The "empfohlen" (recommended) in the law is usually fulfilled by the vaccination being officially recommended in the vaccination list by the STIKO of the RKI (roughly the vaccine working group of the German disease control office). But the STIKO very explicitly does not recommend AZ under the age of 60.
The Laender (states) may also recommend a vaccine, deviating from the federal STIKO recommendation. But they didn't really do that either, the wording is always very unclear and weasely around AZ. In several press statements, the phrase "auf eigene Gefahr" (at your own peril) has also occured. So I would wait for a clarification.
The Laender (states) may also recommend a vaccine, deviating from the federal STIKO recommendation. But they didn't really do that either, the wording is always very unclear and weasely around AZ. In several press statements, the phrase "auf eigene Gefahr" (at your own peril) has also occured. So I would wait for a clarification.
Edit: medical professionals seem similarly confused about the matter, KVNO is very roughly speaking a doctors guild: https://coronavirus.nrw/haftungsausschluss-bei-impfung-mit-a...