ISO 20022 · External code set

Narrative type codes

Specifies the external narrative type code in the format of a character string with a maximum length of 4 characters. The list of valid codes is an external code list published separately. External code sets can be downloaded from www.iso20022.org.

7 registered codesSource release: August 2026 (v3)
Registered codes in ExternalNarrativeType1Code. Select a code for its full definition and source details.
CodePublished name and definition
ADDIAdditional Terms And Conditions

Narrative text describing the additional terms and conditions.

CHARCharge Details

Narrative text describing the charge details.

DRAWDrawing Details

Narrative text describing the drawing details.

PRASProceeds Assignable

Narrative text describing the assignment of proceeds terms and conditions.

TEFFTerms Of Effectiveness

Narrative text describing the terms of effectiveness.

TRNFTransfer

Narrative text describing the transfer terms and conditions.

TVARTerms Of Variation

Narrative text describing the terms of variation.

Message references 8

Versions listed in the source workbook, including older versions. This list does not establish which messages a bank, network or provider supports.

  • tsrv.004.001.01Undertaking Amendment Request V01
  • tsrv.007.001.01Undertaking Amendment Notification V01
  • tsin.005.001.01Undertaking Application V01
  • tsrv.001.001.01Undertaking Issuance V01
  • tsrv.006.001.01Undertaking Amendment Advice V01
  • tsrv.003.001.01Undertaking Issuance Notification V01
  • tsrv.002.001.01Undertaking Issuance Advice V01
  • tsrv.005.001.01Undertaking Amendment V01

Source: UsageInMsgs sheet in 2Q2026_externalcodesets_v3.xlsx.