if your AppleCare+ covers accidental damage, then it likely would if the phone is still under warranty. Perhaps with a deductible.
M1 Mac mini, macOS 13.4; Watch, series 7 GPS/cellular, watchOS 9.5; iPad Pro 2nd Gen, iPadOS 16.5; iPhone 12 Pro, iOS 16.5; TV 4th Gen, tvOS 16.5; HomePods, audioOS 16.5 and Airport Express w/ Airplay 2