Usage patterns
〈物〉のコードを書くto write code for something
I wrote the code for a new app.
コードを解読するto decode/crack a code
The expert decoded the secret code.
〈物〉のコードに従うto follow a (dress/conduct) code
You need to follow the company's dress code.
コードを破るto break/violate a code (of conduct or rules)
He ended up breaking the industry's code of conduct.