SWIFT ISO 15022 - Code REVS Financial acronyms The entire acronym collection of this site is now also available offline with this new app for iPhone and iPad. Meaning Reverse Indicator Usages Message type Field number Tag MT380 (Foreign Exchange Order) 4 22H (FX Order Transaction Type Indicator) MT381 (Foreign Exchange Order Confirmation) 4 22H (Indicator: FX Order Transaction Type Indicator)