Airline Document Type Codes Table 50 Airline Document Type Codes Code Description 01 Passenger ticket 02 Additional collection 03 Excess baggage 04 Miscellaneous charge order (MCO) or prepaid ticket authorization 05 Special service ticket 06 Supported refund 07 Unsupported refund 08 Lost ticket application 09 Tour order voucher 10 Ticket by mail 11 Undercharge adjustment 12 Group ticket 13 Exchange adjustment 14 SPD or air freight 15 In-flight adjustment 16 Agency passenger ticket 17 Agency tour order or voucher 18 Agency miscellaneous charge order (MCO) 19 Agency exchange order 20 Agency group ticket 21 Debit adjustment for duplicate refund or use 22 In-flight merchandise order 23 Catalogue merchandise order 24 In-flight phone charges 25 Frequent flyer fee or purchase 26 Kennel charge 27 Animal transportation charge 28 Firearms case 29 Upgrade charge 30 Credit for unused transportation 31 Credit for class of service adjustment 32 Credit for denied boarding 33 Credit for miscellaneous refund 34 Credit for lost ticket refund 35 Credit for exchange refund 36 Credit for overcharge adjustment 37 Credit for multiple Unused tickets 38 Exchange order 39 Self-service ticket 41 In-flight duty-free purchase 42 Senior citizen discount booklets 43 Club membership fee 44 Coupon book 45 In-flight charges 46 Tour deposit 47 Frequent flyer overnight delivery charge 48 Frequent flyer fulfillment 49 Small package delivery 50 Vendor sale 51 Miscellaneous taxes or fees 52 Travel agency fee 60 Vendor refund or credit 64 Duty free sale 65 Preferred seat upgrade 66 Cabin upgrade 67 Lounge or club access or day pass 68 Agent assisted reservation or ticketing fee 69 Ticket change or cancel fee 70 Trip insurance 71 Unaccompanied minor 72 Standby fee 73 Curbside baggage 74 In-flight medical equipment 75 Ticket or pass print fee 76 Checked sporting or special equipment 77 Dry ice fee 78 Mail or postage fee 79 Club membership fee or temporary trial 80 Frequent flyer activation or reinstatement 81 Gift certificate 82 Onboard or in-flight prepaid voucher 83 Optional services fee 84 Advance purchase for excess baggage 85 Advance purchase for preferred seat upgrade 86 Advance purchase for cabin upgrade 87 Advance purchase for optional services 88 WiFi 89 Packages 90 In-flight entertainment or internet access 91 Overweight bag fee 92 Sleep sets 93 Special purchase fee