Can a multi-role hull serve as a hospital ship?

Would using one common hull for hospital and command roles blur the line between them?

Not if one ship is clearly assigned and marked for the hospital role rather than trying to perform both functions at once.

A hull's current legal and operational role remains distinct from the other configurations its class might perform. One ship would be assigned to the hospital function instead of simultaneously acting as a command landing ship. It would be painted white and marked with red crosses so its status was visible. Multi-role design allows reconfiguration between missions without trying to claim protected status while carrying out combat functions.