According to The Society of Professional Journalists, these are the Code of Ethics:

• Seek Truth and Report It. Ensure the information you are acquiring is credible, refrain from using stereotypes and bias, and do not falsify reports. 
• Minimize Harm. Protect confidentiality and have empathy for those involved. 
• Act Independently. Do not allow personal bias or bribery to influence the validity of the story.
• Be Accountable. Allow room for critiques, reveal unlawful practices by corporations or other journalists, and address any mistakes made and rectify them.

Source: https://cs.stanford.edu/people/eroberts/cs181/projects/2010-11/Journalism/index16e4.html?page_id=24