SWIFT ISO 15022 - Code CSDH Financial acronyms The entire acronym collection of this site is now also available offline with this new app for iPhone and iPad. Meaning CSD Hold: Central securities depository has set the instruction in a hold/frozen/preadvice mode. Usages Message type Field number Tag MT537 (Statement of Pending Transactions) 19 24B (Reason) MT537 (Statement of Pending Transactions) 65 24B (Reason) MT548 (Settlement Status and Processing Advice) 12 24B (Reason) MT549 (Request for Statement/Status Advice) 17 24B (Reason)