Both hospitality and tourism are umbrella terms for a wide range of commercial activities. For example, the hospitality industry consists of lodging, food services in restaurants, planes and cruise ships, clubs, cafeterias, hospitals, etc.; and recreational facilities ranging from casinos to resorts. The tourism industry supports a traveler's need for transportation, food, lodging, amusement, and entertainment. It involves tour operators, rental cars, hotels, bars, gasoline stations, theme parks, and attractions.
While sometimes both terms are used interchangeably, they are not quite synonymous. The tourism industry serves people away from home. Hospitality also includes businesses that serve people in their local town.
Source: Zabel, D. (2003). The Best of the Web: Hospitality and Tourism Web Sites. Journal of Business & Finance Librarianship, 8(3/4), 167-179.
Identifying an industry code is the first step in your industry research. Below is a selected list of 2012 NAICS codes for hospitality and tourism research.