ZagTrader

ISO 20022 external code set

ExternalAccountIdentification1Code: Account Identification Codes

Written and maintained by ZagTrader. Last reviewed . How this page is sourced and checked

Specifies the external account identification scheme name code in the format of character string with a maximum length of 4 characters.

Definition from the ISO 20022 External Code Sets, 2Q2026 (published 28 Aug 2026).

4 codes in use. External code sets are published outside the message schemas and updated every quarter, so a new code can appear without a new message version.

Codes

  • AIINIssuer Identification NumberIssuer Identification Number (IIN) - identifies a card issuing institution in an international interchange environment. Issued by ABA (American Bankers Association).
  • BBANBBAN IdentifierBasic Bank Account Number (BBAN) - identifier used nationally by financial institutions, ie, in individual countries, generally as part of a National Account Numbering Scheme(s), to uniquely identify the account of a customer.
  • CUIDCHIPS Universal Identifier(United States) Clearing House Interbank Payments System (CHIPS) Universal Identification (UID) - identifies entities that own accounts at CHIPS participating financial institutions, through which CHIPS payments are effected. The CHIPS UID is assigned by the New York Clearing House.
  • UPICUPIC IdentifierUniversal Payment Identification Code (UPIC) - identifier used by the New York Clearing House to mask confidential data, such as bank accounts and bank routing numbers. UPIC numbers remain with business customers, regardless of banking relationship changes.

