Hello,Stephen! How are you doing?
See bellow the recertification policy for CCNA, from Cisco´s site :
According to the rules , passing any current Associate-level exam will recertify you as CCNA R&S. 200-310 exam is indeed an associate level exam for CCDA DESIGN. Passing this exam you will be a CCDA associate certified end also a CCNA R&S certified.