According to the democrat law professors:
You do not need a high crime to impeach, and a high crime does not necessarily justify impeachment?!
A 'high' crime is merely an act committed by someone in power such as a president. You need a high crime in order to impeach. Since this is a political process and since it's not possible to indict a sitting president by normal powers such as the DOJ and impeachment is not based on actual criminal law. Benjamin Franklin once said that impeachment was to be considered when the president "rendered himself obnoxious".
I wouldn't look to this report to draw out specific laws, I think this report is a summary of the presidents actions only. If you're looking for actual crimes to be listed whether they are in the criminal code or not then I'd look at the soon to be drawn articles of impeachment.