Messages that use ExternalAccountIdentification1Code

MessageElement path
pacs.002TxInfAndSts/OrgnlTxRef/DbtrAcct/Id/Othr/SchmeNm/Cd, TxInfAndSts/OrgnlTxRef/CdtrAcct/Id/Othr/SchmeNm/Cd, TxInfAndSts/OrgnlTxRef/DbtrAgtAcct/Id/Othr/SchmeNm/Cd, TxInfAndSts/OrgnlTxRef/CdtrAgtAcct/Id/Othr/SchmeNm/Cd
pain.002OrgnlPmtInfAndSts/TxInfAndSts/OrgnlTxRef/DbtrAcct/Id/Othr/SchmeNm/Cd, OrgnlPmtInfAndSts/TxInfAndSts/OrgnlTxRef/CdtrAcct/Id/Othr/SchmeNm/Cd, OrgnlPmtInfAndSts/TxInfAndSts/OrgnlTxRef/DbtrAgtAcct/Id/Othr/SchmeNm/Cd, OrgnlPmtInfAndSts/TxInfAndSts/OrgnlTxRef/CdtrAgtAcct/Id/Othr/SchmeNm/Cd
pacs.004TxInf/RtrChain/DbtrAcct/Id/Othr/SchmeNm/Cd, TxInf/RtrChain/CdtrAcct/Id/Othr/SchmeNm/Cd, GrpHdr/SttlmInf/SttlmAcct/Id/Othr/SchmeNm/Cd, TxInf/OrgnlTxRef/DbtrAcct/Id/Othr/SchmeNm/Cd
camt.056Undrlyg/TxInf/OrgnlTxRef/DbtrAcct/Id/Othr/SchmeNm/Cd, Undrlyg/TxInf/OrgnlTxRef/CdtrAcct/Id/Othr/SchmeNm/Cd, Undrlyg/TxInf/OrgnlTxRef/DbtrAgtAcct/Id/Othr/SchmeNm/Cd, Undrlyg/TxInf/OrgnlTxRef/CdtrAgtAcct/Id/Othr/SchmeNm/Cd
camt.029ModDtls/OrgnlTxRef/DbtrAcct/Id/Othr/SchmeNm/Cd, ModDtls/OrgnlTxRef/CdtrAcct/Id/Othr/SchmeNm/Cd, ModDtls/OrgnlTxRef/DbtrAgtAcct/Id/Othr/SchmeNm/Cd, ModDtls/OrgnlTxRef/CdtrAgtAcct/Id/Othr/SchmeNm/Cd
pacs.008CdtTrfTxInf/DbtrAcct/Id/Othr/SchmeNm/Cd, CdtTrfTxInf/CdtrAcct/Id/Othr/SchmeNm/Cd, CdtTrfTxInf/DbtrAgtAcct/Id/Othr/SchmeNm/Cd, CdtTrfTxInf/CdtrAgtAcct/Id/Othr/SchmeNm/Cd
pacs.009CdtTrfTxInf/DbtrAcct/Id/Othr/SchmeNm/Cd, CdtTrfTxInf/CdtrAcct/Id/Othr/SchmeNm/Cd, CdtTrfTxInf/DbtrAgtAcct/Id/Othr/SchmeNm/Cd, CdtTrfTxInf/CdtrAgtAcct/Id/Othr/SchmeNm/Cd
pain.001PmtInf/DbtrAcct/Id/Othr/SchmeNm/Cd, PmtInf/ChrgsAcct/Id/Othr/SchmeNm/Cd, PmtInf/DbtrAgtAcct/Id/Othr/SchmeNm/Cd, PmtInf/CdtTrfTxInf/CdtrAcct/Id/Othr/SchmeNm/Cd
camt.053Stmt/Acct/Id/Othr/SchmeNm/Cd, Stmt/RltdAcct/Id/Othr/SchmeNm/Cd, Stmt/Ntry/CardTx/PrePdAcct/Id/Othr/SchmeNm/Cd, Stmt/Ntry/NtryDtls/TxDtls/CardTx/PrePdAcct/Id/Othr/SchmeNm/Cd
camt.054Ntfctn/Acct/Id/Othr/SchmeNm/Cd, Ntfctn/RltdAcct/Id/Othr/SchmeNm/Cd, Ntfctn/Ntry/CardTx/PrePdAcct/Id/Othr/SchmeNm/Cd, Ntfctn/Ntry/NtryDtls/TxDtls/CardTx/PrePdAcct/Id/Othr/SchmeNm/Cd
camt.052Rpt/Acct/Id/Othr/SchmeNm/Cd, Rpt/RltdAcct/Id/Othr/SchmeNm/Cd, Rpt/Ntry/CardTx/PrePdAcct/Id/Othr/SchmeNm/Cd, Rpt/Ntry/NtryDtls/TxDtls/CardTx/PrePdAcct/Id/Othr/SchmeNm/Cd
acmt.001CshSttlm/CshAcctDtls/Id/Id/Othr/SchmeNm/Cd, InvstmtAcct/TaxRptg/CshAcctDtls/Id/Id/Othr/SchmeNm/Cd, SvgsInvstmtPlan/CshSttlm/CshAcctDtls/Id/Id/Othr/SchmeNm/Cd, WdrwlInvstmtPlan/CshSttlm/CshAcctDtls/Id/Id/Othr/SchmeNm/Cd
acmt.002CshSttlm/CshAcctDtls/Id/Id/Othr/SchmeNm/Cd, InvstmtAcct/TaxRptg/CshAcctDtls/Id/Id/Othr/SchmeNm/Cd, SvgsInvstmtPlan/CshSttlm/CshAcctDtls/Id/Id/Othr/SchmeNm/Cd, WdrwlInvstmtPlan/CshSttlm/CshAcctDtls/Id/Id/Othr/SchmeNm/Cd
