CAT 10 - Combinability, Priceable Unit.
Combinability is the process of using multiple fares, or portions of multiple fares, to arrive at a complete fare to be charged to the passenger.
101 - Open Jaw
102 - 2 Component CT/RT
103 - More than 2 component CT
104 - End on End
105 - Add on Fare Construction
106 - Carrier combination
107 - Tariff/Rule Combinations
108 - One-Way and Round-Trip Fare Class/Type Combinations
109 - Open Jaw sets