ISO 20022 bank transaction code SECU OTHB: CSD Blocked transactions
In ISO 20022 bank transaction codes, domain SECU (Securities) with family OTHB means CSD Blocked transactions. Represents total of all cash legs for trades settling via CSD that have been matched but blocked by the CSD in order to not settle It has 19 sub-family codes, listed below.
Sub-family codes
| Code | Name | Definition |
|---|---|---|
| SECU/OTHB/CHRG | Charges (Generic) | Generic charges related to the transaction without further details available |
| SECU/OTHB/COMM | Commission (Generic) | Generic commissions without further details related to the transaction |
| SECU/OTHB/COME | Commission excluding taxes (Generic) | Generic commissions without taxes related to the transaction without further details available |
| SECU/OTHB/COMI | Commission including taxes (Generic) | Generic commissions including taxes related to the transaction without further details available |
| SECU/OTHB/CAJT | Credit Adjustments (Generic) | Generic credit or debit adjustments related to the transaction without further details available |
| SECU/OTHB/DAJT | Debit Adjustments (Generic) | Generic credit or debit adjustments related to the transaction without further details available |
| SECU/OTHB/XCHG | Exchange Traded | Representing cash legs of transactions traded in exchanges - this code is only to be used where the service-provider does not distinguish between transactions going through CCP and other transactions |
| SECU/OTHB/XCHC | Exchange Traded CCP | Representing cash legs of transactions in exchanges, going through CCP functions |
| SECU/OTHB/XCHN | Exchange Traded Non-CCP | Represents cash legs of transactions traded in exchanges, not going through CCP functions |
| SECU/OTHB/FEES | Fees (Generic) | Generic fees related to the transaction without further details available |
| SECU/OTHB/INTR | Interests (Generic) | Generic interest related to the transaction without further details available |
| SECU/OTHB/COMT | Non Taxable commissions (Generic) | Generic non-taxable commissions related to the transaction without further details available |
| SECU/OTHB/NTAV | Not available | The “Not Available” Sub-Family is used to cater for the Bank Transaction Code mandatory field, when no further details are available for the Bank Transaction Code, e.g. a received credit transfer is reported but no Sub-Family is available in the information provided in the transaction. |
| SECU/OTHB/OTCG | OTC | Represents the cash legs of transactions ‘over the counter’ (OTC) exchanges - this code is only to be used where the service-provider does not distinguish between transactions going through CCP and other transactions |
| SECU/OTHB/OTCC | OTC CCP | Represents the cash legs of transactions ‘over the counter’ (OTC), going through CCP functions |
| SECU/OTHB/OTCN | OTC Non-CCP | Represents the cash legs of transactions ‘over the counter’ (OTC), not going through CCP functions |
| SECU/OTHB/OTHR | Other | The “Other” Sub-Family is used to cater for the Bank Transaction Code mandatory field, when the reported Family does not match any of the Families listed in the specified Domain, but further details are available in addition to the Domain and Family codes. |
| SECU/OTHB/RIMB | Reimbursement (Generic) | Generic reimbursement of costs related to the transaction without further details available |
| SECU/OTHB/TAXE | Taxes (Generic) | Generic taxes related to the transaction without further details available |
How it appears in camt.053
In camt.052, camt.053 and camt.054, each entry carries its code in the BkTxCd block. For example, SECU/OTHB/CHRG:
<BkTxCd>
<Domn>
<Cd>SECU</Cd>
<Fmly>
<Cd>OTHB</Cd>
<SubFmlyCd>CHRG</SubFmlyCd>
</Fmly>
</Domn>
</BkTxCd>
Other families in the SECU domain
Related: camt.053 explained, ISO 20022 and all ISO 20022 bank transaction codes.
Where Polynopsis fits
Polynopsis reads bank statement files in BAI2, MT940 and ISO 20022 camt.053, read-only, and puts every bank balance into one live position with payout partner, exchange and stablecoin wallet balances, including money in flight.
Sources
- Bank Transaction Codes external code list description (November 2025) · ISO 20022
- Bank Transaction Codes codification workbook (30 November 2025) · ISO 20022
Know where all your money is.
Polynopsis gives cross-border payment teams one live position across every bank, payout partner, exchange and wallet, including money in flight, and warns before a corridor runs dry.
About Polynopsis
Polynopsis is liquidity management software for cross-border payment companies. The name joins poly, many, and synopsis, a seeing together: one live view of money spread across many banks, payout partners, exchanges and stablecoin wallets, including money in flight, with a warning before any corridor runs dry.
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