acmt.003ModfdCshSttlm/CshAcctDtls/Id/Id/Othr/SchmeNm/Cd, ModfdInvstmtAcct/TaxRptg/CshAcctDtls/Id/Id/Othr/SchmeNm/Cd, ModfdAcctPties/Grntr/TaxRptg/CshAcctDtls/Id/Id/Othr/SchmeNm/Cd, ModfdAcctPties/Sttlr/TaxRptg/CshAcctDtls/Id/Id/Othr/SchmeNm/Cd
acmt.007Acct/Id/Othr/SchmeNm/Cd, RefAcct/Id/Othr/SchmeNm/Cd
acmt.008Acct/Id/Othr/SchmeNm/Cd, RefAcct/Id/Othr/SchmeNm/Cd
acmt.009Acct/Id/Othr/SchmeNm/Cd
acmt.010AcctId/Id/Othr/SchmeNm/Cd
acmt.011AcctId/Id/Othr/SchmeNm/Cd
acmt.012AcctId/Id/Othr/SchmeNm/Cd
acmt.013AcctId/Id/Othr/SchmeNm/Cd
acmt.014Rpt/Acct/Id/Othr/SchmeNm/Cd, Rpt/RefAcct/Id/Othr/SchmeNm/Cd, Rpt/BalTrfAcct/Id/Othr/SchmeNm/Cd
acmt.015Acct/Id/Othr/SchmeNm/Cd
acmt.016Acct/Id/Othr/SchmeNm/Cd
acmt.017AcctId/Id/Othr/SchmeNm/Cd
acmt.018AcctId/Id/Othr/SchmeNm/Cd
acmt.019AcctId/Id/Othr/SchmeNm/Cd, BalTrfAcct/Id/Othr/SchmeNm/Cd
acmt.020AcctId/Id/Othr/SchmeNm/Cd, BalTrfAcct/Id/Othr/SchmeNm/Cd
acmt.021AcctId/Id/Othr/SchmeNm/Cd, BalTrfAcct/Id/Othr/SchmeNm/Cd
acmt.022Mod/OrgnlPtyAndAcctId/Acct/Id/Othr/SchmeNm/Cd, Mod/UpdtdPtyAndAcctId/Acct/Id/Othr/SchmeNm/Cd
acmt.023Vrfctn/PtyAndAcctId/Acct/Id/Othr/SchmeNm/Cd
acmt.024Rpt/OrgnlPtyAndAcctId/Acct/Id/Othr/SchmeNm/Cd, Rpt/UpdtdPtyAndAcctId/Acct/Id/Othr/SchmeNm/Cd
acmt.027OdAcct/Id/Othr/SchmeNm/Cd, NewAcct/Acct/Id/Othr/SchmeNm/Cd, BalTrf/BalTrfMtd/Cdt/CdtrAcct/Id/Othr/SchmeNm/Cd, BalTrf/BalTrfMtd/Dbt/CdtrAcct/Id/Othr/SchmeNm/Cd
acmt.028OdAcct/Id/Othr/SchmeNm/Cd, NewAcct/Id/Othr/SchmeNm/Cd, PmtInstr/DbtrAcct/Id/Othr/SchmeNm/Cd, PmtInstr/ChrgsAcct/Id/Othr/SchmeNm/Cd
acmt.029OdAcct/Id/Othr/SchmeNm/Cd, PmtInstr/DbtrAcct/Id/Othr/SchmeNm/Cd, PmtInstr/ChrgsAcct/Id/Othr/SchmeNm/Cd, PmtInstr/DbtrAgtAcct/Id/Othr/SchmeNm/Cd
acmt.030OdAcct/Id/Othr/SchmeNm/Cd, NewAcct/Id/Othr/SchmeNm/Cd
acmt.031NewAcct/Id/Othr/SchmeNm/Cd, NmntdAcct/Id/Othr/SchmeNm/Cd, BalTrf/BalTrfMtd/Cdt/CdtrAcct/Id/Othr/SchmeNm/Cd, BalTrf/BalTrfMtd/Dbt/CdtrAcct/Id/Othr/SchmeNm/Cd
acmt.032OdAcct/Id/Othr/SchmeNm/Cd, BalTrf/BalTrfMtd/Cdt/CdtrAcct/Id/Othr/SchmeNm/Cd, BalTrf/BalTrfMtd/Dbt/CdtrAcct/Id/Othr/SchmeNm/Cd
acmt.034OdAcct/Id/Othr/SchmeNm/Cd, CdtInstr/CdtrAcct/Id/Othr/SchmeNm/Cd
admi.005RptQryCrit/SchCrit/AcctId/EQ/Othr/SchmeNm/Cd

And 169 more messages: see the ExternalAccountIdentification1Code page.

All ISO 20022 code sets · ISO 20022 messages

The ISO 20022 code set names, code values, names and definitions on this page are reproduced from material published at iso20022.org under the ISO 20022 Intellectual Property Rights policy. This is not the official source: the up-to-date ISO 20022 standards and repository material are published only at iso20022.org. Explanations in our own words are by ZagTrader. ZagTrader is not affiliated with or endorsed by ISO or Swift.