What are MCC Codes? 

MCC stands for Merchant Classification Category. Every type of business that accepts Visa or Mastercard has a MCC code associated with their business. David explains why the MCC code used for your business can impact the approval rate for your transactions (the wrong MCC code can result in more declined transactions), as well as the costs that you pay when opening your merchant account.
Source: www.merchant-a...
Visa merchant data standards with a listing of MCC Codes: usa.visa.com/c...