Official Letter No. 1804/BHXH-QLT dated August 4, 2025, issued by Vietnam Social Security, regarding the use of Personal Identification Numbers (PIN) / Citizen Identification Numbers (CID) in replacement of Social Security Numbers (SSN) and unit management codes
Pursuant to current regulations, in order to unify the management of participant data through the use of Personal Identification Numbers (PIN) and Citizen Identification Numbers (CID), ensuring integration and synchronization of databases (DB) among agencies for administrative management purposes, and to facilitate individuals and enterprises in resolving administrative procedures, Vietnam Social Security guides provincial Social Security offices to use PIN/CID in replacement of SSN and unit management codes for participants of social insurance (SI) and health insurance (HI) as follows: