Business & farm

No, contacting support is not necessary.  

The business code is not really an important piece of information that necessarily needs to be accurate.  It is only used by the IRS for statistical purposes.

That being said, TurboTax will help determine what business code you should use based on the information that you have entered in the Work Description under General Info for your business.  As you edit and change the Work Description, the business code will change as well.