ICSR Field Reference

Study Registration Country

SectionC.5 Study Identification

Data TypeA

RequiredNo

Data Last UpdatedMay 12, 2026

1.Field Definition

Element Number	C.5.1.R.2
Element Name	Study Registration Country
English Name	Study Registration Country (Study Registration Country)
Data Type	A
Max Length	2
Required	No
Allowed Values	ISO 3166-1 alpha-2, EU nullFlavor: ASKU, NASK

Allowed Null Flavors

ASKUAsked but Unknown - 질문했으나 알 수 없음

NASKNot Asked - 질문하지 않음

2.User Guidance

This data element is used to enter the country that assigned the study registration number indicated in C.5.1.r.1. The two-letter ISO 3166 Part 1 code (ISO 3166-1 alpha-2) is used to indicate the country.