Is the Q-code still required?
I'm wondering if the Q-code is still necessary. I've heard about it being used in the past, but I'm not sure if it's still a requirement or if there have been any changes to the policy.
What is Q-code used for?
I'm wondering about the purpose of Q-code. I've heard about it in different contexts, but I'm not entirely sure what it's specifically used for. Can someone explain the main applications or functions of Q-code?