Where does COID appear in a message?

For example in camt.110, element InvstgtnData/RsnSubTp/Cd.

COID Reason Code: Request Country Identification Code

Written and maintained by ZagTrader. Last reviewed 21 October 2026. How this page is sourced and checked

COID means request country identification code in the ISO 20022 investigation reason sub type code set. Country identification code is requested. This is a country authority given organisation identification (e.g., corporate registration number)

Code: COID
ISO name: RequestCountryIdentificationCode
Status: Registered
Last updated: 2024-02-28

Official definition

Country identification code is requested. This is a country authority given organisation identification (e.g., corporate registration number)

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

Messages and fields that use ExternalInvestigationReasonSubType1Code

Message	Element path
camt.110	InvstgtnData/RsnSubTp/Cd
camt.111	InvstgtnRspn/InvstgtnData/OrgnlInvstgtnRsnSubTp/Cd

COID in other code sets

COID questions

What does COID mean in ISO 20022?: COID is Request Country Identification Code in the ExternalInvestigationReasonSubType1Code code set: Country identification code is requested. This is a country authority given organisation identification (e.g., corporate registration number)
Where does COID appear in a message?: For example in camt.110, element InvstgtnData/RsnSubTp/Cd.

All ExternalInvestigationReasonSubType1Code codes · ISO 20022 code sets

The ISO 20022 code 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.