The Harmonized Index of Consumer Prices category "Restaurants and Hotels (11)" is a classification of services. The category, Restaurants and Hotels (11), contains Catering Services (11.1) and Accommodation Services (11.2) categories and all subcategories therein.
Information provided in the notes pertaining to HICP classifications can be found from the source at: http://ec.europa.eu/eurostat/ramon/nomenclatures/index.cfm?TargetUrl=ACT_OTH_CLS_DLD&StrNom=HICP_2000&StrFormat=HTML&StrLanguageCode=EN&IntKey=22470387.
Copyright, European Union, 1995-2014, http://epp.eurostat.ec.europa.eu/portal/page/portal/about_eurostat/policies/copyright_licence_policy.
Statistical Office of the European Communities, Harmonized Index of Consumer Prices: Restaurants and Hotels for United States© [CP1100USM086NEST], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/CP1100USM086NEST/, July 7, 2015.