Hardly: a code of conduct is juvenile behaviour. It's like when I was a little kid and drafted a huge constitution for my amazing awesome cool club — that was just me.
Adults don't need to write down a code of conduct, because they adhere to an unwritten code of conduct. Children whinge, 'you shouldn't do that, because this says not to!'; adults don't do that, because they know that they oughtn't — and they refrain from associating with others who do. Children want their clique to gang up on the people they don't like; adults simply walk away from those people.
Childhood is all about, 'you can't'; adulthood is all about 'I won't.'